PostgreSQL Source Code: src/backend/utils/mmgr/mcxt.c Source File (original) (raw)
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47
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49static void BogusFree(void *pointer);
50static void *BogusRealloc(void *pointer, Size size, int flags);
53
54
55
56
57#define BOGUS_MCTX(id) \
58 [id].free_p = BogusFree, \
59 [id].realloc = BogusRealloc, \
60 [id].get_chunk_context = BogusGetChunkContext, \
61 [id].get_chunk_space = BogusGetChunkSpace
62
64
74#ifdef MEMORY_CONTEXT_CHECKING
76#endif
77
78
88#ifdef MEMORY_CONTEXT_CHECKING
90#endif
91
92
102#ifdef MEMORY_CONTEXT_CHECKING
104#endif
105
106
116#ifdef MEMORY_CONTEXT_CHECKING
118#endif
119
120
130#ifdef MEMORY_CONTEXT_CHECKING
132#endif
133
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135
136
137
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139
140
152};
153
154#undef BOGUS_MCTX
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195#define AssertNotInCriticalSection(context) \
196 Assert(CritSectionCount == 0 || (context)->allowInCritSection)
197
198
199
200
201
202#define MCXT_METHOD(pointer, method) \
203 mcxt_methods[GetMemoryChunkMethodID(pointer)].method
204
205
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209
212{
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225 header = *((const uint64 *) ((const char *) pointer - sizeof(uint64)));
226
227
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231}
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237
238
241{
243
244
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247 header = *((const uint64 *) ((const char *) pointer - sizeof(uint64)));
248
249
251
252 return header;
253}
254
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271
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278{
279
280 if (curr->firstchild != NULL)
282
283
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285
286
287
288
289
290 while (curr->nextchild == NULL)
291 {
295 }
297}
298
299
300
301
302
303
304
305static void
307{
308 elog(ERROR, "pfree called with invalid pointer %p (header 0x%016" PRIx64 ")",
310}
311
312static void *
314{
315 elog(ERROR, "repalloc called with invalid pointer %p (header 0x%016" PRIx64 ")",
317 return NULL;
318}
319
322{
323 elog(ERROR, "GetMemoryChunkContext called with invalid pointer %p (header 0x%016" PRIx64 ")",
325 return NULL;
326}
327
330{
331 elog(ERROR, "GetMemoryChunkSpace called with invalid pointer %p (header 0x%016" PRIx64 ")",
333 return 0;
334}
335
336
337
338
339
340
341
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347
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358void
360{
362
363
364
365
367 "TopMemoryContext",
369
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371
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378
379
380
381
382
383
384
385
386
387
388
390 "ErrorContext",
391 8 * 1024,
392 8 * 1024,
393 8 * 1024);
395}
396
397
398
399
400
401
402void
404{
406
407
410
411
414}
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420
421void
423{
425
426
428 {
430
431
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437
438
441 }
442}
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450void
452{
454
458 {
460 }
461}
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469
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471void
473{
475
477
478
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484
485
486 curr = context;
487 for (;;)
488 {
490
491
492 while (curr->firstchild != NULL)
494
495
496
497
498
501
502 if (curr == context)
503 break;
504 curr = parent;
505 }
506}
507
508
509
510
511
512
513static void
515{
517
519
521
523
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531
532
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541
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547}
548
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554void
556{
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565}
566
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581void
584{
586
587
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591 context->isReset = false;
592}
593
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600
601
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603
604
605
606void
609{
612
614
617 {
618 if (cur != cb)
619 continue;
620 if (prev)
622 else
624 return;
625 }
627}
628
629
630
631
632
633static void
635{
637
638
639
640
641
642
644 {
647 }
648}
649
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660void
662{
664 context->ident = id;
665}
666
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685void
687{
690
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693 return;
694
695
697 {
699
702 else
703 {
706 }
707
710 }
711
712
714 {
722 }
723 else
724 {
728 }
729}
730
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738
739
740
741
742void
749
750
751
752
753
754
757{
758 return MCXT_METHOD(pointer, get_chunk_context) (pointer);
759}
760
761
762
763
764
765
766
767
768
771{
772 return MCXT_METHOD(pointer, get_chunk_space) (pointer);
773}
774
775
776
777
778
781{
783
784 return context->parent;
785}
786
787
788
789
790
791bool
793{
795
796
797
798
799
801 return false;
802
804}
805
806
807
808
809
812{
814
816
817 if (recurse)
818 {
822 {
823 total += curr->mem_allocated;
824 }
825 }
826
827 return total;
828}
829
830
831
832
833
834void
837{
839
841
842
844
845
849 {
851 }
852}
853
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862void
868
869
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877void
881{
883
885
888
891 "Grand total: %zu bytes in %zu blocks; %zu free (%zu chunks); %zu used\n",
895 else
896 {
897
898
899
900
901
902
903
904
905
906
910 errmsg_internal("Grand total: %zu bytes in %zu blocks; %zu free (%zu chunks); %zu used",
914 }
915}
916
917
918
919
920
921
922
923
924static void
929{
932
934
935
938 &level,
940
941
942
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944
945
946
947
948
952 {
955 {
960 }
961 }
962
963 if (child != NULL)
964 {
965
967
969
971 while (child != NULL)
972 {
976 }
977
979 {
980 for (int i = 0; i < level; i++)
983 "%d more child contexts containing %zu total in %zu blocks; %zu free (%zu chunks); %zu used\n",
990 }
991 else
995 errmsg_internal("level: %d; %d more child contexts containing %zu total in %zu blocks; %zu free (%zu chunks); %zu used",
996 level,
1003
1005 {
1010 }
1011 }
1012}
1013
1014
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1016
1017
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1020
1021static void
1025{
1026 int level = *(int *) passthru;
1027 const char *name = context->name;
1030 int i;
1031
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1033
1034
1035
1036
1038 {
1041 }
1042
1044
1046 {
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1048
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1050
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1052
1054 bool truncated = false;
1055
1058
1059 if (idlen > 100)
1060 {
1062 truncated = true;
1063 }
1064
1065 while (idlen-- > 0)
1066 {
1067 unsigned char c = *ident++;
1068
1069 if (c < ' ')
1070 c = ' ';
1072 }
1074
1075 if (truncated)
1077 }
1078
1080 {
1081 for (i = 1; i < level; i++)
1084 }
1085 else
1091}
1092
1093
1094
1095
1096
1097
1098
1099#ifdef MEMORY_CONTEXT_CHECKING
1100void
1102{
1104 context->methods->check(context);
1105
1109 {
1112 }
1113}
1114#endif
1115
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1147
1148void
1153 const char *name)
1154{
1155
1157
1158
1160 Assert(node != parent);
1161
1162
1163 node->type = tag;
1166 node->parent = parent;
1173
1174
1175 if (parent)
1176 {
1181
1183 }
1184 else
1185 {
1188 }
1189}
1190
1191
1192
1193
1194
1195
1196
1197void *
1199{
1201 {
1206 errmsg("out of memory"),
1207 errdetail("Failed on request of size %zu in memory context \"%s\".",
1208 size, context->name)));
1209 }
1210 return NULL;
1211}
1212
1213
1214
1215
1216
1217
1218void
1220{
1221 elog(ERROR, "invalid memory alloc request size %zu", size);
1222}
1223
1224
1225
1226
1227
1228
1229
1230
1231void *
1233{
1234 void *ret;
1235
1238
1239 context->isReset = false;
1240
1241
1242
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1244
1245
1246
1247
1248
1249
1250
1251 ret = context->methods->alloc(context, size, 0);
1252
1254
1255 return ret;
1256}
1257
1258
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1260
1261
1262
1263
1264
1265void *
1267{
1268 void *ret;
1269
1272
1273 context->isReset = false;
1274
1275 ret = context->methods->alloc(context, size, 0);
1276
1278
1280
1281 return ret;
1282}
1283
1284
1285
1286
1287
1288void *
1290{
1291 void *ret;
1292
1295
1298 elog(ERROR, "invalid memory alloc request size %zu", size);
1299
1300 context->isReset = false;
1301
1302 ret = context->methods->alloc(context, size, flags);
1304 return NULL;
1305
1307
1310
1311 return ret;
1312}
1313
1314
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1322void
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1339void
1341{
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1348
1349
1351 return;
1353
1355 {
1356
1357
1358
1359
1363 errmsg("logging memory contexts of PID %d", MyProcPid)));
1364
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1369
1370
1371
1372
1373
1374
1375
1376
1378 }
1380 {
1382 }
1384}
1385
1386void *
1388{
1389
1390 void *ret;
1392
1395
1396 context->isReset = false;
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408 ret = context->methods->alloc(context, size, 0);
1409
1412
1413 return ret;
1414}
1415
1416void *
1418{
1419
1420 void *ret;
1422
1425
1426 context->isReset = false;
1427
1428 ret = context->methods->alloc(context, size, 0);
1429
1432
1434
1435 return ret;
1436}
1437
1438void *
1440{
1441
1442 void *ret;
1444
1447
1448 context->isReset = false;
1449
1450 ret = context->methods->alloc(context, size, flags);
1452 {
1453
1455 return NULL;
1456 }
1457
1459
1462
1463 return ret;
1464}
1465
1466
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1471
1472
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1481void *
1484{
1489
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1512
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1527
1528#ifdef MEMORY_CONTEXT_CHECKING
1529
1531#endif
1532
1533
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1540
1541
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1548
1549
1550
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1556
1559
1560
1562
1563#ifdef MEMORY_CONTEXT_CHECKING
1565
1567#endif
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1582
1583
1586
1588}
1589
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1600
1601
1602
1603
1604
1605void *
1610
1611
1612
1613
1614
1615void
1617{
1618#ifdef USE_VALGRIND
1620#endif
1621
1623
1625}
1626
1627
1628
1629
1630
1631void *
1633{
1634#if defined(USE_ASSERT_CHECKING) || defined(USE_VALGRIND)
1636#endif
1637 void *ret;
1638
1640
1641
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1655
1657
1658 return ret;
1659}
1660
1661
1662
1663
1664
1665
1666void *
1668{
1669#if defined(USE_ASSERT_CHECKING) || defined(USE_VALGRIND)
1671#endif
1672 void *ret;
1673
1675
1676
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1691 return NULL;
1692
1694
1695 return ret;
1696}
1697
1698
1699
1700
1701
1702
1703void *
1705{
1706 void *ret;
1707
1708
1710 elog(ERROR, "invalid repalloc0 call: oldsize %zu, new size %zu",
1712
1713 ret = repalloc(pointer, size);
1715 return ret;
1716}
1717
1718
1719
1720
1721
1722
1723
1724void *
1726{
1727 void *ret;
1728
1731
1732 context->isReset = false;
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1745
1747
1748 return ret;
1749}
1750
1751
1752
1753
1754
1755
1756void *
1762
1763
1764
1765
1766
1767char *
1769{
1772
1774
1776
1777 return nstr;
1778}
1779
1780char *
1785
1786
1787
1788
1789
1790
1791char *
1793{
1794 char *out;
1795
1797
1800 out[len] = '\0';
1801
1802 return out;
1803}
1804
1805
1806
1807
1808char *
1810{
1811 size_t n;
1812
1814 while (n > 0 && in[n - 1] == '\n')
1815 n--;
1817}
MemoryContext AlignedAllocGetChunkContext(void *pointer)
void * AlignedAllocRealloc(void *pointer, Size size, int flags)
Size AlignedAllocGetChunkSpace(void *pointer)
void AlignedAllocFree(void *pointer)
void AllocSetReset(MemoryContext context)
void * AllocSetRealloc(void *pointer, Size size, int flags)
Size AllocSetGetChunkSpace(void *pointer)
MemoryContext AllocSetGetChunkContext(void *pointer)
void AllocSetStats(MemoryContext context, MemoryStatsPrintFunc printfunc, void *passthru, MemoryContextCounters *totals, bool print_to_stderr)
bool AllocSetIsEmpty(MemoryContext context)
void * AllocSetAlloc(MemoryContext context, Size size, int flags)
void AllocSetFree(void *pointer)
void AllocSetDelete(MemoryContext context)
void BumpFree(void *pointer)
void BumpDelete(MemoryContext context)
Size BumpGetChunkSpace(void *pointer)
void BumpStats(MemoryContext context, MemoryStatsPrintFunc printfunc, void *passthru, MemoryContextCounters *totals, bool print_to_stderr)
MemoryContext BumpGetChunkContext(void *pointer)
void BumpReset(MemoryContext context)
bool BumpIsEmpty(MemoryContext context)
void * BumpRealloc(void *pointer, Size size, int flags)
void * BumpAlloc(MemoryContext context, Size size, int flags)
#define TYPEALIGN(ALIGNVAL, LEN)
#define Assert(condition)
#define MemSetAligned(start, val, len)
#define fprintf(file, fmt, msg)
int errcode(int sqlerrcode)
int int errhidestmt(bool hide_stmt)
int errdetail(const char *fmt,...) pg_attribute_printf(1
int int errmsg_internal(const char *fmt,...) pg_attribute_printf(1
int errhidecontext(bool hide_ctx)
#define ereport(elevel,...)
#define MCXT_ALLOC_NO_OOM
void * GenerationRealloc(void *pointer, Size size, int flags)
void GenerationReset(MemoryContext context)
void GenerationFree(void *pointer)
MemoryContext GenerationGetChunkContext(void *pointer)
Size GenerationGetChunkSpace(void *pointer)
bool GenerationIsEmpty(MemoryContext context)
void GenerationStats(MemoryContext context, MemoryStatsPrintFunc printfunc, void *passthru, MemoryContextCounters *totals, bool print_to_stderr)
void GenerationDelete(MemoryContext context)
void * GenerationAlloc(MemoryContext context, Size size, int flags)
volatile sig_atomic_t LogMemoryContextPending
volatile sig_atomic_t InterruptPending
volatile uint32 CritSectionCount
int pg_mbcliplen(const char *mbstr, int len, int limit)
static void MemoryContextStatsInternal(MemoryContext context, int level, int max_level, int max_children, MemoryContextCounters *totals, bool print_to_stderr)
void MemoryContextUnregisterResetCallback(MemoryContext context, MemoryContextCallback *cb)
void * repalloc0(void *pointer, Size oldsize, Size size)
static void MemoryContextCallResetCallbacks(MemoryContext context)
char * MemoryContextStrdup(MemoryContext context, const char *string)
void * MemoryContextAlloc(MemoryContext context, Size size)
MemoryContext MessageContext
bool MemoryContextIsEmpty(MemoryContext context)
void MemoryContextMemConsumed(MemoryContext context, MemoryContextCounters *consumed)
void MemoryContextReset(MemoryContext context)
void MemoryContextCreate(MemoryContext node, NodeTag tag, MemoryContextMethodID method_id, MemoryContext parent, const char *name)
void * MemoryContextAllocZero(MemoryContext context, Size size)
MemoryContext TopTransactionContext
char * pstrdup(const char *in)
void HandleLogMemoryContextInterrupt(void)
void MemoryContextRegisterResetCallback(MemoryContext context, MemoryContextCallback *cb)
static MemoryContextMethodID GetMemoryChunkMethodID(const void *pointer)
void MemoryContextSetParent(MemoryContext context, MemoryContext new_parent)
static void * BogusRealloc(void *pointer, Size size, int flags)
void * repalloc(void *pointer, Size size)
void pfree(void *pointer)
Size GetMemoryChunkSpace(void *pointer)
void * palloc0(Size size)
static Size BogusGetChunkSpace(void *pointer)
void * MemoryContextAllocAligned(MemoryContext context, Size size, Size alignto, int flags)
void MemoryContextDeleteChildren(MemoryContext context)
MemoryContext TopMemoryContext
char * pchomp(const char *in)
#define AssertNotInCriticalSection(context)
MemoryContext CurTransactionContext
MemoryContext CurrentMemoryContext
static MemoryContext MemoryContextTraverseNext(MemoryContext curr, MemoryContext top)
static bool LogMemoryContextInProgress
MemoryContext GetMemoryChunkContext(void *pointer)
void * MemoryContextAllocExtended(MemoryContext context, Size size, int flags)
void MemoryContextStatsDetail(MemoryContext context, int max_level, int max_children, bool print_to_stderr)
Size MemoryContextMemAllocated(MemoryContext context, bool recurse)
char * pnstrdup(const char *in, Size len)
void MemoryContextStats(MemoryContext context)
void MemoryContextInit(void)
static void BogusFree(void *pointer)
void * palloc_extended(Size size, int flags)
MemoryContext PostmasterContext
void * MemoryContextAllocationFailure(MemoryContext context, Size size, int flags)
static const MemoryContextMethods mcxt_methods[]
void * repalloc_extended(void *pointer, Size size, int flags)
MemoryContext MemoryContextGetParent(MemoryContext context)
void ProcessLogMemoryContextInterrupt(void)
MemoryContext ErrorContext
static MemoryContext BogusGetChunkContext(void *pointer)
MemoryContext CacheMemoryContext
void MemoryContextSizeFailure(MemoryContext context, Size size, int flags)
void * MemoryContextAllocHuge(MemoryContext context, Size size)
void MemoryContextDelete(MemoryContext context)
void MemoryContextAllowInCriticalSection(MemoryContext context, bool allow)
static void MemoryContextDeleteOnly(MemoryContext context)
void MemoryContextResetChildren(MemoryContext context)
static void MemoryContextStatsPrint(MemoryContext context, void *passthru, const char *stats_string, bool print_to_stderr)
void * repalloc_huge(void *pointer, Size size)
void MemoryContextSetIdentifier(MemoryContext context, const char *id)
void MemoryContextResetOnly(MemoryContext context)
static uint64 GetMemoryChunkHeader(const void *pointer)
MemoryContext PortalContext
void * palloc_aligned(Size size, Size alignto, int flags)
#define MCXT_METHOD(pointer, method)
#define VALGRIND_MAKE_MEM_DEFINED(addr, size)
#define VALGRIND_MEMPOOL_CHANGE(context, optr, nptr, size)
#define VALGRIND_MEMPOOL_ALLOC(context, addr, size)
#define VALGRIND_MEMPOOL_FREE(context, addr)
#define VALGRIND_MAKE_MEM_NOACCESS(addr, size)
#define MemoryContextIsValid(context)
#define AllocSetContextCreate
#define ALLOCSET_DEFAULT_SIZES
#define AllocHugeSizeIsValid(size)
#define AllocSizeIsValid(size)
#define MEMORY_CONTEXT_METHODID_MASK
#define PallocAlignedExtraBytes(alignto)
@ MCTX_15_RESERVED_WIPEDMEM_ID
@ MCTX_1_RESERVED_GLIBC_ID
@ MCTX_0_RESERVED_UNUSEDMEM_ID
@ MCTX_2_RESERVED_GLIBC_ID
@ MCTX_ALIGNED_REDIRECT_ID
#define PointerGetMemoryChunk(p)
static void MemoryChunkSetHdrMask(MemoryChunk *chunk, void *block, Size value, MemoryContextMethodID methodid)
void * SlabAlloc(MemoryContext context, Size size, int flags)
void SlabFree(void *pointer)
void SlabReset(MemoryContext context)
Size SlabGetChunkSpace(void *pointer)
bool SlabIsEmpty(MemoryContext context)
MemoryContext SlabGetChunkContext(void *pointer)
void * SlabRealloc(void *pointer, Size size, int flags)
void SlabStats(MemoryContext context, MemoryStatsPrintFunc printfunc, void *passthru, MemoryContextCounters *totals, bool print_to_stderr)
void SlabDelete(MemoryContext context)
bool stack_is_too_deep(void)
struct MemoryContextCallback * next
MemoryContextCallbackFunction func
MemoryContextCallback * reset_cbs
const MemoryContextMethods * methods
void(* delete_context)(MemoryContext context)
void(* stats)(MemoryContext context, MemoryStatsPrintFunc printfunc, void *passthru, MemoryContextCounters *totals, bool print_to_stderr)
bool(* is_empty)(MemoryContext context)
void *(* alloc)(MemoryContext context, Size size, int flags)
void(* reset)(MemoryContext context)