1 /* GLIB - Library of useful routines for C programming
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
18 */
19
20 /*
21 * Modified by the GLib Team and others 1997-2000. See the AUTHORS
22 * file for a list of people on the GLib Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GLib at ftp://ftp.gtk.org/pub/gtk/.
25 */
26
27 /*
28 * MT safe
29 */
30
31 #include "config.h"
32
33 #include <stdlib.h>
34 #include <string.h>
35 #include <signal.h>
36
37 #include "glib.h"
38 #include "gthreadprivate.h"
39 #include "galias.h"
40
41 #define MEM_PROFILE_TABLE_SIZE 4096
42
43
44 /* notes on macros:
45 * having G_DISABLE_CHECKS defined disables use of glib_mem_profiler_table and
46 * g_mem_profile().
47 * REALLOC_0_WORKS is defined if g_realloc (NULL, x) works.
48 * SANE_MALLOC_PROTOS is defined if the systems malloc() and friends functions
49 * match the corresponding GLib prototypes, keep configure.in and gmem.h in sync here.
50 * g_mem_gc_friendly is TRUE, freed memory should be 0-wiped.
51 */
52
53 /* --- prototypes --- */
54 static gboolean g_mem_initialized = FALSE;
55 static void g_mem_init_nomessage (void);
56
57
58 /* --- malloc wrappers --- */
59 #ifndef REALLOC_0_WORKS
60 static gpointer
standard_realloc(gpointer mem,gsize n_bytes)61 standard_realloc (gpointer mem,
62 gsize n_bytes)
63 {
64 if (!mem)
65 return malloc (n_bytes);
66 else
67 return realloc (mem, n_bytes);
68 }
69 #endif /* !REALLOC_0_WORKS */
70
71 #ifdef SANE_MALLOC_PROTOS
72 # define standard_malloc malloc
73 # ifdef REALLOC_0_WORKS
74 # define standard_realloc realloc
75 # endif /* REALLOC_0_WORKS */
76 # define standard_free free
77 # define standard_calloc calloc
78 # define standard_try_malloc malloc
79 # define standard_try_realloc realloc
80 #else /* !SANE_MALLOC_PROTOS */
81 static gpointer
standard_malloc(gsize n_bytes)82 standard_malloc (gsize n_bytes)
83 {
84 return malloc (n_bytes);
85 }
86 # ifdef REALLOC_0_WORKS
87 static gpointer
standard_realloc(gpointer mem,gsize n_bytes)88 standard_realloc (gpointer mem,
89 gsize n_bytes)
90 {
91 return realloc (mem, n_bytes);
92 }
93 # endif /* REALLOC_0_WORKS */
94 static void
standard_free(gpointer mem)95 standard_free (gpointer mem)
96 {
97 free (mem);
98 }
99 static gpointer
standard_calloc(gsize n_blocks,gsize n_bytes)100 standard_calloc (gsize n_blocks,
101 gsize n_bytes)
102 {
103 return calloc (n_blocks, n_bytes);
104 }
105 #define standard_try_malloc standard_malloc
106 #define standard_try_realloc standard_realloc
107 #endif /* !SANE_MALLOC_PROTOS */
108
109
110 /* --- variables --- */
111 static GMemVTable glib_mem_vtable = {
112 standard_malloc,
113 standard_realloc,
114 standard_free,
115 standard_calloc,
116 standard_try_malloc,
117 standard_try_realloc,
118 };
119
120
121 /* --- functions --- */
122 gpointer
g_malloc(gsize n_bytes)123 g_malloc (gsize n_bytes)
124 {
125 if (G_UNLIKELY (!g_mem_initialized))
126 g_mem_init_nomessage();
127 if (G_LIKELY (n_bytes))
128 {
129 gpointer mem;
130
131 mem = glib_mem_vtable.malloc (n_bytes);
132 if (mem)
133 return mem;
134
135 g_error ("%s: failed to allocate %"G_GSIZE_FORMAT" bytes",
136 G_STRLOC, n_bytes);
137 }
138
139 return NULL;
140 }
141
142 gpointer
g_malloc0(gsize n_bytes)143 g_malloc0 (gsize n_bytes)
144 {
145 if (G_UNLIKELY (!g_mem_initialized))
146 g_mem_init_nomessage();
147 if (G_LIKELY (n_bytes))
148 {
149 gpointer mem;
150
151 mem = glib_mem_vtable.calloc (1, n_bytes);
152 if (mem)
153 return mem;
154
155 g_error ("%s: failed to allocate %"G_GSIZE_FORMAT" bytes",
156 G_STRLOC, n_bytes);
157 }
158
159 return NULL;
160 }
161
162 gpointer
g_realloc(gpointer mem,gsize n_bytes)163 g_realloc (gpointer mem,
164 gsize n_bytes)
165 {
166 if (G_UNLIKELY (!g_mem_initialized))
167 g_mem_init_nomessage();
168 if (G_LIKELY (n_bytes))
169 {
170 mem = glib_mem_vtable.realloc (mem, n_bytes);
171 if (mem)
172 return mem;
173
174 g_error ("%s: failed to allocate %"G_GSIZE_FORMAT" bytes",
175 G_STRLOC, n_bytes);
176 }
177
178 if (mem)
179 glib_mem_vtable.free (mem);
180
181 return NULL;
182 }
183
184 void
g_free(gpointer mem)185 g_free (gpointer mem)
186 {
187 if (G_UNLIKELY (!g_mem_initialized))
188 g_mem_init_nomessage();
189 if (G_LIKELY (mem))
190 glib_mem_vtable.free (mem);
191 }
192
193 gpointer
g_try_malloc(gsize n_bytes)194 g_try_malloc (gsize n_bytes)
195 {
196 if (G_UNLIKELY (!g_mem_initialized))
197 g_mem_init_nomessage();
198 if (G_LIKELY (n_bytes))
199 return glib_mem_vtable.try_malloc (n_bytes);
200 else
201 return NULL;
202 }
203
204 gpointer
g_try_malloc0(gsize n_bytes)205 g_try_malloc0 (gsize n_bytes)
206 {
207 gpointer mem;
208
209 mem = g_try_malloc (n_bytes);
210
211 if (mem)
212 memset (mem, 0, n_bytes);
213
214 return mem;
215 }
216
217 gpointer
g_try_realloc(gpointer mem,gsize n_bytes)218 g_try_realloc (gpointer mem,
219 gsize n_bytes)
220 {
221 if (G_UNLIKELY (!g_mem_initialized))
222 g_mem_init_nomessage();
223 if (G_LIKELY (n_bytes))
224 return glib_mem_vtable.try_realloc (mem, n_bytes);
225
226 if (mem)
227 glib_mem_vtable.free (mem);
228
229 return NULL;
230 }
231
232 static gpointer
fallback_calloc(gsize n_blocks,gsize n_block_bytes)233 fallback_calloc (gsize n_blocks,
234 gsize n_block_bytes)
235 {
236 gsize l = n_blocks * n_block_bytes;
237 gpointer mem = glib_mem_vtable.malloc (l);
238
239 if (mem)
240 memset (mem, 0, l);
241
242 return mem;
243 }
244
245 static gboolean vtable_set = FALSE;
246
247 /**
248 * g_mem_is_system_malloc
249 *
250 * Checks whether the allocator used by g_malloc() is the system's
251 * malloc implementation. If it returns %TRUE memory allocated with
252 * malloc() can be used interchangeable with memory allocated using g_malloc().
253 * This function is useful for avoiding an extra copy of allocated memory returned
254 * by a non-GLib-based API.
255 *
256 * A different allocator can be set using g_mem_set_vtable().
257 *
258 * Return value: if %TRUE, malloc() and g_malloc() can be mixed.
259 **/
260 gboolean
g_mem_is_system_malloc(void)261 g_mem_is_system_malloc (void)
262 {
263 return !vtable_set;
264 }
265
266 void
g_mem_set_vtable(GMemVTable * vtable)267 g_mem_set_vtable (GMemVTable *vtable)
268 {
269 if (!vtable_set)
270 {
271 if (vtable->malloc && vtable->realloc && vtable->free)
272 {
273 glib_mem_vtable.malloc = vtable->malloc;
274 glib_mem_vtable.realloc = vtable->realloc;
275 glib_mem_vtable.free = vtable->free;
276 glib_mem_vtable.calloc = vtable->calloc ? vtable->calloc : fallback_calloc;
277 glib_mem_vtable.try_malloc = vtable->try_malloc ? vtable->try_malloc : glib_mem_vtable.malloc;
278 glib_mem_vtable.try_realloc = vtable->try_realloc ? vtable->try_realloc : glib_mem_vtable.realloc;
279 vtable_set = TRUE;
280 }
281 else
282 g_warning (G_STRLOC ": memory allocation vtable lacks one of malloc(), realloc() or free()");
283 }
284 else
285 g_warning (G_STRLOC ": memory allocation vtable can only be set once at startup");
286 }
287
288
289 /* --- memory profiling and checking --- */
290 #ifdef G_DISABLE_CHECKS
291 GMemVTable *glib_mem_profiler_table = &glib_mem_vtable;
292 void
g_mem_profile(void)293 g_mem_profile (void)
294 {
295 }
296 #else /* !G_DISABLE_CHECKS */
297 typedef enum {
298 PROFILER_FREE = 0,
299 PROFILER_ALLOC = 1,
300 PROFILER_RELOC = 2,
301 PROFILER_ZINIT = 4
302 } ProfilerJob;
303 static guint *profile_data = NULL;
304 static gsize profile_allocs = 0;
305 static gsize profile_zinit = 0;
306 static gsize profile_frees = 0;
307 static GMutex *gmem_profile_mutex = NULL;
308 #ifdef G_ENABLE_DEBUG
309 static volatile gsize g_trap_free_size = 0;
310 static volatile gsize g_trap_realloc_size = 0;
311 static volatile gsize g_trap_malloc_size = 0;
312 #endif /* G_ENABLE_DEBUG */
313
314 #define PROFILE_TABLE(f1,f2,f3) ( ( ((f3) << 2) | ((f2) << 1) | (f1) ) * (MEM_PROFILE_TABLE_SIZE + 1))
315
316 static void
profiler_log(ProfilerJob job,gsize n_bytes,gboolean success)317 profiler_log (ProfilerJob job,
318 gsize n_bytes,
319 gboolean success)
320 {
321 g_mutex_lock (gmem_profile_mutex);
322 if (!profile_data)
323 {
324 profile_data = standard_calloc ((MEM_PROFILE_TABLE_SIZE + 1) * 8,
325 sizeof (profile_data[0]));
326 if (!profile_data) /* memory system kiddin' me, eh? */
327 {
328 g_mutex_unlock (gmem_profile_mutex);
329 return;
330 }
331 }
332
333 if (n_bytes < MEM_PROFILE_TABLE_SIZE)
334 profile_data[n_bytes + PROFILE_TABLE ((job & PROFILER_ALLOC) != 0,
335 (job & PROFILER_RELOC) != 0,
336 success != 0)] += 1;
337 else
338 profile_data[MEM_PROFILE_TABLE_SIZE + PROFILE_TABLE ((job & PROFILER_ALLOC) != 0,
339 (job & PROFILER_RELOC) != 0,
340 success != 0)] += 1;
341 if (success)
342 {
343 if (job & PROFILER_ALLOC)
344 {
345 profile_allocs += n_bytes;
346 if (job & PROFILER_ZINIT)
347 profile_zinit += n_bytes;
348 }
349 else
350 profile_frees += n_bytes;
351 }
352 g_mutex_unlock (gmem_profile_mutex);
353 }
354
355 static void
profile_print_locked(guint * local_data,gboolean success)356 profile_print_locked (guint *local_data,
357 gboolean success)
358 {
359 gboolean need_header = TRUE;
360 guint i;
361
362 for (i = 0; i <= MEM_PROFILE_TABLE_SIZE; i++)
363 {
364 glong t_malloc = local_data[i + PROFILE_TABLE (1, 0, success)];
365 glong t_realloc = local_data[i + PROFILE_TABLE (1, 1, success)];
366 glong t_free = local_data[i + PROFILE_TABLE (0, 0, success)];
367 glong t_refree = local_data[i + PROFILE_TABLE (0, 1, success)];
368
369 if (!t_malloc && !t_realloc && !t_free && !t_refree)
370 continue;
371 else if (need_header)
372 {
373 need_header = FALSE;
374 g_print (" blocks of | allocated | freed | allocated | freed | n_bytes \n");
375 g_print (" n_bytes | n_times by | n_times by | n_times by | n_times by | remaining \n");
376 g_print (" | malloc() | free() | realloc() | realloc() | \n");
377 g_print ("===========|============|============|============|============|===========\n");
378 }
379 if (i < MEM_PROFILE_TABLE_SIZE)
380 g_print ("%10u | %10ld | %10ld | %10ld | %10ld |%+11ld\n",
381 i, t_malloc, t_free, t_realloc, t_refree,
382 (t_malloc - t_free + t_realloc - t_refree) * i);
383 else if (i >= MEM_PROFILE_TABLE_SIZE)
384 g_print (" >%6u | %10ld | %10ld | %10ld | %10ld | ***\n",
385 i, t_malloc, t_free, t_realloc, t_refree);
386 }
387 if (need_header)
388 g_print (" --- none ---\n");
389 }
390
391 void
g_mem_profile(void)392 g_mem_profile (void)
393 {
394 guint local_data[(MEM_PROFILE_TABLE_SIZE + 1) * 8 * sizeof (profile_data[0])];
395 gsize local_allocs;
396 gsize local_zinit;
397 gsize local_frees;
398
399 if (G_UNLIKELY (!g_mem_initialized))
400 g_mem_init_nomessage();
401
402 g_mutex_lock (gmem_profile_mutex);
403
404 local_allocs = profile_allocs;
405 local_zinit = profile_zinit;
406 local_frees = profile_frees;
407
408 if (!profile_data)
409 {
410 g_mutex_unlock (gmem_profile_mutex);
411 return;
412 }
413
414 memcpy (local_data, profile_data,
415 (MEM_PROFILE_TABLE_SIZE + 1) * 8 * sizeof (profile_data[0]));
416
417 g_mutex_unlock (gmem_profile_mutex);
418
419 g_print ("GLib Memory statistics (successful operations):\n");
420 profile_print_locked (local_data, TRUE);
421 g_print ("GLib Memory statistics (failing operations):\n");
422 profile_print_locked (local_data, FALSE);
423 g_print ("Total bytes: allocated=%"G_GSIZE_FORMAT", "
424 "zero-initialized=%"G_GSIZE_FORMAT" (%.2f%%), "
425 "freed=%"G_GSIZE_FORMAT" (%.2f%%), "
426 "remaining=%"G_GSIZE_FORMAT"\n",
427 local_allocs,
428 local_zinit,
429 ((gdouble) local_zinit) / local_allocs * 100.0,
430 local_frees,
431 ((gdouble) local_frees) / local_allocs * 100.0,
432 local_allocs - local_frees);
433 }
434
435 static gpointer
profiler_try_malloc(gsize n_bytes)436 profiler_try_malloc (gsize n_bytes)
437 {
438 gsize *p;
439
440 #ifdef G_ENABLE_DEBUG
441 if (g_trap_malloc_size == n_bytes)
442 G_BREAKPOINT ();
443 #endif /* G_ENABLE_DEBUG */
444
445 p = standard_malloc (sizeof (gsize) * 2 + n_bytes);
446
447 if (p)
448 {
449 p[0] = 0; /* free count */
450 p[1] = n_bytes; /* length */
451 profiler_log (PROFILER_ALLOC, n_bytes, TRUE);
452 p += 2;
453 }
454 else
455 profiler_log (PROFILER_ALLOC, n_bytes, FALSE);
456
457 return p;
458 }
459
460 static gpointer
profiler_malloc(gsize n_bytes)461 profiler_malloc (gsize n_bytes)
462 {
463 gpointer mem = profiler_try_malloc (n_bytes);
464
465 if (!mem)
466 g_mem_profile ();
467
468 return mem;
469 }
470
471 static gpointer
profiler_calloc(gsize n_blocks,gsize n_block_bytes)472 profiler_calloc (gsize n_blocks,
473 gsize n_block_bytes)
474 {
475 gsize l = n_blocks * n_block_bytes;
476 gsize *p;
477
478 #ifdef G_ENABLE_DEBUG
479 if (g_trap_malloc_size == l)
480 G_BREAKPOINT ();
481 #endif /* G_ENABLE_DEBUG */
482
483 p = standard_calloc (1, sizeof (gsize) * 2 + l);
484
485 if (p)
486 {
487 p[0] = 0; /* free count */
488 p[1] = l; /* length */
489 profiler_log (PROFILER_ALLOC | PROFILER_ZINIT, l, TRUE);
490 p += 2;
491 }
492 else
493 {
494 profiler_log (PROFILER_ALLOC | PROFILER_ZINIT, l, FALSE);
495 g_mem_profile ();
496 }
497
498 return p;
499 }
500
501 static void
profiler_free(gpointer mem)502 profiler_free (gpointer mem)
503 {
504 gsize *p = mem;
505
506 p -= 2;
507 if (p[0]) /* free count */
508 {
509 g_warning ("free(%p): memory has been freed %"G_GSIZE_FORMAT" times already",
510 p + 2, p[0]);
511 profiler_log (PROFILER_FREE,
512 p[1], /* length */
513 FALSE);
514 }
515 else
516 {
517 #ifdef G_ENABLE_DEBUG
518 if (g_trap_free_size == p[1])
519 G_BREAKPOINT ();
520 #endif /* G_ENABLE_DEBUG */
521
522 profiler_log (PROFILER_FREE,
523 p[1], /* length */
524 TRUE);
525 memset (p + 2, 0xaa, p[1]);
526
527 /* for all those that miss standard_free (p); in this place, yes,
528 * we do leak all memory when profiling, and that is intentional
529 * to catch double frees. patch submissions are futile.
530 */
531 }
532 p[0] += 1;
533 }
534
535 static gpointer
profiler_try_realloc(gpointer mem,gsize n_bytes)536 profiler_try_realloc (gpointer mem,
537 gsize n_bytes)
538 {
539 gsize *p = mem;
540
541 p -= 2;
542
543 #ifdef G_ENABLE_DEBUG
544 if (g_trap_realloc_size == n_bytes)
545 G_BREAKPOINT ();
546 #endif /* G_ENABLE_DEBUG */
547
548 if (mem && p[0]) /* free count */
549 {
550 g_warning ("realloc(%p, %"G_GSIZE_FORMAT"): "
551 "memory has been freed %"G_GSIZE_FORMAT" times already",
552 p + 2, (gsize) n_bytes, p[0]);
553 profiler_log (PROFILER_ALLOC | PROFILER_RELOC, n_bytes, FALSE);
554
555 return NULL;
556 }
557 else
558 {
559 p = standard_realloc (mem ? p : NULL, sizeof (gsize) * 2 + n_bytes);
560
561 if (p)
562 {
563 if (mem)
564 profiler_log (PROFILER_FREE | PROFILER_RELOC, p[1], TRUE);
565 p[0] = 0;
566 p[1] = n_bytes;
567 profiler_log (PROFILER_ALLOC | PROFILER_RELOC, p[1], TRUE);
568 p += 2;
569 }
570 else
571 profiler_log (PROFILER_ALLOC | PROFILER_RELOC, n_bytes, FALSE);
572
573 return p;
574 }
575 }
576
577 static gpointer
profiler_realloc(gpointer mem,gsize n_bytes)578 profiler_realloc (gpointer mem,
579 gsize n_bytes)
580 {
581 mem = profiler_try_realloc (mem, n_bytes);
582
583 if (!mem)
584 g_mem_profile ();
585
586 return mem;
587 }
588
589 static GMemVTable profiler_table = {
590 profiler_malloc,
591 profiler_realloc,
592 profiler_free,
593 profiler_calloc,
594 profiler_try_malloc,
595 profiler_try_realloc,
596 };
597 GMemVTable *glib_mem_profiler_table = &profiler_table;
598
599 #endif /* !G_DISABLE_CHECKS */
600
601 /* --- MemChunks --- */
602 #ifndef G_ALLOC_AND_FREE
603 typedef struct _GAllocator GAllocator;
604 typedef struct _GMemChunk GMemChunk;
605 #define G_ALLOC_ONLY 1
606 #define G_ALLOC_AND_FREE 2
607 #endif
608
609 struct _GMemChunk {
610 guint alloc_size; /* the size of an atom */
611 };
612
613 GMemChunk*
g_mem_chunk_new(const gchar * name,gint atom_size,gsize area_size,gint type)614 g_mem_chunk_new (const gchar *name,
615 gint atom_size,
616 gsize area_size,
617 gint type)
618 {
619 GMemChunk *mem_chunk;
620 g_return_val_if_fail (atom_size > 0, NULL);
621
622 mem_chunk = g_slice_new (GMemChunk);
623 mem_chunk->alloc_size = atom_size;
624 return mem_chunk;
625 }
626
627 void
g_mem_chunk_destroy(GMemChunk * mem_chunk)628 g_mem_chunk_destroy (GMemChunk *mem_chunk)
629 {
630 g_return_if_fail (mem_chunk != NULL);
631
632 g_slice_free (GMemChunk, mem_chunk);
633 }
634
635 gpointer
g_mem_chunk_alloc(GMemChunk * mem_chunk)636 g_mem_chunk_alloc (GMemChunk *mem_chunk)
637 {
638 g_return_val_if_fail (mem_chunk != NULL, NULL);
639
640 return g_slice_alloc (mem_chunk->alloc_size);
641 }
642
643 gpointer
g_mem_chunk_alloc0(GMemChunk * mem_chunk)644 g_mem_chunk_alloc0 (GMemChunk *mem_chunk)
645 {
646 g_return_val_if_fail (mem_chunk != NULL, NULL);
647
648 return g_slice_alloc0 (mem_chunk->alloc_size);
649 }
650
651 void
g_mem_chunk_free(GMemChunk * mem_chunk,gpointer mem)652 g_mem_chunk_free (GMemChunk *mem_chunk,
653 gpointer mem)
654 {
655 g_return_if_fail (mem_chunk != NULL);
656
657 g_slice_free1 (mem_chunk->alloc_size, mem);
658 }
659
g_mem_chunk_clean(GMemChunk * mem_chunk)660 void g_mem_chunk_clean (GMemChunk *mem_chunk) {}
g_mem_chunk_reset(GMemChunk * mem_chunk)661 void g_mem_chunk_reset (GMemChunk *mem_chunk) {}
g_mem_chunk_print(GMemChunk * mem_chunk)662 void g_mem_chunk_print (GMemChunk *mem_chunk) {}
g_mem_chunk_info(void)663 void g_mem_chunk_info (void) {}
g_blow_chunks(void)664 void g_blow_chunks (void) {}
665
666 GAllocator*
g_allocator_new(const gchar * name,guint n_preallocs)667 g_allocator_new (const gchar *name,
668 guint n_preallocs)
669 {
670 static struct _GAllocator {
671 gchar *name;
672 guint16 n_preallocs;
673 guint is_unused : 1;
674 guint type : 4;
675 GAllocator *last;
676 GMemChunk *mem_chunk;
677 gpointer free_list;
678 } dummy = {
679 "GAllocator is deprecated", 1, TRUE, 0, NULL, NULL, NULL,
680 };
681 /* some (broken) GAllocator uses depend on non-NULL allocators */
682 return (void*) &dummy;
683 }
684
685 void
g_allocator_free(GAllocator * allocator)686 g_allocator_free (GAllocator *allocator)
687 {
688 }
689
690 #ifdef ENABLE_GC_FRIENDLY_DEFAULT
691 gboolean g_mem_gc_friendly = TRUE;
692 #else
693 gboolean g_mem_gc_friendly = FALSE;
694 #endif
695
696 static void
g_mem_init_nomessage(void)697 g_mem_init_nomessage (void)
698 {
699 gchar buffer[1024];
700 const gchar *val;
701 const GDebugKey keys[] = {
702 { "gc-friendly", 1 },
703 };
704 gint flags;
705 if (g_mem_initialized)
706 return;
707 /* don't use g_malloc/g_message here */
708 val = _g_getenv_nomalloc ("G_DEBUG", buffer);
709 flags = !val ? 0 : g_parse_debug_string (val, keys, G_N_ELEMENTS (keys));
710 if (flags & 1) /* gc-friendly */
711 {
712 g_mem_gc_friendly = TRUE;
713 }
714 g_mem_initialized = TRUE;
715 }
716
717 void
_g_mem_thread_init_noprivate_nomessage(void)718 _g_mem_thread_init_noprivate_nomessage (void)
719 {
720 /* we may only create mutexes here, locking/
721 * unlocking a mutex does not yet work.
722 */
723 g_mem_init_nomessage();
724 #ifndef G_DISABLE_CHECKS
725 gmem_profile_mutex = g_mutex_new ();
726 #endif
727 }
728
729 #define __G_MEM_C__
730 #include "galiasdef.c"
731