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authorvincentdarley <vincentdarley>2003-04-14 15:45:44 (GMT)
committervincentdarley <vincentdarley>2003-04-14 15:45:44 (GMT)
commitfc8ca7b64060c121189509c2a390627088bf2f85 (patch)
tree74444b936f24402204e38c25adc44d99449c4a26 /generic
parentb0cc421ee0a6c1691d7db034c52ae9fcb5295627 (diff)
downloadtcl-fc8ca7b64060c121189509c2a390627088bf2f85.zip
tcl-fc8ca7b64060c121189509c2a390627088bf2f85.tar.gz
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filesystem fixes backported
Diffstat (limited to 'generic')
-rw-r--r--generic/tclIOUtil.c3967
1 files changed, 2046 insertions, 1921 deletions
diff --git a/generic/tclIOUtil.c b/generic/tclIOUtil.c
index 924689a..6464a5b 100644
--- a/generic/tclIOUtil.c
+++ b/generic/tclIOUtil.c
@@ -17,7 +17,7 @@
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclIOUtil.c,v 1.77.2.1 2003/03/18 10:51:31 vincentdarley Exp $
+ * RCS: @(#) $Id: tclIOUtil.c,v 1.77.2.2 2003/04/14 15:45:49 vincentdarley Exp $
*/
#include "tclInt.h"
@@ -30,44 +30,77 @@
#include "tclWinInt.h"
#endif
-/*
- * Prototypes for procedures defined later in this file.
+/*
+ * struct FilesystemRecord --
+ *
+ * A filesystem record is used to keep track of each
+ * filesystem currently registered with the core,
+ * in a linked list. Pointers to these structures
+ * are also kept by each "path" Tcl_Obj, and we must
+ * retain a refCount on the number of such references.
*/
+typedef struct FilesystemRecord {
+ ClientData clientData; /* Client specific data for the new
+ * filesystem (can be NULL) */
+ Tcl_Filesystem *fsPtr; /* Pointer to filesystem dispatch
+ * table. */
+ int fileRefCount; /* How many Tcl_Obj's use this
+ * filesystem. */
+ struct FilesystemRecord *nextPtr;
+ /* The next filesystem registered
+ * to Tcl, or NULL if no more. */
+} FilesystemRecord;
-static void DupFsPathInternalRep _ANSI_ARGS_((Tcl_Obj *srcPtr,
- Tcl_Obj *copyPtr));
-static void FreeFsPathInternalRep _ANSI_ARGS_((Tcl_Obj *listPtr));
-static void UpdateStringOfFsPath _ANSI_ARGS_((Tcl_Obj *objPtr));
-static int SetFsPathFromAny _ANSI_ARGS_((Tcl_Interp *interp,
- Tcl_Obj *objPtr));
-static Tcl_Obj* MakeFsPathFromRelative _ANSI_ARGS_((Tcl_Interp *interp,
- Tcl_Obj *objPtr, Tcl_Obj *cwdPtr));
-static Tcl_Obj* FSNormalizeAbsolutePath
- _ANSI_ARGS_((Tcl_Interp* interp, Tcl_Obj *pathPtr));
-static int TclNormalizeToUniquePath
- _ANSI_ARGS_((Tcl_Interp *interp, Tcl_Obj *pathPtr,
- int startAt));
-static int SetFsPathFromAbsoluteNormalized
- _ANSI_ARGS_((Tcl_Interp *interp, Tcl_Obj *objPtr));
-static int FindSplitPos _ANSI_ARGS_((char *path, char *separator));
-static Tcl_PathType FSGetPathType _ANSI_ARGS_((Tcl_Obj *pathObjPtr,
+/*
+ * The internal TclFS API provides routines for handling and
+ * manipulating paths efficiently, taking direct advantage of
+ * the "path" Tcl_Obj type.
+ *
+ * These functions are not exported at all at present.
+ */
+
+int TclFSCwdPointerEquals _ANSI_ARGS_((Tcl_Obj* objPtr));
+int TclFSMakePathFromNormalized _ANSI_ARGS_((Tcl_Interp *interp,
+ Tcl_Obj *objPtr, ClientData clientData));
+int TclFSNormalizeToUniquePath _ANSI_ARGS_((Tcl_Interp *interp,
+ Tcl_Obj *pathPtr, int startAt, ClientData *clientDataPtr));
+Tcl_Obj* TclFSMakePathRelative _ANSI_ARGS_((Tcl_Interp *interp,
+ Tcl_Obj *objPtr, Tcl_Obj *cwdPtr));
+Tcl_Obj* TclFSInternalToNormalized _ANSI_ARGS_((
+ Tcl_Filesystem *fromFilesystem, ClientData clientData,
+ FilesystemRecord **fsRecPtrPtr, int *epochPtr));
+int TclFSEnsureEpochOk _ANSI_ARGS_((Tcl_Obj* pathObjPtr, int theEpoch,
+ Tcl_Filesystem **fsPtrPtr));
+void TclFSSetPathDetails _ANSI_ARGS_((Tcl_Obj *pathObjPtr,
+ FilesystemRecord *fsRecPtr, ClientData clientData,
+ int theEpoch));
+
+/*
+ * Private variables for use in this file
+ */
+extern Tcl_Filesystem tclNativeFilesystem;
+extern int theFilesystemEpoch;
+
+/*
+ * Private functions for use in this file
+ */
+Tcl_PathType FSGetPathType _ANSI_ARGS_((Tcl_Obj *pathObjPtr,
Tcl_Filesystem **filesystemPtrPtr,
int *driveNameLengthPtr));
-static Tcl_PathType GetPathType _ANSI_ARGS_((Tcl_Obj *pathObjPtr,
+Tcl_PathType GetPathType _ANSI_ARGS_((Tcl_Obj *pathObjPtr,
Tcl_Filesystem **filesystemPtrPtr,
int *driveNameLengthPtr, Tcl_Obj **driveNameRef));
-
+Tcl_FSPathInFilesystemProc NativePathInFilesystem;
+static Tcl_Obj* TclFSNormalizeAbsolutePath
+ _ANSI_ARGS_((Tcl_Interp* interp, Tcl_Obj *pathPtr,
+ ClientData *clientDataPtr));
/*
- * Define the 'path' object type, which Tcl uses to represent
- * file paths internally.
+ * Prototypes for procedures defined later in this file.
*/
-Tcl_ObjType tclFsPathType = {
- "path", /* name */
- FreeFsPathInternalRep, /* freeIntRepProc */
- DupFsPathInternalRep, /* dupIntRepProc */
- UpdateStringOfFsPath, /* updateStringProc */
- SetFsPathFromAny /* setFromAnyProc */
-};
+
+static FilesystemRecord* FsGetIterator(void);
+static void FsReleaseIterator(void);
+
/*
* These form part of the native filesystem support. They are needed
@@ -306,26 +339,6 @@ TCL_DECLARE_MUTEX(obsoleteFsHookMutex)
#endif /* USE_OBSOLETE_FS_HOOKS */
/*
- * A filesystem record is used to keep track of each
- * filesystem currently registered with the core,
- * in a linked list.
- */
-typedef struct FilesystemRecord {
- ClientData clientData; /* Client specific data for the new
- * filesystem (can be NULL) */
- Tcl_Filesystem *fsPtr; /* Pointer to filesystem dispatch
- * table. */
- int fileRefCount; /* How many Tcl_Obj's use this
- * filesystem. */
- struct FilesystemRecord *nextPtr;
- /* The next filesystem registered
- * to Tcl, or NULL if no more. */
-} FilesystemRecord;
-
-static FilesystemRecord* GetFilesystemRecord
- _ANSI_ARGS_((Tcl_Filesystem *fromFilesystem, int *epoch));
-
-/*
* Declare the native filesystem support. These functions should
* be considered private to Tcl, and should really not be called
* directly by any code other than this file (i.e. neither by
@@ -338,10 +351,9 @@ static FilesystemRecord* GetFilesystemRecord
* We cannot make all of these static, since some of them
* are implemented in the platform-specific directories.
*/
-static Tcl_FSPathInFilesystemProc NativePathInFilesystem;
static Tcl_FSFilesystemSeparatorProc NativeFilesystemSeparator;
static Tcl_FSFreeInternalRepProc NativeFreeInternalRep;
-static Tcl_FSDupInternalRepProc NativeDupInternalRep;
+Tcl_FSDupInternalRepProc NativeDupInternalRep;
static Tcl_FSCreateInternalRepProc NativeCreateNativeRep;
static Tcl_FSFileAttrStringsProc NativeFileAttrStrings;
static Tcl_FSFileAttrsGetProc NativeFileAttrsGet;
@@ -383,7 +395,7 @@ Tcl_FSListVolumesProc TclpObjListVolumes;
* 'native filesystem implementation' should not be delving inside
* here!
*/
-static Tcl_Filesystem tclNativeFilesystem = {
+Tcl_Filesystem tclNativeFilesystem = {
"native",
sizeof(Tcl_Filesystem),
TCL_FILESYSTEM_VERSION_1,
@@ -447,7 +459,7 @@ static FilesystemRecord nativeFilesystemRecord = {
* filesystems. Any time it changes, all cached filesystem
* representations are suspect and must be freed.
*/
-static int theFilesystemEpoch = 0;
+int theFilesystemEpoch = 0;
/*
* Stores the linked list of filesystems.
@@ -472,49 +484,6 @@ static Tcl_Condition filesystemOkToModify = NULL;
TCL_DECLARE_MUTEX(filesystemMutex)
/*
- * struct FsPath --
- *
- * Internal representation of a Tcl_Obj of "path" type. This
- * can be used to represent relative or absolute paths, and has
- * certain optimisations when used to represent paths which are
- * already normalized and absolute.
- *
- * Note that 'normPathPtr' can be a circular reference to the
- * container Tcl_Obj of this FsPath.
- */
-typedef struct FsPath {
- Tcl_Obj *translatedPathPtr; /* Name without any ~user sequences.
- * If this is NULL, then this is a
- * pure normalized, absolute path
- * object, in which the parent Tcl_Obj's
- * string rep is already both translated
- * and normalized. */
- Tcl_Obj *normPathPtr; /* Normalized absolute path, without
- * ., .. or ~user sequences. If the
- * Tcl_Obj containing
- * this FsPath is already normalized,
- * this may be a circular reference back
- * to the container. If that is NOT the
- * case, we have a refCount on the object. */
- Tcl_Obj *cwdPtr; /* If null, path is absolute, else
- * this points to the cwd object used
- * for this path. We have a refCount
- * on the object. */
- int flags; /* Flags to describe interpretation */
- ClientData nativePathPtr; /* Native representation of this path,
- * which is filesystem dependent. */
- int filesystemEpoch; /* Used to ensure the path representation
- * was generated during the correct
- * filesystem epoch. The epoch changes
- * when filesystem-mounts are changed. */
- struct FilesystemRecord *fsRecPtr;
- /* Pointer to the filesystem record
- * entry to use for this path. */
-} FsPath;
-
-#define TCLPATH_APPENDED 1
-#define TCLPATH_RELATIVE 2
-/*
* Used to implement Tcl_FSGetCwd in a file-system independent way.
* This is protected by the cwdMutex below.
*/
@@ -546,8 +515,8 @@ typedef struct FsDivertLoad {
/* Now move on to the basic filesystem implementation */
-static int
-FsCwdPointerEquals(objPtr)
+int
+TclFSCwdPointerEquals(objPtr)
Tcl_Obj* objPtr;
{
Tcl_MutexLock(&cwdMutex);
@@ -559,7 +528,7 @@ FsCwdPointerEquals(objPtr)
return 0;
}
}
-
+
static FilesystemRecord*
FsGetIterator(void) {
@@ -856,6 +825,131 @@ Tcl_FSUnregister(fsPtr)
/*
*----------------------------------------------------------------------
*
+ * Tcl_FSMatchInDirectory --
+ *
+ * This routine is used by the globbing code to search a directory
+ * for all files which match a given pattern. The appropriate
+ * function for the filesystem to which pathPtr belongs will be
+ * called. If pathPtr does not belong to any filesystem and if it
+ * is NULL or the empty string, then we assume the pattern is to be
+ * matched in the current working directory. To avoid each
+ * filesystem's Tcl_FSMatchInDirectoryProc having to deal with this
+ * issue, we create a pathPtr on the fly (equal to the cwd), and
+ * then remove it from the results returned. This makes filesystems
+ * easy to write, since they can assume the pathPtr passed to them
+ * is an ordinary path. In fact this means we could remove such
+ * special case handling from Tcl's native filesystems.
+ *
+ * If 'pattern' is NULL, then pathPtr is assumed to be a fully
+ * specified path of a single file/directory which must be
+ * checked for existence and correct type.
+ *
+ * Results:
+ *
+ * The return value is a standard Tcl result indicating whether an
+ * error occurred in globbing. Error messages are placed in
+ * interp, but good results are placed in the resultPtr given.
+ *
+ * Recursive searches, e.g.
+ *
+ * glob -dir $dir -join * pkgIndex.tcl
+ *
+ * which must recurse through each directory matching '*' are
+ * handled internally by Tcl, by passing specific flags in a
+ * modified 'types' parameter. This means the actual filesystem
+ * only ever sees patterns which match in a single directory.
+ *
+ * Side effects:
+ * The interpreter may have an error message inserted into it.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+Tcl_FSMatchInDirectory(interp, result, pathPtr, pattern, types)
+ Tcl_Interp *interp; /* Interpreter to receive error messages. */
+ Tcl_Obj *result; /* List object to receive results. */
+ Tcl_Obj *pathPtr; /* Contains path to directory to search. */
+ CONST char *pattern; /* Pattern to match against. */
+ Tcl_GlobTypeData *types; /* Object containing list of acceptable types.
+ * May be NULL. In particular the directory
+ * flag is very important. */
+{
+ Tcl_Filesystem *fsPtr = Tcl_FSGetFileSystemForPath(pathPtr);
+ if (fsPtr != NULL) {
+ Tcl_FSMatchInDirectoryProc *proc = fsPtr->matchInDirectoryProc;
+ if (proc != NULL) {
+ return (*proc)(interp, result, pathPtr, pattern, types);
+ }
+ } else {
+ Tcl_Obj* cwd;
+ int ret = -1;
+ if (pathPtr != NULL) {
+ int len;
+ Tcl_GetStringFromObj(pathPtr,&len);
+ if (len != 0) {
+ /*
+ * We have no idea how to match files in a directory
+ * which belongs to no known filesystem
+ */
+ Tcl_SetErrno(ENOENT);
+ return -1;
+ }
+ }
+ /*
+ * We have an empty or NULL path. This is defined to mean we
+ * must search for files within the current 'cwd'. We
+ * therefore use that, but then since the proc we call will
+ * return results which include the cwd we must then trim it
+ * off the front of each path in the result. We choose to deal
+ * with this here (in the generic code), since if we don't,
+ * every single filesystem's implementation of
+ * Tcl_FSMatchInDirectory will have to deal with it for us.
+ */
+ cwd = Tcl_FSGetCwd(NULL);
+ if (cwd == NULL) {
+ if (interp != NULL) {
+ Tcl_SetResult(interp, "glob couldn't determine "
+ "the current working directory", TCL_STATIC);
+ }
+ return TCL_ERROR;
+ }
+ fsPtr = Tcl_FSGetFileSystemForPath(cwd);
+ if (fsPtr != NULL) {
+ Tcl_FSMatchInDirectoryProc *proc = fsPtr->matchInDirectoryProc;
+ if (proc != NULL) {
+ Tcl_Obj* tmpResultPtr = Tcl_NewListObj(0, NULL);
+ Tcl_IncrRefCount(tmpResultPtr);
+ ret = (*proc)(interp, tmpResultPtr, cwd, pattern, types);
+ if (ret == TCL_OK) {
+ int resLength;
+
+ ret = Tcl_ListObjLength(interp, tmpResultPtr, &resLength);
+ if (ret == TCL_OK) {
+ int i;
+
+ for (i = 0; i < resLength; i++) {
+ Tcl_Obj *elt;
+
+ Tcl_ListObjIndex(interp, tmpResultPtr, i, &elt);
+ Tcl_ListObjAppendElement(interp, result,
+ TclFSMakePathRelative(interp, elt, cwd));
+ }
+ }
+ }
+ Tcl_DecrRefCount(tmpResultPtr);
+ }
+ }
+ Tcl_DecrRefCount(cwd);
+ return ret;
+ }
+ Tcl_SetErrno(ENOENT);
+ return -1;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
* Tcl_FSMountsChanged --
*
* Notify the filesystem that the available mounted filesystems
@@ -969,7 +1063,7 @@ Tcl_FSData(fsPtr)
/*
*---------------------------------------------------------------------------
*
- * FSNormalizeAbsolutePath --
+ * TclFSNormalizeAbsolutePath --
*
* Description:
* Takes an absolute path specification and computes a 'normalized'
@@ -1000,10 +1094,11 @@ Tcl_FSData(fsPtr)
*
*---------------------------------------------------------------------------
*/
-static Tcl_Obj*
-FSNormalizeAbsolutePath(interp, pathPtr)
+Tcl_Obj*
+TclFSNormalizeAbsolutePath(interp, pathPtr, clientDataPtr)
Tcl_Interp* interp; /* Interpreter to use */
Tcl_Obj *pathPtr; /* Absolute path to normalize */
+ ClientData *clientDataPtr;
{
int splen = 0, nplen, eltLen, i;
char *eltName;
@@ -1039,6 +1134,8 @@ FSNormalizeAbsolutePath(interp, pathPtr)
}
}
if (nplen > 0) {
+ ClientData clientData = NULL;
+
retVal = Tcl_FSJoinPath(split, nplen);
/*
* Now we have an absolute path, with no '..', '.' sequences,
@@ -1052,13 +1149,16 @@ FSNormalizeAbsolutePath(interp, pathPtr)
* other criteria for normalizing a path.
*/
Tcl_IncrRefCount(retVal);
- TclNormalizeToUniquePath(interp, retVal, 0);
+ TclFSNormalizeToUniquePath(interp, retVal, 0, &clientData);
/*
* Since we know it is a normalized path, we can
- * actually convert this object into an FsPath for
+ * actually convert this object into an "path" object for
* greater efficiency
*/
- SetFsPathFromAbsoluteNormalized(interp, retVal);
+ TclFSMakePathFromNormalized(interp, retVal, clientData);
+ if (clientDataPtr != NULL) {
+ *clientDataPtr = clientData;
+ }
} else {
/* Init to an empty string */
retVal = Tcl_NewStringObj("",0);
@@ -1083,7 +1183,7 @@ FSNormalizeAbsolutePath(interp, pathPtr)
/*
*---------------------------------------------------------------------------
*
- * TclNormalizeToUniquePath --
+ * TclFSNormalizeToUniquePath --
*
* Description:
* Takes a path specification containing no ../, ./ sequences,
@@ -1113,14 +1213,17 @@ FSNormalizeAbsolutePath(interp, pathPtr)
* after the separator).
*---------------------------------------------------------------------------
*/
-static int
-TclNormalizeToUniquePath(interp, pathPtr, startAt)
+int
+TclFSNormalizeToUniquePath(interp, pathPtr, startAt, clientDataPtr)
Tcl_Interp *interp;
Tcl_Obj *pathPtr;
int startAt;
+ ClientData *clientDataPtr;
{
FilesystemRecord *fsRecPtr;
-
+ /* Ignore this variable */
+ (void)clientDataPtr;
+
/*
* Call each of the "normalise path" functions in succession. This is
* a special case, in which if we have a native filesystem handler,
@@ -1374,7 +1477,7 @@ Tcl_FSEvalFile(interp, pathPtr)
Tcl_Channel chan;
Tcl_Obj *objPtr;
- if (Tcl_FSGetTranslatedPath(interp, pathPtr) == NULL) {
+ if (Tcl_FSGetNormalizedPath(interp, pathPtr) == NULL) {
return TCL_ERROR;
}
@@ -1757,39 +1860,48 @@ Tcl_FSOpenFileChannel(interp, pathPtr, modeString, permissions)
{
Tcl_Filesystem *fsPtr;
#ifdef USE_OBSOLETE_FS_HOOKS
- OpenFileChannelProc *openFileChannelProcPtr;
Tcl_Channel retVal = NULL;
- char *path;
-#endif /* USE_OBSOLETE_FS_HOOKS */
- Tcl_Obj *transPtr = Tcl_FSGetTranslatedPath(interp, pathPtr);
- if (transPtr == NULL) {
- return NULL;
- }
-#ifdef USE_OBSOLETE_FS_HOOKS
- if (transPtr == NULL) {
- path = NULL;
- } else {
- path = Tcl_GetString(transPtr);
- }
/*
- * Call each of the "Tcl_OpenFileChannel" function in succession.
+ * Call each of the "Tcl_OpenFileChannel" functions in succession.
* A non-NULL return value indicates the particular function has
* succeeded.
*/
Tcl_MutexLock(&obsoleteFsHookMutex);
- openFileChannelProcPtr = openFileChannelProcList;
- while ((retVal == NULL) && (openFileChannelProcPtr != NULL)) {
- retVal = (*openFileChannelProcPtr->proc)(interp, path,
- modeString, permissions);
- openFileChannelProcPtr = openFileChannelProcPtr->nextPtr;
+ if (openFileChannelProcList != NULL) {
+ OpenFileChannelProc *openFileChannelProcPtr;
+ char *path;
+ Tcl_Obj *transPtr = Tcl_FSGetTranslatedPath(interp, pathPtr);
+
+ if (transPtr == NULL) {
+ path = NULL;
+ } else {
+ path = Tcl_GetString(transPtr);
+ }
+
+ openFileChannelProcPtr = openFileChannelProcList;
+
+ while ((retVal == NULL) && (openFileChannelProcPtr != NULL)) {
+ retVal = (*openFileChannelProcPtr->proc)(interp, path,
+ modeString, permissions);
+ openFileChannelProcPtr = openFileChannelProcPtr->nextPtr;
+ }
}
Tcl_MutexUnlock(&obsoleteFsHookMutex);
if (retVal != NULL) {
return retVal;
}
#endif /* USE_OBSOLETE_FS_HOOKS */
+
+ /*
+ * We need this just to ensure we return the correct error messages
+ * under some circumstances.
+ */
+ if (Tcl_FSGetNormalizedPath(interp, pathPtr) == NULL) {
+ return NULL;
+ }
+
fsPtr = Tcl_FSGetFileSystemForPath(pathPtr);
if (fsPtr != NULL) {
Tcl_FSOpenFileChannelProc *proc = fsPtr->openFileChannelProc;
@@ -1831,371 +1943,6 @@ Tcl_FSOpenFileChannel(interp, pathPtr, modeString, permissions)
/*
*----------------------------------------------------------------------
*
- * Tcl_FSMatchInDirectory --
- *
- * This routine is used by the globbing code to search a directory
- * for all files which match a given pattern. The appropriate
- * function for the filesystem to which pathPtr belongs will be
- * called. If pathPtr does not belong to any filesystem and if it
- * is NULL or the empty string, then we assume the pattern is to be
- * matched in the current working directory. To avoid each
- * filesystem's Tcl_FSMatchInDirectoryProc having to deal with this
- * issue, we create a pathPtr on the fly (equal to the cwd), and
- * then remove it from the results returned. This makes filesystems
- * easy to write, since they can assume the pathPtr passed to them
- * is an ordinary path. In fact this means we could remove such
- * special case handling from Tcl's native filesystems.
- *
- * If 'pattern' is NULL, then pathPtr is assumed to be a fully
- * specified path of a single file/directory which must be
- * checked for existence and correct type.
- *
- * Results:
- *
- * The return value is a standard Tcl result indicating whether an
- * error occurred in globbing. Error messages are placed in
- * interp, but good results are placed in the resultPtr given.
- *
- * Recursive searches, e.g.
- *
- * glob -dir $dir -join * pkgIndex.tcl
- *
- * which must recurse through each directory matching '*' are
- * handled internally by Tcl, by passing specific flags in a
- * modified 'types' parameter. This means the actual filesystem
- * only ever sees patterns which match in a single directory.
- *
- * Side effects:
- * The interpreter may have an error message inserted into it.
- *
- *----------------------------------------------------------------------
- */
-
-int
-Tcl_FSMatchInDirectory(interp, result, pathPtr, pattern, types)
- Tcl_Interp *interp; /* Interpreter to receive error messages. */
- Tcl_Obj *result; /* List object to receive results. */
- Tcl_Obj *pathPtr; /* Contains path to directory to search. */
- CONST char *pattern; /* Pattern to match against. */
- Tcl_GlobTypeData *types; /* Object containing list of acceptable types.
- * May be NULL. In particular the directory
- * flag is very important. */
-{
- Tcl_Filesystem *fsPtr = Tcl_FSGetFileSystemForPath(pathPtr);
- if (fsPtr != NULL) {
- Tcl_FSMatchInDirectoryProc *proc = fsPtr->matchInDirectoryProc;
- if (proc != NULL) {
- return (*proc)(interp, result, pathPtr, pattern, types);
- }
- } else {
- Tcl_Obj* cwd;
- int ret = -1;
- if (pathPtr != NULL) {
- int len;
- Tcl_GetStringFromObj(pathPtr,&len);
- if (len != 0) {
- /*
- * We have no idea how to match files in a directory
- * which belongs to no known filesystem
- */
- Tcl_SetErrno(ENOENT);
- return -1;
- }
- }
- /*
- * We have an empty or NULL path. This is defined to mean we
- * must search for files within the current 'cwd'. We
- * therefore use that, but then since the proc we call will
- * return results which include the cwd we must then trim it
- * off the front of each path in the result. We choose to deal
- * with this here (in the generic code), since if we don't,
- * every single filesystem's implementation of
- * Tcl_FSMatchInDirectory will have to deal with it for us.
- */
- cwd = Tcl_FSGetCwd(NULL);
- if (cwd == NULL) {
- if (interp != NULL) {
- Tcl_SetResult(interp, "glob couldn't determine "
- "the current working directory", TCL_STATIC);
- }
- return TCL_ERROR;
- }
- fsPtr = Tcl_FSGetFileSystemForPath(cwd);
- if (fsPtr != NULL) {
- Tcl_FSMatchInDirectoryProc *proc = fsPtr->matchInDirectoryProc;
- if (proc != NULL) {
- int cwdLen;
- char *cwdStr;
- Tcl_Obj* tmpResultPtr = Tcl_NewListObj(0, NULL);
- Tcl_IncrRefCount(tmpResultPtr);
- /*
- * We know the cwd is a normalised object which does
- * not end in a directory delimiter, unless the cwd
- * is the name of a volume, in which case it will
- * end in a delimiter! We handle this situation here.
- * A better test than the '!= sep' might be to simply
- * check if 'cwd' is a root volume.
- *
- * Note that if we get this wrong, we will strip off
- * either too much or too little below, leading to
- * wrong answers returned by glob.
- */
- cwdStr = Tcl_GetStringFromObj(cwd, &cwdLen);
- /*
- * Should we perhaps use 'Tcl_FSPathSeparator'?
- * But then what about the Windows special case?
- * Perhaps we should just check if cwd is a root
- * volume.
- */
- switch (tclPlatform) {
- case TCL_PLATFORM_UNIX:
- if (cwdStr[cwdLen-1] != '/') {
- cwdLen++;
- }
- break;
- case TCL_PLATFORM_WINDOWS:
- if (cwdStr[cwdLen-1] != '/'
- && cwdStr[cwdLen-1] != '\\') {
- cwdLen++;
- }
- break;
- case TCL_PLATFORM_MAC:
- if (cwdStr[cwdLen-1] != ':') {
- cwdLen++;
- }
- break;
- }
- ret = (*proc)(interp, tmpResultPtr, cwd, pattern, types);
- if (ret == TCL_OK) {
- int resLength;
-
- ret = Tcl_ListObjLength(interp, tmpResultPtr, &resLength);
- if (ret == TCL_OK) {
- int i;
-
- for (i = 0; i < resLength; i++) {
- Tcl_Obj *cutElt, *elt;
- char *eltStr;
- int eltLen;
-
- Tcl_ListObjIndex(interp, tmpResultPtr, i, &elt);
- if (elt->typePtr == &tclFsPathType) {
- FsPath* fsPathPtr = (FsPath*)
- elt->internalRep.otherValuePtr;
- if (fsPathPtr->flags != 0
- && fsPathPtr->cwdPtr == cwd) {
- Tcl_ListObjAppendElement(interp, result,
- MakeFsPathFromRelative(interp,
- fsPathPtr->normPathPtr, cwd));
- continue;
- }
- }
- eltStr = Tcl_GetStringFromObj(elt, &eltLen);
- cutElt = Tcl_NewStringObj(eltStr + cwdLen,
- eltLen - cwdLen);
- Tcl_ListObjAppendElement(interp, result, cutElt);
- }
- }
- }
- Tcl_DecrRefCount(tmpResultPtr);
- }
- }
- Tcl_DecrRefCount(cwd);
- return ret;
- }
- Tcl_SetErrno(ENOENT);
- return -1;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * Tcl_FSGetCwd --
- *
- * This function replaces the library version of getcwd().
- *
- * Most VFS's will *not* implement a 'cwdProc'. Tcl now maintains
- * its own record (in a Tcl_Obj) of the cwd, and an attempt
- * is made to synchronise this with the cwd's containing filesystem,
- * if that filesystem provides a cwdProc (e.g. the native filesystem).
- *
- * Note that if Tcl's cwd is not in the native filesystem, then of
- * course Tcl's cwd and the native cwd are different: extensions
- * should therefore ensure they only access the cwd through this
- * function to avoid confusion.
- *
- * If a global cwdPathPtr already exists, it is returned, subject
- * to a synchronisation attempt in that cwdPathPtr's fs.
- * Otherwise, the chain of functions that have been "inserted"
- * into the filesystem will be called in succession until either a
- * value other than NULL is returned, or the entire list is
- * visited.
- *
- * Results:
- * The result is a pointer to a Tcl_Obj specifying the current
- * directory, or NULL if the current directory could not be
- * determined. If NULL is returned, an error message is left in the
- * interp's result.
- *
- * The result already has its refCount incremented for the caller.
- * When it is no longer needed, that refCount should be decremented.
- * This is needed for thread-safety purposes, to allow multiple
- * threads to access this and related functions, while ensuring the
- * results are always valid.
- *
- * Of course it is probably a bad idea for multiple threads to
- * be *setting* the cwd anyway, but we can at least try to
- * help the case of multiple reads with occasional sets.
- *
- * Side effects:
- * Various objects may be freed and allocated.
- *
- *----------------------------------------------------------------------
- */
-
-Tcl_Obj*
-Tcl_FSGetCwd(interp)
- Tcl_Interp *interp;
-{
- Tcl_Obj *cwdToReturn;
-
- if (FsCwdPointerEquals(NULL)) {
- FilesystemRecord *fsRecPtr;
- Tcl_Obj *retVal = NULL;
-
- /*
- * We've never been called before, try to find a cwd. Call
- * each of the "Tcl_GetCwd" function in succession. A non-NULL
- * return value indicates the particular function has
- * succeeded.
- */
-
- fsRecPtr = FsGetIterator();
- while ((retVal == NULL) && (fsRecPtr != NULL)) {
- Tcl_FSGetCwdProc *proc = fsRecPtr->fsPtr->getCwdProc;
- if (proc != NULL) {
- retVal = (*proc)(interp);
- }
- fsRecPtr = fsRecPtr->nextPtr;
- }
- FsReleaseIterator();
- /*
- * Now the 'cwd' may NOT be normalized, at least on some
- * platforms. For the sake of efficiency, we want a completely
- * normalized cwd at all times.
- *
- * Finally, if retVal is NULL, we do not have a cwd, which
- * could be problematic.
- */
- if (retVal != NULL) {
- Tcl_Obj *norm = FSNormalizeAbsolutePath(interp, retVal);
- if (norm != NULL) {
- /*
- * We found a cwd, which is now in our global storage.
- * We must make a copy. Norm already has a refCount of
- * 1.
- *
- * Threading issue: note that multiple threads at system
- * startup could in principle call this procedure
- * simultaneously. They will therefore each set the
- * cwdPathPtr independently. That behaviour is a bit
- * peculiar, but should be fine. Once we have a cwd,
- * we'll always be in the 'else' branch below which
- * is simpler.
- */
- Tcl_MutexLock(&cwdMutex);
- /* Just in case the pointer has been set by another
- * thread between now and the test above */
- if (cwdPathPtr != NULL) {
- Tcl_DecrRefCount(cwdPathPtr);
- }
- cwdPathPtr = norm;
- Tcl_MutexUnlock(&cwdMutex);
- }
- Tcl_DecrRefCount(retVal);
- }
- } else {
- /*
- * We already have a cwd cached, but we want to give the
- * filesystem it is in a chance to check whether that cwd
- * has changed, or is perhaps no longer accessible. This
- * allows an error to be thrown if, say, the permissions on
- * that directory have changed.
- */
- Tcl_Filesystem *fsPtr = Tcl_FSGetFileSystemForPath(cwdPathPtr);
- /*
- * If the filesystem couldn't be found, or if no cwd function
- * exists for this filesystem, then we simply assume the cached
- * cwd is ok. If we do call a cwd, we must watch for errors
- * (if the cwd returns NULL). This ensures that, say, on Unix
- * if the permissions of the cwd change, 'pwd' does actually
- * throw the correct error in Tcl. (This is tested for in the
- * test suite on unix).
- */
- if (fsPtr != NULL) {
- Tcl_FSGetCwdProc *proc = fsPtr->getCwdProc;
- if (proc != NULL) {
- Tcl_Obj *retVal = (*proc)(interp);
- if (retVal != NULL) {
- Tcl_Obj *norm = FSNormalizeAbsolutePath(interp, retVal);
- /*
- * Check whether cwd has changed from the value
- * previously stored in cwdPathPtr. Really 'norm'
- * shouldn't be null, but we are careful.
- */
- if (norm == NULL) {
- /* Do nothing */
- } else if (Tcl_FSEqualPaths(cwdPathPtr, norm)) {
- /*
- * If the paths were equal, we can be more
- * efficient and retain the old path object
- * which will probably already be shared. In
- * this case we can simply free the normalized
- * path we just calculated.
- */
- Tcl_DecrRefCount(norm);
- } else {
- /* The cwd has in fact changed, so we must
- * lock down the cwdMutex to modify. */
- Tcl_MutexLock(&cwdMutex);
- Tcl_DecrRefCount(cwdPathPtr);
- cwdPathPtr = norm;
- Tcl_MutexUnlock(&cwdMutex);
- }
- Tcl_DecrRefCount(retVal);
- } else {
- /* The 'cwd' function returned an error, so we
- * reset the cwd after locking down the mutex. */
- Tcl_MutexLock(&cwdMutex);
- Tcl_DecrRefCount(cwdPathPtr);
- cwdPathPtr = NULL;
- Tcl_MutexUnlock(&cwdMutex);
- }
- }
- }
- }
-
- /*
- * The paths all eventually fall through to here. Note that
- * we use a bunch of separate mutex locks throughout this
- * code to help prevent deadlocks between threads. Really
- * the only weirdness will arise if multiple threads are setting
- * and reading the cwd, and that behaviour is always going to be
- * a little suspect.
- */
- Tcl_MutexLock(&cwdMutex);
- cwdToReturn = cwdPathPtr;
- if (cwdToReturn != NULL) {
- Tcl_IncrRefCount(cwdToReturn);
- }
- Tcl_MutexUnlock(&cwdMutex);
-
- return (cwdToReturn);
-}
-
-/*
- *----------------------------------------------------------------------
- *
* Tcl_FSUtime --
*
* This procedure replaces the library version of utime.
@@ -2442,6 +2189,192 @@ Tcl_FSFileAttrsSet(interp, index, pathPtr, objPtr)
/*
*----------------------------------------------------------------------
*
+ * Tcl_FSGetCwd --
+ *
+ * This function replaces the library version of getcwd().
+ *
+ * Most VFS's will *not* implement a 'cwdProc'. Tcl now maintains
+ * its own record (in a Tcl_Obj) of the cwd, and an attempt
+ * is made to synchronise this with the cwd's containing filesystem,
+ * if that filesystem provides a cwdProc (e.g. the native filesystem).
+ *
+ * Note that if Tcl's cwd is not in the native filesystem, then of
+ * course Tcl's cwd and the native cwd are different: extensions
+ * should therefore ensure they only access the cwd through this
+ * function to avoid confusion.
+ *
+ * If a global cwdPathPtr already exists, it is returned, subject
+ * to a synchronisation attempt in that cwdPathPtr's fs.
+ * Otherwise, the chain of functions that have been "inserted"
+ * into the filesystem will be called in succession until either a
+ * value other than NULL is returned, or the entire list is
+ * visited.
+ *
+ * Results:
+ * The result is a pointer to a Tcl_Obj specifying the current
+ * directory, or NULL if the current directory could not be
+ * determined. If NULL is returned, an error message is left in the
+ * interp's result.
+ *
+ * The result already has its refCount incremented for the caller.
+ * When it is no longer needed, that refCount should be decremented.
+ * This is needed for thread-safety purposes, to allow multiple
+ * threads to access this and related functions, while ensuring the
+ * results are always valid.
+ *
+ * Of course it is probably a bad idea for multiple threads to
+ * be *setting* the cwd anyway, but we can at least try to
+ * help the case of multiple reads with occasional sets.
+ *
+ * Side effects:
+ * Various objects may be freed and allocated.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_Obj*
+Tcl_FSGetCwd(interp)
+ Tcl_Interp *interp;
+{
+ Tcl_Obj *cwdToReturn;
+
+ if (TclFSCwdPointerEquals(NULL)) {
+ FilesystemRecord *fsRecPtr;
+ Tcl_Obj *retVal = NULL;
+
+ /*
+ * We've never been called before, try to find a cwd. Call
+ * each of the "Tcl_GetCwd" function in succession. A non-NULL
+ * return value indicates the particular function has
+ * succeeded.
+ */
+
+ fsRecPtr = FsGetIterator();
+ while ((retVal == NULL) && (fsRecPtr != NULL)) {
+ Tcl_FSGetCwdProc *proc = fsRecPtr->fsPtr->getCwdProc;
+ if (proc != NULL) {
+ retVal = (*proc)(interp);
+ }
+ fsRecPtr = fsRecPtr->nextPtr;
+ }
+ FsReleaseIterator();
+ /*
+ * Now the 'cwd' may NOT be normalized, at least on some
+ * platforms. For the sake of efficiency, we want a completely
+ * normalized cwd at all times.
+ *
+ * Finally, if retVal is NULL, we do not have a cwd, which
+ * could be problematic.
+ */
+ if (retVal != NULL) {
+ Tcl_Obj *norm = TclFSNormalizeAbsolutePath(interp, retVal, NULL);
+ if (norm != NULL) {
+ /*
+ * We found a cwd, which is now in our global storage.
+ * We must make a copy. Norm already has a refCount of
+ * 1.
+ *
+ * Threading issue: note that multiple threads at system
+ * startup could in principle call this procedure
+ * simultaneously. They will therefore each set the
+ * cwdPathPtr independently. That behaviour is a bit
+ * peculiar, but should be fine. Once we have a cwd,
+ * we'll always be in the 'else' branch below which
+ * is simpler.
+ */
+ Tcl_MutexLock(&cwdMutex);
+ /* Just in case the pointer has been set by another
+ * thread between now and the test above */
+ if (cwdPathPtr != NULL) {
+ Tcl_DecrRefCount(cwdPathPtr);
+ }
+ cwdPathPtr = norm;
+ Tcl_MutexUnlock(&cwdMutex);
+ }
+ Tcl_DecrRefCount(retVal);
+ }
+ } else {
+ /*
+ * We already have a cwd cached, but we want to give the
+ * filesystem it is in a chance to check whether that cwd
+ * has changed, or is perhaps no longer accessible. This
+ * allows an error to be thrown if, say, the permissions on
+ * that directory have changed.
+ */
+ Tcl_Filesystem *fsPtr = Tcl_FSGetFileSystemForPath(cwdPathPtr);
+ /*
+ * If the filesystem couldn't be found, or if no cwd function
+ * exists for this filesystem, then we simply assume the cached
+ * cwd is ok. If we do call a cwd, we must watch for errors
+ * (if the cwd returns NULL). This ensures that, say, on Unix
+ * if the permissions of the cwd change, 'pwd' does actually
+ * throw the correct error in Tcl. (This is tested for in the
+ * test suite on unix).
+ */
+ if (fsPtr != NULL) {
+ Tcl_FSGetCwdProc *proc = fsPtr->getCwdProc;
+ if (proc != NULL) {
+ Tcl_Obj *retVal = (*proc)(interp);
+ if (retVal != NULL) {
+ Tcl_Obj *norm = TclFSNormalizeAbsolutePath(interp, retVal, NULL);
+ /*
+ * Check whether cwd has changed from the value
+ * previously stored in cwdPathPtr. Really 'norm'
+ * shouldn't be null, but we are careful.
+ */
+ if (norm == NULL) {
+ /* Do nothing */
+ } else if (Tcl_FSEqualPaths(cwdPathPtr, norm)) {
+ /*
+ * If the paths were equal, we can be more
+ * efficient and retain the old path object
+ * which will probably already be shared. In
+ * this case we can simply free the normalized
+ * path we just calculated.
+ */
+ Tcl_DecrRefCount(norm);
+ } else {
+ /* The cwd has in fact changed, so we must
+ * lock down the cwdMutex to modify. */
+ Tcl_MutexLock(&cwdMutex);
+ Tcl_DecrRefCount(cwdPathPtr);
+ cwdPathPtr = norm;
+ Tcl_MutexUnlock(&cwdMutex);
+ }
+ Tcl_DecrRefCount(retVal);
+ } else {
+ /* The 'cwd' function returned an error, so we
+ * reset the cwd after locking down the mutex. */
+ Tcl_MutexLock(&cwdMutex);
+ Tcl_DecrRefCount(cwdPathPtr);
+ cwdPathPtr = NULL;
+ Tcl_MutexUnlock(&cwdMutex);
+ }
+ }
+ }
+ }
+
+ /*
+ * The paths all eventually fall through to here. Note that
+ * we use a bunch of separate mutex locks throughout this
+ * code to help prevent deadlocks between threads. Really
+ * the only weirdness will arise if multiple threads are setting
+ * and reading the cwd, and that behaviour is always going to be
+ * a little suspect.
+ */
+ Tcl_MutexLock(&cwdMutex);
+ cwdToReturn = cwdPathPtr;
+ if (cwdToReturn != NULL) {
+ Tcl_IncrRefCount(cwdToReturn);
+ }
+ Tcl_MutexUnlock(&cwdMutex);
+
+ return (cwdToReturn);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
* Tcl_FSChdir --
*
* This function replaces the library version of chdir().
@@ -3004,79 +2937,6 @@ Tcl_FSListVolumes(void)
}
/*
- *----------------------------------------------------------------------
- *
- * Tcl_FSGetPathType --
- *
- * Determines whether a given path is relative to the current
- * directory, relative to the current volume, or absolute.
- *
- * Results:
- * Returns one of TCL_PATH_ABSOLUTE, TCL_PATH_RELATIVE, or
- * TCL_PATH_VOLUME_RELATIVE.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-Tcl_PathType
-Tcl_FSGetPathType(pathObjPtr)
- Tcl_Obj *pathObjPtr;
-{
- return FSGetPathType(pathObjPtr, NULL, NULL);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * FSGetPathType --
- *
- * Determines whether a given path is relative to the current
- * directory, relative to the current volume, or absolute. If the
- * caller wishes to know which filesystem claimed the path (in the
- * case for which the path is absolute), then a reference to a
- * filesystem pointer can be passed in (but passing NULL is
- * acceptable).
- *
- * Results:
- * Returns one of TCL_PATH_ABSOLUTE, TCL_PATH_RELATIVE, or
- * TCL_PATH_VOLUME_RELATIVE. The filesystem reference will
- * be set if and only if it is non-NULL and the function's
- * return value is TCL_PATH_ABSOLUTE.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-static Tcl_PathType
-FSGetPathType(pathObjPtr, filesystemPtrPtr, driveNameLengthPtr)
- Tcl_Obj *pathObjPtr;
- Tcl_Filesystem **filesystemPtrPtr;
- int *driveNameLengthPtr;
-{
- if (Tcl_FSConvertToPathType(NULL, pathObjPtr) != TCL_OK) {
- return GetPathType(pathObjPtr, filesystemPtrPtr,
- driveNameLengthPtr, NULL);
- } else {
- FsPath *fsPathPtr = (FsPath*) pathObjPtr->internalRep.otherValuePtr;
- if (fsPathPtr->cwdPtr != NULL) {
- if (fsPathPtr->flags == 0) {
- return TCL_PATH_RELATIVE;
- }
- return FSGetPathType(fsPathPtr->cwdPtr, filesystemPtrPtr,
- driveNameLengthPtr);
- } else {
- return GetPathType(pathObjPtr, filesystemPtrPtr,
- driveNameLengthPtr, NULL);
- }
- }
-}
-
-/*
*---------------------------------------------------------------------------
*
* Tcl_FSSplitPath --
@@ -3173,188 +3033,31 @@ Tcl_FSSplitPath(pathPtr, lenPtr)
return result;
}
-/*
- *---------------------------------------------------------------------------
- *
- * Tcl_FSJoinPath --
- *
- * This function takes the given Tcl_Obj, which should be a valid
- * list, and returns the path object given by considering the
- * first 'elements' elements as valid path segments. If elements < 0,
- * we use the entire list.
- *
- * Results:
- * Returns object with refCount of zero, (or if non-zero, it has
- * references elsewhere in Tcl). Either way, the caller must
- * increment its refCount before use.
- *
- * Side effects:
- * None.
- *
- *---------------------------------------------------------------------------
- */
+/* Simple helper function */
Tcl_Obj*
-Tcl_FSJoinPath(listObj, elements)
- Tcl_Obj *listObj;
- int elements;
+TclFSInternalToNormalized(fromFilesystem, clientData, fsRecPtrPtr, epochPtr)
+ Tcl_Filesystem *fromFilesystem;
+ ClientData clientData;
+ FilesystemRecord **fsRecPtrPtr;
+ int *epochPtr;
{
- Tcl_Obj *res;
- int i;
- Tcl_Filesystem *fsPtr = NULL;
-
- if (elements < 0) {
- if (Tcl_ListObjLength(NULL, listObj, &elements) != TCL_OK) {
- return NULL;
- }
- } else {
- /* Just make sure it is a valid list */
- int listTest;
- if (Tcl_ListObjLength(NULL, listObj, &listTest) != TCL_OK) {
- return NULL;
- }
- /*
- * Correct this if it is too large, otherwise we will
- * waste our time joining null elements to the path
- */
- if (elements > listTest) {
- elements = listTest;
- }
- }
-
- if (elements == 2) {
- /*
- * This is a special case where we can be much more
- * efficient
- */
- Tcl_Obj *base;
-
- Tcl_ListObjIndex(NULL, listObj, 0, &base);
- /*
- * There is only any value in doing this if the first object is
- * of path type, otherwise we'll never actually get any
- * efficiency benefit elsewhere in the code (from re-using the
- * normalized representation of the base object).
- */
- if (base->typePtr == &tclFsPathType
- && !(base->bytes != NULL && base->bytes[0] == '\0')) {
- Tcl_Obj *tail;
- Tcl_PathType type;
- Tcl_ListObjIndex(NULL, listObj, 1, &tail);
- type = GetPathType(tail, NULL, NULL, NULL);
- if (type == TCL_PATH_RELATIVE) {
- CONST char *str;
- int len;
- str = Tcl_GetStringFromObj(tail,&len);
- if (len == 0) {
- /*
- * This happens if we try to handle the root volume
- * '/'. There's no need to return a special path
- * object, when the base itself is just fine!
- */
- return base;
- }
- if (str[0] != '.') {
- return TclNewFSPathObj(base, str, len);
- }
- /*
- * Otherwise we don't have an easy join, and
- * we must let the more general code below handle
- * things
- */
- } else {
- return tail;
- }
+ FilesystemRecord *fsRecPtr = FsGetIterator();
+ while (fsRecPtr != NULL) {
+ if (fsRecPtr->fsPtr == fromFilesystem) {
+ *epochPtr = theFilesystemEpoch;
+ *fsRecPtrPtr = fsRecPtr;
+ break;
}
+ fsRecPtr = fsRecPtr->nextPtr;
}
+ FsReleaseIterator();
- res = Tcl_NewObj();
-
- for (i = 0; i < elements; i++) {
- Tcl_Obj *elt;
- int driveNameLength;
- Tcl_PathType type;
- char *strElt;
- int strEltLen;
- int length;
- char *ptr;
- Tcl_Obj *driveName = NULL;
-
- Tcl_ListObjIndex(NULL, listObj, i, &elt);
- strElt = Tcl_GetStringFromObj(elt, &strEltLen);
- type = GetPathType(elt, &fsPtr, &driveNameLength, &driveName);
- if (type != TCL_PATH_RELATIVE) {
- /* Zero out the current result */
- Tcl_DecrRefCount(res);
- if (driveName != NULL) {
- res = Tcl_DuplicateObj(driveName);
- Tcl_DecrRefCount(driveName);
- } else {
- res = Tcl_NewStringObj(strElt, driveNameLength);
- }
- strElt += driveNameLength;
- }
-
- ptr = Tcl_GetStringFromObj(res, &length);
-
- /*
- * Strip off any './' before a tilde, unless this is the
- * beginning of the path.
- */
- if (length > 0 && strEltLen > 0) {
- if ((strElt[0] == '.') && (strElt[1] == '/')
- && (strElt[2] == '~')) {
- strElt += 2;
- }
- }
-
- /*
- * A NULL value for fsPtr at this stage basically means
- * we're trying to join a relative path onto something
- * which is also relative (or empty). There's nothing
- * particularly wrong with that.
- */
- if (*strElt == '\0') continue;
-
- if (fsPtr == &tclNativeFilesystem || fsPtr == NULL) {
- TclpNativeJoinPath(res, strElt);
- } else {
- char separator = '/';
- int needsSep = 0;
-
- if (fsPtr->filesystemSeparatorProc != NULL) {
- Tcl_Obj *sep = (*fsPtr->filesystemSeparatorProc)(res);
- if (sep != NULL) {
- separator = Tcl_GetString(sep)[0];
- }
- }
-
- if (length > 0 && ptr[length -1] != '/') {
- Tcl_AppendToObj(res, &separator, 1);
- length++;
- }
- Tcl_SetObjLength(res, length + (int) strlen(strElt));
-
- ptr = Tcl_GetString(res) + length;
- for (; *strElt != '\0'; strElt++) {
- if (*strElt == separator) {
- while (strElt[1] == separator) {
- strElt++;
- }
- if (strElt[1] != '\0') {
- if (needsSep) {
- *ptr++ = separator;
- }
- }
- } else {
- *ptr++ = *strElt;
- needsSep = 1;
- }
- }
- length = ptr - Tcl_GetString(res);
- Tcl_SetObjLength(res, length);
- }
+ if ((fsRecPtr != NULL)
+ && (fromFilesystem->internalToNormalizedProc != NULL)) {
+ return (*fromFilesystem->internalToNormalizedProc)(clientData);
+ } else {
+ return NULL;
}
- return res;
}
/*
@@ -3376,7 +3079,7 @@ Tcl_FSJoinPath(listObj, elements)
*----------------------------------------------------------------------
*/
-static Tcl_PathType
+Tcl_PathType
GetPathType(pathObjPtr, filesystemPtrPtr, driveNameLengthPtr, driveNameRef)
Tcl_Obj *pathObjPtr;
Tcl_Filesystem **filesystemPtrPtr;
@@ -3812,6 +3515,1062 @@ Tcl_FSRemoveDirectory(pathPtr, recursive, errorPtr)
/*
*---------------------------------------------------------------------------
*
+ * Tcl_FSGetFileSystemForPath --
+ *
+ * This function determines which filesystem to use for a
+ * particular path object, and returns the filesystem which
+ * accepts this file. If no filesystem will accept this object
+ * as a valid file path, then NULL is returned.
+ *
+ * Results:
+.* NULL or a filesystem which will accept this path.
+ *
+ * Side effects:
+ * The object may be converted to a path type.
+ *
+ *---------------------------------------------------------------------------
+ */
+
+Tcl_Filesystem*
+Tcl_FSGetFileSystemForPath(pathObjPtr)
+ Tcl_Obj* pathObjPtr;
+{
+ FilesystemRecord *fsRecPtr;
+ Tcl_Filesystem* retVal = NULL;
+
+ /*
+ * If the object has a refCount of zero, we reject it. This
+ * is to avoid possible segfaults or nondeterministic memory
+ * leaks (i.e. the user doesn't know if they should decrement
+ * the ref count on return or not).
+ */
+
+ if (pathObjPtr->refCount == 0) {
+ panic("Tcl_FSGetFileSystemForPath called with object with refCount == 0");
+ return NULL;
+ }
+
+ /*
+ * Check if the filesystem has changed in some way since
+ * this object's internal representation was calculated.
+ */
+ if (TclFSEnsureEpochOk(pathObjPtr, theFilesystemEpoch,
+ &retVal) != TCL_OK) {
+ return NULL;
+ }
+
+ /*
+ * Call each of the "pathInFilesystem" functions in succession. A
+ * non-return value of -1 indicates the particular function has
+ * succeeded.
+ */
+
+ fsRecPtr = FsGetIterator();
+ while ((retVal == NULL) && (fsRecPtr != NULL)) {
+ Tcl_FSPathInFilesystemProc *proc = fsRecPtr->fsPtr->pathInFilesystemProc;
+ if (proc != NULL) {
+ ClientData clientData = NULL;
+ int ret = (*proc)(pathObjPtr, &clientData);
+ if (ret != -1) {
+ /*
+ * We assume the type of pathObjPtr hasn't been changed
+ * by the above call to the pathInFilesystemProc.
+ */
+ TclFSSetPathDetails(pathObjPtr, fsRecPtr, clientData,
+ theFilesystemEpoch);
+ retVal = fsRecPtr->fsPtr;
+ }
+ }
+ fsRecPtr = fsRecPtr->nextPtr;
+ }
+ FsReleaseIterator();
+
+ return retVal;
+}
+
+/*
+ *---------------------------------------------------------------------------
+ *
+ * Tcl_FSGetNativePath --
+ *
+ * This function is for use by the Win/Unix/MacOS native filesystems,
+ * so that they can easily retrieve the native (char* or TCHAR*)
+ * representation of a path. Other filesystems will probably
+ * want to implement similar functions. They basically act as a
+ * safety net around Tcl_FSGetInternalRep. Normally your file-
+ * system procedures will always be called with path objects
+ * already converted to the correct filesystem, but if for
+ * some reason they are called directly (i.e. by procedures
+ * not in this file), then one cannot necessarily guarantee that
+ * the path object pointer is from the correct filesystem.
+ *
+ * Note: in the future it might be desireable to have separate
+ * versions of this function with different signatures, for
+ * example Tcl_FSGetNativeMacPath, Tcl_FSGetNativeUnixPath etc.
+ * Right now, since native paths are all string based, we use just
+ * one function. On MacOS we could possibly use an FSSpec or
+ * FSRef as the native representation.
+ *
+ * Results:
+ * NULL or a valid native path.
+ *
+ * Side effects:
+ * See Tcl_FSGetInternalRep.
+ *
+ *---------------------------------------------------------------------------
+ */
+
+CONST char *
+Tcl_FSGetNativePath(pathObjPtr)
+ Tcl_Obj *pathObjPtr;
+{
+ return (CONST char *)Tcl_FSGetInternalRep(pathObjPtr, &tclNativeFilesystem);
+}
+
+/*
+ *---------------------------------------------------------------------------
+ *
+ * NativeCreateNativeRep --
+ *
+ * Create a native representation for the given path.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * None.
+ *
+ *---------------------------------------------------------------------------
+ */
+static ClientData
+NativeCreateNativeRep(pathObjPtr)
+ Tcl_Obj* pathObjPtr;
+{
+ char *nativePathPtr;
+ Tcl_DString ds;
+ Tcl_Obj* validPathObjPtr;
+ int len;
+ char *str;
+
+ /* Make sure the normalized path is set */
+ validPathObjPtr = Tcl_FSGetNormalizedPath(NULL, pathObjPtr);
+
+ str = Tcl_GetStringFromObj(validPathObjPtr, &len);
+#ifdef __WIN32__
+ Tcl_WinUtfToTChar(str, len, &ds);
+ if (tclWinProcs->useWide) {
+ len = Tcl_DStringLength(&ds) + sizeof(WCHAR);
+ } else {
+ len = Tcl_DStringLength(&ds) + sizeof(char);
+ }
+#else
+ Tcl_UtfToExternalDString(NULL, str, len, &ds);
+ len = Tcl_DStringLength(&ds) + sizeof(char);
+#endif
+ nativePathPtr = ckalloc((unsigned) len);
+ memcpy((VOID*)nativePathPtr, (VOID*)Tcl_DStringValue(&ds), (size_t) len);
+
+ Tcl_DStringFree(&ds);
+ return (ClientData)nativePathPtr;
+}
+
+/*
+ *---------------------------------------------------------------------------
+ *
+ * TclpNativeToNormalized --
+ *
+ * Convert native format to a normalized path object, with refCount
+ * of zero.
+ *
+ * Results:
+ * A valid normalized path.
+ *
+ * Side effects:
+ * None.
+ *
+ *---------------------------------------------------------------------------
+ */
+Tcl_Obj*
+TclpNativeToNormalized(clientData)
+ ClientData clientData;
+{
+ Tcl_DString ds;
+ Tcl_Obj *objPtr;
+ CONST char *copy;
+ int len;
+
+#ifdef __WIN32__
+ Tcl_WinTCharToUtf((CONST char*)clientData, -1, &ds);
+#else
+ Tcl_ExternalToUtfDString(NULL, (CONST char*)clientData, -1, &ds);
+#endif
+
+ copy = Tcl_DStringValue(&ds);
+ len = Tcl_DStringLength(&ds);
+
+#ifdef __WIN32__
+ /*
+ * Certain native path representations on Windows have this special
+ * prefix to indicate that they are to be treated specially. For
+ * example extremely long paths, or symlinks
+ */
+ if (*copy == '\\') {
+ if (0 == strncmp(copy,"\\??\\",4)) {
+ copy += 4;
+ len -= 4;
+ } else if (0 == strncmp(copy,"\\\\?\\",4)) {
+ copy += 4;
+ len -= 4;
+ }
+ }
+#endif
+
+ objPtr = Tcl_NewStringObj(copy,len);
+ Tcl_DStringFree(&ds);
+
+ return objPtr;
+}
+
+
+/*
+ *---------------------------------------------------------------------------
+ *
+ * NativeDupInternalRep --
+ *
+ * Duplicate the native representation.
+ *
+ * Results:
+ * The copied native representation, or NULL if it is not possible
+ * to copy the representation.
+ *
+ * Side effects:
+ * None.
+ *
+ *---------------------------------------------------------------------------
+ */
+ClientData
+NativeDupInternalRep(clientData)
+ ClientData clientData;
+{
+ ClientData copy;
+ size_t len;
+
+ if (clientData == NULL) {
+ return NULL;
+ }
+
+#ifdef __WIN32__
+ if (tclWinProcs->useWide) {
+ /* unicode representation when running on NT/2K/XP */
+ len = sizeof(WCHAR) + (wcslen((CONST WCHAR*)clientData) * sizeof(WCHAR));
+ } else {
+ /* ansi representation when running on 95/98/ME */
+ len = sizeof(char) + (strlen((CONST char*)clientData) * sizeof(char));
+ }
+#else
+ /* ansi representation when running on Unix/MacOS */
+ len = sizeof(char) + (strlen((CONST char*)clientData) * sizeof(char));
+#endif
+
+ copy = (ClientData) ckalloc(len);
+ memcpy((VOID*)copy, (VOID*)clientData, len);
+ return copy;
+}
+
+/*
+ *---------------------------------------------------------------------------
+ *
+ * NativeFreeInternalRep --
+ *
+ * Free a native internal representation, which will be non-NULL.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Memory is released.
+ *
+ *---------------------------------------------------------------------------
+ */
+static void
+NativeFreeInternalRep(clientData)
+ ClientData clientData;
+{
+ ckfree((char*)clientData);
+}
+
+/*
+ *---------------------------------------------------------------------------
+ *
+ * Tcl_FSFileSystemInfo --
+ *
+ * This function returns a list of two elements. The first
+ * element is the name of the filesystem (e.g. "native" or "vfs"),
+ * and the second is the particular type of the given path within
+ * that filesystem.
+ *
+ * Results:
+ * A list of two elements.
+ *
+ * Side effects:
+ * The object may be converted to a path type.
+ *
+ *---------------------------------------------------------------------------
+ */
+Tcl_Obj*
+Tcl_FSFileSystemInfo(pathObjPtr)
+ Tcl_Obj* pathObjPtr;
+{
+ Tcl_Obj *resPtr;
+ Tcl_FSFilesystemPathTypeProc *proc;
+ Tcl_Filesystem *fsPtr = Tcl_FSGetFileSystemForPath(pathObjPtr);
+
+ if (fsPtr == NULL) {
+ return NULL;
+ }
+
+ resPtr = Tcl_NewListObj(0,NULL);
+
+ Tcl_ListObjAppendElement(NULL, resPtr,
+ Tcl_NewStringObj(fsPtr->typeName,-1));
+
+ proc = fsPtr->filesystemPathTypeProc;
+ if (proc != NULL) {
+ Tcl_Obj *typePtr = (*proc)(pathObjPtr);
+ if (typePtr != NULL) {
+ Tcl_ListObjAppendElement(NULL, resPtr, typePtr);
+ }
+ }
+
+ return resPtr;
+}
+
+/*
+ *---------------------------------------------------------------------------
+ *
+ * Tcl_FSPathSeparator --
+ *
+ * This function returns the separator to be used for a given
+ * path. The object returned should have a refCount of zero
+ *
+ * Results:
+ * A Tcl object, with a refCount of zero. If the caller
+ * needs to retain a reference to the object, it should
+ * call Tcl_IncrRefCount.
+ *
+ * Side effects:
+ * The path object may be converted to a path type.
+ *
+ *---------------------------------------------------------------------------
+ */
+Tcl_Obj*
+Tcl_FSPathSeparator(pathObjPtr)
+ Tcl_Obj* pathObjPtr;
+{
+ Tcl_Filesystem *fsPtr = Tcl_FSGetFileSystemForPath(pathObjPtr);
+
+ if (fsPtr == NULL) {
+ return NULL;
+ }
+ if (fsPtr->filesystemSeparatorProc != NULL) {
+ return (*fsPtr->filesystemSeparatorProc)(pathObjPtr);
+ }
+
+ return NULL;
+}
+
+/*
+ *---------------------------------------------------------------------------
+ *
+ * NativeFilesystemSeparator --
+ *
+ * This function is part of the native filesystem support, and
+ * returns the separator for the given path.
+ *
+ * Results:
+ * String object containing the separator character.
+ *
+ * Side effects:
+ * None.
+ *
+ *---------------------------------------------------------------------------
+ */
+static Tcl_Obj*
+NativeFilesystemSeparator(pathObjPtr)
+ Tcl_Obj* pathObjPtr;
+{
+ char *separator = NULL; /* lint */
+ switch (tclPlatform) {
+ case TCL_PLATFORM_UNIX:
+ separator = "/";
+ break;
+ case TCL_PLATFORM_WINDOWS:
+ separator = "\\";
+ break;
+ case TCL_PLATFORM_MAC:
+ separator = ":";
+ break;
+ }
+ return Tcl_NewStringObj(separator,1);
+}
+
+/* Everything from here on is contained in this obsolete ifdef */
+#ifdef USE_OBSOLETE_FS_HOOKS
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclStatInsertProc --
+ *
+ * Insert the passed procedure pointer at the head of the list of
+ * functions which are used during a call to 'TclStat(...)'. The
+ * passed function should behave exactly like 'TclStat' when called
+ * during that time (see 'TclStat(...)' for more information).
+ * The function will be added even if it already in the list.
+ *
+ * Results:
+ * Normally TCL_OK; TCL_ERROR if memory for a new node in the list
+ * could not be allocated.
+ *
+ * Side effects:
+ * Memory allocated and modifies the link list for 'TclStat'
+ * functions.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclStatInsertProc (proc)
+ TclStatProc_ *proc;
+{
+ int retVal = TCL_ERROR;
+
+ if (proc != NULL) {
+ StatProc *newStatProcPtr;
+
+ newStatProcPtr = (StatProc *)ckalloc(sizeof(StatProc));
+
+ if (newStatProcPtr != NULL) {
+ newStatProcPtr->proc = proc;
+ Tcl_MutexLock(&obsoleteFsHookMutex);
+ newStatProcPtr->nextPtr = statProcList;
+ statProcList = newStatProcPtr;
+ Tcl_MutexUnlock(&obsoleteFsHookMutex);
+
+ retVal = TCL_OK;
+ }
+ }
+
+ return (retVal);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclStatDeleteProc --
+ *
+ * Removed the passed function pointer from the list of 'TclStat'
+ * functions. Ensures that the built-in stat function is not
+ * removvable.
+ *
+ * Results:
+ * TCL_OK if the procedure pointer was successfully removed,
+ * TCL_ERROR otherwise.
+ *
+ * Side effects:
+ * Memory is deallocated and the respective list updated.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclStatDeleteProc (proc)
+ TclStatProc_ *proc;
+{
+ int retVal = TCL_ERROR;
+ StatProc *tmpStatProcPtr;
+ StatProc *prevStatProcPtr = NULL;
+
+ Tcl_MutexLock(&obsoleteFsHookMutex);
+ tmpStatProcPtr = statProcList;
+ /*
+ * Traverse the 'statProcList' looking for the particular node
+ * whose 'proc' member matches 'proc' and remove that one from
+ * the list. Ensure that the "default" node cannot be removed.
+ */
+
+ while ((retVal == TCL_ERROR) && (tmpStatProcPtr != NULL)) {
+ if (tmpStatProcPtr->proc == proc) {
+ if (prevStatProcPtr == NULL) {
+ statProcList = tmpStatProcPtr->nextPtr;
+ } else {
+ prevStatProcPtr->nextPtr = tmpStatProcPtr->nextPtr;
+ }
+
+ ckfree((char *)tmpStatProcPtr);
+
+ retVal = TCL_OK;
+ } else {
+ prevStatProcPtr = tmpStatProcPtr;
+ tmpStatProcPtr = tmpStatProcPtr->nextPtr;
+ }
+ }
+
+ Tcl_MutexUnlock(&obsoleteFsHookMutex);
+ return (retVal);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclAccessInsertProc --
+ *
+ * Insert the passed procedure pointer at the head of the list of
+ * functions which are used during a call to 'TclAccess(...)'.
+ * The passed function should behave exactly like 'TclAccess' when
+ * called during that time (see 'TclAccess(...)' for more
+ * information). The function will be added even if it already in
+ * the list.
+ *
+ * Results:
+ * Normally TCL_OK; TCL_ERROR if memory for a new node in the list
+ * could not be allocated.
+ *
+ * Side effects:
+ * Memory allocated and modifies the link list for 'TclAccess'
+ * functions.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclAccessInsertProc(proc)
+ TclAccessProc_ *proc;
+{
+ int retVal = TCL_ERROR;
+
+ if (proc != NULL) {
+ AccessProc *newAccessProcPtr;
+
+ newAccessProcPtr = (AccessProc *)ckalloc(sizeof(AccessProc));
+
+ if (newAccessProcPtr != NULL) {
+ newAccessProcPtr->proc = proc;
+ Tcl_MutexLock(&obsoleteFsHookMutex);
+ newAccessProcPtr->nextPtr = accessProcList;
+ accessProcList = newAccessProcPtr;
+ Tcl_MutexUnlock(&obsoleteFsHookMutex);
+
+ retVal = TCL_OK;
+ }
+ }
+
+ return (retVal);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclAccessDeleteProc --
+ *
+ * Removed the passed function pointer from the list of 'TclAccess'
+ * functions. Ensures that the built-in access function is not
+ * removvable.
+ *
+ * Results:
+ * TCL_OK if the procedure pointer was successfully removed,
+ * TCL_ERROR otherwise.
+ *
+ * Side effects:
+ * Memory is deallocated and the respective list updated.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclAccessDeleteProc(proc)
+ TclAccessProc_ *proc;
+{
+ int retVal = TCL_ERROR;
+ AccessProc *tmpAccessProcPtr;
+ AccessProc *prevAccessProcPtr = NULL;
+
+ /*
+ * Traverse the 'accessProcList' looking for the particular node
+ * whose 'proc' member matches 'proc' and remove that one from
+ * the list. Ensure that the "default" node cannot be removed.
+ */
+
+ Tcl_MutexLock(&obsoleteFsHookMutex);
+ tmpAccessProcPtr = accessProcList;
+ while ((retVal == TCL_ERROR) && (tmpAccessProcPtr != NULL)) {
+ if (tmpAccessProcPtr->proc == proc) {
+ if (prevAccessProcPtr == NULL) {
+ accessProcList = tmpAccessProcPtr->nextPtr;
+ } else {
+ prevAccessProcPtr->nextPtr = tmpAccessProcPtr->nextPtr;
+ }
+
+ ckfree((char *)tmpAccessProcPtr);
+
+ retVal = TCL_OK;
+ } else {
+ prevAccessProcPtr = tmpAccessProcPtr;
+ tmpAccessProcPtr = tmpAccessProcPtr->nextPtr;
+ }
+ }
+ Tcl_MutexUnlock(&obsoleteFsHookMutex);
+
+ return (retVal);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclOpenFileChannelInsertProc --
+ *
+ * Insert the passed procedure pointer at the head of the list of
+ * functions which are used during a call to
+ * 'Tcl_OpenFileChannel(...)'. The passed function should behave
+ * exactly like 'Tcl_OpenFileChannel' when called during that time
+ * (see 'Tcl_OpenFileChannel(...)' for more information). The
+ * function will be added even if it already in the list.
+ *
+ * Results:
+ * Normally TCL_OK; TCL_ERROR if memory for a new node in the list
+ * could not be allocated.
+ *
+ * Side effects:
+ * Memory allocated and modifies the link list for
+ * 'Tcl_OpenFileChannel' functions.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclOpenFileChannelInsertProc(proc)
+ TclOpenFileChannelProc_ *proc;
+{
+ int retVal = TCL_ERROR;
+
+ if (proc != NULL) {
+ OpenFileChannelProc *newOpenFileChannelProcPtr;
+
+ newOpenFileChannelProcPtr =
+ (OpenFileChannelProc *)ckalloc(sizeof(OpenFileChannelProc));
+
+ if (newOpenFileChannelProcPtr != NULL) {
+ newOpenFileChannelProcPtr->proc = proc;
+ Tcl_MutexLock(&obsoleteFsHookMutex);
+ newOpenFileChannelProcPtr->nextPtr = openFileChannelProcList;
+ openFileChannelProcList = newOpenFileChannelProcPtr;
+ Tcl_MutexUnlock(&obsoleteFsHookMutex);
+
+ retVal = TCL_OK;
+ }
+ }
+
+ return (retVal);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclOpenFileChannelDeleteProc --
+ *
+ * Removed the passed function pointer from the list of
+ * 'Tcl_OpenFileChannel' functions. Ensures that the built-in
+ * open file channel function is not removable.
+ *
+ * Results:
+ * TCL_OK if the procedure pointer was successfully removed,
+ * TCL_ERROR otherwise.
+ *
+ * Side effects:
+ * Memory is deallocated and the respective list updated.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclOpenFileChannelDeleteProc(proc)
+ TclOpenFileChannelProc_ *proc;
+{
+ int retVal = TCL_ERROR;
+ OpenFileChannelProc *tmpOpenFileChannelProcPtr = openFileChannelProcList;
+ OpenFileChannelProc *prevOpenFileChannelProcPtr = NULL;
+
+ /*
+ * Traverse the 'openFileChannelProcList' looking for the particular
+ * node whose 'proc' member matches 'proc' and remove that one from
+ * the list.
+ */
+
+ Tcl_MutexLock(&obsoleteFsHookMutex);
+ tmpOpenFileChannelProcPtr = openFileChannelProcList;
+ while ((retVal == TCL_ERROR) &&
+ (tmpOpenFileChannelProcPtr != NULL)) {
+ if (tmpOpenFileChannelProcPtr->proc == proc) {
+ if (prevOpenFileChannelProcPtr == NULL) {
+ openFileChannelProcList = tmpOpenFileChannelProcPtr->nextPtr;
+ } else {
+ prevOpenFileChannelProcPtr->nextPtr =
+ tmpOpenFileChannelProcPtr->nextPtr;
+ }
+
+ ckfree((char *)tmpOpenFileChannelProcPtr);
+
+ retVal = TCL_OK;
+ } else {
+ prevOpenFileChannelProcPtr = tmpOpenFileChannelProcPtr;
+ tmpOpenFileChannelProcPtr = tmpOpenFileChannelProcPtr->nextPtr;
+ }
+ }
+ Tcl_MutexUnlock(&obsoleteFsHookMutex);
+
+ return (retVal);
+}
+#endif /* USE_OBSOLETE_FS_HOOKS */
+
+
+/*
+ * Prototypes for procedures defined later in this file.
+ */
+
+static void DupFsPathInternalRep _ANSI_ARGS_((Tcl_Obj *srcPtr,
+ Tcl_Obj *copyPtr));
+static void FreeFsPathInternalRep _ANSI_ARGS_((Tcl_Obj *listPtr));
+static void UpdateStringOfFsPath _ANSI_ARGS_((Tcl_Obj *objPtr));
+static int SetFsPathFromAny _ANSI_ARGS_((Tcl_Interp *interp,
+ Tcl_Obj *objPtr));
+static int FindSplitPos _ANSI_ARGS_((char *path, char *separator));
+
+
+
+/*
+ * Define the 'path' object type, which Tcl uses to represent
+ * file paths internally.
+ */
+Tcl_ObjType tclFsPathType = {
+ "path", /* name */
+ FreeFsPathInternalRep, /* freeIntRepProc */
+ DupFsPathInternalRep, /* dupIntRepProc */
+ UpdateStringOfFsPath, /* updateStringProc */
+ SetFsPathFromAny /* setFromAnyProc */
+};
+
+/*
+ * struct FsPath --
+ *
+ * Internal representation of a Tcl_Obj of "path" type. This
+ * can be used to represent relative or absolute paths, and has
+ * certain optimisations when used to represent paths which are
+ * already normalized and absolute.
+ *
+ * Note that 'normPathPtr' can be a circular reference to the
+ * container Tcl_Obj of this FsPath.
+ */
+typedef struct FsPath {
+ Tcl_Obj *translatedPathPtr; /* Name without any ~user sequences.
+ * If this is NULL, then this is a
+ * pure normalized, absolute path
+ * object, in which the parent Tcl_Obj's
+ * string rep is already both translated
+ * and normalized. */
+ Tcl_Obj *normPathPtr; /* Normalized absolute path, without
+ * ., .. or ~user sequences. If the
+ * Tcl_Obj containing
+ * this FsPath is already normalized,
+ * this may be a circular reference back
+ * to the container. If that is NOT the
+ * case, we have a refCount on the object. */
+ Tcl_Obj *cwdPtr; /* If null, path is absolute, else
+ * this points to the cwd object used
+ * for this path. We have a refCount
+ * on the object. */
+ int flags; /* Flags to describe interpretation */
+ ClientData nativePathPtr; /* Native representation of this path,
+ * which is filesystem dependent. */
+ int filesystemEpoch; /* Used to ensure the path representation
+ * was generated during the correct
+ * filesystem epoch. The epoch changes
+ * when filesystem-mounts are changed. */
+ struct FilesystemRecord *fsRecPtr;
+ /* Pointer to the filesystem record
+ * entry to use for this path. */
+} FsPath;
+
+/*
+ * Define some macros to give us convenient access to path-object
+ * specific fields.
+ */
+#define PATHOBJ(objPtr) (objPtr->internalRep.otherValuePtr)
+#define PATHFLAGS(objPtr) \
+ (((FsPath*)(objPtr->internalRep.otherValuePtr))->flags)
+
+#define TCLPATH_APPENDED 1
+#define TCLPATH_RELATIVE 2
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tcl_FSGetPathType --
+ *
+ * Determines whether a given path is relative to the current
+ * directory, relative to the current volume, or absolute.
+ *
+ * Results:
+ * Returns one of TCL_PATH_ABSOLUTE, TCL_PATH_RELATIVE, or
+ * TCL_PATH_VOLUME_RELATIVE.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_PathType
+Tcl_FSGetPathType(pathObjPtr)
+ Tcl_Obj *pathObjPtr;
+{
+ return FSGetPathType(pathObjPtr, NULL, NULL);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * FSGetPathType --
+ *
+ * Determines whether a given path is relative to the current
+ * directory, relative to the current volume, or absolute. If the
+ * caller wishes to know which filesystem claimed the path (in the
+ * case for which the path is absolute), then a reference to a
+ * filesystem pointer can be passed in (but passing NULL is
+ * acceptable).
+ *
+ * Results:
+ * Returns one of TCL_PATH_ABSOLUTE, TCL_PATH_RELATIVE, or
+ * TCL_PATH_VOLUME_RELATIVE. The filesystem reference will
+ * be set if and only if it is non-NULL and the function's
+ * return value is TCL_PATH_ABSOLUTE.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_PathType
+FSGetPathType(pathObjPtr, filesystemPtrPtr, driveNameLengthPtr)
+ Tcl_Obj *pathObjPtr;
+ Tcl_Filesystem **filesystemPtrPtr;
+ int *driveNameLengthPtr;
+{
+ if (Tcl_FSConvertToPathType(NULL, pathObjPtr) != TCL_OK) {
+ return GetPathType(pathObjPtr, filesystemPtrPtr,
+ driveNameLengthPtr, NULL);
+ } else {
+ FsPath *fsPathPtr = (FsPath*) PATHOBJ(pathObjPtr);
+ if (fsPathPtr->cwdPtr != NULL) {
+ if (PATHFLAGS(pathObjPtr) == 0) {
+ return TCL_PATH_RELATIVE;
+ }
+ return FSGetPathType(fsPathPtr->cwdPtr, filesystemPtrPtr,
+ driveNameLengthPtr);
+ } else {
+ return GetPathType(pathObjPtr, filesystemPtrPtr,
+ driveNameLengthPtr, NULL);
+ }
+ }
+}
+
+/*
+ *---------------------------------------------------------------------------
+ *
+ * Tcl_FSJoinPath --
+ *
+ * This function takes the given Tcl_Obj, which should be a valid
+ * list, and returns the path object given by considering the
+ * first 'elements' elements as valid path segments. If elements < 0,
+ * we use the entire list.
+ *
+ * Results:
+ * Returns object with refCount of zero, (or if non-zero, it has
+ * references elsewhere in Tcl). Either way, the caller must
+ * increment its refCount before use.
+ *
+ * Side effects:
+ * None.
+ *
+ *---------------------------------------------------------------------------
+ */
+Tcl_Obj*
+Tcl_FSJoinPath(listObj, elements)
+ Tcl_Obj *listObj;
+ int elements;
+{
+ Tcl_Obj *res;
+ int i;
+ Tcl_Filesystem *fsPtr = NULL;
+
+ if (elements < 0) {
+ if (Tcl_ListObjLength(NULL, listObj, &elements) != TCL_OK) {
+ return NULL;
+ }
+ } else {
+ /* Just make sure it is a valid list */
+ int listTest;
+ if (Tcl_ListObjLength(NULL, listObj, &listTest) != TCL_OK) {
+ return NULL;
+ }
+ /*
+ * Correct this if it is too large, otherwise we will
+ * waste our time joining null elements to the path
+ */
+ if (elements > listTest) {
+ elements = listTest;
+ }
+ }
+
+ if (elements == 2) {
+ /*
+ * This is a special case where we can be much more
+ * efficient
+ */
+ Tcl_Obj *base;
+
+ Tcl_ListObjIndex(NULL, listObj, 0, &base);
+ /*
+ * There is only any value in doing this if the first object is
+ * of path type, otherwise we'll never actually get any
+ * efficiency benefit elsewhere in the code (from re-using the
+ * normalized representation of the base object).
+ */
+ if (base->typePtr == &tclFsPathType
+ && !(base->bytes != NULL && base->bytes[0] == '\0')) {
+ Tcl_Obj *tail;
+ Tcl_PathType type;
+ Tcl_ListObjIndex(NULL, listObj, 1, &tail);
+ type = GetPathType(tail, NULL, NULL, NULL);
+ if (type == TCL_PATH_RELATIVE) {
+ CONST char *str;
+ int len;
+ str = Tcl_GetStringFromObj(tail,&len);
+ if (len == 0) {
+ /*
+ * This happens if we try to handle the root volume
+ * '/'. There's no need to return a special path
+ * object, when the base itself is just fine!
+ */
+ return base;
+ }
+ if (str[0] != '.') {
+ return TclNewFSPathObj(base, str, len);
+ }
+ /*
+ * Otherwise we don't have an easy join, and
+ * we must let the more general code below handle
+ * things
+ */
+ } else {
+ return tail;
+ }
+ }
+ }
+
+ res = Tcl_NewObj();
+
+ for (i = 0; i < elements; i++) {
+ Tcl_Obj *elt;
+ int driveNameLength;
+ Tcl_PathType type;
+ char *strElt;
+ int strEltLen;
+ int length;
+ char *ptr;
+ Tcl_Obj *driveName = NULL;
+
+ Tcl_ListObjIndex(NULL, listObj, i, &elt);
+ strElt = Tcl_GetStringFromObj(elt, &strEltLen);
+ type = GetPathType(elt, &fsPtr, &driveNameLength, &driveName);
+ if (type != TCL_PATH_RELATIVE) {
+ /* Zero out the current result */
+ Tcl_DecrRefCount(res);
+ if (driveName != NULL) {
+ res = Tcl_DuplicateObj(driveName);
+ Tcl_DecrRefCount(driveName);
+ } else {
+ res = Tcl_NewStringObj(strElt, driveNameLength);
+ }
+ strElt += driveNameLength;
+ }
+
+ ptr = Tcl_GetStringFromObj(res, &length);
+
+ /*
+ * Strip off any './' before a tilde, unless this is the
+ * beginning of the path.
+ */
+ if (length > 0 && strEltLen > 0) {
+ if ((strElt[0] == '.') && (strElt[1] == '/')
+ && (strElt[2] == '~')) {
+ strElt += 2;
+ }
+ }
+
+ /*
+ * A NULL value for fsPtr at this stage basically means
+ * we're trying to join a relative path onto something
+ * which is also relative (or empty). There's nothing
+ * particularly wrong with that.
+ */
+ if (*strElt == '\0') continue;
+
+ if (fsPtr == &tclNativeFilesystem || fsPtr == NULL) {
+ TclpNativeJoinPath(res, strElt);
+ } else {
+ char separator = '/';
+ int needsSep = 0;
+
+ if (fsPtr->filesystemSeparatorProc != NULL) {
+ Tcl_Obj *sep = (*fsPtr->filesystemSeparatorProc)(res);
+ if (sep != NULL) {
+ separator = Tcl_GetString(sep)[0];
+ }
+ }
+
+ if (length > 0 && ptr[length -1] != '/') {
+ Tcl_AppendToObj(res, &separator, 1);
+ length++;
+ }
+ Tcl_SetObjLength(res, length + (int) strlen(strElt));
+
+ ptr = Tcl_GetString(res) + length;
+ for (; *strElt != '\0'; strElt++) {
+ if (*strElt == separator) {
+ while (strElt[1] == separator) {
+ strElt++;
+ }
+ if (strElt[1] != '\0') {
+ if (needsSep) {
+ *ptr++ = separator;
+ }
+ }
+ } else {
+ *ptr++ = *strElt;
+ needsSep = 1;
+ }
+ }
+ length = ptr - Tcl_GetString(res);
+ Tcl_SetObjLength(res, length);
+ }
+ }
+ return res;
+}
+
+/*
+ *---------------------------------------------------------------------------
+ *
* Tcl_FSConvertToPathType --
*
* This function tries to convert the given Tcl_Obj to a valid
@@ -3836,7 +4595,7 @@ Tcl_FSConvertToPathType(interp, objPtr)
Tcl_Interp *interp; /* Interpreter in which to store error
* message (if necessary). */
Tcl_Obj *objPtr; /* Object to convert to a valid, current
- * path type. */
+ * path type. */
{
/*
* While it is bad practice to examine an object's type directly,
@@ -3848,7 +4607,7 @@ Tcl_FSConvertToPathType(interp, objPtr)
* If the cwd has changed, we must recompute the path.
*/
if (objPtr->typePtr == &tclFsPathType) {
- FsPath *fsPathPtr = (FsPath*) objPtr->internalRep.otherValuePtr;
+ FsPath *fsPathPtr = (FsPath*) PATHOBJ(objPtr);
if (fsPathPtr->filesystemEpoch != theFilesystemEpoch) {
if (objPtr->bytes == NULL) {
UpdateStringOfFsPath(objPtr);
@@ -3865,7 +4624,7 @@ Tcl_FSConvertToPathType(interp, objPtr)
if (fsPathPtr->cwdPtr == NULL) {
return TCL_OK;
} else {
- if (FsCwdPointerEquals(fsPathPtr->cwdPtr)) {
+ if (TclFSCwdPointerEquals(fsPathPtr->cwdPtr)) {
return TCL_OK;
} else {
if (objPtr->bytes == NULL) {
@@ -3880,7 +4639,6 @@ Tcl_FSConvertToPathType(interp, objPtr)
return Tcl_ConvertToType(interp, objPtr, &tclFsPathType);
}
}
-
/*
* Helper function for SetFsPathFromAny. Returns position of first
@@ -3896,10 +4654,10 @@ FindSplitPos(path, separator)
case TCL_PLATFORM_UNIX:
case TCL_PLATFORM_MAC:
while (path[count] != 0) {
- if (path[count] == *separator) {
- return count;
- }
- count++;
+ if (path[count] == *separator) {
+ return count;
+ }
+ count++;
}
break;
@@ -3918,82 +4676,6 @@ FindSplitPos(path, separator)
/*
*---------------------------------------------------------------------------
*
- * UpdateStringOfFsPath --
- *
- * Gives an object a valid string rep.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Memory may be allocated.
- *
- *---------------------------------------------------------------------------
- */
-
-static void
-UpdateStringOfFsPath(objPtr)
- register Tcl_Obj *objPtr; /* path obj with string rep to update. */
-{
- register FsPath* fsPathPtr =
- (FsPath*) objPtr->internalRep.otherValuePtr;
- CONST char *cwdStr;
- int cwdLen;
- Tcl_Obj *copy;
-
- if (fsPathPtr->flags == 0 || fsPathPtr->cwdPtr == NULL) {
- panic("Called UpdateStringOfFsPath with invalid object");
- }
-
- copy = Tcl_DuplicateObj(fsPathPtr->cwdPtr);
- Tcl_IncrRefCount(copy);
-
- cwdStr = Tcl_GetStringFromObj(copy, &cwdLen);
- /*
- * Should we perhaps use 'Tcl_FSPathSeparator'?
- * But then what about the Windows special case?
- * Perhaps we should just check if cwd is a root volume.
- * We should never get cwdLen == 0 in this code path.
- */
- switch (tclPlatform) {
- case TCL_PLATFORM_UNIX:
- if (cwdStr[cwdLen-1] != '/') {
- Tcl_AppendToObj(copy, "/", 1);
- cwdLen++;
- }
- break;
- case TCL_PLATFORM_WINDOWS:
- /*
- * We need the extra 'cwdLen != 2', and ':' checks because
- * a volume relative path doesn't get a '/'. For example
- * 'glob C:*cat*.exe' will return 'C:cat32.exe'
- */
- if (cwdStr[cwdLen-1] != '/'
- && cwdStr[cwdLen-1] != '\\') {
- if (cwdLen != 2 || cwdStr[1] != ':') {
- Tcl_AppendToObj(copy, "/", 1);
- cwdLen++;
- }
- }
- break;
- case TCL_PLATFORM_MAC:
- if (cwdStr[cwdLen-1] != ':') {
- Tcl_AppendToObj(copy, ":", 1);
- cwdLen++;
- }
- break;
- }
- Tcl_AppendObjToObj(copy, fsPathPtr->normPathPtr);
- objPtr->bytes = Tcl_GetStringFromObj(copy, &cwdLen);
- objPtr->length = cwdLen;
- copy->bytes = tclEmptyStringRep;
- copy->length = 0;
- Tcl_DecrRefCount(copy);
-}
-
-/*
- *---------------------------------------------------------------------------
- *
* TclNewFSPathObj --
*
* Creates a path object whose string representation is
@@ -4005,7 +4687,7 @@ UpdateStringOfFsPath(objPtr)
* 'len' may not be zero.
*
* Results:
- * The new Tcl object.
+ * The new Tcl object, with refCount zero.
*
* Side effects:
* Memory is allocated. 'dirPtr' gets an additional refCount.
@@ -4022,30 +4704,30 @@ TclNewFSPathObj(Tcl_Obj *dirPtr, CONST char *addStrRep, int len)
objPtr = Tcl_NewObj();
fsPathPtr = (FsPath*)ckalloc((unsigned)sizeof(FsPath));
- if (tclPlatform == TCL_PLATFORM_MAC) {
+ if (tclPlatform == TCL_PLATFORM_MAC) {
/*
- * Mac relative paths may begin with a directory separator ':'.
- * If present, we need to skip this ':' because we assume that
- * we can join dirPtr and addStrRep by concatenating them as
- * strings (and we ensure that dirPtr is terminated by a ':').
- */
- if (addStrRep[0] == ':') {
- addStrRep++;
- len--;
- }
- }
+ * Mac relative paths may begin with a directory separator ':'.
+ * If present, we need to skip this ':' because we assume that
+ * we can join dirPtr and addStrRep by concatenating them as
+ * strings (and we ensure that dirPtr is terminated by a ':').
+ */
+ if (addStrRep[0] == ':') {
+ addStrRep++;
+ len--;
+ }
+ }
/* Setup the path */
fsPathPtr->translatedPathPtr = NULL;
fsPathPtr->normPathPtr = Tcl_NewStringObj(addStrRep, len);
Tcl_IncrRefCount(fsPathPtr->normPathPtr);
fsPathPtr->cwdPtr = dirPtr;
Tcl_IncrRefCount(dirPtr);
- fsPathPtr->flags = TCLPATH_RELATIVE | TCLPATH_APPENDED;
fsPathPtr->nativePathPtr = NULL;
fsPathPtr->fsRecPtr = NULL;
fsPathPtr->filesystemEpoch = theFilesystemEpoch;
- objPtr->internalRep.otherValuePtr = (VOID *) fsPathPtr;
+ PATHOBJ(objPtr) = (VOID *) fsPathPtr;
+ PATHFLAGS(objPtr) = TCLPATH_RELATIVE | TCLPATH_APPENDED;
objPtr->typePtr = &tclFsPathType;
objPtr->bytes = NULL;
objPtr->length = 0;
@@ -4055,7 +4737,7 @@ TclNewFSPathObj(Tcl_Obj *dirPtr, CONST char *addStrRep, int len)
/*
*---------------------------------------------------------------------------
*
- * MakeFsPathFromRelative --
+ * TclFSMakePathRelative --
*
* Like SetFsPathFromAny, but assumes the given object is an
* absolute normalized path. Only for internal use.
@@ -4069,54 +4751,101 @@ TclNewFSPathObj(Tcl_Obj *dirPtr, CONST char *addStrRep, int len)
*---------------------------------------------------------------------------
*/
-static Tcl_Obj*
-MakeFsPathFromRelative(interp, objPtr, cwdPtr)
+Tcl_Obj*
+TclFSMakePathRelative(interp, objPtr, cwdPtr)
Tcl_Interp *interp; /* Used for error reporting if not NULL. */
- Tcl_Obj *objPtr; /* The object to convert. */
- Tcl_Obj *cwdPtr; /* The object to convert. */
+ Tcl_Obj *objPtr; /* The object we have. */
+ Tcl_Obj *cwdPtr; /* Make it relative to this. */
{
- FsPath *fsPathPtr;
-
- /* Free old representation */
- if (objPtr->typePtr != NULL) {
- if (objPtr->bytes == NULL) {
- if (objPtr->typePtr->updateStringProc == NULL) {
- if (interp != NULL) {
- Tcl_ResetResult(interp);
- Tcl_AppendResult(interp, "can't find object",
- "string representation", (char *) NULL);
+ int cwdLen, len;
+ CONST char *tempStr;
+
+ if (objPtr->typePtr == &tclFsPathType) {
+ FsPath* fsPathPtr = (FsPath*) PATHOBJ(objPtr);
+ if (PATHFLAGS(objPtr) != 0
+ && fsPathPtr->cwdPtr == cwdPtr) {
+ objPtr = fsPathPtr->normPathPtr;
+ /* Free old representation */
+ if (objPtr->typePtr != NULL) {
+ if (objPtr->bytes == NULL) {
+ if (objPtr->typePtr->updateStringProc == NULL) {
+ if (interp != NULL) {
+ Tcl_ResetResult(interp);
+ Tcl_AppendResult(interp, "can't find object",
+ "string representation", (char *) NULL);
+ }
+ return NULL;
+ }
+ objPtr->typePtr->updateStringProc(objPtr);
+ }
+ if ((objPtr->typePtr->freeIntRepProc) != NULL) {
+ (*objPtr->typePtr->freeIntRepProc)(objPtr);
}
- return NULL;
}
- objPtr->typePtr->updateStringProc(objPtr);
- }
- if ((objPtr->typePtr->freeIntRepProc) != NULL) {
- (*objPtr->typePtr->freeIntRepProc)(objPtr);
- }
- }
- fsPathPtr = (FsPath*)ckalloc((unsigned)sizeof(FsPath));
+ fsPathPtr = (FsPath*)ckalloc((unsigned)sizeof(FsPath));
- /* Circular reference, by design */
- fsPathPtr->translatedPathPtr = objPtr;
- fsPathPtr->normPathPtr = NULL;
- fsPathPtr->flags = 0;
- fsPathPtr->cwdPtr = cwdPtr;
- Tcl_IncrRefCount(cwdPtr);
- fsPathPtr->nativePathPtr = NULL;
- fsPathPtr->fsRecPtr = NULL;
- fsPathPtr->filesystemEpoch = theFilesystemEpoch;
+ /* Circular reference, by design */
+ fsPathPtr->translatedPathPtr = objPtr;
+ fsPathPtr->normPathPtr = NULL;
+ fsPathPtr->cwdPtr = cwdPtr;
+ Tcl_IncrRefCount(cwdPtr);
+ fsPathPtr->nativePathPtr = NULL;
+ fsPathPtr->fsRecPtr = NULL;
+ fsPathPtr->filesystemEpoch = theFilesystemEpoch;
- objPtr->internalRep.otherValuePtr = (VOID *) fsPathPtr;
- objPtr->typePtr = &tclFsPathType;
+ PATHOBJ(objPtr) = (VOID *) fsPathPtr;
+ PATHFLAGS(objPtr) = 0;
+ objPtr->typePtr = &tclFsPathType;
- return objPtr;
+ return objPtr;
+ }
+ }
+ /*
+ * We know the cwd is a normalised object which does
+ * not end in a directory delimiter, unless the cwd
+ * is the name of a volume, in which case it will
+ * end in a delimiter! We handle this situation here.
+ * A better test than the '!= sep' might be to simply
+ * check if 'cwd' is a root volume.
+ *
+ * Note that if we get this wrong, we will strip off
+ * either too much or too little below, leading to
+ * wrong answers returned by glob.
+ */
+ tempStr = Tcl_GetStringFromObj(cwdPtr, &cwdLen);
+ /*
+ * Should we perhaps use 'Tcl_FSPathSeparator'?
+ * But then what about the Windows special case?
+ * Perhaps we should just check if cwd is a root
+ * volume.
+ */
+ switch (tclPlatform) {
+ case TCL_PLATFORM_UNIX:
+ if (tempStr[cwdLen-1] != '/') {
+ cwdLen++;
+ }
+ break;
+ case TCL_PLATFORM_WINDOWS:
+ if (tempStr[cwdLen-1] != '/'
+ && tempStr[cwdLen-1] != '\\') {
+ cwdLen++;
+ }
+ break;
+ case TCL_PLATFORM_MAC:
+ if (tempStr[cwdLen-1] != ':') {
+ cwdLen++;
+ }
+ break;
+ }
+ tempStr = Tcl_GetStringFromObj(objPtr, &len);
+ return Tcl_NewStringObj(tempStr + cwdLen, len - cwdLen);
}
/*
*---------------------------------------------------------------------------
*
- * SetFsPathFromAbsoluteNormalized --
+ * TclFSMakePathFromNormalized --
*
* Like SetFsPathFromAny, but assumes the given object is an
* absolute normalized path. Only for internal use.
@@ -4130,15 +4859,17 @@ MakeFsPathFromRelative(interp, objPtr, cwdPtr)
*---------------------------------------------------------------------------
*/
-static int
-SetFsPathFromAbsoluteNormalized(interp, objPtr)
+int
+TclFSMakePathFromNormalized(interp, objPtr, nativeRep)
Tcl_Interp *interp; /* Used for error reporting if not NULL. */
Tcl_Obj *objPtr; /* The object to convert. */
+ ClientData nativeRep; /* The native rep for the object, if known
+ * else NULL. */
{
FsPath *fsPathPtr;
if (objPtr->typePtr == &tclFsPathType) {
- return TCL_OK;
+ return TCL_OK;
}
/* Free old representation */
@@ -4163,181 +4894,13 @@ SetFsPathFromAbsoluteNormalized(interp, objPtr)
/* It's a pure normalized absolute path */
fsPathPtr->translatedPathPtr = NULL;
fsPathPtr->normPathPtr = objPtr;
- fsPathPtr->flags = 0;
fsPathPtr->cwdPtr = NULL;
- fsPathPtr->nativePathPtr = NULL;
+ fsPathPtr->nativePathPtr = nativeRep;
fsPathPtr->fsRecPtr = NULL;
fsPathPtr->filesystemEpoch = theFilesystemEpoch;
- objPtr->internalRep.otherValuePtr = (VOID *) fsPathPtr;
- objPtr->typePtr = &tclFsPathType;
-
- return TCL_OK;
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * SetFsPathFromAny --
- *
- * This function tries to convert the given Tcl_Obj to a valid
- * Tcl path type.
- *
- * The filename may begin with "~" (to indicate current user's
- * home directory) or "~<user>" (to indicate any user's home
- * directory).
- *
- * Results:
- * Standard Tcl error code.
- *
- * Side effects:
- * The old representation may be freed, and new memory allocated.
- *
- *---------------------------------------------------------------------------
- */
-
-static int
-SetFsPathFromAny(interp, objPtr)
- Tcl_Interp *interp; /* Used for error reporting if not NULL. */
- Tcl_Obj *objPtr; /* The object to convert. */
-{
- int len;
- FsPath *fsPathPtr;
- Tcl_Obj *transPtr;
- char *name;
-
- if (objPtr->typePtr == &tclFsPathType) {
- return TCL_OK;
- }
-
- /*
- * First step is to translate the filename. This is similar to
- * Tcl_TranslateFilename, but shouldn't convert everything to
- * windows backslashes on that platform. The current
- * implementation of this piece is a slightly optimised version
- * of the various Tilde/Split/Join stuff to avoid multiple
- * split/join operations.
- *
- * We remove any trailing directory separator.
- *
- * However, the split/join routines are quite complex, and
- * one has to make sure not to break anything on Unix, Win
- * or MacOS (fCmd.test, fileName.test and cmdAH.test exercise
- * most of the code).
- */
- name = Tcl_GetStringFromObj(objPtr,&len);
-
- /*
- * Handle tilde substitutions, if needed.
- */
- if (name[0] == '~') {
- char *expandedUser;
- Tcl_DString temp;
- int split;
- char separator='/';
-
- if (tclPlatform==TCL_PLATFORM_MAC) {
- if (strchr(name, ':') != NULL) separator = ':';
- }
-
- split = FindSplitPos(name, &separator);
- if (split != len) {
- /* We have multiple pieces '~user/foo/bar...' */
- name[split] = '\0';
- }
- /* Do some tilde substitution */
- if (name[1] == '\0') {
- /* We have just '~' */
- CONST char *dir;
- Tcl_DString dirString;
- if (split != len) { name[split] = separator; }
-
- dir = TclGetEnv("HOME", &dirString);
- if (dir == NULL) {
- if (interp) {
- Tcl_ResetResult(interp);
- Tcl_AppendResult(interp, "couldn't find HOME environment ",
- "variable to expand path", (char *) NULL);
- }
- return TCL_ERROR;
- }
- Tcl_DStringInit(&temp);
- Tcl_JoinPath(1, &dir, &temp);
- Tcl_DStringFree(&dirString);
- } else {
- /* We have a user name '~user' */
- Tcl_DStringInit(&temp);
- if (TclpGetUserHome(name+1, &temp) == NULL) {
- if (interp != NULL) {
- Tcl_ResetResult(interp);
- Tcl_AppendResult(interp, "user \"", (name+1),
- "\" doesn't exist", (char *) NULL);
- }
- Tcl_DStringFree(&temp);
- if (split != len) { name[split] = separator; }
- return TCL_ERROR;
- }
- if (split != len) { name[split] = separator; }
- }
-
- expandedUser = Tcl_DStringValue(&temp);
- transPtr = Tcl_NewStringObj(expandedUser, Tcl_DStringLength(&temp));
-
- if (split != len) {
- /* Join up the tilde substitution with the rest */
- if (name[split+1] == separator) {
-
- /*
- * Somewhat tricky case like ~//foo/bar.
- * Make use of Split/Join machinery to get it right.
- * Assumes all paths beginning with ~ are part of the
- * native filesystem.
- */
-
- int objc;
- Tcl_Obj **objv;
- Tcl_Obj *parts = TclpNativeSplitPath(objPtr, NULL);
- Tcl_ListObjGetElements(NULL, parts, &objc, &objv);
- /* Skip '~'. It's replaced by its expansion */
- objc--; objv++;
- while (objc--) {
- TclpNativeJoinPath(transPtr, Tcl_GetString(*objv++));
- }
- Tcl_DecrRefCount(parts);
- } else {
- /* Simple case. "rest" is relative path. Just join it. */
- Tcl_Obj *rest = Tcl_NewStringObj(name+split+1,-1);
- transPtr = Tcl_FSJoinToPath(transPtr, 1, &rest);
- }
- }
- Tcl_DStringFree(&temp);
- } else {
- transPtr = Tcl_FSJoinToPath(objPtr,0,NULL);
- }
-
- /*
- * Now we have a translated filename in 'transPtr'. This will have
- * forward slashes on Windows, and will not contain any ~user
- * sequences.
- */
-
- fsPathPtr = (FsPath*)ckalloc((unsigned)sizeof(FsPath));
- fsPathPtr->translatedPathPtr = transPtr;
- Tcl_IncrRefCount(fsPathPtr->translatedPathPtr);
- fsPathPtr->normPathPtr = NULL;
- fsPathPtr->flags = 0;
- fsPathPtr->cwdPtr = NULL;
- fsPathPtr->nativePathPtr = NULL;
- fsPathPtr->fsRecPtr = NULL;
- fsPathPtr->filesystemEpoch = theFilesystemEpoch;
-
- /*
- * Free old representation before installing our new one.
- */
- if (objPtr->typePtr != NULL && objPtr->typePtr->freeIntRepProc != NULL) {
- (objPtr->typePtr->freeIntRepProc)(objPtr);
- }
- objPtr->internalRep.otherValuePtr = (VOID *) fsPathPtr;
+ PATHOBJ(objPtr) = (VOID *) fsPathPtr;
+ PATHFLAGS(objPtr) = 0;
objPtr->typePtr = &tclFsPathType;
return TCL_OK;
@@ -4376,25 +4939,15 @@ Tcl_FSNewNativePath(fromFilesystem, clientData)
{
Tcl_Obj *objPtr;
FsPath *fsPathPtr;
+
FilesystemRecord *fsFromPtr;
- Tcl_FSInternalToNormalizedProc *proc;
int epoch;
- fsFromPtr = GetFilesystemRecord(fromFilesystem, &epoch);
-
- if (fsFromPtr == NULL) {
- return NULL;
- }
-
- proc = fsFromPtr->fsPtr->internalToNormalizedProc;
+ objPtr = TclFSInternalToNormalized(fromFilesystem, clientData,
+ &fsFromPtr, &epoch);
- if (proc == NULL) {
- return NULL;
- }
-
- objPtr = (*proc)(clientData);
if (objPtr == NULL) {
- return NULL;
+ return NULL;
}
/*
@@ -4417,7 +4970,6 @@ Tcl_FSNewNativePath(fromFilesystem, clientData)
fsPathPtr->translatedPathPtr = NULL;
/* Circular reference, by design */
fsPathPtr->normPathPtr = objPtr;
- fsPathPtr->flags = 0;
fsPathPtr->cwdPtr = NULL;
fsPathPtr->nativePathPtr = clientData;
fsPathPtr->fsRecPtr = fsFromPtr;
@@ -4425,112 +4977,11 @@ Tcl_FSNewNativePath(fromFilesystem, clientData)
fsPathPtr->fsRecPtr->fileRefCount++;
fsPathPtr->filesystemEpoch = epoch;
- objPtr->internalRep.otherValuePtr = (VOID *) fsPathPtr;
+ PATHOBJ(objPtr) = (VOID *) fsPathPtr;
+ PATHFLAGS(objPtr) = 0;
objPtr->typePtr = &tclFsPathType;
return objPtr;
}
-
-static void
-FreeFsPathInternalRep(pathObjPtr)
- Tcl_Obj *pathObjPtr; /* Path object with internal rep to free. */
-{
- register FsPath* fsPathPtr =
- (FsPath*) pathObjPtr->internalRep.otherValuePtr;
-
- if (fsPathPtr->translatedPathPtr != NULL) {
- if (fsPathPtr->translatedPathPtr != pathObjPtr) {
- Tcl_DecrRefCount(fsPathPtr->translatedPathPtr);
- }
- }
- if (fsPathPtr->normPathPtr != NULL) {
- if (fsPathPtr->normPathPtr != pathObjPtr) {
- Tcl_DecrRefCount(fsPathPtr->normPathPtr);
- }
- fsPathPtr->normPathPtr = NULL;
- }
- if (fsPathPtr->cwdPtr != NULL) {
- Tcl_DecrRefCount(fsPathPtr->cwdPtr);
- }
- if (fsPathPtr->nativePathPtr != NULL) {
- if (fsPathPtr->fsRecPtr != NULL) {
- if (fsPathPtr->fsRecPtr->fsPtr->freeInternalRepProc != NULL) {
- (*fsPathPtr->fsRecPtr->fsPtr
- ->freeInternalRepProc)(fsPathPtr->nativePathPtr);
- fsPathPtr->nativePathPtr = NULL;
- }
- }
- }
- if (fsPathPtr->fsRecPtr != NULL) {
- fsPathPtr->fsRecPtr->fileRefCount--;
- if (fsPathPtr->fsRecPtr->fileRefCount <= 0) {
- /* It has been unregistered already */
- ckfree((char *)fsPathPtr->fsRecPtr);
- }
- }
-
- ckfree((char*) fsPathPtr);
-}
-
-static void
-DupFsPathInternalRep(srcPtr, copyPtr)
- Tcl_Obj *srcPtr; /* Path obj with internal rep to copy. */
- Tcl_Obj *copyPtr; /* Path obj with internal rep to set. */
-{
- register FsPath* srcFsPathPtr =
- (FsPath*) srcPtr->internalRep.otherValuePtr;
- register FsPath* copyFsPathPtr =
- (FsPath*) ckalloc((unsigned)sizeof(FsPath));
- Tcl_FSDupInternalRepProc *dupProc;
-
- copyPtr->internalRep.otherValuePtr = (VOID *) copyFsPathPtr;
-
- if (srcFsPathPtr->translatedPathPtr != NULL) {
- copyFsPathPtr->translatedPathPtr = srcFsPathPtr->translatedPathPtr;
- if (copyFsPathPtr->translatedPathPtr != copyPtr) {
- Tcl_IncrRefCount(copyFsPathPtr->translatedPathPtr);
- }
- } else {
- copyFsPathPtr->translatedPathPtr = NULL;
- }
-
- if (srcFsPathPtr->normPathPtr != NULL) {
- copyFsPathPtr->normPathPtr = srcFsPathPtr->normPathPtr;
- if (copyFsPathPtr->normPathPtr != copyPtr) {
- Tcl_IncrRefCount(copyFsPathPtr->normPathPtr);
- }
- } else {
- copyFsPathPtr->normPathPtr = NULL;
- }
-
- if (srcFsPathPtr->cwdPtr != NULL) {
- copyFsPathPtr->cwdPtr = srcFsPathPtr->cwdPtr;
- Tcl_IncrRefCount(copyFsPathPtr->cwdPtr);
- } else {
- copyFsPathPtr->cwdPtr = NULL;
- }
-
- copyFsPathPtr->flags = srcFsPathPtr->flags;
-
- if (srcFsPathPtr->fsRecPtr != NULL
- && srcFsPathPtr->nativePathPtr != NULL) {
- dupProc = srcFsPathPtr->fsRecPtr->fsPtr->dupInternalRepProc;
- if (dupProc != NULL) {
- copyFsPathPtr->nativePathPtr =
- (*dupProc)(srcFsPathPtr->nativePathPtr);
- } else {
- copyFsPathPtr->nativePathPtr = NULL;
- }
- } else {
- copyFsPathPtr->nativePathPtr = NULL;
- }
- copyFsPathPtr->fsRecPtr = srcFsPathPtr->fsRecPtr;
- copyFsPathPtr->filesystemEpoch = srcFsPathPtr->filesystemEpoch;
- if (copyFsPathPtr->fsRecPtr != NULL) {
- copyFsPathPtr->fsRecPtr->fileRefCount++;
- }
-
- copyPtr->typePtr = &tclFsPathType;
-}
/*
*---------------------------------------------------------------------------
@@ -4561,17 +5012,17 @@ Tcl_FSGetTranslatedPath(interp, pathPtr)
if (Tcl_FSConvertToPathType(interp, pathPtr) != TCL_OK) {
return NULL;
}
- srcFsPathPtr = (FsPath*) pathPtr->internalRep.otherValuePtr;
+ srcFsPathPtr = (FsPath*) PATHOBJ(pathPtr);
if (srcFsPathPtr->translatedPathPtr == NULL) {
- if (srcFsPathPtr->flags != 0) {
+ if (PATHFLAGS(pathPtr) != 0) {
return Tcl_FSGetNormalizedPath(interp, pathPtr);
- }
- /*
- * It is a pure absolute, normalized path object.
- * This is something like being a 'pure list'. The
- * object's string, translatedPath and normalizedPath
- * are all identical.
- */
+ }
+ /*
+ * It is a pure absolute, normalized path object.
+ * This is something like being a 'pure list'. The
+ * object's string, translatedPath and normalizedPath
+ * are all identical.
+ */
return srcFsPathPtr->normPathPtr;
} else {
/* It is an ordinary path object */
@@ -4605,7 +5056,7 @@ Tcl_FSGetTranslatedStringPath(interp, pathPtr)
{
Tcl_Obj *transPtr = Tcl_FSGetTranslatedPath(interp, pathPtr);
if (transPtr == NULL) {
- return NULL;
+ return NULL;
} else {
return Tcl_GetString(transPtr);
}
@@ -4639,9 +5090,9 @@ Tcl_FSGetNormalizedPath(interp, pathObjPtr)
if (Tcl_FSConvertToPathType(interp, pathObjPtr) != TCL_OK) {
return NULL;
}
- fsPathPtr = (FsPath*) pathObjPtr->internalRep.otherValuePtr;
+ fsPathPtr = (FsPath*) PATHOBJ(pathObjPtr);
- if (fsPathPtr->flags != 0) {
+ if (PATHFLAGS(pathObjPtr) != 0) {
/*
* This is a special path object which is the result of
* something like 'file join'
@@ -4650,6 +5101,7 @@ Tcl_FSGetNormalizedPath(interp, pathObjPtr)
int cwdLen;
int pathType;
CONST char *cwdStr;
+ ClientData clientData = NULL;
pathType = Tcl_FSGetPathType(fsPathPtr->cwdPtr);
dir = Tcl_FSGetNormalizedPath(interp, fsPathPtr->cwdPtr);
@@ -4697,17 +5149,18 @@ Tcl_FSGetNormalizedPath(interp, pathObjPtr)
* Normalize the combined string, but only starting after
* the end of the previously normalized 'dir'. This should
* be much faster! We use 'cwdLen-1' so that we are
- * already pointing at the dir-separator that we know about.
- * The normalization code will actually start off directly
- * after that separator.
+ * already pointing at the dir-separator that we know about.
+ * The normalization code will actually start off directly
+ * after that separator.
*/
- TclNormalizeToUniquePath(interp, copy, cwdLen-1);
+ TclFSNormalizeToUniquePath(interp, copy, cwdLen-1,
+ (fsPathPtr->nativePathPtr == NULL ? &clientData : NULL));
/* Now we need to construct the new path object */
if (pathType == TCL_PATH_RELATIVE) {
register FsPath* origDirFsPathPtr;
Tcl_Obj *origDir = fsPathPtr->cwdPtr;
- origDirFsPathPtr = (FsPath*) origDir->internalRep.otherValuePtr;
+ origDirFsPathPtr = (FsPath*) PATHOBJ(origDir);
fsPathPtr->cwdPtr = origDirFsPathPtr->cwdPtr;
Tcl_IncrRefCount(fsPathPtr->cwdPtr);
@@ -4725,11 +5178,14 @@ Tcl_FSGetNormalizedPath(interp, pathObjPtr)
/* That's our reference to copy used */
Tcl_DecrRefCount(dir);
}
- fsPathPtr->flags = 0;
+ if (clientData != NULL) {
+ fsPathPtr->nativePathPtr = clientData;
+ }
+ PATHFLAGS(pathObjPtr) = 0;
}
/* Ensure cwd hasn't changed */
if (fsPathPtr->cwdPtr != NULL) {
- if (!FsCwdPointerEquals(fsPathPtr->cwdPtr)) {
+ if (!TclFSCwdPointerEquals(fsPathPtr->cwdPtr)) {
if (pathObjPtr->bytes == NULL) {
UpdateStringOfFsPath(pathObjPtr);
}
@@ -4737,13 +5193,14 @@ Tcl_FSGetNormalizedPath(interp, pathObjPtr)
pathObjPtr->typePtr = NULL;
if (Tcl_ConvertToType(interp, pathObjPtr,
&tclFsPathType) != TCL_OK) {
- return NULL;
+ return NULL;
}
- fsPathPtr = (FsPath*) pathObjPtr->internalRep.otherValuePtr;
+ fsPathPtr = (FsPath*) PATHOBJ(pathObjPtr);
} else if (fsPathPtr->normPathPtr == NULL) {
int cwdLen;
Tcl_Obj *copy;
CONST char *cwdStr;
+ ClientData clientData = NULL;
copy = Tcl_DuplicateObj(fsPathPtr->cwdPtr);
Tcl_IncrRefCount(copy);
@@ -4781,12 +5238,17 @@ Tcl_FSGetNormalizedPath(interp, pathObjPtr)
* the end of the previously normalized 'dir'. This should
* be much faster!
*/
- TclNormalizeToUniquePath(interp, copy, cwdLen-1);
+ TclFSNormalizeToUniquePath(interp, copy, cwdLen-1,
+ (fsPathPtr->nativePathPtr == NULL ? &clientData : NULL));
fsPathPtr->normPathPtr = copy;
+ if (clientData != NULL) {
+ fsPathPtr->nativePathPtr = clientData;
+ }
}
}
if (fsPathPtr->normPathPtr == NULL) {
- int relative = 0;
+ ClientData clientData = NULL;
+ Tcl_Obj *useThisCwd = NULL;
/*
* Since normPathPtr is NULL, but this is a valid path
* object, we know that the translatedPathPtr cannot be NULL.
@@ -4802,20 +5264,23 @@ Tcl_FSGetNormalizedPath(interp, pathObjPtr)
*/
if ((path[0] != '\0') &&
(Tcl_FSGetPathType(pathObjPtr) == TCL_PATH_RELATIVE)) {
- Tcl_Obj *cwd = Tcl_FSGetCwd(interp);
+ useThisCwd = Tcl_FSGetCwd(interp);
- if (cwd == NULL) {
+ if (useThisCwd == NULL) {
return NULL;
}
- absolutePath = Tcl_FSJoinToPath(cwd, 1, &absolutePath);
+ absolutePath = Tcl_FSJoinToPath(useThisCwd, 1, &absolutePath);
Tcl_IncrRefCount(absolutePath);
- Tcl_DecrRefCount(cwd);
-
- relative = 1;
+ /* We have a refCount on the cwd */
}
/* Already has refCount incremented */
- fsPathPtr->normPathPtr = FSNormalizeAbsolutePath(interp, absolutePath);
+ fsPathPtr->normPathPtr = TclFSNormalizeAbsolutePath(interp, absolutePath,
+ (fsPathPtr->nativePathPtr == NULL ? &clientData : NULL));
+ if (0 && (clientData != NULL)) {
+ fsPathPtr->nativePathPtr =
+ (*fsPathPtr->fsRecPtr->fsPtr->dupInternalRepProc)(clientData);
+ }
if (!strcmp(Tcl_GetString(fsPathPtr->normPathPtr),
Tcl_GetString(pathObjPtr))) {
/*
@@ -4829,15 +5294,10 @@ Tcl_FSGetNormalizedPath(interp, pathObjPtr)
*/
fsPathPtr->normPathPtr = pathObjPtr;
}
- if (relative) {
+ if (useThisCwd != NULL) {
/* This was returned by Tcl_FSJoinToPath above */
Tcl_DecrRefCount(absolutePath);
-
- /* Get a quick, temporary lock on the cwd while we copy it */
- Tcl_MutexLock(&cwdMutex);
- fsPathPtr->cwdPtr = cwdPathPtr;
- Tcl_IncrRefCount(fsPathPtr->cwdPtr);
- Tcl_MutexUnlock(&cwdMutex);
+ fsPathPtr->cwdPtr = useThisCwd;
}
}
return fsPathPtr->normPathPtr;
@@ -4875,7 +5335,7 @@ Tcl_FSGetInternalRep(pathObjPtr, fsPtr)
if (Tcl_FSConvertToPathType(NULL, pathObjPtr) != TCL_OK) {
return NULL;
}
- srcFsPathPtr = (FsPath*) pathObjPtr->internalRep.otherValuePtr;
+ srcFsPathPtr = (FsPath*) PATHOBJ(pathObjPtr);
/*
* We will only return the native representation for the caller's
@@ -4910,7 +5370,7 @@ Tcl_FSGetInternalRep(pathObjPtr, fsPtr)
* use of the empty path "" via a direct call to one of the
* objectified interfaces (e.g. from the Tcl testsuite).
*/
- srcFsPathPtr = (FsPath*) pathObjPtr->internalRep.otherValuePtr;
+ srcFsPathPtr = (FsPath*) PATHOBJ(pathObjPtr);
if (srcFsPathPtr->fsRecPtr == NULL) {
return NULL;
}
@@ -4946,435 +5406,45 @@ Tcl_FSGetInternalRep(pathObjPtr, fsPtr)
/*
*---------------------------------------------------------------------------
*
- * Tcl_FSGetNativePath --
+ * TclFSEnsureEpochOk --
*
- * This function is for use by the Win/Unix/MacOS native filesystems,
- * so that they can easily retrieve the native (char* or TCHAR*)
- * representation of a path. Other filesystems will probably
- * want to implement similar functions. They basically act as a
- * safety net around Tcl_FSGetInternalRep. Normally your file-
- * system procedures will always be called with path objects
- * already converted to the correct filesystem, but if for
- * some reason they are called directly (i.e. by procedures
- * not in this file), then one cannot necessarily guarantee that
- * the path object pointer is from the correct filesystem.
- *
- * Note: in the future it might be desireable to have separate
- * versions of this function with different signatures, for
- * example Tcl_FSGetNativeMacPath, Tcl_FSGetNativeUnixPath etc.
- * Right now, since native paths are all string based, we use just
- * one function. On MacOS we could possibly use an FSSpec or
- * FSRef as the native representation.
+ * This will ensure the pathObjPtr is up to date and can be
+ * converted into a "path" type, and that we are able to generate a
+ * complete normalized path which is used to determine the
+ * filesystem match.
*
* Results:
- * NULL or a valid native path.
+ * Standard Tcl return code.
*
* Side effects:
- * See Tcl_FSGetInternalRep.
+ * An attempt may be made to convert the object.
*
*---------------------------------------------------------------------------
*/
-CONST char *
-Tcl_FSGetNativePath(pathObjPtr)
- Tcl_Obj *pathObjPtr;
-{
- return (CONST char *)Tcl_FSGetInternalRep(pathObjPtr, &tclNativeFilesystem);
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * NativeCreateNativeRep --
- *
- * Create a native representation for the given path.
- *
- * Results:
- * None.
- *
- * Side effects:
- * None.
- *
- *---------------------------------------------------------------------------
- */
-static ClientData
-NativeCreateNativeRep(pathObjPtr)
+int
+TclFSEnsureEpochOk(pathObjPtr, theEpoch, fsPtrPtr)
Tcl_Obj* pathObjPtr;
+ int theEpoch;
+ Tcl_Filesystem **fsPtrPtr;
{
- char *nativePathPtr;
- Tcl_DString ds;
- Tcl_Obj* validPathObjPtr;
- int len;
- char *str;
-
- /* Make sure the normalized path is set */
- validPathObjPtr = Tcl_FSGetNormalizedPath(NULL, pathObjPtr);
-
- str = Tcl_GetStringFromObj(validPathObjPtr, &len);
-#ifdef __WIN32__
- Tcl_WinUtfToTChar(str, len, &ds);
- if (tclWinProcs->useWide) {
- len = Tcl_DStringLength(&ds) + sizeof(WCHAR);
- } else {
- len = Tcl_DStringLength(&ds) + sizeof(char);
- }
-#else
- Tcl_UtfToExternalDString(NULL, str, len, &ds);
- len = Tcl_DStringLength(&ds) + sizeof(char);
-#endif
- nativePathPtr = ckalloc((unsigned) len);
- memcpy((VOID*)nativePathPtr, (VOID*)Tcl_DStringValue(&ds), (size_t) len);
-
- Tcl_DStringFree(&ds);
- return (ClientData)nativePathPtr;
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * TclpNativeToNormalized --
- *
- * Convert native format to a normalized path object, with refCount
- * of zero.
- *
- * Results:
- * A valid normalized path.
- *
- * Side effects:
- * None.
- *
- *---------------------------------------------------------------------------
- */
-Tcl_Obj*
-TclpNativeToNormalized(clientData)
- ClientData clientData;
-{
- Tcl_DString ds;
- Tcl_Obj *objPtr;
- CONST char *copy;
- int len;
-
-#ifdef __WIN32__
- Tcl_WinTCharToUtf((CONST char*)clientData, -1, &ds);
-#else
- Tcl_ExternalToUtfDString(NULL, (CONST char*)clientData, -1, &ds);
-#endif
-
- copy = Tcl_DStringValue(&ds);
- len = Tcl_DStringLength(&ds);
+ FsPath* srcFsPathPtr;
-#ifdef __WIN32__
/*
- * Certain native path representations on Windows have this special
- * prefix to indicate that they are to be treated specially. For
- * example extremely long paths, or symlinks
+ * SHOULD BE ABLE TO IMPROVE EFFICIENCY HERE.
*/
- if (*copy == '\\') {
- if (0 == strncmp(copy,"\\??\\",4)) {
- copy += 4;
- len -= 4;
- } else if (0 == strncmp(copy,"\\\\?\\",4)) {
- copy += 4;
- len -= 4;
- }
- }
-#endif
-
- objPtr = Tcl_NewStringObj(copy,len);
- Tcl_DStringFree(&ds);
-
- return objPtr;
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * NativeDupInternalRep --
- *
- * Duplicate the native representation.
- *
- * Results:
- * The copied native representation, or NULL if it is not possible
- * to copy the representation.
- *
- * Side effects:
- * None.
- *
- *---------------------------------------------------------------------------
- */
-static ClientData
-NativeDupInternalRep(clientData)
- ClientData clientData;
-{
- ClientData copy;
- size_t len;
-
- if (clientData == NULL) {
- return NULL;
- }
-
-#ifdef __WIN32__
- if (tclWinProcs->useWide) {
- /* unicode representation when running on NT/2K/XP */
- len = sizeof(WCHAR) + (wcslen((CONST WCHAR*)clientData) * sizeof(WCHAR));
- } else {
- /* ansi representation when running on 95/98/ME */
- len = sizeof(char) + (strlen((CONST char*)clientData) * sizeof(char));
- }
-#else
- /* ansi representation when running on Unix/MacOS */
- len = sizeof(char) + (strlen((CONST char*)clientData) * sizeof(char));
-#endif
-
- copy = (ClientData) ckalloc(len);
- memcpy((VOID*)copy, (VOID*)clientData, len);
- return copy;
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * NativePathInFilesystem --
- *
- * Any path object is acceptable to the native filesystem, by
- * default (we will throw errors when illegal paths are actually
- * tried to be used).
- *
- * However, this behavior means the native filesystem must be
- * the last filesystem in the lookup list (otherwise it will
- * claim all files belong to it, and other filesystems will
- * never get a look in).
- *
- * Results:
- * TCL_OK, to indicate 'yes', -1 to indicate no.
- *
- * Side effects:
- * None.
- *
- *---------------------------------------------------------------------------
- */
-static int
-NativePathInFilesystem(pathPtr, clientDataPtr)
- Tcl_Obj *pathPtr;
- ClientData *clientDataPtr;
-{
- int len;
- Tcl_GetStringFromObj(pathPtr,&len);
- if (len == 0) {
- return -1;
- } else {
- /* We accept any path as valid */
- return TCL_OK;
- }
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * NativeFreeInternalRep --
- *
- * Free a native internal representation, which will be non-NULL.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Memory is released.
- *
- *---------------------------------------------------------------------------
- */
-static void
-NativeFreeInternalRep(clientData)
- ClientData clientData;
-{
- ckfree((char*)clientData);
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * Tcl_FSFileSystemInfo --
- *
- * This function returns a list of two elements. The first
- * element is the name of the filesystem (e.g. "native" or "vfs"),
- * and the second is the particular type of the given path within
- * that filesystem.
- *
- * Results:
- * A list of two elements.
- *
- * Side effects:
- * The object may be converted to a path type.
- *
- *---------------------------------------------------------------------------
- */
-Tcl_Obj*
-Tcl_FSFileSystemInfo(pathObjPtr)
- Tcl_Obj* pathObjPtr;
-{
- Tcl_Obj *resPtr;
- Tcl_FSFilesystemPathTypeProc *proc;
- Tcl_Filesystem *fsPtr = Tcl_FSGetFileSystemForPath(pathObjPtr);
-
- if (fsPtr == NULL) {
- return NULL;
- }
-
- resPtr = Tcl_NewListObj(0,NULL);
-
- Tcl_ListObjAppendElement(NULL, resPtr,
- Tcl_NewStringObj(fsPtr->typeName,-1));
-
- proc = fsPtr->filesystemPathTypeProc;
- if (proc != NULL) {
- Tcl_Obj *typePtr = (*proc)(pathObjPtr);
- if (typePtr != NULL) {
- Tcl_ListObjAppendElement(NULL, resPtr, typePtr);
- }
- }
-
- return resPtr;
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * Tcl_FSPathSeparator --
- *
- * This function returns the separator to be used for a given
- * path. The object returned should have a refCount of zero
- *
- * Results:
- * A Tcl object, with a refCount of zero. If the caller
- * needs to retain a reference to the object, it should
- * call Tcl_IncrRefCount.
- *
- * Side effects:
- * The path object may be converted to a path type.
- *
- *---------------------------------------------------------------------------
- */
-Tcl_Obj*
-Tcl_FSPathSeparator(pathObjPtr)
- Tcl_Obj* pathObjPtr;
-{
- Tcl_Filesystem *fsPtr = Tcl_FSGetFileSystemForPath(pathObjPtr);
-
- if (fsPtr == NULL) {
- return NULL;
- }
- if (fsPtr->filesystemSeparatorProc != NULL) {
- return (*fsPtr->filesystemSeparatorProc)(pathObjPtr);
- }
-
- return NULL;
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * NativeFilesystemSeparator --
- *
- * This function is part of the native filesystem support, and
- * returns the separator for the given path.
- *
- * Results:
- * String object containing the separator character.
- *
- * Side effects:
- * None.
- *
- *---------------------------------------------------------------------------
- */
-static Tcl_Obj*
-NativeFilesystemSeparator(pathObjPtr)
- Tcl_Obj* pathObjPtr;
-{
- char *separator = NULL; /* lint */
- switch (tclPlatform) {
- case TCL_PLATFORM_UNIX:
- separator = "/";
- break;
- case TCL_PLATFORM_WINDOWS:
- separator = "\\";
- break;
- case TCL_PLATFORM_MAC:
- separator = ":";
- break;
+ if (Tcl_FSGetNormalizedPath(NULL, pathObjPtr) == NULL) {
+ return TCL_ERROR;
}
- return Tcl_NewStringObj(separator,1);
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * Tcl_FSGetFileSystemForPath --
- *
- * This function determines which filesystem to use for a
- * particular path object, and returns the filesystem which
- * accepts this file. If no filesystem will accept this object
- * as a valid file path, then NULL is returned.
- *
- * Results:
-.* NULL or a filesystem which will accept this path.
- *
- * Side effects:
- * The object may be converted to a path type.
- *
- *---------------------------------------------------------------------------
- */
-Tcl_Filesystem*
-Tcl_FSGetFileSystemForPath(pathObjPtr)
- Tcl_Obj* pathObjPtr;
-{
- FilesystemRecord *fsRecPtr;
- Tcl_Filesystem* retVal = NULL;
- FsPath* srcFsPathPtr;
-
- /*
- * If the object has a refCount of zero, we reject it. This
- * is to avoid possible segfaults or nondeterministic memory
- * leaks (i.e. the user doesn't know if they should decrement
- * the ref count on return or not).
- */
-
- if (pathObjPtr->refCount == 0) {
- panic("Tcl_FSGetFileSystemForPath called with object with refCount == 0");
- return NULL;
- }
-
- /*
- * This will ensure the pathObjPtr can be converted into a
- * "path" type, and that we are able to generate a complete
- * normalized path which is used to determine the filesystem
- * match.
- */
+ srcFsPathPtr = (FsPath*) PATHOBJ(pathObjPtr);
- if (Tcl_FSGetNormalizedPath(NULL, pathObjPtr) == NULL) {
- return NULL;
- }
-
- /*
- * Get a lock on theFilesystemEpoch and the filesystemList
- *
- * While we don't need the fsRecPtr until the while loop below, we
- * do want to make sure the theFilesystemEpoch doesn't change
- * between the 'if' and 'while' blocks, getting this iterator will
- * ensure that everything is consistent
- */
- fsRecPtr = FsGetIterator();
-
- /* Make sure pathObjPtr is of the correct epoch */
-
- srcFsPathPtr = (FsPath*) pathObjPtr->internalRep.otherValuePtr;
-
/*
* Check if the filesystem has changed in some way since
* this object's internal representation was calculated.
*/
- if (srcFsPathPtr->filesystemEpoch != theFilesystemEpoch) {
+ if (srcFsPathPtr->filesystemEpoch != theEpoch) {
/*
* We have to discard the stale representation and
* recalculate it
@@ -5385,64 +5455,32 @@ Tcl_FSGetFileSystemForPath(pathObjPtr)
FreeFsPathInternalRep(pathObjPtr);
pathObjPtr->typePtr = NULL;
if (SetFsPathFromAny(NULL, pathObjPtr) != TCL_OK) {
- goto done;
+ return TCL_ERROR;
}
- srcFsPathPtr = (FsPath*) pathObjPtr->internalRep.otherValuePtr;
+ srcFsPathPtr = (FsPath*) PATHOBJ(pathObjPtr);
}
-
/* Check whether the object is already assigned to a fs */
if (srcFsPathPtr->fsRecPtr != NULL) {
- retVal = srcFsPathPtr->fsRecPtr->fsPtr;
- goto done;
+ *fsPtrPtr = srcFsPathPtr->fsRecPtr->fsPtr;
}
-
- /*
- * Call each of the "pathInFilesystem" functions in succession. A
- * non-return value of -1 indicates the particular function has
- * succeeded.
- */
-
- while ((retVal == NULL) && (fsRecPtr != NULL)) {
- Tcl_FSPathInFilesystemProc *proc = fsRecPtr->fsPtr->pathInFilesystemProc;
- if (proc != NULL) {
- ClientData clientData = NULL;
- int ret = (*proc)(pathObjPtr, &clientData);
- if (ret != -1) {
- /*
- * We assume the srcFsPathPtr hasn't been changed
- * by the above call to the pathInFilesystemProc.
- */
- srcFsPathPtr->fsRecPtr = fsRecPtr;
- srcFsPathPtr->nativePathPtr = clientData;
- srcFsPathPtr->filesystemEpoch = theFilesystemEpoch;
- fsRecPtr->fileRefCount++;
- retVal = fsRecPtr->fsPtr;
- }
- }
- fsRecPtr = fsRecPtr->nextPtr;
- }
-
- done:
- FsReleaseIterator();
- return retVal;
+ return TCL_OK;
}
-/* Simple helper function */
-static FilesystemRecord*
-GetFilesystemRecord(fromFilesystem, epoch)
- Tcl_Filesystem *fromFilesystem;
- int *epoch;
+void
+TclFSSetPathDetails(pathObjPtr, fsRecPtr, clientData, theEpoch)
+ Tcl_Obj *pathObjPtr;
+ FilesystemRecord *fsRecPtr;
+ ClientData clientData;
+ int theEpoch;
{
- FilesystemRecord *fsRecPtr = FsGetIterator();
- while (fsRecPtr != NULL) {
- if (fsRecPtr->fsPtr == fromFilesystem) {
- *epoch = theFilesystemEpoch;
- break;
- }
- fsRecPtr = fsRecPtr->nextPtr;
- }
- FsReleaseIterator();
- return fsRecPtr;
+ /* We assume pathObjPtr is already of the correct type */
+ FsPath* srcFsPathPtr;
+
+ srcFsPathPtr = (FsPath*) PATHOBJ(pathObjPtr);
+ srcFsPathPtr->fsRecPtr = fsRecPtr;
+ srcFsPathPtr->nativePathPtr = clientData;
+ srcFsPathPtr->filesystemEpoch = theEpoch;
+ fsRecPtr->fileRefCount++;
}
/*
@@ -5468,10 +5506,10 @@ Tcl_FSEqualPaths(firstPtr, secondPtr)
Tcl_Obj* secondPtr;
{
if (firstPtr == secondPtr) {
- return 1;
+ return 1;
} else {
char *firstStr, *secondStr;
- int firstLen, secondLen, tempErrno;
+ int firstLen, secondLen, tempErrno;
if (firstPtr == NULL || secondPtr == NULL) {
return 0;
@@ -5482,9 +5520,9 @@ Tcl_FSEqualPaths(firstPtr, secondPtr)
return 1;
}
/*
- * Try the most thorough, correct method of comparing fully
- * normalized paths
- */
+ * Try the most thorough, correct method of comparing fully
+ * normalized paths
+ */
tempErrno = Tcl_GetErrno();
firstPtr = Tcl_FSGetNormalizedPath(NULL, firstPtr);
@@ -5502,321 +5540,408 @@ Tcl_FSEqualPaths(firstPtr, secondPtr)
}
return 0;
}
-
-/* Everything from here on is contained in this obsolete ifdef */
-#ifdef USE_OBSOLETE_FS_HOOKS
/*
- *----------------------------------------------------------------------
+ *---------------------------------------------------------------------------
*
- * TclStatInsertProc --
+ * SetFsPathFromAny --
*
- * Insert the passed procedure pointer at the head of the list of
- * functions which are used during a call to 'TclStat(...)'. The
- * passed function should behave exactly like 'TclStat' when called
- * during that time (see 'TclStat(...)' for more information).
- * The function will be added even if it already in the list.
+ * This function tries to convert the given Tcl_Obj to a valid
+ * Tcl path type.
+ *
+ * The filename may begin with "~" (to indicate current user's
+ * home directory) or "~<user>" (to indicate any user's home
+ * directory).
*
* Results:
- * Normally TCL_OK; TCL_ERROR if memory for a new node in the list
- * could not be allocated.
+ * Standard Tcl error code.
*
* Side effects:
- * Memory allocated and modifies the link list for 'TclStat'
- * functions.
+ * The old representation may be freed, and new memory allocated.
*
- *----------------------------------------------------------------------
+ *---------------------------------------------------------------------------
*/
-int
-TclStatInsertProc (proc)
- TclStatProc_ *proc;
+static int
+SetFsPathFromAny(interp, objPtr)
+ Tcl_Interp *interp; /* Used for error reporting if not NULL. */
+ Tcl_Obj *objPtr; /* The object to convert. */
{
- int retVal = TCL_ERROR;
+ int len;
+ FsPath *fsPathPtr;
+ Tcl_Obj *transPtr;
+ char *name;
+
+ if (objPtr->typePtr == &tclFsPathType) {
+ return TCL_OK;
+ }
+
+ /*
+ * First step is to translate the filename. This is similar to
+ * Tcl_TranslateFilename, but shouldn't convert everything to
+ * windows backslashes on that platform. The current
+ * implementation of this piece is a slightly optimised version
+ * of the various Tilde/Split/Join stuff to avoid multiple
+ * split/join operations.
+ *
+ * We remove any trailing directory separator.
+ *
+ * However, the split/join routines are quite complex, and
+ * one has to make sure not to break anything on Unix, Win
+ * or MacOS (fCmd.test, fileName.test and cmdAH.test exercise
+ * most of the code).
+ */
+ name = Tcl_GetStringFromObj(objPtr,&len);
- if (proc != NULL) {
- StatProc *newStatProcPtr;
+ /*
+ * Handle tilde substitutions, if needed.
+ */
+ if (name[0] == '~') {
+ char *expandedUser;
+ Tcl_DString temp;
+ int split;
+ char separator='/';
+
+ if (tclPlatform==TCL_PLATFORM_MAC) {
+ if (strchr(name, ':') != NULL) separator = ':';
+ }
+
+ split = FindSplitPos(name, &separator);
+ if (split != len) {
+ /* We have multiple pieces '~user/foo/bar...' */
+ name[split] = '\0';
+ }
+ /* Do some tilde substitution */
+ if (name[1] == '\0') {
+ /* We have just '~' */
+ CONST char *dir;
+ Tcl_DString dirString;
+ if (split != len) { name[split] = separator; }
+
+ dir = TclGetEnv("HOME", &dirString);
+ if (dir == NULL) {
+ if (interp) {
+ Tcl_ResetResult(interp);
+ Tcl_AppendResult(interp, "couldn't find HOME environment ",
+ "variable to expand path", (char *) NULL);
+ }
+ return TCL_ERROR;
+ }
+ Tcl_DStringInit(&temp);
+ Tcl_JoinPath(1, &dir, &temp);
+ Tcl_DStringFree(&dirString);
+ } else {
+ /* We have a user name '~user' */
+ Tcl_DStringInit(&temp);
+ if (TclpGetUserHome(name+1, &temp) == NULL) {
+ if (interp != NULL) {
+ Tcl_ResetResult(interp);
+ Tcl_AppendResult(interp, "user \"", (name+1),
+ "\" doesn't exist", (char *) NULL);
+ }
+ Tcl_DStringFree(&temp);
+ if (split != len) { name[split] = separator; }
+ return TCL_ERROR;
+ }
+ if (split != len) { name[split] = separator; }
+ }
+
+ expandedUser = Tcl_DStringValue(&temp);
+ transPtr = Tcl_NewStringObj(expandedUser, Tcl_DStringLength(&temp));
- newStatProcPtr = (StatProc *)ckalloc(sizeof(StatProc));
+ if (split != len) {
+ /* Join up the tilde substitution with the rest */
+ if (name[split+1] == separator) {
- if (newStatProcPtr != NULL) {
- newStatProcPtr->proc = proc;
- Tcl_MutexLock(&obsoleteFsHookMutex);
- newStatProcPtr->nextPtr = statProcList;
- statProcList = newStatProcPtr;
- Tcl_MutexUnlock(&obsoleteFsHookMutex);
+ /*
+ * Somewhat tricky case like ~//foo/bar.
+ * Make use of Split/Join machinery to get it right.
+ * Assumes all paths beginning with ~ are part of the
+ * native filesystem.
+ */
- retVal = TCL_OK;
+ int objc;
+ Tcl_Obj **objv;
+ Tcl_Obj *parts = TclpNativeSplitPath(objPtr, NULL);
+ Tcl_ListObjGetElements(NULL, parts, &objc, &objv);
+ /* Skip '~'. It's replaced by its expansion */
+ objc--; objv++;
+ while (objc--) {
+ TclpNativeJoinPath(transPtr, Tcl_GetString(*objv++));
+ }
+ Tcl_DecrRefCount(parts);
+ } else {
+ /* Simple case. "rest" is relative path. Just join it. */
+ Tcl_Obj *rest = Tcl_NewStringObj(name+split+1,-1);
+ transPtr = Tcl_FSJoinToPath(transPtr, 1, &rest);
+ }
}
+ Tcl_DStringFree(&temp);
+ } else {
+ transPtr = Tcl_FSJoinToPath(objPtr,0,NULL);
}
- return (retVal);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclStatDeleteProc --
- *
- * Removed the passed function pointer from the list of 'TclStat'
- * functions. Ensures that the built-in stat function is not
- * removvable.
- *
- * Results:
- * TCL_OK if the procedure pointer was successfully removed,
- * TCL_ERROR otherwise.
- *
- * Side effects:
- * Memory is deallocated and the respective list updated.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclStatDeleteProc (proc)
- TclStatProc_ *proc;
-{
- int retVal = TCL_ERROR;
- StatProc *tmpStatProcPtr;
- StatProc *prevStatProcPtr = NULL;
+ /*
+ * Now we have a translated filename in 'transPtr'. This will have
+ * forward slashes on Windows, and will not contain any ~user
+ * sequences.
+ */
+
+ fsPathPtr = (FsPath*)ckalloc((unsigned)sizeof(FsPath));
+ fsPathPtr->translatedPathPtr = transPtr;
+ Tcl_IncrRefCount(fsPathPtr->translatedPathPtr);
+ fsPathPtr->normPathPtr = NULL;
+ fsPathPtr->cwdPtr = NULL;
+ fsPathPtr->nativePathPtr = NULL;
+ fsPathPtr->fsRecPtr = NULL;
+ fsPathPtr->filesystemEpoch = theFilesystemEpoch;
- Tcl_MutexLock(&obsoleteFsHookMutex);
- tmpStatProcPtr = statProcList;
/*
- * Traverse the 'statProcList' looking for the particular node
- * whose 'proc' member matches 'proc' and remove that one from
- * the list. Ensure that the "default" node cannot be removed.
+ * Free old representation before installing our new one.
*/
-
- while ((retVal == TCL_ERROR) && (tmpStatProcPtr != NULL)) {
- if (tmpStatProcPtr->proc == proc) {
- if (prevStatProcPtr == NULL) {
- statProcList = tmpStatProcPtr->nextPtr;
- } else {
- prevStatProcPtr->nextPtr = tmpStatProcPtr->nextPtr;
- }
-
- ckfree((char *)tmpStatProcPtr);
-
- retVal = TCL_OK;
- } else {
- prevStatProcPtr = tmpStatProcPtr;
- tmpStatProcPtr = tmpStatProcPtr->nextPtr;
- }
+ if (objPtr->typePtr != NULL && objPtr->typePtr->freeIntRepProc != NULL) {
+ (objPtr->typePtr->freeIntRepProc)(objPtr);
}
+ PATHOBJ(objPtr) = (VOID *) fsPathPtr;
+ PATHFLAGS(objPtr) = 0;
+ objPtr->typePtr = &tclFsPathType;
- Tcl_MutexUnlock(&obsoleteFsHookMutex);
- return (retVal);
+ return TCL_OK;
}
-/*
- *----------------------------------------------------------------------
- *
- * TclAccessInsertProc --
- *
- * Insert the passed procedure pointer at the head of the list of
- * functions which are used during a call to 'TclAccess(...)'.
- * The passed function should behave exactly like 'TclAccess' when
- * called during that time (see 'TclAccess(...)' for more
- * information). The function will be added even if it already in
- * the list.
- *
- * Results:
- * Normally TCL_OK; TCL_ERROR if memory for a new node in the list
- * could not be allocated.
- *
- * Side effects:
- * Memory allocated and modifies the link list for 'TclAccess'
- * functions.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclAccessInsertProc(proc)
- TclAccessProc_ *proc;
+static void
+FreeFsPathInternalRep(pathObjPtr)
+ Tcl_Obj *pathObjPtr; /* Path object with internal rep to free. */
{
- int retVal = TCL_ERROR;
-
- if (proc != NULL) {
- AccessProc *newAccessProcPtr;
-
- newAccessProcPtr = (AccessProc *)ckalloc(sizeof(AccessProc));
-
- if (newAccessProcPtr != NULL) {
- newAccessProcPtr->proc = proc;
- Tcl_MutexLock(&obsoleteFsHookMutex);
- newAccessProcPtr->nextPtr = accessProcList;
- accessProcList = newAccessProcPtr;
- Tcl_MutexUnlock(&obsoleteFsHookMutex);
+ register FsPath* fsPathPtr = (FsPath*) PATHOBJ(pathObjPtr);
- retVal = TCL_OK;
+ if (fsPathPtr->translatedPathPtr != NULL) {
+ if (fsPathPtr->translatedPathPtr != pathObjPtr) {
+ Tcl_DecrRefCount(fsPathPtr->translatedPathPtr);
+ }
+ }
+ if (fsPathPtr->normPathPtr != NULL) {
+ if (fsPathPtr->normPathPtr != pathObjPtr) {
+ Tcl_DecrRefCount(fsPathPtr->normPathPtr);
+ }
+ fsPathPtr->normPathPtr = NULL;
+ }
+ if (fsPathPtr->cwdPtr != NULL) {
+ Tcl_DecrRefCount(fsPathPtr->cwdPtr);
+ }
+ if (fsPathPtr->nativePathPtr != NULL) {
+ if (fsPathPtr->fsRecPtr != NULL) {
+ if (fsPathPtr->fsRecPtr->fsPtr->freeInternalRepProc != NULL) {
+ (*fsPathPtr->fsRecPtr->fsPtr
+ ->freeInternalRepProc)(fsPathPtr->nativePathPtr);
+ fsPathPtr->nativePathPtr = NULL;
+ }
+ }
+ }
+ if (fsPathPtr->fsRecPtr != NULL) {
+ fsPathPtr->fsRecPtr->fileRefCount--;
+ if (fsPathPtr->fsRecPtr->fileRefCount <= 0) {
+ /* It has been unregistered already */
+ ckfree((char *)fsPathPtr->fsRecPtr);
}
}
- return (retVal);
+ ckfree((char*) fsPathPtr);
}
-/*
- *----------------------------------------------------------------------
- *
- * TclAccessDeleteProc --
- *
- * Removed the passed function pointer from the list of 'TclAccess'
- * functions. Ensures that the built-in access function is not
- * removvable.
- *
- * Results:
- * TCL_OK if the procedure pointer was successfully removed,
- * TCL_ERROR otherwise.
- *
- * Side effects:
- * Memory is deallocated and the respective list updated.
- *
- *----------------------------------------------------------------------
- */
-int
-TclAccessDeleteProc(proc)
- TclAccessProc_ *proc;
+static void
+DupFsPathInternalRep(srcPtr, copyPtr)
+ Tcl_Obj *srcPtr; /* Path obj with internal rep to copy. */
+ Tcl_Obj *copyPtr; /* Path obj with internal rep to set. */
{
- int retVal = TCL_ERROR;
- AccessProc *tmpAccessProcPtr;
- AccessProc *prevAccessProcPtr = NULL;
-
- /*
- * Traverse the 'accessProcList' looking for the particular node
- * whose 'proc' member matches 'proc' and remove that one from
- * the list. Ensure that the "default" node cannot be removed.
- */
-
- Tcl_MutexLock(&obsoleteFsHookMutex);
- tmpAccessProcPtr = accessProcList;
- while ((retVal == TCL_ERROR) && (tmpAccessProcPtr != NULL)) {
- if (tmpAccessProcPtr->proc == proc) {
- if (prevAccessProcPtr == NULL) {
- accessProcList = tmpAccessProcPtr->nextPtr;
- } else {
- prevAccessProcPtr->nextPtr = tmpAccessProcPtr->nextPtr;
- }
+ register FsPath* srcFsPathPtr = (FsPath*) PATHOBJ(srcPtr);
+ register FsPath* copyFsPathPtr =
+ (FsPath*) ckalloc((unsigned)sizeof(FsPath));
+ Tcl_FSDupInternalRepProc *dupProc;
+
+ PATHOBJ(copyPtr) = (VOID *) copyFsPathPtr;
- ckfree((char *)tmpAccessProcPtr);
+ if (srcFsPathPtr->translatedPathPtr != NULL) {
+ copyFsPathPtr->translatedPathPtr = srcFsPathPtr->translatedPathPtr;
+ if (copyFsPathPtr->translatedPathPtr != copyPtr) {
+ Tcl_IncrRefCount(copyFsPathPtr->translatedPathPtr);
+ }
+ } else {
+ copyFsPathPtr->translatedPathPtr = NULL;
+ }
+
+ if (srcFsPathPtr->normPathPtr != NULL) {
+ copyFsPathPtr->normPathPtr = srcFsPathPtr->normPathPtr;
+ if (copyFsPathPtr->normPathPtr != copyPtr) {
+ Tcl_IncrRefCount(copyFsPathPtr->normPathPtr);
+ }
+ } else {
+ copyFsPathPtr->normPathPtr = NULL;
+ }
+
+ if (srcFsPathPtr->cwdPtr != NULL) {
+ copyFsPathPtr->cwdPtr = srcFsPathPtr->cwdPtr;
+ Tcl_IncrRefCount(copyFsPathPtr->cwdPtr);
+ } else {
+ copyFsPathPtr->cwdPtr = NULL;
+ }
- retVal = TCL_OK;
+ copyFsPathPtr->flags = srcFsPathPtr->flags;
+
+ if (srcFsPathPtr->fsRecPtr != NULL
+ && srcFsPathPtr->nativePathPtr != NULL) {
+ dupProc = srcFsPathPtr->fsRecPtr->fsPtr->dupInternalRepProc;
+ if (dupProc != NULL) {
+ copyFsPathPtr->nativePathPtr =
+ (*dupProc)(srcFsPathPtr->nativePathPtr);
} else {
- prevAccessProcPtr = tmpAccessProcPtr;
- tmpAccessProcPtr = tmpAccessProcPtr->nextPtr;
+ copyFsPathPtr->nativePathPtr = NULL;
}
+ } else {
+ copyFsPathPtr->nativePathPtr = NULL;
+ }
+ copyFsPathPtr->fsRecPtr = srcFsPathPtr->fsRecPtr;
+ copyFsPathPtr->filesystemEpoch = srcFsPathPtr->filesystemEpoch;
+ if (copyFsPathPtr->fsRecPtr != NULL) {
+ copyFsPathPtr->fsRecPtr->fileRefCount++;
}
- Tcl_MutexUnlock(&obsoleteFsHookMutex);
- return (retVal);
+ copyPtr->typePtr = &tclFsPathType;
}
/*
- *----------------------------------------------------------------------
- *
- * TclOpenFileChannelInsertProc --
+ *---------------------------------------------------------------------------
*
- * Insert the passed procedure pointer at the head of the list of
- * functions which are used during a call to
- * 'Tcl_OpenFileChannel(...)'. The passed function should behave
- * exactly like 'Tcl_OpenFileChannel' when called during that time
- * (see 'Tcl_OpenFileChannel(...)' for more information). The
- * function will be added even if it already in the list.
+ * UpdateStringOfFsPath --
*
+ * Gives an object a valid string rep.
+ *
* Results:
- * Normally TCL_OK; TCL_ERROR if memory for a new node in the list
- * could not be allocated.
+ * None.
*
* Side effects:
- * Memory allocated and modifies the link list for
- * 'Tcl_OpenFileChannel' functions.
+ * Memory may be allocated.
*
- *----------------------------------------------------------------------
+ *---------------------------------------------------------------------------
*/
-int
-TclOpenFileChannelInsertProc(proc)
- TclOpenFileChannelProc_ *proc;
+static void
+UpdateStringOfFsPath(objPtr)
+ register Tcl_Obj *objPtr; /* path obj with string rep to update. */
{
- int retVal = TCL_ERROR;
-
- if (proc != NULL) {
- OpenFileChannelProc *newOpenFileChannelProcPtr;
-
- newOpenFileChannelProcPtr =
- (OpenFileChannelProc *)ckalloc(sizeof(OpenFileChannelProc));
-
- if (newOpenFileChannelProcPtr != NULL) {
- newOpenFileChannelProcPtr->proc = proc;
- Tcl_MutexLock(&obsoleteFsHookMutex);
- newOpenFileChannelProcPtr->nextPtr = openFileChannelProcList;
- openFileChannelProcList = newOpenFileChannelProcPtr;
- Tcl_MutexUnlock(&obsoleteFsHookMutex);
-
- retVal = TCL_OK;
- }
+ register FsPath* fsPathPtr = (FsPath*) PATHOBJ(objPtr);
+ CONST char *cwdStr;
+ int cwdLen;
+ Tcl_Obj *copy;
+
+ if (PATHFLAGS(objPtr) == 0 || fsPathPtr->cwdPtr == NULL) {
+ panic("Called UpdateStringOfFsPath with invalid object");
}
-
- return (retVal);
+
+ copy = Tcl_DuplicateObj(fsPathPtr->cwdPtr);
+ Tcl_IncrRefCount(copy);
+
+ cwdStr = Tcl_GetStringFromObj(copy, &cwdLen);
+ /*
+ * Should we perhaps use 'Tcl_FSPathSeparator'?
+ * But then what about the Windows special case?
+ * Perhaps we should just check if cwd is a root volume.
+ * We should never get cwdLen == 0 in this code path.
+ */
+ switch (tclPlatform) {
+ case TCL_PLATFORM_UNIX:
+ if (cwdStr[cwdLen-1] != '/') {
+ Tcl_AppendToObj(copy, "/", 1);
+ cwdLen++;
+ }
+ break;
+ case TCL_PLATFORM_WINDOWS:
+ /*
+ * We need the extra 'cwdLen != 2', and ':' checks because
+ * a volume relative path doesn't get a '/'. For example
+ * 'glob C:*cat*.exe' will return 'C:cat32.exe'
+ */
+ if (cwdStr[cwdLen-1] != '/'
+ && cwdStr[cwdLen-1] != '\\') {
+ if (cwdLen != 2 || cwdStr[1] != ':') {
+ Tcl_AppendToObj(copy, "/", 1);
+ cwdLen++;
+ }
+ }
+ break;
+ case TCL_PLATFORM_MAC:
+ if (cwdStr[cwdLen-1] != ':') {
+ Tcl_AppendToObj(copy, ":", 1);
+ cwdLen++;
+ }
+ break;
+ }
+ Tcl_AppendObjToObj(copy, fsPathPtr->normPathPtr);
+ objPtr->bytes = Tcl_GetStringFromObj(copy, &cwdLen);
+ objPtr->length = cwdLen;
+ copy->bytes = tclEmptyStringRep;
+ copy->length = 0;
+ Tcl_DecrRefCount(copy);
}
/*
- *----------------------------------------------------------------------
+ *---------------------------------------------------------------------------
*
- * TclOpenFileChannelDeleteProc --
+ * NativePathInFilesystem --
*
- * Removed the passed function pointer from the list of
- * 'Tcl_OpenFileChannel' functions. Ensures that the built-in
- * open file channel function is not removable.
+ * Any path object is acceptable to the native filesystem, by
+ * default (we will throw errors when illegal paths are actually
+ * tried to be used).
+ *
+ * However, this behavior means the native filesystem must be
+ * the last filesystem in the lookup list (otherwise it will
+ * claim all files belong to it, and other filesystems will
+ * never get a look in).
*
* Results:
- * TCL_OK if the procedure pointer was successfully removed,
- * TCL_ERROR otherwise.
+ * TCL_OK, to indicate 'yes', -1 to indicate no.
*
* Side effects:
- * Memory is deallocated and the respective list updated.
+ * None.
*
- *----------------------------------------------------------------------
+ *---------------------------------------------------------------------------
*/
-
-int
-TclOpenFileChannelDeleteProc(proc)
- TclOpenFileChannelProc_ *proc;
+int
+NativePathInFilesystem(pathPtr, clientDataPtr)
+ Tcl_Obj *pathPtr;
+ ClientData *clientDataPtr;
{
- int retVal = TCL_ERROR;
- OpenFileChannelProc *tmpOpenFileChannelProcPtr = openFileChannelProcList;
- OpenFileChannelProc *prevOpenFileChannelProcPtr = NULL;
-
- /*
- * Traverse the 'openFileChannelProcList' looking for the particular
- * node whose 'proc' member matches 'proc' and remove that one from
- * the list.
+ /*
+ * A special case is required to handle the empty path "".
+ * This is a valid path (i.e. the user should be able
+ * to do 'file exists ""' without throwing an error), but
+ * equally the path doesn't exist. Those are the semantics
+ * of Tcl (at present anyway), so we have to abide by them
+ * here.
*/
-
- Tcl_MutexLock(&obsoleteFsHookMutex);
- tmpOpenFileChannelProcPtr = openFileChannelProcList;
- while ((retVal == TCL_ERROR) &&
- (tmpOpenFileChannelProcPtr != NULL)) {
- if (tmpOpenFileChannelProcPtr->proc == proc) {
- if (prevOpenFileChannelProcPtr == NULL) {
- openFileChannelProcList = tmpOpenFileChannelProcPtr->nextPtr;
- } else {
- prevOpenFileChannelProcPtr->nextPtr =
- tmpOpenFileChannelProcPtr->nextPtr;
- }
-
- ckfree((char *)tmpOpenFileChannelProcPtr);
-
- retVal = TCL_OK;
- } else {
- prevOpenFileChannelProcPtr = tmpOpenFileChannelProcPtr;
- tmpOpenFileChannelProcPtr = tmpOpenFileChannelProcPtr->nextPtr;
+ if (pathPtr->typePtr == &tclFsPathType) {
+ if (pathPtr->bytes != NULL && pathPtr->bytes[0] == '\0') {
+ /* We reject the empty path "" */
+ return -1;
+ }
+ /* Otherwise there is no way this path can be empty */
+ } else {
+ /*
+ * It is somewhat unusual to reach this code path without
+ * the object being of tclFsPathType. However, we do
+ * our best to deal with the situation.
+ */
+ int len;
+ Tcl_GetStringFromObj(pathPtr,&len);
+ if (len == 0) {
+ /* We reject the empty path "" */
+ return -1;
}
}
- Tcl_MutexUnlock(&obsoleteFsHookMutex);
-
- return (retVal);
+ /*
+ * Path is of correct type, or is of non-zero length,
+ * so we accept it.
+ */
+ return TCL_OK;
}
-#endif /* USE_OBSOLETE_FS_HOOKS */