1 |
dashley |
64 |
/* $Header$ */
|
2 |
dashley |
25 |
|
3 |
|
|
/*
|
4 |
|
|
* tclCkalloc.c --
|
5 |
|
|
*
|
6 |
|
|
* Interface to malloc and free that provides support for debugging problems
|
7 |
|
|
* involving overwritten, double freeing memory and loss of memory.
|
8 |
|
|
*
|
9 |
|
|
* Copyright (c) 1991-1994 The Regents of the University of California.
|
10 |
|
|
* Copyright (c) 1994-1997 Sun Microsystems, Inc.
|
11 |
|
|
* Copyright (c) 1998-1999 by Scriptics Corporation.
|
12 |
|
|
*
|
13 |
|
|
* See the file "license.terms" for information on usage and redistribution
|
14 |
|
|
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
|
15 |
|
|
*
|
16 |
|
|
* This code contributed by Karl Lehenbauer and Mark Diekhans
|
17 |
|
|
*
|
18 |
|
|
* RCS: @(#) $Id: tclckalloc.c,v 1.1.1.1 2001/06/13 04:34:03 dtashley Exp $
|
19 |
|
|
*/
|
20 |
|
|
|
21 |
|
|
#include "tclInt.h"
|
22 |
|
|
#include "tclPort.h"
|
23 |
|
|
|
24 |
|
|
#define FALSE 0
|
25 |
|
|
#define TRUE 1
|
26 |
|
|
|
27 |
|
|
#ifdef TCL_MEM_DEBUG
|
28 |
|
|
|
29 |
|
|
/*
|
30 |
|
|
* One of the following structures is allocated each time the
|
31 |
|
|
* "memory tag" command is invoked, to hold the current tag.
|
32 |
|
|
*/
|
33 |
|
|
|
34 |
|
|
typedef struct MemTag {
|
35 |
|
|
int refCount; /* Number of mem_headers referencing
|
36 |
|
|
* this tag. */
|
37 |
|
|
char string[4]; /* Actual size of string will be as
|
38 |
|
|
* large as needed for actual tag. This
|
39 |
|
|
* must be the last field in the structure. */
|
40 |
|
|
} MemTag;
|
41 |
|
|
|
42 |
|
|
#define TAG_SIZE(bytesInString) ((unsigned) sizeof(MemTag) + bytesInString - 3)
|
43 |
|
|
|
44 |
|
|
static MemTag *curTagPtr = NULL;/* Tag to use in all future mem_headers
|
45 |
|
|
* (set by "memory tag" command). */
|
46 |
|
|
|
47 |
|
|
/*
|
48 |
|
|
* One of the following structures is allocated just before each
|
49 |
|
|
* dynamically allocated chunk of memory, both to record information
|
50 |
|
|
* about the chunk and to help detect chunk under-runs.
|
51 |
|
|
*/
|
52 |
|
|
|
53 |
|
|
#define LOW_GUARD_SIZE (8 + (32 - (sizeof(long) + sizeof(int)))%8)
|
54 |
|
|
struct mem_header {
|
55 |
|
|
struct mem_header *flink;
|
56 |
|
|
struct mem_header *blink;
|
57 |
|
|
MemTag *tagPtr; /* Tag from "memory tag" command; may be
|
58 |
|
|
* NULL. */
|
59 |
|
|
char *file;
|
60 |
|
|
long length;
|
61 |
|
|
int line;
|
62 |
|
|
unsigned char low_guard[LOW_GUARD_SIZE];
|
63 |
|
|
/* Aligns body on 8-byte boundary, plus
|
64 |
|
|
* provides at least 8 additional guard bytes
|
65 |
|
|
* to detect underruns. */
|
66 |
|
|
char body[1]; /* First byte of client's space. Actual
|
67 |
|
|
* size of this field will be larger than
|
68 |
|
|
* one. */
|
69 |
|
|
};
|
70 |
|
|
|
71 |
|
|
static struct mem_header *allocHead = NULL; /* List of allocated structures */
|
72 |
|
|
|
73 |
|
|
#define GUARD_VALUE 0141
|
74 |
|
|
|
75 |
|
|
/*
|
76 |
|
|
* The following macro determines the amount of guard space *above* each
|
77 |
|
|
* chunk of memory.
|
78 |
|
|
*/
|
79 |
|
|
|
80 |
|
|
#define HIGH_GUARD_SIZE 8
|
81 |
|
|
|
82 |
|
|
/*
|
83 |
|
|
* The following macro computes the offset of the "body" field within
|
84 |
|
|
* mem_header. It is used to get back to the header pointer from the
|
85 |
|
|
* body pointer that's used by clients.
|
86 |
|
|
*/
|
87 |
|
|
|
88 |
|
|
#define BODY_OFFSET \
|
89 |
|
|
((unsigned long) (&((struct mem_header *) 0)->body))
|
90 |
|
|
|
91 |
|
|
static int total_mallocs = 0;
|
92 |
|
|
static int total_frees = 0;
|
93 |
|
|
static int current_bytes_malloced = 0;
|
94 |
|
|
static int maximum_bytes_malloced = 0;
|
95 |
|
|
static int current_malloc_packets = 0;
|
96 |
|
|
static int maximum_malloc_packets = 0;
|
97 |
|
|
static int break_on_malloc = 0;
|
98 |
|
|
static int trace_on_at_malloc = 0;
|
99 |
|
|
static int alloc_tracing = FALSE;
|
100 |
|
|
static int init_malloced_bodies = TRUE;
|
101 |
|
|
#ifdef MEM_VALIDATE
|
102 |
|
|
static int validate_memory = TRUE;
|
103 |
|
|
#else
|
104 |
|
|
static int validate_memory = FALSE;
|
105 |
|
|
#endif
|
106 |
|
|
|
107 |
|
|
/*
|
108 |
|
|
* The following variable indicates to TclFinalizeMemorySubsystem()
|
109 |
|
|
* that it should dump out the state of memory before exiting. If the
|
110 |
|
|
* value is non-NULL, it gives the name of the file in which to
|
111 |
|
|
* dump memory usage information.
|
112 |
|
|
*/
|
113 |
|
|
|
114 |
|
|
char *tclMemDumpFileName = NULL;
|
115 |
|
|
|
116 |
|
|
static char dumpFile[100]; /* Records where to dump memory allocation
|
117 |
|
|
* information. */
|
118 |
|
|
|
119 |
|
|
/*
|
120 |
|
|
* Mutex to serialize allocations. This is a low-level mutex that must
|
121 |
|
|
* be explicitly initialized. This is necessary because the self
|
122 |
|
|
* initializing mutexes use ckalloc...
|
123 |
|
|
*/
|
124 |
|
|
static Tcl_Mutex *ckallocMutexPtr;
|
125 |
|
|
static int ckallocInit = 0;
|
126 |
|
|
|
127 |
|
|
/*
|
128 |
|
|
* Prototypes for procedures defined in this file:
|
129 |
|
|
*/
|
130 |
|
|
|
131 |
|
|
static int CheckmemCmd _ANSI_ARGS_((ClientData clientData,
|
132 |
|
|
Tcl_Interp *interp, int argc, char *argv[]));
|
133 |
|
|
static int MemoryCmd _ANSI_ARGS_((ClientData clientData,
|
134 |
|
|
Tcl_Interp *interp, int argc, char **argv));
|
135 |
|
|
static void ValidateMemory _ANSI_ARGS_((
|
136 |
|
|
struct mem_header *memHeaderP, char *file,
|
137 |
|
|
int line, int nukeGuards));
|
138 |
|
|
|
139 |
|
|
/*
|
140 |
|
|
*----------------------------------------------------------------------
|
141 |
|
|
*
|
142 |
|
|
* TclInitDbCkalloc --
|
143 |
|
|
* Initialize the locks used by the allocator.
|
144 |
|
|
* This is only appropriate to call in a single threaded environment,
|
145 |
|
|
* such as during TclInitSubsystems.
|
146 |
|
|
*
|
147 |
|
|
*----------------------------------------------------------------------
|
148 |
|
|
*/
|
149 |
|
|
void
|
150 |
|
|
TclInitDbCkalloc()
|
151 |
|
|
{
|
152 |
|
|
if (!ckallocInit) {
|
153 |
|
|
ckallocInit = 1;
|
154 |
|
|
ckallocMutexPtr = Tcl_GetAllocMutex();
|
155 |
|
|
}
|
156 |
|
|
}
|
157 |
|
|
|
158 |
|
|
/*
|
159 |
|
|
*----------------------------------------------------------------------
|
160 |
|
|
*
|
161 |
|
|
* TclDumpMemoryInfo --
|
162 |
|
|
* Display the global memory management statistics.
|
163 |
|
|
*
|
164 |
|
|
*----------------------------------------------------------------------
|
165 |
|
|
*/
|
166 |
|
|
void
|
167 |
|
|
TclDumpMemoryInfo(outFile)
|
168 |
|
|
FILE *outFile;
|
169 |
|
|
{
|
170 |
|
|
fprintf(outFile,"total mallocs %10d\n",
|
171 |
|
|
total_mallocs);
|
172 |
|
|
fprintf(outFile,"total frees %10d\n",
|
173 |
|
|
total_frees);
|
174 |
|
|
fprintf(outFile,"current packets allocated %10d\n",
|
175 |
|
|
current_malloc_packets);
|
176 |
|
|
fprintf(outFile,"current bytes allocated %10d\n",
|
177 |
|
|
current_bytes_malloced);
|
178 |
|
|
fprintf(outFile,"maximum packets allocated %10d\n",
|
179 |
|
|
maximum_malloc_packets);
|
180 |
|
|
fprintf(outFile,"maximum bytes allocated %10d\n",
|
181 |
|
|
maximum_bytes_malloced);
|
182 |
|
|
}
|
183 |
|
|
|
184 |
|
|
/*
|
185 |
|
|
*----------------------------------------------------------------------
|
186 |
|
|
*
|
187 |
|
|
* ValidateMemory --
|
188 |
|
|
* Procedure to validate allocted memory guard zones.
|
189 |
|
|
*
|
190 |
|
|
*----------------------------------------------------------------------
|
191 |
|
|
*/
|
192 |
|
|
static void
|
193 |
|
|
ValidateMemory(memHeaderP, file, line, nukeGuards)
|
194 |
|
|
struct mem_header *memHeaderP;
|
195 |
|
|
char *file;
|
196 |
|
|
int line;
|
197 |
|
|
int nukeGuards;
|
198 |
|
|
{
|
199 |
|
|
unsigned char *hiPtr;
|
200 |
|
|
int idx;
|
201 |
|
|
int guard_failed = FALSE;
|
202 |
|
|
int byte;
|
203 |
|
|
|
204 |
|
|
for (idx = 0; idx < LOW_GUARD_SIZE; idx++) {
|
205 |
|
|
byte = *(memHeaderP->low_guard + idx);
|
206 |
|
|
if (byte != GUARD_VALUE) {
|
207 |
|
|
guard_failed = TRUE;
|
208 |
|
|
fflush(stdout);
|
209 |
|
|
byte &= 0xff;
|
210 |
|
|
fprintf(stderr, "low guard byte %d is 0x%x \t%c\n", idx, byte,
|
211 |
|
|
(isprint(UCHAR(byte)) ? byte : ' ')); /* INTL: bytes */
|
212 |
|
|
}
|
213 |
|
|
}
|
214 |
|
|
if (guard_failed) {
|
215 |
|
|
TclDumpMemoryInfo (stderr);
|
216 |
|
|
fprintf(stderr, "low guard failed at %lx, %s %d\n",
|
217 |
|
|
(long unsigned int) memHeaderP->body, file, line);
|
218 |
|
|
fflush(stderr); /* In case name pointer is bad. */
|
219 |
|
|
fprintf(stderr, "%ld bytes allocated at (%s %d)\n", memHeaderP->length,
|
220 |
|
|
memHeaderP->file, memHeaderP->line);
|
221 |
|
|
panic ("Memory validation failure");
|
222 |
|
|
}
|
223 |
|
|
|
224 |
|
|
hiPtr = (unsigned char *)memHeaderP->body + memHeaderP->length;
|
225 |
|
|
for (idx = 0; idx < HIGH_GUARD_SIZE; idx++) {
|
226 |
|
|
byte = *(hiPtr + idx);
|
227 |
|
|
if (byte != GUARD_VALUE) {
|
228 |
|
|
guard_failed = TRUE;
|
229 |
|
|
fflush (stdout);
|
230 |
|
|
byte &= 0xff;
|
231 |
|
|
fprintf(stderr, "hi guard byte %d is 0x%x \t%c\n", idx, byte,
|
232 |
|
|
(isprint(UCHAR(byte)) ? byte : ' ')); /* INTL: bytes */
|
233 |
|
|
}
|
234 |
|
|
}
|
235 |
|
|
|
236 |
|
|
if (guard_failed) {
|
237 |
|
|
TclDumpMemoryInfo (stderr);
|
238 |
|
|
fprintf(stderr, "high guard failed at %lx, %s %d\n",
|
239 |
|
|
(long unsigned int) memHeaderP->body, file, line);
|
240 |
|
|
fflush(stderr); /* In case name pointer is bad. */
|
241 |
|
|
fprintf(stderr, "%ld bytes allocated at (%s %d)\n",
|
242 |
|
|
memHeaderP->length, memHeaderP->file,
|
243 |
|
|
memHeaderP->line);
|
244 |
|
|
panic("Memory validation failure");
|
245 |
|
|
}
|
246 |
|
|
|
247 |
|
|
if (nukeGuards) {
|
248 |
|
|
memset ((char *) memHeaderP->low_guard, 0, LOW_GUARD_SIZE);
|
249 |
|
|
memset ((char *) hiPtr, 0, HIGH_GUARD_SIZE);
|
250 |
|
|
}
|
251 |
|
|
|
252 |
|
|
}
|
253 |
|
|
|
254 |
|
|
/*
|
255 |
|
|
*----------------------------------------------------------------------
|
256 |
|
|
*
|
257 |
|
|
* Tcl_ValidateAllMemory --
|
258 |
|
|
* Validates guard regions for all allocated memory.
|
259 |
|
|
*
|
260 |
|
|
*----------------------------------------------------------------------
|
261 |
|
|
*/
|
262 |
|
|
void
|
263 |
|
|
Tcl_ValidateAllMemory (file, line)
|
264 |
|
|
char *file;
|
265 |
|
|
int line;
|
266 |
|
|
{
|
267 |
|
|
struct mem_header *memScanP;
|
268 |
|
|
|
269 |
|
|
if (!ckallocInit) {
|
270 |
|
|
TclInitDbCkalloc();
|
271 |
|
|
}
|
272 |
|
|
Tcl_MutexLock(ckallocMutexPtr);
|
273 |
|
|
for (memScanP = allocHead; memScanP != NULL; memScanP = memScanP->flink) {
|
274 |
|
|
ValidateMemory(memScanP, file, line, FALSE);
|
275 |
|
|
}
|
276 |
|
|
Tcl_MutexUnlock(ckallocMutexPtr);
|
277 |
|
|
}
|
278 |
|
|
|
279 |
|
|
/*
|
280 |
|
|
*----------------------------------------------------------------------
|
281 |
|
|
*
|
282 |
|
|
* Tcl_DumpActiveMemory --
|
283 |
|
|
* Displays all allocated memory to stderr.
|
284 |
|
|
*
|
285 |
|
|
* Results:
|
286 |
|
|
* Return TCL_ERROR if an error accessing the file occures, `errno'
|
287 |
|
|
* will have the file error number left in it.
|
288 |
|
|
*----------------------------------------------------------------------
|
289 |
|
|
*/
|
290 |
|
|
int
|
291 |
|
|
Tcl_DumpActiveMemory (fileName)
|
292 |
|
|
char *fileName;
|
293 |
|
|
{
|
294 |
|
|
FILE *fileP;
|
295 |
|
|
struct mem_header *memScanP;
|
296 |
|
|
char *address;
|
297 |
|
|
|
298 |
|
|
if (fileName == NULL) {
|
299 |
|
|
fileP = stderr;
|
300 |
|
|
} else {
|
301 |
|
|
fileP = fopen(fileName, "w");
|
302 |
|
|
if (fileP == NULL) {
|
303 |
|
|
return TCL_ERROR;
|
304 |
|
|
}
|
305 |
|
|
}
|
306 |
|
|
|
307 |
|
|
Tcl_MutexLock(ckallocMutexPtr);
|
308 |
|
|
for (memScanP = allocHead; memScanP != NULL; memScanP = memScanP->flink) {
|
309 |
|
|
address = &memScanP->body [0];
|
310 |
|
|
fprintf(fileP, "%8lx - %8lx %7ld @ %s %d %s",
|
311 |
|
|
(long unsigned int) address,
|
312 |
|
|
(long unsigned int) address + memScanP->length - 1,
|
313 |
|
|
memScanP->length, memScanP->file, memScanP->line,
|
314 |
|
|
(memScanP->tagPtr == NULL) ? "" : memScanP->tagPtr->string);
|
315 |
|
|
(void) fputc('\n', fileP);
|
316 |
|
|
}
|
317 |
|
|
Tcl_MutexUnlock(ckallocMutexPtr);
|
318 |
|
|
|
319 |
|
|
if (fileP != stderr) {
|
320 |
|
|
fclose (fileP);
|
321 |
|
|
}
|
322 |
|
|
return TCL_OK;
|
323 |
|
|
}
|
324 |
|
|
|
325 |
|
|
/*
|
326 |
|
|
*----------------------------------------------------------------------
|
327 |
|
|
*
|
328 |
|
|
* Tcl_DbCkalloc - debugging ckalloc
|
329 |
|
|
*
|
330 |
|
|
* Allocate the requested amount of space plus some extra for
|
331 |
|
|
* guard bands at both ends of the request, plus a size, panicing
|
332 |
|
|
* if there isn't enough space, then write in the guard bands
|
333 |
|
|
* and return the address of the space in the middle that the
|
334 |
|
|
* user asked for.
|
335 |
|
|
*
|
336 |
|
|
* The second and third arguments are file and line, these contain
|
337 |
|
|
* the filename and line number corresponding to the caller.
|
338 |
|
|
* These are sent by the ckalloc macro; it uses the preprocessor
|
339 |
|
|
* autodefines __FILE__ and __LINE__.
|
340 |
|
|
*
|
341 |
|
|
*----------------------------------------------------------------------
|
342 |
|
|
*/
|
343 |
|
|
char *
|
344 |
|
|
Tcl_DbCkalloc(size, file, line)
|
345 |
|
|
unsigned int size;
|
346 |
|
|
char *file;
|
347 |
|
|
int line;
|
348 |
|
|
{
|
349 |
|
|
struct mem_header *result;
|
350 |
|
|
|
351 |
|
|
if (validate_memory)
|
352 |
|
|
Tcl_ValidateAllMemory (file, line);
|
353 |
|
|
|
354 |
|
|
result = (struct mem_header *) TclpAlloc((unsigned)size +
|
355 |
|
|
sizeof(struct mem_header) + HIGH_GUARD_SIZE);
|
356 |
|
|
if (result == NULL) {
|
357 |
|
|
fflush(stdout);
|
358 |
|
|
TclDumpMemoryInfo(stderr);
|
359 |
|
|
panic("unable to alloc %d bytes, %s line %d", size, file, line);
|
360 |
|
|
}
|
361 |
|
|
|
362 |
|
|
/*
|
363 |
|
|
* Fill in guard zones and size. Also initialize the contents of
|
364 |
|
|
* the block with bogus bytes to detect uses of initialized data.
|
365 |
|
|
* Link into allocated list.
|
366 |
|
|
*/
|
367 |
|
|
if (init_malloced_bodies) {
|
368 |
|
|
memset ((VOID *) result, GUARD_VALUE,
|
369 |
|
|
size + sizeof(struct mem_header) + HIGH_GUARD_SIZE);
|
370 |
|
|
} else {
|
371 |
|
|
memset ((char *) result->low_guard, GUARD_VALUE, LOW_GUARD_SIZE);
|
372 |
|
|
memset (result->body + size, GUARD_VALUE, HIGH_GUARD_SIZE);
|
373 |
|
|
}
|
374 |
|
|
if (!ckallocInit) {
|
375 |
|
|
TclInitDbCkalloc();
|
376 |
|
|
}
|
377 |
|
|
Tcl_MutexLock(ckallocMutexPtr);
|
378 |
|
|
result->length = size;
|
379 |
|
|
result->tagPtr = curTagPtr;
|
380 |
|
|
if (curTagPtr != NULL) {
|
381 |
|
|
curTagPtr->refCount++;
|
382 |
|
|
}
|
383 |
|
|
result->file = file;
|
384 |
|
|
result->line = line;
|
385 |
|
|
result->flink = allocHead;
|
386 |
|
|
result->blink = NULL;
|
387 |
|
|
|
388 |
|
|
if (allocHead != NULL)
|
389 |
|
|
allocHead->blink = result;
|
390 |
|
|
allocHead = result;
|
391 |
|
|
|
392 |
|
|
total_mallocs++;
|
393 |
|
|
if (trace_on_at_malloc && (total_mallocs >= trace_on_at_malloc)) {
|
394 |
|
|
(void) fflush(stdout);
|
395 |
|
|
fprintf(stderr, "reached malloc trace enable point (%d)\n",
|
396 |
|
|
total_mallocs);
|
397 |
|
|
fflush(stderr);
|
398 |
|
|
alloc_tracing = TRUE;
|
399 |
|
|
trace_on_at_malloc = 0;
|
400 |
|
|
}
|
401 |
|
|
|
402 |
|
|
if (alloc_tracing)
|
403 |
|
|
fprintf(stderr,"ckalloc %lx %d %s %d\n",
|
404 |
|
|
(long unsigned int) result->body, size, file, line);
|
405 |
|
|
|
406 |
|
|
if (break_on_malloc && (total_mallocs >= break_on_malloc)) {
|
407 |
|
|
break_on_malloc = 0;
|
408 |
|
|
(void) fflush(stdout);
|
409 |
|
|
fprintf(stderr,"reached malloc break limit (%d)\n",
|
410 |
|
|
total_mallocs);
|
411 |
|
|
fprintf(stderr, "program will now enter C debugger\n");
|
412 |
|
|
(void) fflush(stderr);
|
413 |
|
|
abort();
|
414 |
|
|
}
|
415 |
|
|
|
416 |
|
|
current_malloc_packets++;
|
417 |
|
|
if (current_malloc_packets > maximum_malloc_packets)
|
418 |
|
|
maximum_malloc_packets = current_malloc_packets;
|
419 |
|
|
current_bytes_malloced += size;
|
420 |
|
|
if (current_bytes_malloced > maximum_bytes_malloced)
|
421 |
|
|
maximum_bytes_malloced = current_bytes_malloced;
|
422 |
|
|
|
423 |
|
|
Tcl_MutexUnlock(ckallocMutexPtr);
|
424 |
|
|
|
425 |
|
|
return result->body;
|
426 |
|
|
}
|
427 |
|
|
|
428 |
|
|
/*
|
429 |
|
|
*----------------------------------------------------------------------
|
430 |
|
|
*
|
431 |
|
|
* Tcl_DbCkfree - debugging ckfree
|
432 |
|
|
*
|
433 |
|
|
* Verify that the low and high guards are intact, and if so
|
434 |
|
|
* then free the buffer else panic.
|
435 |
|
|
*
|
436 |
|
|
* The guards are erased after being checked to catch duplicate
|
437 |
|
|
* frees.
|
438 |
|
|
*
|
439 |
|
|
* The second and third arguments are file and line, these contain
|
440 |
|
|
* the filename and line number corresponding to the caller.
|
441 |
|
|
* These are sent by the ckfree macro; it uses the preprocessor
|
442 |
|
|
* autodefines __FILE__ and __LINE__.
|
443 |
|
|
*
|
444 |
|
|
*----------------------------------------------------------------------
|
445 |
|
|
*/
|
446 |
|
|
|
447 |
|
|
int
|
448 |
|
|
Tcl_DbCkfree(ptr, file, line)
|
449 |
|
|
char *ptr;
|
450 |
|
|
char *file;
|
451 |
|
|
int line;
|
452 |
|
|
{
|
453 |
|
|
struct mem_header *memp;
|
454 |
|
|
|
455 |
|
|
if (ptr == NULL) {
|
456 |
|
|
return 0;
|
457 |
|
|
}
|
458 |
|
|
|
459 |
|
|
/*
|
460 |
|
|
* The following cast is *very* tricky. Must convert the pointer
|
461 |
|
|
* to an integer before doing arithmetic on it, because otherwise
|
462 |
|
|
* the arithmetic will be done differently (and incorrectly) on
|
463 |
|
|
* word-addressed machines such as Crays (will subtract only bytes,
|
464 |
|
|
* even though BODY_OFFSET is in words on these machines).
|
465 |
|
|
*/
|
466 |
|
|
|
467 |
|
|
memp = (struct mem_header *) (((unsigned long) ptr) - BODY_OFFSET);
|
468 |
|
|
|
469 |
|
|
if (alloc_tracing) {
|
470 |
|
|
fprintf(stderr, "ckfree %lx %ld %s %d\n",
|
471 |
|
|
(long unsigned int) memp->body, memp->length, file, line);
|
472 |
|
|
}
|
473 |
|
|
|
474 |
|
|
if (validate_memory) {
|
475 |
|
|
Tcl_ValidateAllMemory(file, line);
|
476 |
|
|
}
|
477 |
|
|
|
478 |
|
|
Tcl_MutexLock(ckallocMutexPtr);
|
479 |
|
|
ValidateMemory(memp, file, line, TRUE);
|
480 |
|
|
if (init_malloced_bodies) {
|
481 |
|
|
memset((VOID *) ptr, GUARD_VALUE, (size_t) memp->length);
|
482 |
|
|
}
|
483 |
|
|
|
484 |
|
|
total_frees++;
|
485 |
|
|
current_malloc_packets--;
|
486 |
|
|
current_bytes_malloced -= memp->length;
|
487 |
|
|
|
488 |
|
|
if (memp->tagPtr != NULL) {
|
489 |
|
|
memp->tagPtr->refCount--;
|
490 |
|
|
if ((memp->tagPtr->refCount == 0) && (curTagPtr != memp->tagPtr)) {
|
491 |
|
|
TclpFree((char *) memp->tagPtr);
|
492 |
|
|
}
|
493 |
|
|
}
|
494 |
|
|
|
495 |
|
|
/*
|
496 |
|
|
* Delink from allocated list
|
497 |
|
|
*/
|
498 |
|
|
if (memp->flink != NULL)
|
499 |
|
|
memp->flink->blink = memp->blink;
|
500 |
|
|
if (memp->blink != NULL)
|
501 |
|
|
memp->blink->flink = memp->flink;
|
502 |
|
|
if (allocHead == memp)
|
503 |
|
|
allocHead = memp->flink;
|
504 |
|
|
TclpFree((char *) memp);
|
505 |
|
|
Tcl_MutexUnlock(ckallocMutexPtr);
|
506 |
|
|
|
507 |
|
|
return 0;
|
508 |
|
|
}
|
509 |
|
|
|
510 |
|
|
/*
|
511 |
|
|
*--------------------------------------------------------------------
|
512 |
|
|
*
|
513 |
|
|
* Tcl_DbCkrealloc - debugging ckrealloc
|
514 |
|
|
*
|
515 |
|
|
* Reallocate a chunk of memory by allocating a new one of the
|
516 |
|
|
* right size, copying the old data to the new location, and then
|
517 |
|
|
* freeing the old memory space, using all the memory checking
|
518 |
|
|
* features of this package.
|
519 |
|
|
*
|
520 |
|
|
*--------------------------------------------------------------------
|
521 |
|
|
*/
|
522 |
|
|
char *
|
523 |
|
|
Tcl_DbCkrealloc(ptr, size, file, line)
|
524 |
|
|
char *ptr;
|
525 |
|
|
unsigned int size;
|
526 |
|
|
char *file;
|
527 |
|
|
int line;
|
528 |
|
|
{
|
529 |
|
|
char *new;
|
530 |
|
|
unsigned int copySize;
|
531 |
|
|
struct mem_header *memp;
|
532 |
|
|
|
533 |
|
|
if (ptr == NULL) {
|
534 |
|
|
return Tcl_DbCkalloc(size, file, line);
|
535 |
|
|
}
|
536 |
|
|
|
537 |
|
|
/*
|
538 |
|
|
* See comment from Tcl_DbCkfree before you change the following
|
539 |
|
|
* line.
|
540 |
|
|
*/
|
541 |
|
|
|
542 |
|
|
memp = (struct mem_header *) (((unsigned long) ptr) - BODY_OFFSET);
|
543 |
|
|
|
544 |
|
|
copySize = size;
|
545 |
|
|
if (copySize > (unsigned int) memp->length) {
|
546 |
|
|
copySize = memp->length;
|
547 |
|
|
}
|
548 |
|
|
new = Tcl_DbCkalloc(size, file, line);
|
549 |
|
|
memcpy((VOID *) new, (VOID *) ptr, (size_t) copySize);
|
550 |
|
|
Tcl_DbCkfree(ptr, file, line);
|
551 |
|
|
return new;
|
552 |
|
|
}
|
553 |
|
|
|
554 |
|
|
|
555 |
|
|
/*
|
556 |
|
|
*----------------------------------------------------------------------
|
557 |
|
|
*
|
558 |
|
|
* Tcl_Alloc, et al. --
|
559 |
|
|
*
|
560 |
|
|
* These functions are defined in terms of the debugging versions
|
561 |
|
|
* when TCL_MEM_DEBUG is set.
|
562 |
|
|
*
|
563 |
|
|
* Results:
|
564 |
|
|
* Same as the debug versions.
|
565 |
|
|
*
|
566 |
|
|
* Side effects:
|
567 |
|
|
* Same as the debug versions.
|
568 |
|
|
*
|
569 |
|
|
*----------------------------------------------------------------------
|
570 |
|
|
*/
|
571 |
|
|
|
572 |
|
|
#undef Tcl_Alloc
|
573 |
|
|
#undef Tcl_Free
|
574 |
|
|
#undef Tcl_Realloc
|
575 |
|
|
|
576 |
|
|
char *
|
577 |
|
|
Tcl_Alloc(size)
|
578 |
|
|
unsigned int size;
|
579 |
|
|
{
|
580 |
|
|
return Tcl_DbCkalloc(size, "unknown", 0);
|
581 |
|
|
}
|
582 |
|
|
|
583 |
|
|
void
|
584 |
|
|
Tcl_Free(ptr)
|
585 |
|
|
char *ptr;
|
586 |
|
|
{
|
587 |
|
|
Tcl_DbCkfree(ptr, "unknown", 0);
|
588 |
|
|
}
|
589 |
|
|
|
590 |
|
|
char *
|
591 |
|
|
Tcl_Realloc(ptr, size)
|
592 |
|
|
char *ptr;
|
593 |
|
|
unsigned int size;
|
594 |
|
|
{
|
595 |
|
|
return Tcl_DbCkrealloc(ptr, size, "unknown", 0);
|
596 |
|
|
}
|
597 |
|
|
|
598 |
|
|
/*
|
599 |
|
|
*----------------------------------------------------------------------
|
600 |
|
|
*
|
601 |
|
|
* MemoryCmd --
|
602 |
|
|
* Implements the TCL memory command:
|
603 |
|
|
* memory info
|
604 |
|
|
* memory display
|
605 |
|
|
* break_on_malloc count
|
606 |
|
|
* trace_on_at_malloc count
|
607 |
|
|
* trace on|off
|
608 |
|
|
* validate on|off
|
609 |
|
|
*
|
610 |
|
|
* Results:
|
611 |
|
|
* Standard TCL results.
|
612 |
|
|
*
|
613 |
|
|
*----------------------------------------------------------------------
|
614 |
|
|
*/
|
615 |
|
|
/* ARGSUSED */
|
616 |
|
|
static int
|
617 |
|
|
MemoryCmd (clientData, interp, argc, argv)
|
618 |
|
|
ClientData clientData;
|
619 |
|
|
Tcl_Interp *interp;
|
620 |
|
|
int argc;
|
621 |
|
|
char **argv;
|
622 |
|
|
{
|
623 |
|
|
char *fileName;
|
624 |
|
|
Tcl_DString buffer;
|
625 |
|
|
int result;
|
626 |
|
|
|
627 |
|
|
if (argc < 2) {
|
628 |
|
|
Tcl_AppendResult(interp, "wrong # args: should be \"",
|
629 |
|
|
argv[0], " option [args..]\"", (char *) NULL);
|
630 |
|
|
return TCL_ERROR;
|
631 |
|
|
}
|
632 |
|
|
|
633 |
|
|
if (strcmp(argv[1],"active") == 0) {
|
634 |
|
|
if (argc != 3) {
|
635 |
|
|
Tcl_AppendResult(interp, "wrong # args: should be \"",
|
636 |
|
|
argv[0], " active file\"", (char *) NULL);
|
637 |
|
|
return TCL_ERROR;
|
638 |
|
|
}
|
639 |
|
|
fileName = Tcl_TranslateFileName(interp, argv[2], &buffer);
|
640 |
|
|
if (fileName == NULL) {
|
641 |
|
|
return TCL_ERROR;
|
642 |
|
|
}
|
643 |
|
|
result = Tcl_DumpActiveMemory (fileName);
|
644 |
|
|
Tcl_DStringFree(&buffer);
|
645 |
|
|
if (result != TCL_OK) {
|
646 |
|
|
Tcl_AppendResult(interp, "error accessing ", argv[2],
|
647 |
|
|
(char *) NULL);
|
648 |
|
|
return TCL_ERROR;
|
649 |
|
|
}
|
650 |
|
|
return TCL_OK;
|
651 |
|
|
}
|
652 |
|
|
if (strcmp(argv[1],"break_on_malloc") == 0) {
|
653 |
|
|
if (argc != 3) {
|
654 |
|
|
goto argError;
|
655 |
|
|
}
|
656 |
|
|
if (Tcl_GetInt(interp, argv[2], &break_on_malloc) != TCL_OK) {
|
657 |
|
|
return TCL_ERROR;
|
658 |
|
|
}
|
659 |
|
|
return TCL_OK;
|
660 |
|
|
}
|
661 |
|
|
if (strcmp(argv[1],"info") == 0) {
|
662 |
|
|
char buffer[400];
|
663 |
|
|
sprintf(buffer, "%-25s %10d\n%-25s %10d\n%-25s %10d\n%-25s %10d\n%-25s %10d\n%-25s %10d\n",
|
664 |
|
|
"total mallocs", total_mallocs, "total frees", total_frees,
|
665 |
|
|
"current packets allocated", current_malloc_packets,
|
666 |
|
|
"current bytes allocated", current_bytes_malloced,
|
667 |
|
|
"maximum packets allocated", maximum_malloc_packets,
|
668 |
|
|
"maximum bytes allocated", maximum_bytes_malloced);
|
669 |
|
|
Tcl_SetResult(interp, buffer, TCL_VOLATILE);
|
670 |
|
|
return TCL_OK;
|
671 |
|
|
}
|
672 |
|
|
if (strcmp(argv[1],"init") == 0) {
|
673 |
|
|
if (argc != 3) {
|
674 |
|
|
goto bad_suboption;
|
675 |
|
|
}
|
676 |
|
|
init_malloced_bodies = (strcmp(argv[2],"on") == 0);
|
677 |
|
|
return TCL_OK;
|
678 |
|
|
}
|
679 |
|
|
if (strcmp(argv[1],"tag") == 0) {
|
680 |
|
|
if (argc != 3) {
|
681 |
|
|
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
|
682 |
|
|
" tag string\"", (char *) NULL);
|
683 |
|
|
return TCL_ERROR;
|
684 |
|
|
}
|
685 |
|
|
if ((curTagPtr != NULL) && (curTagPtr->refCount == 0)) {
|
686 |
|
|
TclpFree((char *) curTagPtr);
|
687 |
|
|
}
|
688 |
|
|
curTagPtr = (MemTag *) TclpAlloc(TAG_SIZE(strlen(argv[2])));
|
689 |
|
|
curTagPtr->refCount = 0;
|
690 |
|
|
strcpy(curTagPtr->string, argv[2]);
|
691 |
|
|
return TCL_OK;
|
692 |
|
|
}
|
693 |
|
|
if (strcmp(argv[1],"trace") == 0) {
|
694 |
|
|
if (argc != 3) {
|
695 |
|
|
goto bad_suboption;
|
696 |
|
|
}
|
697 |
|
|
alloc_tracing = (strcmp(argv[2],"on") == 0);
|
698 |
|
|
return TCL_OK;
|
699 |
|
|
}
|
700 |
|
|
|
701 |
|
|
if (strcmp(argv[1],"trace_on_at_malloc") == 0) {
|
702 |
|
|
if (argc != 3) {
|
703 |
|
|
goto argError;
|
704 |
|
|
}
|
705 |
|
|
if (Tcl_GetInt(interp, argv[2], &trace_on_at_malloc) != TCL_OK) {
|
706 |
|
|
return TCL_ERROR;
|
707 |
|
|
}
|
708 |
|
|
return TCL_OK;
|
709 |
|
|
}
|
710 |
|
|
if (strcmp(argv[1],"validate") == 0) {
|
711 |
|
|
if (argc != 3) {
|
712 |
|
|
goto bad_suboption;
|
713 |
|
|
}
|
714 |
|
|
validate_memory = (strcmp(argv[2],"on") == 0);
|
715 |
|
|
return TCL_OK;
|
716 |
|
|
}
|
717 |
|
|
|
718 |
|
|
Tcl_AppendResult(interp, "bad option \"", argv[1],
|
719 |
|
|
"\": should be active, break_on_malloc, info, init, ",
|
720 |
|
|
"tag, trace, trace_on_at_malloc, or validate", (char *) NULL);
|
721 |
|
|
return TCL_ERROR;
|
722 |
|
|
|
723 |
|
|
argError:
|
724 |
|
|
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
|
725 |
|
|
" ", argv[1], " count\"", (char *) NULL);
|
726 |
|
|
return TCL_ERROR;
|
727 |
|
|
|
728 |
|
|
bad_suboption:
|
729 |
|
|
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
|
730 |
|
|
" ", argv[1], " on|off\"", (char *) NULL);
|
731 |
|
|
return TCL_ERROR;
|
732 |
|
|
}
|
733 |
|
|
|
734 |
|
|
/*
|
735 |
|
|
*----------------------------------------------------------------------
|
736 |
|
|
*
|
737 |
|
|
* CheckmemCmd --
|
738 |
|
|
*
|
739 |
|
|
* This is the command procedure for the "checkmem" command, which
|
740 |
|
|
* causes the application to exit after printing information about
|
741 |
|
|
* memory usage to the file passed to this command as its first
|
742 |
|
|
* argument.
|
743 |
|
|
*
|
744 |
|
|
* Results:
|
745 |
|
|
* Returns a standard Tcl completion code.
|
746 |
|
|
*
|
747 |
|
|
* Side effects:
|
748 |
|
|
* None.
|
749 |
|
|
*
|
750 |
|
|
*----------------------------------------------------------------------
|
751 |
|
|
*/
|
752 |
|
|
|
753 |
|
|
static int
|
754 |
|
|
CheckmemCmd(clientData, interp, argc, argv)
|
755 |
|
|
ClientData clientData; /* Not used. */
|
756 |
|
|
Tcl_Interp *interp; /* Interpreter for evaluation. */
|
757 |
|
|
int argc; /* Number of arguments. */
|
758 |
|
|
char *argv[]; /* String values of arguments. */
|
759 |
|
|
{
|
760 |
|
|
if (argc != 2) {
|
761 |
|
|
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
|
762 |
|
|
" fileName\"", (char *) NULL);
|
763 |
|
|
return TCL_ERROR;
|
764 |
|
|
}
|
765 |
|
|
tclMemDumpFileName = dumpFile;
|
766 |
|
|
strcpy(tclMemDumpFileName, argv[1]);
|
767 |
|
|
return TCL_OK;
|
768 |
|
|
}
|
769 |
|
|
|
770 |
|
|
/*
|
771 |
|
|
*----------------------------------------------------------------------
|
772 |
|
|
*
|
773 |
|
|
* Tcl_InitMemory --
|
774 |
|
|
* Initialize the memory command.
|
775 |
|
|
*
|
776 |
|
|
*----------------------------------------------------------------------
|
777 |
|
|
*/
|
778 |
|
|
void
|
779 |
|
|
Tcl_InitMemory(interp)
|
780 |
|
|
Tcl_Interp *interp;
|
781 |
|
|
{
|
782 |
|
|
TclInitDbCkalloc();
|
783 |
|
|
Tcl_CreateCommand (interp, "memory", MemoryCmd, (ClientData) NULL,
|
784 |
|
|
(Tcl_CmdDeleteProc *) NULL);
|
785 |
|
|
Tcl_CreateCommand(interp, "checkmem", CheckmemCmd, (ClientData) 0,
|
786 |
|
|
(Tcl_CmdDeleteProc *) NULL);
|
787 |
|
|
}
|
788 |
|
|
|
789 |
|
|
|
790 |
|
|
#else /* TCL_MEM_DEBUG */
|
791 |
|
|
|
792 |
|
|
/* This is the !TCL_MEM_DEBUG case */
|
793 |
|
|
|
794 |
|
|
#undef Tcl_InitMemory
|
795 |
|
|
#undef Tcl_DumpActiveMemory
|
796 |
|
|
#undef Tcl_ValidateAllMemory
|
797 |
|
|
|
798 |
|
|
|
799 |
|
|
/*
|
800 |
|
|
*----------------------------------------------------------------------
|
801 |
|
|
*
|
802 |
|
|
* Tcl_Alloc --
|
803 |
|
|
* Interface to TclpAlloc when TCL_MEM_DEBUG is disabled. It does check
|
804 |
|
|
* that memory was actually allocated.
|
805 |
|
|
*
|
806 |
|
|
*----------------------------------------------------------------------
|
807 |
|
|
*/
|
808 |
|
|
|
809 |
|
|
char *
|
810 |
|
|
Tcl_Alloc (size)
|
811 |
|
|
unsigned int size;
|
812 |
|
|
{
|
813 |
|
|
char *result;
|
814 |
|
|
|
815 |
|
|
result = TclpAlloc(size);
|
816 |
|
|
/*
|
817 |
|
|
* Most systems will not alloc(0), instead bumping it to one so
|
818 |
|
|
* that NULL isn't returned. Some systems (AIX, Tru64) will alloc(0)
|
819 |
|
|
* by returning NULL, so we have to check that the NULL we get is
|
820 |
|
|
* not in response to alloc(0).
|
821 |
|
|
*
|
822 |
|
|
* The ANSI spec actually says that systems either return NULL *or*
|
823 |
|
|
* a special pointer on failure, but we only check for NULL
|
824 |
|
|
*/
|
825 |
|
|
if ((result == NULL) && size) {
|
826 |
|
|
panic("unable to alloc %d bytes", size);
|
827 |
|
|
}
|
828 |
|
|
return result;
|
829 |
|
|
}
|
830 |
|
|
|
831 |
|
|
char *
|
832 |
|
|
Tcl_DbCkalloc(size, file, line)
|
833 |
|
|
unsigned int size;
|
834 |
|
|
char *file;
|
835 |
|
|
int line;
|
836 |
|
|
{
|
837 |
|
|
char *result;
|
838 |
|
|
|
839 |
|
|
result = (char *) TclpAlloc(size);
|
840 |
|
|
|
841 |
|
|
if ((result == NULL) && size) {
|
842 |
|
|
fflush(stdout);
|
843 |
|
|
panic("unable to alloc %d bytes, %s line %d", size, file, line);
|
844 |
|
|
}
|
845 |
|
|
return result;
|
846 |
|
|
}
|
847 |
|
|
|
848 |
|
|
|
849 |
|
|
/*
|
850 |
|
|
*----------------------------------------------------------------------
|
851 |
|
|
*
|
852 |
|
|
* Tcl_Realloc --
|
853 |
|
|
* Interface to TclpRealloc when TCL_MEM_DEBUG is disabled. It does
|
854 |
|
|
* check that memory was actually allocated.
|
855 |
|
|
*
|
856 |
|
|
*----------------------------------------------------------------------
|
857 |
|
|
*/
|
858 |
|
|
|
859 |
|
|
char *
|
860 |
|
|
Tcl_Realloc(ptr, size)
|
861 |
|
|
char *ptr;
|
862 |
|
|
unsigned int size;
|
863 |
|
|
{
|
864 |
|
|
char *result;
|
865 |
|
|
|
866 |
|
|
result = TclpRealloc(ptr, size);
|
867 |
|
|
|
868 |
|
|
if ((result == NULL) && size) {
|
869 |
|
|
panic("unable to realloc %d bytes", size);
|
870 |
|
|
}
|
871 |
|
|
return result;
|
872 |
|
|
}
|
873 |
|
|
|
874 |
|
|
char *
|
875 |
|
|
Tcl_DbCkrealloc(ptr, size, file, line)
|
876 |
|
|
char *ptr;
|
877 |
|
|
unsigned int size;
|
878 |
|
|
char *file;
|
879 |
|
|
int line;
|
880 |
|
|
{
|
881 |
|
|
char *result;
|
882 |
|
|
|
883 |
|
|
result = (char *) TclpRealloc(ptr, size);
|
884 |
|
|
|
885 |
|
|
if ((result == NULL) && size) {
|
886 |
|
|
fflush(stdout);
|
887 |
|
|
panic("unable to realloc %d bytes, %s line %d", size, file, line);
|
888 |
|
|
}
|
889 |
|
|
return result;
|
890 |
|
|
}
|
891 |
|
|
|
892 |
|
|
/*
|
893 |
|
|
*----------------------------------------------------------------------
|
894 |
|
|
*
|
895 |
|
|
* Tcl_Free --
|
896 |
|
|
* Interface to TclpFree when TCL_MEM_DEBUG is disabled. Done here
|
897 |
|
|
* rather in the macro to keep some modules from being compiled with
|
898 |
|
|
* TCL_MEM_DEBUG enabled and some with it disabled.
|
899 |
|
|
*
|
900 |
|
|
*----------------------------------------------------------------------
|
901 |
|
|
*/
|
902 |
|
|
|
903 |
|
|
void
|
904 |
|
|
Tcl_Free (ptr)
|
905 |
|
|
char *ptr;
|
906 |
|
|
{
|
907 |
|
|
TclpFree(ptr);
|
908 |
|
|
}
|
909 |
|
|
|
910 |
|
|
int
|
911 |
|
|
Tcl_DbCkfree(ptr, file, line)
|
912 |
|
|
char *ptr;
|
913 |
|
|
char *file;
|
914 |
|
|
int line;
|
915 |
|
|
{
|
916 |
|
|
TclpFree(ptr);
|
917 |
|
|
return 0;
|
918 |
|
|
}
|
919 |
|
|
|
920 |
|
|
/*
|
921 |
|
|
*----------------------------------------------------------------------
|
922 |
|
|
*
|
923 |
|
|
* Tcl_InitMemory --
|
924 |
|
|
* Dummy initialization for memory command, which is only available
|
925 |
|
|
* if TCL_MEM_DEBUG is on.
|
926 |
|
|
*
|
927 |
|
|
*----------------------------------------------------------------------
|
928 |
|
|
*/
|
929 |
|
|
/* ARGSUSED */
|
930 |
|
|
void
|
931 |
|
|
Tcl_InitMemory(interp)
|
932 |
|
|
Tcl_Interp *interp;
|
933 |
|
|
{
|
934 |
|
|
}
|
935 |
|
|
|
936 |
|
|
int
|
937 |
|
|
Tcl_DumpActiveMemory(fileName)
|
938 |
|
|
char *fileName;
|
939 |
|
|
{
|
940 |
|
|
return TCL_OK;
|
941 |
|
|
}
|
942 |
|
|
|
943 |
|
|
void
|
944 |
|
|
Tcl_ValidateAllMemory(file, line)
|
945 |
|
|
char *file;
|
946 |
|
|
int line;
|
947 |
|
|
{
|
948 |
|
|
}
|
949 |
|
|
|
950 |
|
|
void
|
951 |
|
|
TclDumpMemoryInfo(outFile)
|
952 |
|
|
FILE *outFile;
|
953 |
|
|
{
|
954 |
|
|
}
|
955 |
|
|
|
956 |
|
|
#endif /* TCL_MEM_DEBUG */
|
957 |
|
|
|
958 |
|
|
/*
|
959 |
|
|
*---------------------------------------------------------------------------
|
960 |
|
|
*
|
961 |
|
|
* TclFinalizeMemorySubsystem --
|
962 |
|
|
*
|
963 |
|
|
* This procedure is called to finalize all the structures that
|
964 |
|
|
* are used by the memory allocator on a per-process basis.
|
965 |
|
|
*
|
966 |
|
|
* Results:
|
967 |
|
|
* None.
|
968 |
|
|
*
|
969 |
|
|
* Side effects:
|
970 |
|
|
* This subsystem is self-initializing, since memory can be
|
971 |
|
|
* allocated before Tcl is formally initialized. After this call,
|
972 |
|
|
* this subsystem has been reset to its initial state and is
|
973 |
|
|
* usable again.
|
974 |
|
|
*
|
975 |
|
|
*---------------------------------------------------------------------------
|
976 |
|
|
*/
|
977 |
|
|
|
978 |
|
|
void
|
979 |
|
|
TclFinalizeMemorySubsystem()
|
980 |
|
|
{
|
981 |
|
|
#ifdef TCL_MEM_DEBUG
|
982 |
|
|
Tcl_MutexLock(ckallocMutexPtr);
|
983 |
|
|
if (tclMemDumpFileName != NULL) {
|
984 |
|
|
Tcl_DumpActiveMemory(tclMemDumpFileName);
|
985 |
|
|
}
|
986 |
|
|
if (curTagPtr != NULL) {
|
987 |
|
|
TclpFree((char *) curTagPtr);
|
988 |
|
|
}
|
989 |
|
|
allocHead = NULL;
|
990 |
|
|
Tcl_MutexUnlock(ckallocMutexPtr);
|
991 |
|
|
#endif
|
992 |
|
|
|
993 |
|
|
#if USE_TCLALLOC
|
994 |
|
|
TclFinalizeAllocSubsystem();
|
995 |
|
|
#endif
|
996 |
|
|
}
|
997 |
|
|
|
998 |
|
|
|
999 |
|
|
/* $History: tclckalloc.c $
|
1000 |
|
|
*
|
1001 |
|
|
* ***************** Version 1 *****************
|
1002 |
|
|
* User: Dtashley Date: 1/02/01 Time: 1:33a
|
1003 |
|
|
* Created in $/IjuScripter, IjuConsole/Source/Tcl Base
|
1004 |
|
|
* Initial check-in.
|
1005 |
|
|
*/
|
1006 |
|
|
|
1007 |
|
|
/* End of TCLCKALLOC.C */ |