diff options
Diffstat (limited to 'generic/tclCkalloc.c')
| -rw-r--r-- | generic/tclCkalloc.c | 183 |
1 files changed, 100 insertions, 83 deletions
diff --git a/generic/tclCkalloc.c b/generic/tclCkalloc.c index 794372d..dbae0fd 100644 --- a/generic/tclCkalloc.c +++ b/generic/tclCkalloc.c @@ -13,7 +13,7 @@ * * This code contributed by Karl Lehenbauer and Mark Diekhans * - * RCS: @(#) $Id: tclCkalloc.c,v 1.21 2004/04/06 22:25:48 dgp Exp $ + * RCS: @(#) $Id: tclCkalloc.c,v 1.22 2004/10/06 13:05:02 dkf Exp $ */ #include "tclInt.h" @@ -144,6 +144,7 @@ static void ValidateMemory _ANSI_ARGS_(( * *---------------------------------------------------------------------- */ + void TclInitDbCkalloc() { @@ -161,6 +162,7 @@ TclInitDbCkalloc() * *---------------------------------------------------------------------- */ + void TclDumpMemoryInfo(outFile) FILE *outFile; @@ -179,7 +181,6 @@ TclDumpMemoryInfo(outFile) maximum_bytes_malloced); } - /* *---------------------------------------------------------------------- * @@ -200,17 +201,17 @@ TclDumpMemoryInfo(outFile) static void ValidateMemory(memHeaderP, file, line, nukeGuards) struct mem_header *memHeaderP; /* Memory chunk to validate */ - CONST char *file; /* File containing the call to + CONST char *file; /* File containing the call to * Tcl_ValidateAllMemory */ - int line; /* Line number of call to + int line; /* Line number of call to * Tcl_ValidateAllMemory */ - int nukeGuards; /* If non-zero, indicates that the + int nukeGuards; /* If non-zero, indicates that the * memory guards are to be reset to 0 * after they have been printed */ { unsigned char *hiPtr; - int idx; - int guard_failed = FALSE; + int idx; + int guard_failed = FALSE; int byte; for (idx = 0; idx < LOW_GUARD_SIZE; idx++) { @@ -238,7 +239,7 @@ ValidateMemory(memHeaderP, file, line, nukeGuards) byte = *(hiPtr + idx); if (byte != GUARD_VALUE) { guard_failed = TRUE; - fflush (stdout); + fflush(stdout); byte &= 0xff; fprintf(stderr, "hi guard byte %d is 0x%x \t%c\n", idx, byte, (isprint(UCHAR(byte)) ? byte : ' ')); /* INTL: bytes */ @@ -246,7 +247,7 @@ ValidateMemory(memHeaderP, file, line, nukeGuards) } if (guard_failed) { - TclDumpMemoryInfo (stderr); + 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. */ @@ -257,8 +258,8 @@ ValidateMemory(memHeaderP, file, line, nukeGuards) } if (nukeGuards) { - memset ((char *) memHeaderP->low_guard, 0, LOW_GUARD_SIZE); - memset ((char *) hiPtr, 0, HIGH_GUARD_SIZE); + memset((char *) memHeaderP->low_guard, 0, LOW_GUARD_SIZE); + memset((char *) hiPtr, 0, HIGH_GUARD_SIZE); } } @@ -278,10 +279,11 @@ ValidateMemory(memHeaderP, file, line, nukeGuards) * *---------------------------------------------------------------------- */ + void -Tcl_ValidateAllMemory (file, line) - CONST char *file; /* File from which Tcl_ValidateAllMemory was called */ - int line; /* Line number of call to Tcl_ValidateAllMemory */ +Tcl_ValidateAllMemory(file, line) + CONST char *file; /* File from which Tcl_ValidateAllMemory was called */ + int line; /* Line number of call to Tcl_ValidateAllMemory */ { struct mem_header *memScanP; @@ -308,13 +310,14 @@ Tcl_ValidateAllMemory (file, line) * will have the file error number left in it. *---------------------------------------------------------------------- */ + int Tcl_DumpActiveMemory (fileName) CONST char *fileName; /* Name of the file to write info to */ { - FILE *fileP; + FILE *fileP; struct mem_header *memScanP; - char *address; + char *address; if (fileName == NULL) { fileP = stderr; @@ -330,15 +333,15 @@ Tcl_DumpActiveMemory (fileName) 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); + (long unsigned int) address + memScanP->length - 1, + memScanP->length, memScanP->file, memScanP->line, + (memScanP->tagPtr == NULL) ? "" : memScanP->tagPtr->string); (void) fputc('\n', fileP); } Tcl_MutexUnlock(ckallocMutexPtr); if (fileP != stderr) { - fclose (fileP); + fclose(fileP); } return TCL_OK; } @@ -361,19 +364,21 @@ Tcl_DumpActiveMemory (fileName) * *---------------------------------------------------------------------- */ + char * Tcl_DbCkalloc(size, file, line) unsigned int size; - CONST char *file; - int line; + CONST char *file; + int line; { struct mem_header *result; - if (validate_memory) - Tcl_ValidateAllMemory (file, line); + if (validate_memory) { + Tcl_ValidateAllMemory(file, line); + } result = (struct mem_header *) TclpAlloc((unsigned)size + - sizeof(struct mem_header) + HIGH_GUARD_SIZE); + sizeof(struct mem_header) + HIGH_GUARD_SIZE); if (result == NULL) { fflush(stdout); TclDumpMemoryInfo(stderr); @@ -386,11 +391,11 @@ Tcl_DbCkalloc(size, file, line) * Link into allocated list. */ if (init_malloced_bodies) { - memset ((VOID *) result, GUARD_VALUE, + 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); + memset((char *) result->low_guard, GUARD_VALUE, LOW_GUARD_SIZE); + memset(result->body + size, GUARD_VALUE, HIGH_GUARD_SIZE); } if (!ckallocInit) { TclInitDbCkalloc(); @@ -406,13 +411,14 @@ Tcl_DbCkalloc(size, file, line) result->flink = allocHead; result->blink = NULL; - if (allocHead != 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); + (void) fflush(stdout); fprintf(stderr, "reached malloc trace enable point (%d)\n", total_mallocs); fflush(stderr); @@ -420,26 +426,29 @@ Tcl_DbCkalloc(size, file, line) trace_on_at_malloc = 0; } - if (alloc_tracing) + if (alloc_tracing) { fprintf(stderr,"ckalloc %lx %u %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); + (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); + (void) fflush(stderr); abort(); } current_malloc_packets++; - if (current_malloc_packets > maximum_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) + if (current_bytes_malloced > maximum_bytes_malloced) { maximum_bytes_malloced = current_bytes_malloced; + } Tcl_MutexUnlock(ckallocMutexPtr); @@ -449,16 +458,17 @@ Tcl_DbCkalloc(size, file, line) char * Tcl_AttemptDbCkalloc(size, file, line) unsigned int size; - CONST char *file; - int line; + CONST char *file; + int line; { struct mem_header *result; - if (validate_memory) - Tcl_ValidateAllMemory (file, line); + if (validate_memory) { + Tcl_ValidateAllMemory(file, line); + } result = (struct mem_header *) TclpAlloc((unsigned)size + - sizeof(struct mem_header) + HIGH_GUARD_SIZE); + sizeof(struct mem_header) + HIGH_GUARD_SIZE); if (result == NULL) { fflush(stdout); TclDumpMemoryInfo(stderr); @@ -471,11 +481,11 @@ Tcl_AttemptDbCkalloc(size, file, line) * Link into allocated list. */ if (init_malloced_bodies) { - memset ((VOID *) result, GUARD_VALUE, + 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); + memset((char *) result->low_guard, GUARD_VALUE, LOW_GUARD_SIZE); + memset(result->body + size, GUARD_VALUE, HIGH_GUARD_SIZE); } if (!ckallocInit) { TclInitDbCkalloc(); @@ -491,13 +501,14 @@ Tcl_AttemptDbCkalloc(size, file, line) result->flink = allocHead; result->blink = NULL; - if (allocHead != 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); + (void) fflush(stdout); fprintf(stderr, "reached malloc trace enable point (%d)\n", total_mallocs); fflush(stderr); @@ -505,32 +516,34 @@ Tcl_AttemptDbCkalloc(size, file, line) trace_on_at_malloc = 0; } - if (alloc_tracing) + if (alloc_tracing) { fprintf(stderr,"ckalloc %lx %u %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); + (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); + (void) fflush(stderr); abort(); } current_malloc_packets++; - if (current_malloc_packets > maximum_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) + if (current_bytes_malloced > maximum_bytes_malloced) { maximum_bytes_malloced = current_bytes_malloced; + } Tcl_MutexUnlock(ckallocMutexPtr); return result->body; } - /* *---------------------------------------------------------------------- @@ -553,9 +566,9 @@ Tcl_AttemptDbCkalloc(size, file, line) int Tcl_DbCkfree(ptr, file, line) - char *ptr; + char *ptr; CONST char *file; - int line; + int line; { struct mem_header *memp; @@ -602,12 +615,15 @@ Tcl_DbCkfree(ptr, file, line) /* * Delink from allocated list */ - if (memp->flink != NULL) + if (memp->flink != NULL) { memp->flink->blink = memp->blink; - if (memp->blink != NULL) + } + if (memp->blink != NULL) { memp->blink->flink = memp->flink; - if (allocHead == memp) + } + if (allocHead == memp) { allocHead = memp->flink; + } TclpFree((char *) memp); Tcl_MutexUnlock(ckallocMutexPtr); @@ -626,12 +642,13 @@ Tcl_DbCkfree(ptr, file, line) * *-------------------------------------------------------------------- */ + char * Tcl_DbCkrealloc(ptr, size, file, line) - char *ptr; + char *ptr; unsigned int size; - CONST char *file; - int line; + CONST char *file; + int line; { char *new; unsigned int copySize; @@ -660,10 +677,10 @@ Tcl_DbCkrealloc(ptr, size, file, line) char * Tcl_AttemptDbCkrealloc(ptr, size, file, line) - char *ptr; + char *ptr; unsigned int size; - CONST char *file; - int line; + CONST char *file; + int line; { char *new; unsigned int copySize; @@ -776,11 +793,11 @@ Tcl_AttemptRealloc(ptr, size) */ /* ARGSUSED */ static int -MemoryCmd (clientData, interp, argc, argv) - ClientData clientData; +MemoryCmd(clientData, interp, argc, argv) + ClientData clientData; Tcl_Interp *interp; - int argc; - CONST char **argv; + int argc; + CONST char **argv; { CONST char *fileName; Tcl_DString buffer; @@ -966,7 +983,7 @@ Tcl_InitMemory(interp) Tcl_Interp *interp; /* Interpreter in which commands should be added */ { TclInitDbCkalloc(); - Tcl_CreateCommand (interp, "memory", MemoryCmd, (ClientData) NULL, + Tcl_CreateCommand(interp, "memory", MemoryCmd, (ClientData) NULL, (Tcl_CmdDeleteProc *) NULL); Tcl_CreateCommand(interp, "checkmem", CheckmemCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); @@ -993,7 +1010,7 @@ Tcl_InitMemory(interp) */ char * -Tcl_Alloc (size) +Tcl_Alloc(size) unsigned int size; { char *result; @@ -1017,8 +1034,8 @@ Tcl_Alloc (size) char * Tcl_DbCkalloc(size, file, line) unsigned int size; - CONST char *file; - int line; + CONST char *file; + int line; { char *result; @@ -1042,7 +1059,7 @@ Tcl_DbCkalloc(size, file, line) */ char * -Tcl_AttemptAlloc (size) +Tcl_AttemptAlloc(size) unsigned int size; { char *result; @@ -1054,8 +1071,8 @@ Tcl_AttemptAlloc (size) char * Tcl_AttemptDbCkalloc(size, file, line) unsigned int size; - CONST char *file; - int line; + CONST char *file; + int line; { char *result; @@ -1091,10 +1108,10 @@ Tcl_Realloc(ptr, size) char * Tcl_DbCkrealloc(ptr, size, file, line) - char *ptr; + char *ptr; unsigned int size; - CONST char *file; - int line; + CONST char *file; + int line; { char *result; @@ -1130,10 +1147,10 @@ Tcl_AttemptRealloc(ptr, size) char * Tcl_AttemptDbCkrealloc(ptr, size, file, line) - char *ptr; + char *ptr; unsigned int size; - CONST char *file; - int line; + CONST char *file; + int line; { char *result; @@ -1153,7 +1170,7 @@ Tcl_AttemptDbCkrealloc(ptr, size, file, line) */ void -Tcl_Free (ptr) +Tcl_Free(ptr) char *ptr; { TclpFree(ptr); @@ -1161,9 +1178,9 @@ Tcl_Free (ptr) int Tcl_DbCkfree(ptr, file, line) - char *ptr; + char *ptr; CONST char *file; - int line; + int line; { TclpFree(ptr); return 0; @@ -1195,7 +1212,7 @@ Tcl_DumpActiveMemory(fileName) void Tcl_ValidateAllMemory(file, line) CONST char *file; - int line; + int line; { } |