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authorvincentdarley <vincentdarley>2004-01-21 19:59:32 (GMT)
committervincentdarley <vincentdarley>2004-01-21 19:59:32 (GMT)
commitaa7a81aef5d2a5e07732a9d10432071098bbe532 (patch)
tree0ffe5e984dd325a6bea1e24606e505aa4f37574b /mac
parent255a92739ba23b8db77bffe62d4f6e3ef06d099f (diff)
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filesystem optimisation -- Three main issues accomplished: (1) cleaned up variable names in
Diffstat (limited to 'mac')
-rw-r--r--mac/tclMacFile.c85
1 files changed, 66 insertions, 19 deletions
diff --git a/mac/tclMacFile.c b/mac/tclMacFile.c
index be89237..1c1279d 100644
--- a/mac/tclMacFile.c
+++ b/mac/tclMacFile.c
@@ -10,7 +10,7 @@
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclMacFile.c,v 1.28 2003/10/13 16:48:07 vincentdarley Exp $
+ * RCS: @(#) $Id: tclMacFile.c,v 1.29 2004/01/21 19:59:33 vincentdarley Exp $
*/
/*
@@ -583,11 +583,73 @@ TclpObjChdir(pathPtr)
}
/*
+ *---------------------------------------------------------------------------
+ *
+ * TclpGetNativeCwd --
+ *
+ * This function replaces the library version of getcwd().
+ *
+ * Results:
+ * The input and output are filesystem paths in native form. The
+ * result is either the given clientData, if the working directory
+ * hasn't changed, or a new clientData (owned by our caller),
+ * giving the new native path, or NULL if the current directory
+ * could not be determined. If NULL is returned, the caller can
+ * examine the standard posix error codes to determine the cause of
+ * the problem.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+ClientData
+TclpGetNativeCwd(clientData)
+ ClientData clientData;
+{
+ FSSpec theSpec;
+ int length;
+ Handle pathHandle = NULL;
+ OSErr err;
+
+ err = FSpGetDefaultDir(&theSpec);
+ if (err != noErr) {
+ errno = TclMacOSErrorToPosixError(err);
+ return NULL;
+ }
+ err = FSpPathFromLocation(&theSpec, &length, &pathHandle);
+ if (err != noErr) {
+ errno = TclMacOSErrorToPosixError(err);
+ return NULL;
+ }
+
+ if ((clientData != NULL)
+ && strcmp((CONST char*)(*pathHandle), (CONST char*)clientData) == 0) {
+ /* No change to pwd */
+ DisposeHandle(pathHandle);
+ return clientData;
+ } else {
+ char *newCd;
+
+ HLock(pathHandle);
+ newCd = (char *) ckalloc((unsigned)
+ (strlen((CONST char*)(*pathHandle)) + 1));
+ strcpy(newCd, (CONST char*)(*pathHandle));
+ HUnlock(pathHandle);
+ DisposeHandle(pathHandle);
+ return (ClientData) newCd;
+ }
+}
+
+/*
*----------------------------------------------------------------------
*
- * TclpObjGetCwd --
+ * TclpGetCwd --
*
* This function replaces the library version of getcwd().
+ * (Obsolete function, only retained for old extensions which
+ * may call it directly).
*
* Results:
* The result is a pointer to a string specifying the current
@@ -603,21 +665,6 @@ TclpObjChdir(pathPtr)
*----------------------------------------------------------------------
*/
-Tcl_Obj*
-TclpObjGetCwd(interp)
- Tcl_Interp *interp;
-{
- Tcl_DString ds;
- if (TclpGetCwd(interp, &ds) != NULL) {
- Tcl_Obj *cwdPtr = Tcl_NewStringObj(Tcl_DStringValue(&ds), -1);
- Tcl_IncrRefCount(cwdPtr);
- Tcl_DStringFree(&ds);
- return cwdPtr;
- } else {
- return NULL;
- }
-}
-
CONST char *
TclpGetCwd(
Tcl_Interp *interp, /* If non-NULL, used for error reporting. */
@@ -1242,8 +1289,8 @@ TclpObjLink(pathPtr, toPtr, linkAction)
*---------------------------------------------------------------------------
*/
Tcl_Obj*
-TclpFilesystemPathType(pathObjPtr)
- Tcl_Obj* pathObjPtr;
+TclpFilesystemPathType(pathPtr)
+ Tcl_Obj* pathPtr;
{
/* All native paths are of the same type */
return NULL;