diff options
Diffstat (limited to 'generic/tclCkalloc.c')
| -rw-r--r-- | generic/tclCkalloc.c | 974 |
1 files changed, 0 insertions, 974 deletions
diff --git a/generic/tclCkalloc.c b/generic/tclCkalloc.c deleted file mode 100644 index f19d597..0000000 --- a/generic/tclCkalloc.c +++ /dev/null @@ -1,974 +0,0 @@ -/* - * tclCkalloc.c -- - * - * Interface to malloc and free that provides support for debugging problems - * involving overwritten, double freeing memory and loss of memory. - * - * Copyright (c) 1991-1994 The Regents of the University of California. - * Copyright (c) 1994-1997 Sun Microsystems, Inc. - * Copyright (c) 1998-1999 by Scriptics Corporation. - * - * See the file "license.terms" for information on usage and redistribution - * of this file, and for a DISCLAIMER OF ALL WARRANTIES. - * - * This code contributed by Karl Lehenbauer and Mark Diekhans - * - * RCS: @(#) $Id: tclCkalloc.c,v 1.4 1999/04/16 00:46:42 stanton Exp $ - */ - -#include "tclInt.h" -#include "tclPort.h" - -#define FALSE 0 -#define TRUE 1 - -#ifdef TCL_MEM_DEBUG - -/* - * One of the following structures is allocated each time the - * "memory tag" command is invoked, to hold the current tag. - */ - -typedef struct MemTag { - int refCount; /* Number of mem_headers referencing - * this tag. */ - char string[4]; /* Actual size of string will be as - * large as needed for actual tag. This - * must be the last field in the structure. */ -} MemTag; - -#define TAG_SIZE(bytesInString) ((unsigned) sizeof(MemTag) + bytesInString - 3) - -static MemTag *curTagPtr = NULL;/* Tag to use in all future mem_headers - * (set by "memory tag" command). */ - -/* - * One of the following structures is allocated just before each - * dynamically allocated chunk of memory, both to record information - * about the chunk and to help detect chunk under-runs. - */ - -#define LOW_GUARD_SIZE (8 + (32 - (sizeof(long) + sizeof(int)))%8) -struct mem_header { - struct mem_header *flink; - struct mem_header *blink; - MemTag *tagPtr; /* Tag from "memory tag" command; may be - * NULL. */ - char *file; - long length; - int line; - unsigned char low_guard[LOW_GUARD_SIZE]; - /* Aligns body on 8-byte boundary, plus - * provides at least 8 additional guard bytes - * to detect underruns. */ - char body[1]; /* First byte of client's space. Actual - * size of this field will be larger than - * one. */ -}; - -static struct mem_header *allocHead = NULL; /* List of allocated structures */ - -#define GUARD_VALUE 0141 - -/* - * The following macro determines the amount of guard space *above* each - * chunk of memory. - */ - -#define HIGH_GUARD_SIZE 8 - -/* - * The following macro computes the offset of the "body" field within - * mem_header. It is used to get back to the header pointer from the - * body pointer that's used by clients. - */ - -#define BODY_OFFSET \ - ((unsigned long) (&((struct mem_header *) 0)->body)) - -static int total_mallocs = 0; -static int total_frees = 0; -static int current_bytes_malloced = 0; -static int maximum_bytes_malloced = 0; -static int current_malloc_packets = 0; -static int maximum_malloc_packets = 0; -static int break_on_malloc = 0; -static int trace_on_at_malloc = 0; -static int alloc_tracing = FALSE; -static int init_malloced_bodies = TRUE; -#ifdef MEM_VALIDATE - static int validate_memory = TRUE; -#else - static int validate_memory = FALSE; -#endif - -/* - * The following variable indicates to TclFinalizeMemorySubsystem() - * that it should dump out the state of memory before exiting. If the - * value is non-NULL, it gives the name of the file in which to - * dump memory usage information. - */ - -char *tclMemDumpFileName = NULL; - -static char dumpFile[100]; /* Records where to dump memory allocation - * information. */ - -/* - * Mutex to serialize allocations. This is a low-level mutex that must - * be explicitly initialized. This is necessary because the self - * initializing mutexes use ckalloc... - */ -static TclpMutex ckallocMutex; -static int ckallocInit = 0; - -/* - * Prototypes for procedures defined in this file: - */ - -static int CheckmemCmd _ANSI_ARGS_((ClientData clientData, - Tcl_Interp *interp, int argc, char *argv[])); -static int MemoryCmd _ANSI_ARGS_((ClientData clientData, - Tcl_Interp *interp, int argc, char **argv)); -static void ValidateMemory _ANSI_ARGS_(( - struct mem_header *memHeaderP, char *file, - int line, int nukeGuards)); - -/* - *---------------------------------------------------------------------- - * - * TclInitDbCkalloc -- - * Initialize the locks used by the allocator. - * This is only appropriate to call in a single threaded environtment, - * such as during TclInitSubsystems. - * - *---------------------------------------------------------------------- - */ -void -TclInitDbCkalloc() -{ - if (!ckallocInit) { - ckallocInit = 1; - TclpMutexInit(&ckallocMutex); - } -} - -/* - *---------------------------------------------------------------------- - * - * TclDumpMemoryInfo -- - * Display the global memory management statistics. - * - *---------------------------------------------------------------------- - */ -void -TclDumpMemoryInfo(outFile) - FILE *outFile; -{ - fprintf(outFile,"total mallocs %10d\n", - total_mallocs); - fprintf(outFile,"total frees %10d\n", - total_frees); - fprintf(outFile,"current packets allocated %10d\n", - current_malloc_packets); - fprintf(outFile,"current bytes allocated %10d\n", - current_bytes_malloced); - fprintf(outFile,"maximum packets allocated %10d\n", - maximum_malloc_packets); - fprintf(outFile,"maximum bytes allocated %10d\n", - maximum_bytes_malloced); -} - -/* - *---------------------------------------------------------------------- - * - * ValidateMemory -- - * Procedure to validate allocted memory guard zones. - * - *---------------------------------------------------------------------- - */ -static void -ValidateMemory(memHeaderP, file, line, nukeGuards) - struct mem_header *memHeaderP; - char *file; - int line; - int nukeGuards; -{ - unsigned char *hiPtr; - int idx; - int guard_failed = FALSE; - int byte; - - for (idx = 0; idx < LOW_GUARD_SIZE; idx++) { - byte = *(memHeaderP->low_guard + idx); - if (byte != GUARD_VALUE) { - guard_failed = TRUE; - fflush(stdout); - byte &= 0xff; - fprintf(stderr, "low guard byte %d is 0x%x \t%c\n", idx, byte, - (isprint(UCHAR(byte)) ? byte : ' ')); /* INTL: bytes */ - } - } - if (guard_failed) { - TclDumpMemoryInfo (stderr); - fprintf(stderr, "low guard failed at %lx, %s %d\n", - (long unsigned int) memHeaderP->body, file, line); - fflush(stderr); /* In case name pointer is bad. */ - fprintf(stderr, "%ld bytes allocated at (%s %d)\n", memHeaderP->length, - memHeaderP->file, memHeaderP->line); - panic ("Memory validation failure"); - } - - hiPtr = (unsigned char *)memHeaderP->body + memHeaderP->length; - for (idx = 0; idx < HIGH_GUARD_SIZE; idx++) { - byte = *(hiPtr + idx); - if (byte != GUARD_VALUE) { - guard_failed = TRUE; - fflush (stdout); - byte &= 0xff; - fprintf(stderr, "hi guard byte %d is 0x%x \t%c\n", idx, byte, - (isprint(UCHAR(byte)) ? byte : ' ')); /* INTL: bytes */ - } - } - - if (guard_failed) { - TclDumpMemoryInfo (stderr); - fprintf(stderr, "high guard failed at %lx, %s %d\n", - (long unsigned int) memHeaderP->body, file, line); - fflush(stderr); /* In case name pointer is bad. */ - fprintf(stderr, "%ld bytes allocated at (%s %d)\n", - memHeaderP->length, memHeaderP->file, - memHeaderP->line); - panic("Memory validation failure"); - } - - if (nukeGuards) { - memset ((char *) memHeaderP->low_guard, 0, LOW_GUARD_SIZE); - memset ((char *) hiPtr, 0, HIGH_GUARD_SIZE); - } - -} - -/* - *---------------------------------------------------------------------- - * - * Tcl_ValidateAllMemory -- - * Validates guard regions for all allocated memory. - * - *---------------------------------------------------------------------- - */ -void -Tcl_ValidateAllMemory (file, line) - char *file; - int line; -{ - struct mem_header *memScanP; - - if (!ckallocInit) { - ckallocInit = 1; - TclpMutexInit(&ckallocMutex); - } - TclpMutexLock(&ckallocMutex); - for (memScanP = allocHead; memScanP != NULL; memScanP = memScanP->flink) { - ValidateMemory(memScanP, file, line, FALSE); - } - TclpMutexUnlock(&ckallocMutex); -} - -/* - *---------------------------------------------------------------------- - * - * Tcl_DumpActiveMemory -- - * Displays all allocated memory to stderr. - * - * Results: - * Return TCL_ERROR if an error accessing the file occures, `errno' - * will have the file error number left in it. - *---------------------------------------------------------------------- - */ -int -Tcl_DumpActiveMemory (fileName) - char *fileName; -{ - FILE *fileP; - struct mem_header *memScanP; - char *address; - - if (fileName == NULL) { - fileP = stdout; - } else { - fileP = fopen(fileName, "w"); - if (fileP == NULL) { - return TCL_ERROR; - } - } - - TclpMutexLock(&ckallocMutex); - for (memScanP = allocHead; memScanP != NULL; memScanP = memScanP->flink) { - address = &memScanP->body [0]; - fprintf(fileP, "%8lx - %8lx %7ld @ %s %d %s", - (long unsigned int) address, - (long unsigned int) address + memScanP->length - 1, - memScanP->length, memScanP->file, memScanP->line, - (memScanP->tagPtr == NULL) ? "" : memScanP->tagPtr->string); - (void) fputc('\n', fileP); - } - TclpMutexUnlock(&ckallocMutex); - - if (fileP != stderr) { - fclose (fileP); - } - return TCL_OK; -} - -/* - *---------------------------------------------------------------------- - * - * Tcl_DbCkalloc - debugging ckalloc - * - * Allocate the requested amount of space plus some extra for - * guard bands at both ends of the request, plus a size, panicing - * if there isn't enough space, then write in the guard bands - * and return the address of the space in the middle that the - * user asked for. - * - * The second and third arguments are file and line, these contain - * the filename and line number corresponding to the caller. - * These are sent by the ckalloc macro; it uses the preprocessor - * autodefines __FILE__ and __LINE__. - * - *---------------------------------------------------------------------- - */ -char * -Tcl_DbCkalloc(size, file, line) - unsigned int size; - char *file; - int line; -{ - struct mem_header *result; - - if (validate_memory) - Tcl_ValidateAllMemory (file, line); - - result = (struct mem_header *) TclpAlloc((unsigned)size + - sizeof(struct mem_header) + HIGH_GUARD_SIZE); - if (result == NULL) { - fflush(stdout); - TclDumpMemoryInfo(stderr); - panic("unable to alloc %d bytes, %s line %d", size, file, - line); - } - - /* - * Fill in guard zones and size. Also initialize the contents of - * the block with bogus bytes to detect uses of initialized data. - * Link into allocated list. - */ - if (init_malloced_bodies) { - memset ((VOID *) result, GUARD_VALUE, - size + sizeof(struct mem_header) + HIGH_GUARD_SIZE); - } else { - memset ((char *) result->low_guard, GUARD_VALUE, LOW_GUARD_SIZE); - memset (result->body + size, GUARD_VALUE, HIGH_GUARD_SIZE); - } - if (!ckallocInit) { - ckallocInit = 1; - TclpMutexInit(&ckallocMutex); - } - TclpMutexLock(&ckallocMutex); - result->length = size; - result->tagPtr = curTagPtr; - if (curTagPtr != NULL) { - curTagPtr->refCount++; - } - result->file = file; - result->line = line; - result->flink = allocHead; - result->blink = NULL; - - if (allocHead != NULL) - allocHead->blink = result; - allocHead = result; - - total_mallocs++; - if (trace_on_at_malloc && (total_mallocs >= trace_on_at_malloc)) { - (void) fflush(stdout); - fprintf(stderr, "reached malloc trace enable point (%d)\n", - total_mallocs); - fflush(stderr); - alloc_tracing = TRUE; - trace_on_at_malloc = 0; - } - - if (alloc_tracing) - fprintf(stderr,"ckalloc %lx %d %s %d\n", - (long unsigned int) result->body, size, file, line); - - if (break_on_malloc && (total_mallocs >= break_on_malloc)) { - break_on_malloc = 0; - (void) fflush(stdout); - fprintf(stderr,"reached malloc break limit (%d)\n", - total_mallocs); - fprintf(stderr, "program will now enter C debugger\n"); - (void) fflush(stderr); - abort(); - } - - current_malloc_packets++; - if (current_malloc_packets > maximum_malloc_packets) - maximum_malloc_packets = current_malloc_packets; - current_bytes_malloced += size; - if (current_bytes_malloced > maximum_bytes_malloced) - maximum_bytes_malloced = current_bytes_malloced; - - TclpMutexUnlock(&ckallocMutex); - - return result->body; -} - -/* - *---------------------------------------------------------------------- - * - * Tcl_DbCkfree - debugging ckfree - * - * Verify that the low and high guards are intact, and if so - * then free the buffer else panic. - * - * The guards are erased after being checked to catch duplicate - * frees. - * - * The second and third arguments are file and line, these contain - * the filename and line number corresponding to the caller. - * These are sent by the ckfree macro; it uses the preprocessor - * autodefines __FILE__ and __LINE__. - * - *---------------------------------------------------------------------- - */ - -int -Tcl_DbCkfree(ptr, file, line) - char * ptr; - char *file; - int line; -{ - /* - * The following cast is *very* tricky. Must convert the pointer - * to an integer before doing arithmetic on it, because otherwise - * the arithmetic will be done differently (and incorrectly) on - * word-addressed machines such as Crays (will subtract only bytes, - * even though BODY_OFFSET is in words on these machines). - */ - - struct mem_header *memp = (struct mem_header *) - (((unsigned long) ptr) - BODY_OFFSET); - - if (alloc_tracing) - fprintf(stderr, "ckfree %lx %ld %s %d\n", - (long unsigned int) memp->body, memp->length, file, line); - - if (validate_memory) - Tcl_ValidateAllMemory(file, line); - - TclpMutexLock(&ckallocMutex); - ValidateMemory(memp, file, line, TRUE); - if (init_malloced_bodies) { - memset((VOID *) ptr, GUARD_VALUE, (size_t) memp->length); - } - - total_frees++; - current_malloc_packets--; - current_bytes_malloced -= memp->length; - - if (memp->tagPtr != NULL) { - memp->tagPtr->refCount--; - if ((memp->tagPtr->refCount == 0) && (curTagPtr != memp->tagPtr)) { - TclpFree((char *) memp->tagPtr); - } - } - - /* - * Delink from allocated list - */ - if (memp->flink != NULL) - memp->flink->blink = memp->blink; - if (memp->blink != NULL) - memp->blink->flink = memp->flink; - if (allocHead == memp) - allocHead = memp->flink; - TclpFree((char *) memp); - TclpMutexUnlock(&ckallocMutex); - - return 0; -} - -/* - *-------------------------------------------------------------------- - * - * Tcl_DbCkrealloc - debugging ckrealloc - * - * Reallocate a chunk of memory by allocating a new one of the - * right size, copying the old data to the new location, and then - * freeing the old memory space, using all the memory checking - * features of this package. - * - *-------------------------------------------------------------------- - */ -char * -Tcl_DbCkrealloc(ptr, size, file, line) - char *ptr; - unsigned int size; - char *file; - int line; -{ - char *new; - unsigned int copySize; - - /* - * See comment from Tcl_DbCkfree before you change the following - * line. - */ - - struct mem_header *memp = (struct mem_header *) - (((unsigned long) ptr) - BODY_OFFSET); - - copySize = size; - if (copySize > (unsigned int) memp->length) { - copySize = memp->length; - } - new = Tcl_DbCkalloc(size, file, line); - memcpy((VOID *) new, (VOID *) ptr, (size_t) copySize); - Tcl_DbCkfree(ptr, file, line); - return(new); -} - - -/* - *---------------------------------------------------------------------- - * - * Tcl_Alloc, et al. -- - * - * These functions are defined in terms of the debugging versions - * when TCL_MEM_DEBUG is set. - * - * Results: - * Same as the debug versions. - * - * Side effects: - * Same as the debug versions. - * - *---------------------------------------------------------------------- - */ - -#undef Tcl_Alloc -#undef Tcl_Free -#undef Tcl_Realloc - -char * -Tcl_Alloc(size) - unsigned int size; -{ - return Tcl_DbCkalloc(size, "unknown", 0); -} - -void -Tcl_Free(ptr) - char *ptr; -{ - Tcl_DbCkfree(ptr, "unknown", 0); -} - -char * -Tcl_Realloc(ptr, size) - char *ptr; - unsigned int size; -{ - return Tcl_DbCkrealloc(ptr, size, "unknown", 0); -} - -/* - *---------------------------------------------------------------------- - * - * MemoryCmd -- - * Implements the TCL memory command: - * memory info - * memory display - * break_on_malloc count - * trace_on_at_malloc count - * trace on|off - * validate on|off - * - * Results: - * Standard TCL results. - * - *---------------------------------------------------------------------- - */ - /* ARGSUSED */ -static int -MemoryCmd (clientData, interp, argc, argv) - ClientData clientData; - Tcl_Interp *interp; - int argc; - char **argv; -{ - char *fileName; - Tcl_DString buffer; - int result; - - if (argc < 2) { - Tcl_AppendResult(interp, "wrong # args: should be \"", - argv[0], " option [args..]\"", (char *) NULL); - return TCL_ERROR; - } - - if (strcmp(argv[1],"active") == 0) { - if (argc != 3) { - Tcl_AppendResult(interp, "wrong # args: should be \"", - argv[0], " active file\"", (char *) NULL); - return TCL_ERROR; - } - fileName = Tcl_TranslateFileName(interp, argv[2], &buffer); - if (fileName == NULL) { - return TCL_ERROR; - } - result = Tcl_DumpActiveMemory (fileName); - Tcl_DStringFree(&buffer); - if (result != TCL_OK) { - Tcl_AppendResult(interp, "error accessing ", argv[2], - (char *) NULL); - return TCL_ERROR; - } - return TCL_OK; - } - if (strcmp(argv[1],"break_on_malloc") == 0) { - if (argc != 3) { - goto argError; - } - if (Tcl_GetInt(interp, argv[2], &break_on_malloc) != TCL_OK) { - return TCL_ERROR; - } - return TCL_OK; - } - if (strcmp(argv[1],"info") == 0) { - char buffer[400]; - sprintf(buffer, "%-25s %10d\n%-25s %10d\n%-25s %10d\n%-25s %10d\n%-25s %10d\n%-25s %10d\n", - "total mallocs", total_mallocs, "total frees", total_frees, - "current packets allocated", current_malloc_packets, - "current bytes allocated", current_bytes_malloced, - "maximum packets allocated", maximum_malloc_packets, - "maximum bytes allocated", maximum_bytes_malloced); - Tcl_SetResult(interp, buffer, TCL_VOLATILE); - return TCL_OK; - } - if (strcmp(argv[1],"init") == 0) { - if (argc != 3) { - goto bad_suboption; - } - init_malloced_bodies = (strcmp(argv[2],"on") == 0); - return TCL_OK; - } - if (strcmp(argv[1],"tag") == 0) { - if (argc != 3) { - Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], - " tag string\"", (char *) NULL); - return TCL_ERROR; - } - if ((curTagPtr != NULL) && (curTagPtr->refCount == 0)) { - TclpFree((char *) curTagPtr); - } - curTagPtr = (MemTag *) TclpAlloc(TAG_SIZE(strlen(argv[2]))); - curTagPtr->refCount = 0; - strcpy(curTagPtr->string, argv[2]); - return TCL_OK; - } - if (strcmp(argv[1],"trace") == 0) { - if (argc != 3) { - goto bad_suboption; - } - alloc_tracing = (strcmp(argv[2],"on") == 0); - return TCL_OK; - } - - if (strcmp(argv[1],"trace_on_at_malloc") == 0) { - if (argc != 3) { - goto argError; - } - if (Tcl_GetInt(interp, argv[2], &trace_on_at_malloc) != TCL_OK) { - return TCL_ERROR; - } - return TCL_OK; - } - if (strcmp(argv[1],"validate") == 0) { - if (argc != 3) { - goto bad_suboption; - } - validate_memory = (strcmp(argv[2],"on") == 0); - return TCL_OK; - } - - Tcl_AppendResult(interp, "bad option \"", argv[1], - "\": should be active, break_on_malloc, info, init, ", - "tag, trace, trace_on_at_malloc, or validate", (char *) NULL); - return TCL_ERROR; - -argError: - Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], - " ", argv[1], " count\"", (char *) NULL); - return TCL_ERROR; - -bad_suboption: - Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], - " ", argv[1], " on|off\"", (char *) NULL); - return TCL_ERROR; -} - -/* - *---------------------------------------------------------------------- - * - * CheckmemCmd -- - * - * This is the command procedure for the "checkmem" command, which - * causes the application to exit after printing information about - * memory usage to the file passed to this command as its first - * argument. - * - * Results: - * Returns a standard Tcl completion code. - * - * Side effects: - * None. - * - *---------------------------------------------------------------------- - */ - -static int -CheckmemCmd(clientData, interp, argc, argv) - ClientData clientData; /* Not used. */ - Tcl_Interp *interp; /* Interpreter for evaluation. */ - int argc; /* Number of arguments. */ - char *argv[]; /* String values of arguments. */ -{ - if (argc != 2) { - Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], - " fileName\"", (char *) NULL); - return TCL_ERROR; - } - tclMemDumpFileName = dumpFile; - strcpy(tclMemDumpFileName, argv[1]); - return TCL_OK; -} - -/* - *---------------------------------------------------------------------- - * - * Tcl_InitMemory -- - * Initialize the memory command. - * - *---------------------------------------------------------------------- - */ -void -Tcl_InitMemory(interp) - Tcl_Interp *interp; -{ - TclInitDbCkalloc(); - Tcl_CreateCommand (interp, "memory", MemoryCmd, (ClientData) NULL, - (Tcl_CmdDeleteProc *) NULL); - Tcl_CreateCommand(interp, "checkmem", CheckmemCmd, (ClientData) 0, - (Tcl_CmdDeleteProc *) NULL); -} - - -#else /* TCL_MEM_DEBUG */ - -#undef Tcl_InitMemory -#undef Tcl_DumpActiveMemory -#undef Tcl_ValidateAllMemory - - -/* - *---------------------------------------------------------------------- - * - * Tcl_Alloc -- - * Interface to TclpAlloc when TCL_MEM_DEBUG is disabled. It does check - * that memory was actually allocated. - * - *---------------------------------------------------------------------- - */ - -char * -Tcl_Alloc (size) - unsigned int size; -{ - char *result; - - result = TclpAlloc(size); - if (result == NULL) - panic("unable to alloc %d bytes", size); - return result; -} - -char * -Tcl_DbCkalloc(size, file, line) - unsigned int size; - char *file; - int line; -{ - char *result; - - result = (char *) TclpAlloc(size); - - if (result == NULL) { - fflush(stdout); - panic("unable to alloc %d bytes, %s line %d", size, file, - line); - } - return result; -} - - -/* - *---------------------------------------------------------------------- - * - * Tcl_Realloc -- - * Interface to TclpRealloc when TCL_MEM_DEBUG is disabled. It does - * check that memory was actually allocated. - * - *---------------------------------------------------------------------- - */ - -char * -Tcl_Realloc(ptr, size) - char *ptr; - unsigned int size; -{ - char *result; - - result = TclpRealloc(ptr, size); - if (result == NULL) - panic("unable to realloc %d bytes", size); - return result; -} - -char * -Tcl_DbCkrealloc(ptr, size, file, line) - char *ptr; - unsigned int size; - char *file; - int line; -{ - char *result; - - result = (char *) TclpRealloc(ptr, size); - - if (result == NULL) { - fflush(stdout); - panic("unable to realloc %d bytes, %s line %d", size, file, - line); - } - return result; -} - -/* - *---------------------------------------------------------------------- - * - * Tcl_Free -- - * Interface to TclpFree when TCL_MEM_DEBUG is disabled. Done here - * rather in the macro to keep some modules from being compiled with - * TCL_MEM_DEBUG enabled and some with it disabled. - * - *---------------------------------------------------------------------- - */ - -void -Tcl_Free (ptr) - char *ptr; -{ - TclpFree(ptr); -} - -int -Tcl_DbCkfree(ptr, file, line) - char * ptr; - char *file; - int line; -{ - TclpFree(ptr); - return 0; -} - -/* - *---------------------------------------------------------------------- - * - * Tcl_InitMemory -- - * Dummy initialization for memory command, which is only available - * if TCL_MEM_DEBUG is on. - * - *---------------------------------------------------------------------- - */ - /* ARGSUSED */ -void -Tcl_InitMemory(interp) - Tcl_Interp *interp; -{ -} - -int -Tcl_DumpActiveMemory(fileName) - char *fileName; -{ - return TCL_OK; -} - -void -Tcl_ValidateAllMemory(file, line) - char *file; - int line; -{ -} - -void -TclDumpMemoryInfo(outFile) - FILE *outFile; -{ -} - -#endif /* TCL_MEM_DEBUG */ - -/* - *--------------------------------------------------------------------------- - * - * TclFinalizeMemorySubsystem -- - * - * This procedure is called to finalize all the structures that - * are used by the memory allocator on a per-process basis. - * - * Results: - * None. - * - * Side effects: - * This subsystem is self-initializing, since memory can be - * allocated before Tcl is formally initialized. After this call, - * this subsystem has been reset to its initial state and is - * usable again. - * - *--------------------------------------------------------------------------- - */ - -void -TclFinalizeMemorySubsystem() -{ -#ifdef TCL_MEM_DEBUG - TclpMutexLock(&ckallocMutex); - if (tclMemDumpFileName != NULL) { - Tcl_DumpActiveMemory(tclMemDumpFileName); - } - if (curTagPtr != NULL) { - TclpFree((char *) curTagPtr); - } - allocHead = NULL; - TclpMutexUnlock(&ckallocMutex); -#endif - -#if USE_TCLALLOC - TclFinalizeAllocSubsystem(); -#endif -} |