diff options
Diffstat (limited to 'generic/tclPathObj.c')
-rw-r--r-- | generic/tclPathObj.c | 544 |
1 files changed, 218 insertions, 326 deletions
diff --git a/generic/tclPathObj.c b/generic/tclPathObj.c index b6f3205..fe6063f 100644 --- a/generic/tclPathObj.c +++ b/generic/tclPathObj.c @@ -27,13 +27,15 @@ static int SetFsPathFromAny(Tcl_Interp *interp, Tcl_Obj *pathPtr); static int FindSplitPos(const char *path, int separator); static int IsSeparatorOrNull(int ch); static Tcl_Obj * GetExtension(Tcl_Obj *pathPtr); +static int MakePathFromNormalized(Tcl_Interp *interp, + Tcl_Obj *pathPtr); /* * Define the 'path' object type, which Tcl uses to represent file paths * internally. */ -static Tcl_ObjType tclFsPathType = { +static const Tcl_ObjType tclFsPathType = { "path", /* name */ FreeFsPathInternalRep, /* freeIntRepProc */ DupFsPathInternalRep, /* dupIntRepProc */ @@ -92,9 +94,7 @@ typedef struct FsPath { * 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. */ + const Tcl_Filesystem *fsPtr;/* The Tcl_Filesystem that claims this path */ } FsPath; /* @@ -109,9 +109,9 @@ typedef struct FsPath { * fields. */ -#define PATHOBJ(pathPtr) ((FsPath *) (pathPtr)->internalRep.otherValuePtr) +#define PATHOBJ(pathPtr) ((FsPath *) (pathPtr)->internalRep.twoPtrValue.ptr1) #define SETPATHOBJ(pathPtr,fsPathPtr) \ - ((pathPtr)->internalRep.otherValuePtr = (void *) (fsPathPtr)) + ((pathPtr)->internalRep.twoPtrValue.ptr1 = (void *) (fsPathPtr)) #define PATHFLAGS(pathPtr) (PATHOBJ(pathPtr)->flags) /* @@ -152,14 +152,8 @@ typedef struct FsPath { Tcl_Obj * TclFSNormalizeAbsolutePath( Tcl_Interp *interp, /* Interpreter to use */ - Tcl_Obj *pathPtr, /* Absolute path to normalize */ - ClientData *clientDataPtr) /* If non-NULL, then may be set to the - * fs-specific clientData for this path. This - * will happen when that extra information can - * be calculated efficiently as a side-effect - * of normalization. */ + Tcl_Obj *pathPtr) /* Absolute path to normalize */ { - ClientData clientData = NULL; const char *dirSep, *oldDirSep; int first = 1; /* Set to zero once we've passed the first * directory separator - we can't use '..' to @@ -237,7 +231,7 @@ TclFSNormalizeAbsolutePath( retVal = Tcl_NewStringObj(path, dirSep - path); Tcl_IncrRefCount(retVal); } - (void) Tcl_GetStringFromObj(retVal, &curLen); + Tcl_GetStringFromObj(retVal, &curLen); if (curLen == 0) { Tcl_AppendToObj(retVal, dirSep, 1); } @@ -249,7 +243,7 @@ TclFSNormalizeAbsolutePath( continue; } if (dirSep[2] == '.' && IsSeparatorOrNull(dirSep[3])) { - Tcl_Obj *link; + Tcl_Obj *linkObj; int curLen; char *linkStr; @@ -263,12 +257,12 @@ TclFSNormalizeAbsolutePath( retVal = Tcl_NewStringObj(path, dirSep - path); Tcl_IncrRefCount(retVal); } - (void) Tcl_GetStringFromObj(retVal, &curLen); + Tcl_GetStringFromObj(retVal, &curLen); if (curLen == 0) { Tcl_AppendToObj(retVal, dirSep, 1); } if (!first || (tclPlatform == TCL_PLATFORM_UNIX)) { - link = Tcl_FSLink(retVal, NULL, 0); + linkObj = Tcl_FSLink(retVal, NULL, 0); /* Safety check in case driver caused sharing */ if (Tcl_IsShared(retVal)) { @@ -277,15 +271,16 @@ TclFSNormalizeAbsolutePath( Tcl_IncrRefCount(retVal); } - if (link != NULL) { + if (linkObj != NULL) { /* * Got a link. Need to check if the link is relative * or absolute, for those platforms where relative * links exist. */ - if (tclPlatform != TCL_PLATFORM_WINDOWS && - Tcl_FSGetPathType(link) == TCL_PATH_RELATIVE) { + if (tclPlatform != TCL_PLATFORM_WINDOWS + && Tcl_FSGetPathType(linkObj) + == TCL_PATH_RELATIVE) { /* * We need to follow this link which is relative * to retVal's directory. This means concatenating @@ -306,8 +301,8 @@ TclFSNormalizeAbsolutePath( */ Tcl_SetObjLength(retVal, curLen+1); - Tcl_AppendObjToObj(retVal, link); - TclDecrRefCount(link); + Tcl_AppendObjToObj(retVal, linkObj); + TclDecrRefCount(linkObj); linkStr = Tcl_GetStringFromObj(retVal, &curLen); } else { /* @@ -315,11 +310,11 @@ TclFSNormalizeAbsolutePath( */ TclDecrRefCount(retVal); - if (Tcl_IsShared(link)) { - retVal = Tcl_DuplicateObj(link); - TclDecrRefCount(link); + if (Tcl_IsShared(linkObj)) { + retVal = Tcl_DuplicateObj(linkObj); + TclDecrRefCount(linkObj); } else { - retVal = link; + retVal = linkObj; } linkStr = Tcl_GetStringFromObj(retVal, &curLen); @@ -342,8 +337,8 @@ TclFSNormalizeAbsolutePath( } /* - * Either way, we now remove the last path element. - * (but not the first character of the path) + * Either way, we now remove the last path element (but + * not the first character of the path). */ while (--curLen >= 0) { @@ -404,7 +399,7 @@ TclFSNormalizeAbsolutePath( } /* - * Ensure a windows drive like C:/ has a trailing separator + * Ensure a windows drive like C:/ has a trailing separator. */ if (tclPlatform == TCL_PLATFORM_WINDOWS) { @@ -432,17 +427,14 @@ TclFSNormalizeAbsolutePath( * for normalizing a path. */ - TclFSNormalizeToUniquePath(interp, retVal, 0, &clientData); + TclFSNormalizeToUniquePath(interp, retVal, 0); /* * Since we know it is a normalized path, we can actually convert this * object into an FsPath for greater efficiency */ - TclFSMakePathFromNormalized(interp, retVal, clientData); - if (clientDataPtr != NULL) { - *clientDataPtr = clientData; - } + MakePathFromNormalized(interp, retVal); /* * This has a refCount of 1 for the caller, unlike many Tcl_Obj APIs. @@ -502,7 +494,7 @@ Tcl_FSGetPathType( Tcl_PathType TclFSGetPathType( Tcl_Obj *pathPtr, - Tcl_Filesystem **filesystemPtrPtr, + const Tcl_Filesystem **filesystemPtrPtr, int *driveNameLengthPtr) { FsPath *fsPathPtr; @@ -520,7 +512,7 @@ TclFSGetPathType( if (PATHFLAGS(pathPtr) == 0) { /* The path is not absolute... */ -#ifdef __WIN32__ +#ifdef _WIN32 /* ... on Windows we must make another call to determine whether * it's relative or volumerelative [Bug 2571597]. */ return TclGetPathType(pathPtr, filesystemPtrPtr, driveNameLengthPtr, @@ -574,8 +566,7 @@ TclPathPart( if (pathPtr->typePtr == &tclFsPathType) { FsPath *fsPathPtr = PATHOBJ(pathPtr); - if (TclFSEpochOk(fsPathPtr->filesystemEpoch) - && (PATHFLAGS(pathPtr) != 0)) { + if (PATHFLAGS(pathPtr) != 0) { switch (portion) { case TCL_PATH_DIRNAME: { /* @@ -837,44 +828,39 @@ Tcl_FSJoinPath( * reference count. */ int elements) /* Number of elements to use (-1 = all) */ { - 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. - */ + Tcl_Obj *copy, *res; + int objc; + Tcl_Obj **objv; - int listTest; - - if (Tcl_ListObjLength(NULL, listObj, &listTest) != TCL_OK) { - return NULL; - } + if (Tcl_ListObjLength(NULL, listObj, &objc) != TCL_OK) { + return NULL; + } - /* - * Correct this if it is too large, otherwise we will waste our time - * joining null elements to the path. - */ + elements = ((elements >= 0) && (elements <= objc)) ? elements : objc; + copy = TclListObjCopy(NULL, listObj); + Tcl_ListObjGetElements(NULL, listObj, &objc, &objv); + res = TclJoinPath(elements, objv); + Tcl_DecrRefCount(copy); + return res; +} - if (elements > listTest) { - elements = listTest; - } - } +Tcl_Obj * +TclJoinPath( + int elements, + Tcl_Obj * const objv[]) +{ + Tcl_Obj *res; + int i; + const Tcl_Filesystem *fsPtr = NULL; res = NULL; for (i = 0; i < elements; i++) { - Tcl_Obj *elt, *driveName = NULL; int driveNameLength, strEltLen, length; Tcl_PathType type; char *strElt, *ptr; - - Tcl_ListObjIndex(NULL, listObj, i, &elt); + Tcl_Obj *driveName = NULL; + Tcl_Obj *elt = objv[i]; /* * This is a special case where we can be much more efficient, where @@ -885,17 +871,17 @@ Tcl_FSJoinPath( * could expand that in the future. */ - if ((i == (elements-2)) && (i == 0) && (elt->typePtr == &tclFsPathType) - && !(elt->bytes != NULL && (elt->bytes[0] == '\0'))) { - Tcl_Obj *tail; + if ((i == (elements-2)) && (i == 0) + && (elt->typePtr == &tclFsPathType) + && !((elt->bytes != NULL) && (elt->bytes[0] == '\0'))) { + Tcl_Obj *tailObj = objv[i+1]; - Tcl_ListObjIndex(NULL, listObj, i+1, &tail); - type = TclGetPathType(tail, NULL, NULL, NULL); + type = TclGetPathType(tailObj, NULL, NULL, NULL); if (type == TCL_PATH_RELATIVE) { const char *str; int len; - str = Tcl_GetStringFromObj(tail, &len); + str = Tcl_GetStringFromObj(tailObj, &len); if (len == 0) { /* * This happens if we try to handle the root volume '/'. @@ -943,16 +929,16 @@ Tcl_FSJoinPath( if (res != NULL) { TclDecrRefCount(res); } - return tail; + return tailObj; } else { - const char *str = TclGetString(tail); + const char *str = TclGetString(tailObj); if (tclPlatform == TCL_PLATFORM_WINDOWS) { if (strchr(str, '\\') == NULL) { if (res != NULL) { TclDecrRefCount(res); } - return tail; + return tailObj; } } } @@ -1029,8 +1015,8 @@ Tcl_FSJoinPath( } /* - * This element is just what we want to return already - no - * further manipulation is requred. + * This element is just what we want to return already; no further + * manipulation is requred. */ return elt; @@ -1076,7 +1062,7 @@ Tcl_FSJoinPath( int needsSep = 0; if (fsPtr->filesystemSeparatorProc != NULL) { - Tcl_Obj *sep = (*fsPtr->filesystemSeparatorProc)(res); + Tcl_Obj *sep = fsPtr->filesystemSeparatorProc(res); if (sep != NULL) { separator = TclGetString(sep)[0]; @@ -1091,7 +1077,7 @@ Tcl_FSJoinPath( if (length > 0 && ptr[length -1] != '/') { Tcl_AppendToObj(res, &separator, 1); - length++; + Tcl_GetStringFromObj(res, &length); } Tcl_SetObjLength(res, length + (int) strlen(strElt)); @@ -1170,7 +1156,7 @@ Tcl_FSConvertToPathType( FreeFsPathInternalRep(pathPtr); } - return Tcl_ConvertToType(interp, pathPtr, &tclFsPathType); + return SetFsPathFromAny(interp, pathPtr); /* * We used to have more complex code here: @@ -1278,7 +1264,6 @@ TclNewFSPathObj( { FsPath *fsPathPtr; Tcl_Obj *pathPtr; - ThreadSpecificData *tsdPtr; const char *p; int state = 0, count = 0; @@ -1306,10 +1291,8 @@ TclNewFSPathObj( return pathPtr; } - tsdPtr = TCL_TSD_INIT(&tclFsDataKey); - pathPtr = Tcl_NewObj(); - fsPathPtr = (FsPath *) ckalloc(sizeof(FsPath)); + fsPathPtr = ckalloc(sizeof(FsPath)); /* * Set up the path. @@ -1321,8 +1304,8 @@ TclNewFSPathObj( fsPathPtr->cwdPtr = dirPtr; Tcl_IncrRefCount(dirPtr); fsPathPtr->nativePathPtr = NULL; - fsPathPtr->fsRecPtr = NULL; - fsPathPtr->filesystemEpoch = tsdPtr->filesystemEpoch; + fsPathPtr->fsPtr = NULL; + fsPathPtr->filesystemEpoch = 0; SETPATHOBJ(pathPtr, fsPathPtr); PATHFLAGS(pathPtr) = TCLPATH_APPENDED; @@ -1332,41 +1315,41 @@ TclNewFSPathObj( /* * Look for path components made up of only "." - * This is overly conservative analysis to keep simple. It may - * mark some things as needing more aggressive normalization - * that don't actually need it. No harm done. + * This is overly conservative analysis to keep simple. It may mark some + * things as needing more aggressive normalization that don't actually + * need it. No harm done. */ for (p = addStrRep; len > 0; p++, len--) { - switch (state) { - case 0: /* So far only "." since last dirsep or start */ - switch (*p) { - case '.': - count++; - break; - case '/': - case '\\': - case ':': - if (count) { - PATHFLAGS(pathPtr) |= TCLPATH_NEEDNORM; - len = 0; - } - break; - default: - count = 0; - state = 1; - } - case 1: /* Scanning for next dirsep */ - switch (*p) { - case '/': - case '\\': - case ':': - state = 0; - break; - } - } + switch (state) { + case 0: /* So far only "." since last dirsep or start */ + switch (*p) { + case '.': + count++; + break; + case '/': + case '\\': + case ':': + if (count) { + PATHFLAGS(pathPtr) |= TCLPATH_NEEDNORM; + len = 0; + } + break; + default: + count = 0; + state = 1; + } + case 1: /* Scanning for next dirsep */ + switch (*p) { + case '/': + case '\\': + case ':': + state = 0; + break; + } + } } if (len == 0 && count) { - PATHFLAGS(pathPtr) |= TCLPATH_NEEDNORM; + PATHFLAGS(pathPtr) |= TCLPATH_NEEDNORM; } return pathPtr; @@ -1387,7 +1370,7 @@ AppendPath( * of no evidence that such a foolish thing exists. This solution was * chosen so that "JoinPath" operations that pass through either path * intrep produce the same results; that is, bugward compatibility. If - * we need to fix that bug here, it needs fixing in Tcl_FSJoinPath() too. + * we need to fix that bug here, it needs fixing in TclJoinPath() too. */ bytes = Tcl_GetStringFromObj(tail, &numBytes); if (numBytes == 0) { @@ -1428,77 +1411,12 @@ TclFSMakePathRelative( { int cwdLen, len; const char *tempStr; - ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&tclFsDataKey); if (pathPtr->typePtr == &tclFsPathType) { FsPath *fsPathPtr = PATHOBJ(pathPtr); - if (PATHFLAGS(pathPtr) != 0 - && fsPathPtr->cwdPtr == cwdPtr) { - pathPtr = fsPathPtr->normPathPtr; - - /* TODO: Determine how much, if any, of this forcing - * the relative path tail into the "path" Tcl_ObjType - * with a recorded cwdPtr context has any actual value. - * - * Nothing is getting cached. Not normPathPtr, not nativePathPtr, - * nor fsRecPtr, so storing the cwdPtr context against which such - * cached values might later be validated appears to be of no - * value. Take that away, and all this code is just a mildly - * optimized equivalent of a call to SetFsPathFromAny(). That - * optimization may have some value, *if* these value in fact - * get used as "path" values before used as something else. - * If not, though, whatever cost we pay below to convert to - * one of the "path" intreps is just a waste, it seems. The - * usual convention in the core is to delay ObjType conversion - * until it is needed and demanded, and I don't see why this - * section of code should be an exception to that. Leaving it - * in place for the rest of the 8.5.* releases just for sake - * of stability. - */ - - /* - * Free old representation. - */ - - if (pathPtr->typePtr != NULL) { - if (pathPtr->bytes == NULL) { - if (pathPtr->typePtr->updateStringProc == NULL) { - if (interp != NULL) { - Tcl_ResetResult(interp); - Tcl_AppendResult(interp, "can't find object" - "string representation", NULL); - } - return NULL; - } - pathPtr->typePtr->updateStringProc(pathPtr); - } - TclFreeIntRep(pathPtr); - } - - /* - * Now pathPtr is a string object. - */ - - fsPathPtr = (FsPath *) ckalloc(sizeof(FsPath)); - - /* - * Circular reference, by design. - */ - - fsPathPtr->translatedPathPtr = pathPtr; - fsPathPtr->normPathPtr = NULL; - fsPathPtr->cwdPtr = cwdPtr; - Tcl_IncrRefCount(cwdPtr); - fsPathPtr->nativePathPtr = NULL; - fsPathPtr->fsRecPtr = NULL; - fsPathPtr->filesystemEpoch = tsdPtr->filesystemEpoch; - - SETPATHOBJ(pathPtr, fsPathPtr); - PATHFLAGS(pathPtr) = 0; - pathPtr->typePtr = &tclFsPathType; - - return pathPtr; + if (PATHFLAGS(pathPtr) != 0 && fsPathPtr->cwdPtr == cwdPtr) { + return fsPathPtr->normPathPtr; } } @@ -1541,7 +1459,7 @@ TclFSMakePathRelative( /* *--------------------------------------------------------------------------- * - * TclFSMakePathFromNormalized -- + * MakePathFromNormalized -- * * Like SetFsPathFromAny, but assumes the given object is an absolute * normalized path. Only for internal use. @@ -1555,15 +1473,12 @@ TclFSMakePathRelative( *--------------------------------------------------------------------------- */ -int -TclFSMakePathFromNormalized( +static int +MakePathFromNormalized( Tcl_Interp *interp, /* Used for error reporting if not NULL. */ - Tcl_Obj *pathPtr, /* The object to convert. */ - ClientData nativeRep) /* The native rep for the object, if known - * else NULL. */ + Tcl_Obj *pathPtr) /* The object to convert. */ { FsPath *fsPathPtr; - ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&tclFsDataKey); if (pathPtr->typePtr == &tclFsPathType) { return TCL_OK; @@ -1577,9 +1492,10 @@ TclFSMakePathFromNormalized( if (pathPtr->bytes == NULL) { if (pathPtr->typePtr->updateStringProc == NULL) { if (interp != NULL) { - Tcl_ResetResult(interp); - Tcl_AppendResult(interp, "can't find object" - "string representation", NULL); + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "can't find object string representation", -1)); + Tcl_SetErrorCode(interp, "TCL", "VALUE", "PATH", "WTF", + NULL); } return TCL_ERROR; } @@ -1588,7 +1504,7 @@ TclFSMakePathFromNormalized( TclFreeIntRep(pathPtr); } - fsPathPtr = (FsPath *) ckalloc(sizeof(FsPath)); + fsPathPtr = ckalloc(sizeof(FsPath)); /* * It's a pure normalized absolute path. @@ -1602,9 +1518,10 @@ TclFSMakePathFromNormalized( fsPathPtr->normPathPtr = pathPtr; fsPathPtr->cwdPtr = NULL; - fsPathPtr->nativePathPtr = nativeRep; - fsPathPtr->fsRecPtr = NULL; - fsPathPtr->filesystemEpoch = tsdPtr->filesystemEpoch; + fsPathPtr->nativePathPtr = NULL; + fsPathPtr->fsPtr = NULL; + /* Remember the epoch under which we decided pathPtr was normalized */ + fsPathPtr->filesystemEpoch = TclFSEpoch(); SETPATHOBJ(pathPtr, fsPathPtr); PATHFLAGS(pathPtr) = 0; @@ -1640,17 +1557,16 @@ TclFSMakePathFromNormalized( Tcl_Obj * Tcl_FSNewNativePath( - Tcl_Filesystem *fromFilesystem, + const Tcl_Filesystem *fromFilesystem, ClientData clientData) { - Tcl_Obj *pathPtr; + Tcl_Obj *pathPtr = NULL; FsPath *fsPathPtr; - FilesystemRecord *fsFromPtr; - ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&tclFsDataKey); - pathPtr = TclFSInternalToNormalized(fromFilesystem, clientData, - &fsFromPtr); + if (fromFilesystem->internalToNormalizedProc != NULL) { + pathPtr = (*fromFilesystem->internalToNormalizedProc)(clientData); + } if (pathPtr == NULL) { return NULL; } @@ -1670,7 +1586,7 @@ Tcl_FSNewNativePath( TclFreeIntRep(pathPtr); } - fsPathPtr = (FsPath *) ckalloc(sizeof(FsPath)); + fsPathPtr = ckalloc(sizeof(FsPath)); fsPathPtr->translatedPathPtr = NULL; @@ -1681,9 +1597,8 @@ Tcl_FSNewNativePath( fsPathPtr->normPathPtr = pathPtr; fsPathPtr->cwdPtr = NULL; fsPathPtr->nativePathPtr = clientData; - fsPathPtr->fsRecPtr = fsFromPtr; - fsPathPtr->fsRecPtr->fileRefCount++; - fsPathPtr->filesystemEpoch = tsdPtr->filesystemEpoch; + fsPathPtr->fsPtr = fromFilesystem; + fsPathPtr->filesystemEpoch = TclFSEpoch(); SETPATHOBJ(pathPtr, fsPathPtr); PATHFLAGS(pathPtr) = 0; @@ -1739,8 +1654,14 @@ Tcl_FSGetTranslatedPath( } retObj = Tcl_FSJoinToPath(translatedCwdPtr, 1, - &(srcFsPathPtr->normPathPtr)); + &srcFsPathPtr->normPathPtr); srcFsPathPtr->translatedPathPtr = retObj; + if (translatedCwdPtr->typePtr == &tclFsPathType) { + srcFsPathPtr->filesystemEpoch + = PATHOBJ(translatedCwdPtr)->filesystemEpoch; + } else { + srcFsPathPtr->filesystemEpoch = 0; + } Tcl_IncrRefCount(retObj); Tcl_DecrRefCount(translatedCwdPtr); } else { @@ -1795,7 +1716,7 @@ Tcl_FSGetTranslatedStringPath( if (transPtr != NULL) { int len; const char *orig = Tcl_GetStringFromObj(transPtr, &len); - char *result = (char *) ckalloc((unsigned) len+1); + char *result = ckalloc(len+1); memcpy(result, orig, (size_t) len+1); TclDecrRefCount(transPtr); @@ -1843,8 +1764,7 @@ Tcl_FSGetNormalizedPath( */ Tcl_Obj *dir, *copy; - int cwdLen, pathType; - ClientData clientData = NULL; + int tailLen, cwdLen, pathType; pathType = Tcl_FSGetPathType(fsPathPtr->cwdPtr); dir = Tcl_FSGetNormalizedPath(interp, fsPathPtr->cwdPtr); @@ -1856,7 +1776,12 @@ Tcl_FSGetNormalizedPath( UpdateStringOfFsPath(pathPtr); } - copy = AppendPath(dir, fsPathPtr->normPathPtr); + Tcl_GetStringFromObj(fsPathPtr->normPathPtr, &tailLen); + if (tailLen) { + copy = AppendPath(dir, fsPathPtr->normPathPtr); + } else { + copy = Tcl_DuplicateObj(dir); + } Tcl_IncrRefCount(dir); Tcl_IncrRefCount(copy); @@ -1871,29 +1796,28 @@ Tcl_FSGetNormalizedPath( if (PATHFLAGS(pathPtr) & TCLPATH_NEEDNORM) { /* - * If the "tail" part has components (like /../) that cause - * the combined path to need more complete normalizing, - * call on the more powerful routine to accomplish that so - * we avoid [Bug 2385549] ... + * If the "tail" part has components (like /../) that cause the + * combined path to need more complete normalizing, call on the + * more powerful routine to accomplish that so we avoid [Bug + * 2385549] ... */ - Tcl_Obj *newCopy = TclFSNormalizeAbsolutePath(interp, copy, NULL); + Tcl_Obj *newCopy = TclFSNormalizeAbsolutePath(interp, copy); + Tcl_DecrRefCount(copy); copy = newCopy; } else { /* - * ... but in most cases where we join a trouble free tail - * to a normalized head, we can more efficiently normalize the - * combined path by passing over only the unnormalized tail - * portion. When this is sufficient, prior developers claim - * 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. + * ... but in most cases where we join a trouble free tail to a + * normalized head, we can more efficiently normalize the combined + * path by passing over only the unnormalized tail portion. When + * this is sufficient, prior developers claim 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. */ - TclFSNormalizeToUniquePath(interp, copy, cwdLen-1, - (fsPathPtr->nativePathPtr == NULL ? &clientData : NULL)); + TclFSNormalizeToUniquePath(interp, copy, cwdLen-1); } /* Now we need to construct the new path object. */ @@ -1903,11 +1827,11 @@ Tcl_FSGetNormalizedPath( /* * NOTE: here we are (dangerously?) assuming that origDir points - * to a Tcl_Obj with Tcl_ObjType == &tclFsPathType . The + * to a Tcl_Obj with Tcl_ObjType == &tclFsPathType. The * pathType = Tcl_FSGetPathType(fsPathPtr->cwdPtr); - * above that set the pathType value should have established - * that, but it's far less clear on what basis we know there's - * been no shimmering since then. + * above that set the pathType value should have established that, + * but it's far less clear on what basis we know there's been no + * shimmering since then. */ FsPath *origDirFsPathPtr = PATHOBJ(origDir); @@ -1936,15 +1860,6 @@ Tcl_FSGetNormalizedPath( TclDecrRefCount(dir); } - if (clientData != NULL) { - /* - * This may be unnecessary. It appears that the - * TclFSNormalizeToUniquePath call above should have already - * set this up. Not changing out of fear of the unknown. - */ - - fsPathPtr->nativePathPtr = clientData; - } PATHFLAGS(pathPtr) = 0; } @@ -1958,14 +1873,13 @@ Tcl_FSGetNormalizedPath( UpdateStringOfFsPath(pathPtr); } FreeFsPathInternalRep(pathPtr); - if (Tcl_ConvertToType(interp, pathPtr, &tclFsPathType) != TCL_OK) { + if (SetFsPathFromAny(interp, pathPtr) != TCL_OK) { return NULL; } fsPathPtr = PATHOBJ(pathPtr); } else if (fsPathPtr->normPathPtr == NULL) { int cwdLen; Tcl_Obj *copy; - ClientData clientData = NULL; copy = AppendPath(fsPathPtr->cwdPtr, pathPtr); @@ -1977,17 +1891,12 @@ Tcl_FSGetNormalizedPath( * of the previously normalized 'dir'. This should be much faster! */ - TclFSNormalizeToUniquePath(interp, copy, cwdLen-1, - (fsPathPtr->nativePathPtr == NULL ? &clientData : NULL)); + TclFSNormalizeToUniquePath(interp, copy, cwdLen-1); fsPathPtr->normPathPtr = copy; Tcl_IncrRefCount(fsPathPtr->normPathPtr); - if (clientData != NULL) { - fsPathPtr->nativePathPtr = clientData; - } } } if (fsPathPtr->normPathPtr == NULL) { - ClientData clientData = NULL; Tcl_Obj *useThisCwd = NULL; int pureNormalized = 1; @@ -2010,11 +1919,11 @@ Tcl_FSGetNormalizedPath( if (path[0] == '\0') { /* - * Special handling for the empty string value. This one is - * very weird with [file normalize {}] => {}. (The reasoning - * supporting this is unknown to DGP, but he fears changing it.) - * Attempt here to keep the expectations of other parts of - * Tcl_Filesystem code about state of the FsPath fields satisfied. + * Special handling for the empty string value. This one is very + * weird with [file normalize {}] => {}. (The reasoning supporting + * this is unknown to DGP, but he fears changing it.) Attempt here + * to keep the expectations of other parts of Tcl_Filesystem code + * about state of the FsPath fields satisfied. * * In particular, capture the cwd value and save so it can be * stored in the cwdPtr field below. @@ -2047,7 +1956,7 @@ Tcl_FSGetNormalizedPath( /* * We have a refCount on the cwd. */ -#ifdef __WIN32__ +#ifdef _WIN32 } else if (type == TCL_PATH_VOLUME_RELATIVE) { /* * Only Windows has volume-relative paths. @@ -2060,7 +1969,7 @@ Tcl_FSGetNormalizedPath( return NULL; } pureNormalized = 0; -#endif /* __WIN32__ */ +#endif /* _WIN32 */ } } @@ -2069,12 +1978,7 @@ Tcl_FSGetNormalizedPath( */ fsPathPtr->normPathPtr = TclFSNormalizeAbsolutePath(interp, - absolutePath, - (fsPathPtr->nativePathPtr == NULL ? &clientData : NULL)); - if (0 && (clientData != NULL)) { - fsPathPtr->nativePathPtr = - (*fsPathPtr->fsRecPtr->fsPtr->dupInternalRepProc)(clientData); - } + absolutePath); /* * Check if path is pure normalized (this can only be the case if it @@ -2082,8 +1986,12 @@ Tcl_FSGetNormalizedPath( */ if (pureNormalized) { - if (!strcmp(TclGetString(fsPathPtr->normPathPtr), - TclGetString(pathPtr))) { + int normPathLen, pathLen; + const char *normPath; + + path = TclGetStringFromObj(pathPtr, &pathLen); + normPath = TclGetStringFromObj(fsPathPtr->normPathPtr, &normPathLen); + if ((pathLen == normPathLen) && !memcmp(path, normPath, pathLen)) { /* * The path was already normalized. Get rid of the duplicate. */ @@ -2138,7 +2046,7 @@ Tcl_FSGetNormalizedPath( ClientData Tcl_FSGetInternalRep( Tcl_Obj *pathPtr, - Tcl_Filesystem *fsPtr) + const Tcl_Filesystem *fsPtr) { FsPath *srcFsPathPtr; @@ -2161,7 +2069,7 @@ Tcl_FSGetInternalRep( * not easily achievable with the current implementation. */ - if (srcFsPathPtr->fsRecPtr == NULL) { + if (srcFsPathPtr->fsPtr == NULL) { /* * This only usually happens in wrappers like TclpStat which create a * string object and pass it to TclpObjStat. Code which calls the @@ -2181,7 +2089,7 @@ Tcl_FSGetInternalRep( */ srcFsPathPtr = PATHOBJ(pathPtr); - if (srcFsPathPtr->fsRecPtr == NULL) { + if (srcFsPathPtr->fsPtr == NULL) { return NULL; } } @@ -2193,7 +2101,7 @@ Tcl_FSGetInternalRep( * for this is we ask what filesystem this path belongs to. */ - if (fsPtr != srcFsPathPtr->fsRecPtr->fsPtr) { + if (fsPtr != srcFsPathPtr->fsPtr) { const Tcl_Filesystem *actualFs = Tcl_FSGetFileSystemForPath(pathPtr); if (actualFs == fsPtr) { @@ -2206,12 +2114,12 @@ Tcl_FSGetInternalRep( Tcl_FSCreateInternalRepProc *proc; char *nativePathPtr; - proc = srcFsPathPtr->fsRecPtr->fsPtr->createInternalRepProc; + proc = srcFsPathPtr->fsPtr->createInternalRepProc; if (proc == NULL) { return NULL; } - nativePathPtr = (*proc)(pathPtr); + nativePathPtr = proc(pathPtr); srcFsPathPtr = PATHOBJ(pathPtr); srcFsPathPtr->nativePathPtr = nativePathPtr; } @@ -2240,7 +2148,7 @@ Tcl_FSGetInternalRep( int TclFSEnsureEpochOk( Tcl_Obj *pathPtr, - Tcl_Filesystem **fsPtrPtr) + const Tcl_Filesystem **fsPtrPtr) { FsPath *srcFsPathPtr; @@ -2274,8 +2182,8 @@ TclFSEnsureEpochOk( * Check whether the object is already assigned to a fs. */ - if (srcFsPathPtr->fsRecPtr != NULL) { - *fsPtrPtr = srcFsPathPtr->fsRecPtr->fsPtr; + if (srcFsPathPtr->fsPtr != NULL) { + *fsPtrPtr = srcFsPathPtr->fsPtr; } return TCL_OK; } @@ -2299,10 +2207,9 @@ TclFSEnsureEpochOk( void TclFSSetPathDetails( Tcl_Obj *pathPtr, - FilesystemRecord *fsRecPtr, + const Tcl_Filesystem *fsPtr, ClientData clientData) { - ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&tclFsDataKey); FsPath *srcFsPathPtr; /* @@ -2316,10 +2223,9 @@ TclFSSetPathDetails( } srcFsPathPtr = PATHOBJ(pathPtr); - srcFsPathPtr->fsRecPtr = fsRecPtr; + srcFsPathPtr->fsPtr = fsPtr; srcFsPathPtr->nativePathPtr = clientData; - srcFsPathPtr->filesystemEpoch = tsdPtr->filesystemEpoch; - fsRecPtr->fileRefCount++; + srcFsPathPtr->filesystemEpoch = TclFSEpoch(); } /* @@ -2344,7 +2250,7 @@ Tcl_FSEqualPaths( Tcl_Obj *firstPtr, Tcl_Obj *secondPtr) { - char *firstStr, *secondStr; + const char *firstStr, *secondStr; int firstLen, secondLen, tempErrno; if (firstPtr == secondPtr) { @@ -2354,9 +2260,9 @@ Tcl_FSEqualPaths( if (firstPtr == NULL || secondPtr == NULL) { return 0; } - firstStr = Tcl_GetStringFromObj(firstPtr, &firstLen); - secondStr = Tcl_GetStringFromObj(secondPtr, &secondLen); - if ((firstLen == secondLen) && (strcmp(firstStr, secondStr) == 0)) { + firstStr = TclGetStringFromObj(firstPtr, &firstLen); + secondStr = TclGetStringFromObj(secondPtr, &secondLen); + if ((firstLen == secondLen) && !memcmp(firstStr, secondStr, firstLen)) { return 1; } @@ -2374,9 +2280,9 @@ Tcl_FSEqualPaths( return 0; } - firstStr = Tcl_GetStringFromObj(firstPtr, &firstLen); - secondStr = Tcl_GetStringFromObj(secondPtr, &secondLen); - return (firstLen == secondLen) && (strcmp(firstStr, secondStr) == 0); + firstStr = TclGetStringFromObj(firstPtr, &firstLen); + secondStr = TclGetStringFromObj(secondPtr, &secondLen); + return ((firstLen == secondLen) && !memcmp(firstStr, secondStr, firstLen)); } /* @@ -2408,7 +2314,6 @@ SetFsPathFromAny( FsPath *fsPathPtr; Tcl_Obj *transPtr; char *name; - ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&tclFsDataKey); if (pathPtr->typePtr == &tclFsPathType) { return TCL_OK; @@ -2435,7 +2340,6 @@ SetFsPathFromAny( */ if (name[0] == '~') { - char *expandedUser; Tcl_DString temp; int split; char separator = '/'; @@ -2468,9 +2372,11 @@ SetFsPathFromAny( dir = TclGetEnv("HOME", &dirString); if (dir == NULL) { if (interp) { - Tcl_ResetResult(interp); - Tcl_AppendResult(interp, "couldn't find HOME environment " - "variable to expand path", NULL); + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "couldn't find HOME environment variable to" + " expand path", -1)); + Tcl_SetErrorCode(interp, "TCL", "VALUE", "PATH", + "HOMELESS", NULL); } return TCL_ERROR; } @@ -2485,9 +2391,10 @@ SetFsPathFromAny( Tcl_DStringInit(&temp); if (TclpGetUserHome(name+1, &temp) == NULL) { if (interp != NULL) { - Tcl_ResetResult(interp); - Tcl_AppendResult(interp, "user \"", name+1, - "\" doesn't exist", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "user \"%s\" doesn't exist", name+1)); + Tcl_SetErrorCode(interp, "TCL", "VALUE", "PATH", "NOUSER", + NULL); } Tcl_DStringFree(&temp); if (split != len) { @@ -2500,8 +2407,7 @@ SetFsPathFromAny( } } - expandedUser = Tcl_DStringValue(&temp); - transPtr = Tcl_NewStringObj(expandedUser, Tcl_DStringLength(&temp)); + transPtr = TclDStringToObj(&temp); if (split != len) { /* @@ -2546,12 +2452,8 @@ SetFsPathFromAny( transPtr = joined; } } - Tcl_DStringFree(&temp); } else { - /* Bug 3479689: protect 0-refcount pathPth from getting freed */ - pathPtr->refCount++; - transPtr = Tcl_FSJoinToPath(pathPtr, 0, NULL); - pathPtr->refCount--; + transPtr = TclJoinPath(1, &pathPtr); } /* @@ -2559,17 +2461,20 @@ SetFsPathFromAny( * slashes on Windows, and will not contain any ~user sequences. */ - fsPathPtr = (FsPath *) ckalloc(sizeof(FsPath)); + fsPathPtr = ckalloc(sizeof(FsPath)); fsPathPtr->translatedPathPtr = transPtr; if (transPtr != pathPtr) { Tcl_IncrRefCount(fsPathPtr->translatedPathPtr); + /* Redo translation when $env(HOME) changes */ + fsPathPtr->filesystemEpoch = TclFSEpoch(); + } else { + fsPathPtr->filesystemEpoch = 0; } fsPathPtr->normPathPtr = NULL; fsPathPtr->cwdPtr = NULL; fsPathPtr->nativePathPtr = NULL; - fsPathPtr->fsRecPtr = NULL; - fsPathPtr->filesystemEpoch = tsdPtr->filesystemEpoch; + fsPathPtr->fsPtr = NULL; /* * Free old representation before installing our new one. @@ -2602,27 +2507,17 @@ FreeFsPathInternalRep( if (fsPathPtr->cwdPtr != NULL) { TclDecrRefCount(fsPathPtr->cwdPtr); } - if (fsPathPtr->nativePathPtr != NULL && fsPathPtr->fsRecPtr != NULL) { + if (fsPathPtr->nativePathPtr != NULL && fsPathPtr->fsPtr != NULL) { Tcl_FSFreeInternalRepProc *freeProc = - fsPathPtr->fsRecPtr->fsPtr->freeInternalRepProc; + fsPathPtr->fsPtr->freeInternalRepProc; if (freeProc != NULL) { - (*freeProc)(fsPathPtr->nativePathPtr); + freeProc(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); + ckfree(fsPathPtr); pathPtr->typePtr = NULL; } @@ -2632,7 +2527,7 @@ DupFsPathInternalRep( Tcl_Obj *copyPtr) /* Path obj with internal rep to set. */ { FsPath *srcFsPathPtr = PATHOBJ(srcPtr); - FsPath *copyFsPathPtr = (FsPath *) ckalloc(sizeof(FsPath)); + FsPath *copyFsPathPtr = ckalloc(sizeof(FsPath)); SETPATHOBJ(copyPtr, copyFsPathPtr); @@ -2663,25 +2558,22 @@ DupFsPathInternalRep( copyFsPathPtr->flags = srcFsPathPtr->flags; - if (srcFsPathPtr->fsRecPtr != NULL + if (srcFsPathPtr->fsPtr != NULL && srcFsPathPtr->nativePathPtr != NULL) { Tcl_FSDupInternalRepProc *dupProc = - srcFsPathPtr->fsRecPtr->fsPtr->dupInternalRepProc; + srcFsPathPtr->fsPtr->dupInternalRepProc; if (dupProc != NULL) { copyFsPathPtr->nativePathPtr = - (*dupProc)(srcFsPathPtr->nativePathPtr); + dupProc(srcFsPathPtr->nativePathPtr); } else { copyFsPathPtr->nativePathPtr = NULL; } } else { copyFsPathPtr->nativePathPtr = NULL; } - copyFsPathPtr->fsRecPtr = srcFsPathPtr->fsRecPtr; + copyFsPathPtr->fsPtr = srcFsPathPtr->fsPtr; copyFsPathPtr->filesystemEpoch = srcFsPathPtr->filesystemEpoch; - if (copyFsPathPtr->fsRecPtr != NULL) { - copyFsPathPtr->fsRecPtr->fileRefCount++; - } copyPtr->typePtr = &tclFsPathType; } |