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Overview
| Comment: | Revise compiler checks for the rand_s() function. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
287f508dd6abc1b9ffdbec6a685ebe79 |
| User & Date: | mistachkin 2016-02-15 22:01:24 |
Context
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2016-02-15
| ||
| 22:28 | Fix comment. No changes to code. check-in: 2e1f2eff user: mistachkin tags: trunk | |
| 22:01 | Revise compiler checks for the rand_s() function. check-in: 287f508d user: mistachkin tags: trunk | |
| 21:31 | On windows systems when rand_s() is available, use it to obtain additional seed material in winRandomness(). check-in: 139081be user: drh tags: trunk | |
Changes
Changes to src/msvc.h.
12 12 ** 13 13 ** This file contains code that is specific to MSVC. 14 14 */ 15 15 #ifndef _MSVC_H_ 16 16 #define _MSVC_H_ 17 17 18 18 #if defined(_MSC_VER) 19 -#define _CRT_RAND_S /* Make rand_s() available on windows systems */ 20 19 #pragma warning(disable : 4054) 21 20 #pragma warning(disable : 4055) 22 21 #pragma warning(disable : 4100) 23 22 #pragma warning(disable : 4127) 24 23 #pragma warning(disable : 4130) 25 24 #pragma warning(disable : 4152) 26 25 #pragma warning(disable : 4189)
Changes to src/os_win.c.
5420 5420 UNUSED_PARAMETER(pVfs); 5421 5421 memset(zBuf, 0, nBuf); 5422 5422 return nBuf; 5423 5423 #else 5424 5424 EntropyGatherer e; 5425 5425 UNUSED_PARAMETER(pVfs); 5426 5426 memset(zBuf, 0, nBuf); 5427 -#ifdef _MSC_VER 5428 - rand_s((int*)zBuf); /* rand_s() is not available with MinGW */ 5427 +#if defined(_MSC_VER) && _MSC_VER>=1400 5428 + rand_s((int*)zBuf); /* rand_s() is not available with MinGW */ 5429 5429 #endif 5430 5430 e.a = (unsigned char*)zBuf; 5431 5431 e.na = nBuf; 5432 5432 e.nXor = 0; 5433 5433 e.i = 0; 5434 5434 { 5435 5435 SYSTEMTIME x;
Changes to src/sqliteInt.h.
11 11 ************************************************************************* 12 12 ** Internal interface definitions for SQLite. 13 13 ** 14 14 */ 15 15 #ifndef _SQLITEINT_H_ 16 16 #define _SQLITEINT_H_ 17 17 18 +/* 19 +** Make sure that rand_s() is available on Windows systems with MSVC 2005 20 +** or higher. 21 +*/ 22 +#if defined(_MSC_VER) && _MSC_VER>=1400 23 +# define _CRT_RAND_S 24 +#endif 25 + 18 26 /* 19 27 ** Include the header file used to customize the compiler options for MSVC. 20 28 ** This should be done first so that it can successfully prevent spurious 21 29 ** compiler warnings due to subsequent content in this file and other files 22 30 ** that are included by this file. 23 31 */ 24 32 #include "msvc.h" ................................................................................ 145 153 146 154 /* 147 155 ** The following macros are used to cast pointers to integers and 148 156 ** integers to pointers. The way you do this varies from one compiler 149 157 ** to the next, so we have developed the following set of #if statements 150 158 ** to generate appropriate macros for a wide range of compilers. 151 159 ** 152 -** The correct "ANSI" way to do this is to use the intptr_t type. 160 +** The correct "ANSI" way to do this is to use the intptr_t type. 153 161 ** Unfortunately, that typedef is not available on all compilers, or 154 162 ** if it is available, it requires an #include of specific headers 155 163 ** that vary from one machine to the next. 156 164 ** 157 165 ** Ticket #3860: The llvm-gcc-4.2 compiler from Apple chokes on 158 166 ** the ((void*)&((char*)0)[X]) construct. But MSVC chokes on ((void*)(X)). 159 167 ** So we have to define the macros in different ways depending on the ................................................................................ 312 320 ** 313 321 ** Setting NDEBUG makes the code smaller and faster by disabling the 314 322 ** assert() statements in the code. So we want the default action 315 323 ** to be for NDEBUG to be set and NDEBUG to be undefined only if SQLITE_DEBUG 316 324 ** is set. Thus NDEBUG becomes an opt-in rather than an opt-out 317 325 ** feature. 318 326 */ 319 -#if !defined(NDEBUG) && !defined(SQLITE_DEBUG) 327 +#if !defined(NDEBUG) && !defined(SQLITE_DEBUG) 320 328 # define NDEBUG 1 321 329 #endif 322 330 #if defined(NDEBUG) && defined(SQLITE_DEBUG) 323 331 # undef NDEBUG 324 332 #endif 325 333 326 334 /* ................................................................................ 327 335 ** Enable SQLITE_ENABLE_EXPLAIN_COMMENTS if SQLITE_DEBUG is turned on. 328 336 */ 329 337 #if !defined(SQLITE_ENABLE_EXPLAIN_COMMENTS) && defined(SQLITE_DEBUG) 330 338 # define SQLITE_ENABLE_EXPLAIN_COMMENTS 1 331 339 #endif 332 340 333 341 /* 334 -** The testcase() macro is used to aid in coverage testing. When 342 +** The testcase() macro is used to aid in coverage testing. When 335 343 ** doing coverage testing, the condition inside the argument to 336 344 ** testcase() must be evaluated both true and false in order to 337 345 ** get full branch coverage. The testcase() macro is inserted 338 346 ** to help ensure adequate test coverage in places where simple 339 347 ** condition/decision coverage is inadequate. For example, testcase() 340 348 ** can be used to make sure boundary values are tested. For 341 349 ** bitmask tests, testcase() can be used to make sure each bit ................................................................................ 373 381 #ifndef NDEBUG 374 382 # define VVA_ONLY(X) X 375 383 #else 376 384 # define VVA_ONLY(X) 377 385 #endif 378 386 379 387 /* 380 -** The ALWAYS and NEVER macros surround boolean expressions which 388 +** The ALWAYS and NEVER macros surround boolean expressions which 381 389 ** are intended to always be true or false, respectively. Such 382 390 ** expressions could be omitted from the code completely. But they 383 391 ** are included in a few cases in order to enhance the resilience 384 392 ** of SQLite to unexpected behavior - to make the code "self-healing" 385 393 ** or "ductile" rather than being "brittle" and crashing at the first 386 394 ** hint of unplanned behavior. 387 395 ** ................................................................................ 486 494 #endif 487 495 #ifndef SQLITE_BIG_DBL 488 496 # define SQLITE_BIG_DBL (1e99) 489 497 #endif 490 498 491 499 /* 492 500 ** OMIT_TEMPDB is set to 1 if SQLITE_OMIT_TEMPDB is defined, or 0 493 -** afterward. Having this macro allows us to cause the C compiler 501 +** afterward. Having this macro allows us to cause the C compiler 494 502 ** to omit code used by TEMP tables without messy #ifndef statements. 495 503 */ 496 504 #ifdef SQLITE_OMIT_TEMPDB 497 505 #define OMIT_TEMPDB 1 498 506 #else 499 507 #define OMIT_TEMPDB 0 500 508 #endif ................................................................................ 525 533 #ifndef SQLITE_TEMP_STORE 526 534 # define SQLITE_TEMP_STORE 1 527 535 # define SQLITE_TEMP_STORE_xc 1 /* Exclude from ctime.c */ 528 536 #endif 529 537 530 538 /* 531 539 ** If no value has been provided for SQLITE_MAX_WORKER_THREADS, or if 532 -** SQLITE_TEMP_STORE is set to 3 (never use temporary files), set it 540 +** SQLITE_TEMP_STORE is set to 3 (never use temporary files), set it 533 541 ** to zero. 534 542 */ 535 543 #if SQLITE_TEMP_STORE==3 || SQLITE_THREADSAFE==0 536 544 # undef SQLITE_MAX_WORKER_THREADS 537 545 # define SQLITE_MAX_WORKER_THREADS 0 538 546 #endif 539 547 #ifndef SQLITE_MAX_WORKER_THREADS ................................................................................ 673 681 ** Examples: 674 682 ** 1 -> 0 20 -> 43 10000 -> 132 675 683 ** 2 -> 10 25 -> 46 25000 -> 146 676 684 ** 3 -> 16 100 -> 66 1000000 -> 199 677 685 ** 4 -> 20 1000 -> 99 1048576 -> 200 678 686 ** 10 -> 33 1024 -> 100 4294967296 -> 320 679 687 ** 680 -** The LogEst can be negative to indicate fractional values. 688 +** The LogEst can be negative to indicate fractional values. 681 689 ** Examples: 682 690 ** 683 691 ** 0.5 -> -10 0.1 -> -33 0.0625 -> -40 684 692 */ 685 693 typedef INT16_TYPE LogEst; 686 694 687 695 /* ................................................................................ 739 747 ** Constants for the largest and smallest possible 64-bit signed integers. 740 748 ** These macros are designed to work correctly on both 32-bit and 64-bit 741 749 ** compilers. 742 750 */ 743 751 #define LARGEST_INT64 (0xffffffff|(((i64)0x7fffffff)<<32)) 744 752 #define SMALLEST_INT64 (((i64)-1) - LARGEST_INT64) 745 753 746 -/* 754 +/* 747 755 ** Round up a number to the next larger multiple of 8. This is used 748 756 ** to force 8-byte alignment on 64-bit architectures. 749 757 */ 750 758 #define ROUND8(x) (((x)+7)&~7) 751 759 752 760 /* 753 761 ** Round down to the nearest multiple of 8 ................................................................................ 833 841 # define SELECTTRACE_ENABLED 1 834 842 #else 835 843 # define SELECTTRACE_ENABLED 0 836 844 #endif 837 845 838 846 /* 839 847 ** An instance of the following structure is used to store the busy-handler 840 -** callback for a given sqlite handle. 848 +** callback for a given sqlite handle. 841 849 ** 842 850 ** The sqlite.busyHandler member of the sqlite struct contains the busy 843 851 ** callback for the database handle. Each pager opened via the sqlite 844 852 ** handle is passed a pointer to sqlite.busyHandler. The busy-handler 845 853 ** callback is currently invoked only from within pager.c. 846 854 */ 847 855 typedef struct BusyHandler BusyHandler; ................................................................................ 878 886 /* 879 887 ** Determine if the argument is a power of two 880 888 */ 881 889 #define IsPowerOfTwo(X) (((X)&((X)-1))==0) 882 890 883 891 /* 884 892 ** The following value as a destructor means to use sqlite3DbFree(). 885 -** The sqlite3DbFree() routine requires two parameters instead of the 886 -** one parameter that destructors normally want. So we have to introduce 887 -** this magic value that the code knows to handle differently. Any 893 +** The sqlite3DbFree() routine requires two parameters instead of the 894 +** one parameter that destructors normally want. So we have to introduce 895 +** this magic value that the code knows to handle differently. Any 888 896 ** pointer will work here as long as it is distinct from SQLITE_STATIC 889 897 ** and SQLITE_TRANSIENT. 890 898 */ 891 899 #define SQLITE_DYNAMIC ((sqlite3_destructor_type)sqlite3MallocSize) 892 900 893 901 /* 894 902 ** When SQLITE_OMIT_WSD is defined, it means that the target platform does ................................................................................ 907 915 #ifdef SQLITE_OMIT_WSD 908 916 #define SQLITE_WSD const 909 917 #define GLOBAL(t,v) (*(t*)sqlite3_wsd_find((void*)&(v), sizeof(v))) 910 918 #define sqlite3GlobalConfig GLOBAL(struct Sqlite3Config, sqlite3Config) 911 919 int sqlite3_wsd_init(int N, int J); 912 920 void *sqlite3_wsd_find(void *K, int L); 913 921 #else 914 - #define SQLITE_WSD 922 + #define SQLITE_WSD 915 923 #define GLOBAL(t,v) v 916 924 #define sqlite3GlobalConfig sqlite3Config 917 925 #endif 918 926 919 927 /* 920 928 ** The following macros are used to suppress compiler warnings and to 921 -** make it clear to human readers when a function parameter is deliberately 929 +** make it clear to human readers when a function parameter is deliberately 922 930 ** left unused within the body of a function. This usually happens when 923 -** a function is called via a function pointer. For example the 931 +** a function is called via a function pointer. For example the 924 932 ** implementation of an SQL aggregate step callback may not use the 925 933 ** parameter indicating the number of arguments passed to the aggregate, 926 934 ** if it knows that this is enforced elsewhere. 927 935 ** 928 936 ** When a function parameter is not used at all within the body of a function, 929 937 ** it is generally named "NotUsed" or "NotUsed2" to make things even clearer. 930 938 ** However, these macros may also be used to suppress warnings related to ................................................................................ 982 990 typedef struct VTable VTable; 983 991 typedef struct VtabCtx VtabCtx; 984 992 typedef struct Walker Walker; 985 993 typedef struct WhereInfo WhereInfo; 986 994 typedef struct With With; 987 995 988 996 /* 989 -** Defer sourcing vdbe.h and btree.h until after the "u8" and 997 +** Defer sourcing vdbe.h and btree.h until after the "u8" and 990 998 ** "BusyHandler" typedefs. vdbe.h also requires a few of the opaque 991 999 ** pointer types (i.e. FuncDef) defined above. 992 1000 */ 993 1001 #include "btree.h" 994 1002 #include "vdbe.h" 995 1003 #include "pager.h" 996 1004 #include "pcache.h" ................................................................................ 1016 1024 /* 1017 1025 ** An instance of the following structure stores a database schema. 1018 1026 ** 1019 1027 ** Most Schema objects are associated with a Btree. The exception is 1020 1028 ** the Schema for the TEMP databaes (sqlite3.aDb[1]) which is free-standing. 1021 1029 ** In shared cache mode, a single Schema object can be shared by multiple 1022 1030 ** Btrees that refer to the same underlying BtShared object. 1023 -** 1031 +** 1024 1032 ** Schema objects are automatically deallocated when the last Btree that 1025 1033 ** references them is destroyed. The TEMP Schema is manually freed by 1026 1034 ** sqlite3_close(). 1027 1035 * 1028 1036 ** A thread must be holding a mutex on the corresponding Btree in order 1029 1037 ** to access Schema content. This implies that the thread must also be 1030 1038 ** holding a mutex on the sqlite3 connection pointer that owns the Btree. ................................................................................ 1041 1049 u8 file_format; /* Schema format version for this file */ 1042 1050 u8 enc; /* Text encoding used by this database */ 1043 1051 u16 schemaFlags; /* Flags associated with this schema */ 1044 1052 int cache_size; /* Number of pages to use in the cache */ 1045 1053 }; 1046 1054 1047 1055 /* 1048 -** These macros can be used to test, set, or clear bits in the 1056 +** These macros can be used to test, set, or clear bits in the 1049 1057 ** Db.pSchema->flags field. 1050 1058 */ 1051 1059 #define DbHasProperty(D,I,P) (((D)->aDb[I].pSchema->schemaFlags&(P))==(P)) 1052 1060 #define DbHasAnyProperty(D,I,P) (((D)->aDb[I].pSchema->schemaFlags&(P))!=0) 1053 1061 #define DbSetProperty(D,I,P) (D)->aDb[I].pSchema->schemaFlags|=(P) 1054 1062 #define DbClearProperty(D,I,P) (D)->aDb[I].pSchema->schemaFlags&=~(P) 1055 1063 ................................................................................ 1206 1214 int nVDestroy; /* Number of active OP_VDestroy operations */ 1207 1215 int nExtension; /* Number of loaded extensions */ 1208 1216 void **aExtension; /* Array of shared library handles */ 1209 1217 void (*xTrace)(void*,const char*); /* Trace function */ 1210 1218 void *pTraceArg; /* Argument to the trace function */ 1211 1219 void (*xProfile)(void*,const char*,u64); /* Profiling function */ 1212 1220 void *pProfileArg; /* Argument to profile function */ 1213 - void *pCommitArg; /* Argument to xCommitCallback() */ 1221 + void *pCommitArg; /* Argument to xCommitCallback() */ 1214 1222 int (*xCommitCallback)(void*); /* Invoked at every commit. */ 1215 - void *pRollbackArg; /* Argument to xRollbackCallback() */ 1223 + void *pRollbackArg; /* Argument to xRollbackCallback() */ 1216 1224 void (*xRollbackCallback)(void*); /* Invoked at every commit. */ 1217 1225 void *pUpdateArg; 1218 1226 void (*xUpdateCallback)(void*,int, const char*,const char*,sqlite_int64); 1219 1227 #ifndef SQLITE_OMIT_WAL 1220 1228 int (*xWalCallback)(void *, sqlite3 *, const char *, int); 1221 1229 void *pWalArg; 1222 1230 #endif ................................................................................ 1253 1261 int busyTimeout; /* Busy handler timeout, in msec */ 1254 1262 int nSavepoint; /* Number of non-transaction savepoints */ 1255 1263 int nStatement; /* Number of nested statement-transactions */ 1256 1264 i64 nDeferredCons; /* Net deferred constraints this transaction. */ 1257 1265 i64 nDeferredImmCons; /* Net deferred immediate constraints */ 1258 1266 int *pnBytesFreed; /* If not NULL, increment this in DbFree() */ 1259 1267 #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY 1260 - /* The following variables are all protected by the STATIC_MASTER 1261 - ** mutex, not by sqlite3.mutex. They are used by code in notify.c. 1268 + /* The following variables are all protected by the STATIC_MASTER 1269 + ** mutex, not by sqlite3.mutex. They are used by code in notify.c. 1262 1270 ** 1263 1271 ** When X.pUnlockConnection==Y, that means that X is waiting for Y to 1264 1272 ** unlock so that it can proceed. 1265 1273 ** 1266 1274 ** When X.pBlockingConnection==Y, that means that something that X tried 1267 1275 ** tried to do recently failed with an SQLITE_LOCKED error due to locks 1268 1276 ** held by Y. ................................................................................ 1394 1402 } u; 1395 1403 }; 1396 1404 1397 1405 /* 1398 1406 ** This structure encapsulates a user-function destructor callback (as 1399 1407 ** configured using create_function_v2()) and a reference counter. When 1400 1408 ** create_function_v2() is called to create a function with a destructor, 1401 -** a single object of this type is allocated. FuncDestructor.nRef is set to 1409 +** a single object of this type is allocated. FuncDestructor.nRef is set to 1402 1410 ** the number of FuncDef objects created (either 1 or 3, depending on whether 1403 1411 ** or not the specified encoding is SQLITE_ANY). The FuncDef.pDestructor 1404 1412 ** member of each of the new FuncDef objects is set to point to the allocated 1405 1413 ** FuncDestructor. 1406 1414 ** 1407 1415 ** Thereafter, when one of the FuncDef objects is deleted, the reference 1408 1416 ** count on this object is decremented. When it reaches 0, the destructor ................................................................................ 1436 1444 ** single query - might change over time */ 1437 1445 1438 1446 /* 1439 1447 ** The following three macros, FUNCTION(), LIKEFUNC() and AGGREGATE() are 1440 1448 ** used to create the initializers for the FuncDef structures. 1441 1449 ** 1442 1450 ** FUNCTION(zName, nArg, iArg, bNC, xFunc) 1443 -** Used to create a scalar function definition of a function zName 1451 +** Used to create a scalar function definition of a function zName 1444 1452 ** implemented by C function xFunc that accepts nArg arguments. The 1445 1453 ** value passed as iArg is cast to a (void*) and made available 1446 -** as the user-data (sqlite3_user_data()) for the function. If 1454 +** as the user-data (sqlite3_user_data()) for the function. If 1447 1455 ** argument bNC is true, then the SQLITE_FUNC_NEEDCOLL flag is set. 1448 1456 ** 1449 1457 ** VFUNCTION(zName, nArg, iArg, bNC, xFunc) 1450 1458 ** Like FUNCTION except it omits the SQLITE_FUNC_CONSTANT flag. 1451 1459 ** 1452 1460 ** DFUNCTION(zName, nArg, iArg, bNC, xFunc) 1453 1461 ** Like FUNCTION except it omits the SQLITE_FUNC_CONSTANT flag and ................................................................................ 1458 1466 ** AGGREGATE(zName, nArg, iArg, bNC, xStep, xFinal) 1459 1467 ** Used to create an aggregate function definition implemented by 1460 1468 ** the C functions xStep and xFinal. The first four parameters 1461 1469 ** are interpreted in the same way as the first 4 parameters to 1462 1470 ** FUNCTION(). 1463 1471 ** 1464 1472 ** LIKEFUNC(zName, nArg, pArg, flags) 1465 -** Used to create a scalar function definition of a function zName 1466 -** that accepts nArg arguments and is implemented by a call to C 1473 +** Used to create a scalar function definition of a function zName 1474 +** that accepts nArg arguments and is implemented by a call to C 1467 1475 ** function likeFunc. Argument pArg is cast to a (void *) and made 1468 1476 ** available as the function user-data (sqlite3_user_data()). The 1469 1477 ** FuncDef.flags variable is set to the value passed as the flags 1470 1478 ** parameter. 1471 1479 */ 1472 1480 #define FUNCTION(zName, nArg, iArg, bNC, xFunc) \ 1473 1481 {nArg, SQLITE_FUNC_CONSTANT|SQLITE_UTF8|(bNC*SQLITE_FUNC_NEEDCOLL), \ ................................................................................ 1575 1583 #define SQLITE_SO_UNDEFINED -1 /* No sort order specified */ 1576 1584 1577 1585 /* 1578 1586 ** Column affinity types. 1579 1587 ** 1580 1588 ** These used to have mnemonic name like 'i' for SQLITE_AFF_INTEGER and 1581 1589 ** 't' for SQLITE_AFF_TEXT. But we can save a little space and improve 1582 -** the speed a little by numbering the values consecutively. 1590 +** the speed a little by numbering the values consecutively. 1583 1591 ** 1584 1592 ** But rather than start with 0 or 1, we begin with 'A'. That way, 1585 1593 ** when multiple affinity types are concatenated into a string and 1586 1594 ** used as the P4 operand, they will be more readable. 1587 1595 ** 1588 1596 ** Note also that the numeric types are grouped together so that testing 1589 1597 ** for a numeric type is a single comparison. And the BLOB type is first. ................................................................................ 1594 1602 #define SQLITE_AFF_INTEGER 'D' 1595 1603 #define SQLITE_AFF_REAL 'E' 1596 1604 1597 1605 #define sqlite3IsNumericAffinity(X) ((X)>=SQLITE_AFF_NUMERIC) 1598 1606 1599 1607 /* 1600 1608 ** The SQLITE_AFF_MASK values masks off the significant bits of an 1601 -** affinity value. 1609 +** affinity value. 1602 1610 */ 1603 1611 #define SQLITE_AFF_MASK 0x47 1604 1612 1605 1613 /* 1606 1614 ** Additional bit values that can be ORed with an affinity without 1607 1615 ** changing the affinity. 1608 1616 ** ................................................................................ 1614 1622 #define SQLITE_JUMPIFNULL 0x10 /* jumps if either operand is NULL */ 1615 1623 #define SQLITE_STOREP2 0x20 /* Store result in reg[P2] rather than jump */ 1616 1624 #define SQLITE_NULLEQ 0x80 /* NULL=NULL */ 1617 1625 #define SQLITE_NOTNULL 0x90 /* Assert that operands are never NULL */ 1618 1626 1619 1627 /* 1620 1628 ** An object of this type is created for each virtual table present in 1621 -** the database schema. 1629 +** the database schema. 1622 1630 ** 1623 1631 ** If the database schema is shared, then there is one instance of this 1624 1632 ** structure for each database connection (sqlite3*) that uses the shared 1625 1633 ** schema. This is because each database connection requires its own unique 1626 -** instance of the sqlite3_vtab* handle used to access the virtual table 1627 -** implementation. sqlite3_vtab* handles can not be shared between 1628 -** database connections, even when the rest of the in-memory database 1634 +** instance of the sqlite3_vtab* handle used to access the virtual table 1635 +** implementation. sqlite3_vtab* handles can not be shared between 1636 +** database connections, even when the rest of the in-memory database 1629 1637 ** schema is shared, as the implementation often stores the database 1630 1638 ** connection handle passed to it via the xConnect() or xCreate() method 1631 1639 ** during initialization internally. This database connection handle may 1632 -** then be used by the virtual table implementation to access real tables 1633 -** within the database. So that they appear as part of the callers 1634 -** transaction, these accesses need to be made via the same database 1640 +** then be used by the virtual table implementation to access real tables 1641 +** within the database. So that they appear as part of the callers 1642 +** transaction, these accesses need to be made via the same database 1635 1643 ** connection as that used to execute SQL operations on the virtual table. 1636 1644 ** 1637 1645 ** All VTable objects that correspond to a single table in a shared 1638 1646 ** database schema are initially stored in a linked-list pointed to by 1639 1647 ** the Table.pVTable member variable of the corresponding Table object. 1640 1648 ** When an sqlite3_prepare() operation is required to access the virtual 1641 1649 ** table, it searches the list for the VTable that corresponds to the 1642 1650 ** database connection doing the preparing so as to use the correct 1643 1651 ** sqlite3_vtab* handle in the compiled query. 1644 1652 ** 1645 1653 ** When an in-memory Table object is deleted (for example when the 1646 -** schema is being reloaded for some reason), the VTable objects are not 1647 -** deleted and the sqlite3_vtab* handles are not xDisconnect()ed 1654 +** schema is being reloaded for some reason), the VTable objects are not 1655 +** deleted and the sqlite3_vtab* handles are not xDisconnect()ed 1648 1656 ** immediately. Instead, they are moved from the Table.pVTable list to 1649 1657 ** another linked list headed by the sqlite3.pDisconnect member of the 1650 -** corresponding sqlite3 structure. They are then deleted/xDisconnected 1658 +** corresponding sqlite3 structure. They are then deleted/xDisconnected 1651 1659 ** next time a statement is prepared using said sqlite3*. This is done 1652 1660 ** to avoid deadlock issues involving multiple sqlite3.mutex mutexes. 1653 1661 ** Refer to comments above function sqlite3VtabUnlockList() for an 1654 1662 ** explanation as to why it is safe to add an entry to an sqlite3.pDisconnect 1655 1663 ** list without holding the corresponding sqlite3.mutex mutex. 1656 1664 ** 1657 -** The memory for objects of this type is always allocated by 1658 -** sqlite3DbMalloc(), using the connection handle stored in VTable.db as 1665 +** The memory for objects of this type is always allocated by 1666 +** sqlite3DbMalloc(), using the connection handle stored in VTable.db as 1659 1667 ** the first argument. 1660 1668 */ 1661 1669 struct VTable { 1662 1670 sqlite3 *db; /* Database connection associated with this table */ 1663 1671 Module *pMod; /* Pointer to module implementation */ 1664 1672 sqlite3_vtab *pVtab; /* Pointer to vtab instance */ 1665 1673 int nRef; /* Number of pointers to this structure */ ................................................................................ 1819 1827 ** 1820 1828 ** RESTRICT, SETNULL, and CASCADE actions apply only to foreign keys. 1821 1829 ** RESTRICT is the same as ABORT for IMMEDIATE foreign keys and the 1822 1830 ** same as ROLLBACK for DEFERRED keys. SETNULL means that the foreign 1823 1831 ** key is set to NULL. CASCADE means that a DELETE or UPDATE of the 1824 1832 ** referenced table row is propagated into the row that holds the 1825 1833 ** foreign key. 1826 -** 1834 +** 1827 1835 ** The following symbolic values are used to record which type 1828 1836 ** of action to take. 1829 1837 */ 1830 1838 #define OE_None 0 /* There is no constraint to check */ 1831 1839 #define OE_Rollback 1 /* Fail the operation and rollback the transaction */ 1832 1840 #define OE_Abort 2 /* Back out changes but do no rollback transaction */ 1833 1841 #define OE_Fail 3 /* Stop the operation but leave all prior changes */ ................................................................................ 1840 1848 #define OE_Cascade 9 /* Cascade the changes */ 1841 1849 1842 1850 #define OE_Default 10 /* Do whatever the default action is */ 1843 1851 1844 1852 1845 1853 /* 1846 1854 ** An instance of the following structure is passed as the first 1847 -** argument to sqlite3VdbeKeyCompare and is used to control the 1855 +** argument to sqlite3VdbeKeyCompare and is used to control the 1848 1856 ** comparison of the two index keys. 1849 1857 ** 1850 1858 ** Note that aSortOrder[] and aColl[] have nField+1 slots. There 1851 1859 ** are nField slots for the columns of an index then one extra slot 1852 1860 ** for the rowid at the end. 1853 1861 */ 1854 1862 struct KeyInfo { ................................................................................ 1881 1889 ** or greater than a key in the btree, respectively. These are normally 1882 1890 ** -1 and +1 respectively, but might be inverted to +1 and -1 if the b-tree 1883 1891 ** is in DESC order. 1884 1892 ** 1885 1893 ** The key comparison functions actually return default_rc when they find 1886 1894 ** an equals comparison. default_rc can be -1, 0, or +1. If there are 1887 1895 ** multiple entries in the b-tree with the same key (when only looking 1888 -** at the first pKeyInfo->nFields,) then default_rc can be set to -1 to 1896 +** at the first pKeyInfo->nFields,) then default_rc can be set to -1 to 1889 1897 ** cause the search to find the last match, or +1 to cause the search to 1890 1898 ** find the first match. 1891 1899 ** 1892 1900 ** The key comparison functions will set eqSeen to true if they ever 1893 1901 ** get and equal results when comparing this structure to a b-tree record. 1894 1902 ** When default_rc!=0, the search might end up on the record immediately 1895 1903 ** before the first match or immediately after the last match. The ................................................................................ 1918 1926 ** 1919 1927 ** CREATE TABLE Ex1(c1 int, c2 int, c3 text); 1920 1928 ** CREATE INDEX Ex2 ON Ex1(c3,c1); 1921 1929 ** 1922 1930 ** In the Table structure describing Ex1, nCol==3 because there are 1923 1931 ** three columns in the table. In the Index structure describing 1924 1932 ** Ex2, nColumn==2 since 2 of the 3 columns of Ex1 are indexed. 1925 -** The value of aiColumn is {2, 0}. aiColumn[0]==2 because the 1933 +** The value of aiColumn is {2, 0}. aiColumn[0]==2 because the 1926 1934 ** first column to be indexed (c3) has an index of 2 in Ex1.aCol[]. 1927 1935 ** The second column to be indexed (c1) has an index of 0 in 1928 1936 ** Ex1.aCol[], hence Ex2.aiColumn[1]==0. 1929 1937 ** 1930 1938 ** The Index.onError field determines whether or not the indexed columns 1931 1939 ** must be unique and what to do if they are not. When Index.onError=OE_None, 1932 1940 ** it means this is not a unique index. Otherwise it is a unique index 1933 -** and the value of Index.onError indicate the which conflict resolution 1941 +** and the value of Index.onError indicate the which conflict resolution 1934 1942 ** algorithm to employ whenever an attempt is made to insert a non-unique 1935 1943 ** element. 1936 1944 ** 1937 1945 ** While parsing a CREATE TABLE or CREATE INDEX statement in order to 1938 1946 ** generate VDBE code (as opposed to parsing one read from an sqlite_master 1939 1947 ** table as part of parsing an existing database schema), transient instances 1940 1948 ** of this structure may be created. In this case the Index.tnum variable is ................................................................................ 1991 1999 /* The Index.aiColumn[] values are normally positive integer. But 1992 2000 ** there are some negative values that have special meaning: 1993 2001 */ 1994 2002 #define XN_ROWID (-1) /* Indexed column is the rowid */ 1995 2003 #define XN_EXPR (-2) /* Indexed column is an expression */ 1996 2004 1997 2005 /* 1998 -** Each sample stored in the sqlite_stat3 table is represented in memory 2006 +** Each sample stored in the sqlite_stat3 table is represented in memory 1999 2007 ** using a structure of this type. See documentation at the top of the 2000 2008 ** analyze.c source file for additional information. 2001 2009 */ 2002 2010 struct IndexSample { 2003 2011 void *p; /* Pointer to sampled record */ 2004 2012 int n; /* Size of record in bytes */ 2005 2013 tRowcnt *anEq; /* Est. number of rows where the key equals this sample */ ................................................................................ 2086 2094 ** 2087 2095 ** Expr.op is the opcode. The integer parser token codes are reused 2088 2096 ** as opcodes here. For example, the parser defines TK_GE to be an integer 2089 2097 ** code representing the ">=" operator. This same integer code is reused 2090 2098 ** to represent the greater-than-or-equal-to operator in the expression 2091 2099 ** tree. 2092 2100 ** 2093 -** If the expression is an SQL literal (TK_INTEGER, TK_FLOAT, TK_BLOB, 2101 +** If the expression is an SQL literal (TK_INTEGER, TK_FLOAT, TK_BLOB, 2094 2102 ** or TK_STRING), then Expr.token contains the text of the SQL literal. If 2095 -** the expression is a variable (TK_VARIABLE), then Expr.token contains the 2103 +** the expression is a variable (TK_VARIABLE), then Expr.token contains the 2096 2104 ** variable name. Finally, if the expression is an SQL function (TK_FUNCTION), 2097 2105 ** then Expr.token contains the name of the function. 2098 2106 ** 2099 2107 ** Expr.pRight and Expr.pLeft are the left and right subexpressions of a 2100 2108 ** binary operator. Either or both may be NULL. 2101 2109 ** 2102 2110 ** Expr.x.pList is a list of arguments if the expression is an SQL function, 2103 2111 ** a CASE expression or an IN expression of the form "<lhs> IN (<y>, <z>...)". 2104 2112 ** Expr.x.pSelect is used if the expression is a sub-select or an expression of 2105 2113 ** the form "<lhs> IN (SELECT ...)". If the EP_xIsSelect bit is set in the 2106 -** Expr.flags mask, then Expr.x.pSelect is valid. Otherwise, Expr.x.pList is 2114 +** Expr.flags mask, then Expr.x.pSelect is valid. Otherwise, Expr.x.pList is 2107 2115 ** valid. 2108 2116 ** 2109 2117 ** An expression of the form ID or ID.ID refers to a column in a table. 2110 2118 ** For such expressions, Expr.op is set to TK_COLUMN and Expr.iTable is 2111 2119 ** the integer cursor number of a VDBE cursor pointing to that table and 2112 2120 ** Expr.iColumn is the column number for the specific column. If the 2113 2121 ** expression is used as a result in an aggregate SELECT, then the 2114 2122 ** value is also stored in the Expr.iAgg column in the aggregate so that 2115 2123 ** it can be accessed after all aggregates are computed. 2116 2124 ** 2117 -** If the expression is an unbound variable marker (a question mark 2118 -** character '?' in the original SQL) then the Expr.iTable holds the index 2125 +** If the expression is an unbound variable marker (a question mark 2126 +** character '?' in the original SQL) then the Expr.iTable holds the index 2119 2127 ** number for that variable. 2120 2128 ** 2121 2129 ** If the expression is a subquery then Expr.iColumn holds an integer 2122 2130 ** register number containing the result of the subquery. If the 2123 2131 ** subquery gives a constant result, then iTable is -1. If the subquery 2124 2132 ** gives a different answer at different times during statement processing 2125 2133 ** then iTable is the address of a subroutine that computes the subquery. ................................................................................ 2150 2158 union { 2151 2159 char *zToken; /* Token value. Zero terminated and dequoted */ 2152 2160 int iValue; /* Non-negative integer value if EP_IntValue */ 2153 2161 } u; 2154 2162 2155 2163 /* If the EP_TokenOnly flag is set in the Expr.flags mask, then no 2156 2164 ** space is allocated for the fields below this point. An attempt to 2157 - ** access them will result in a segfault or malfunction. 2165 + ** access them will result in a segfault or malfunction. 2158 2166 *********************************************************************/ 2159 2167 2160 2168 Expr *pLeft; /* Left subnode */ 2161 2169 Expr *pRight; /* Right subnode */ 2162 2170 union { 2163 2171 ExprList *pList; /* op = IN, EXISTS, SELECT, CASE, FUNCTION, BETWEEN */ 2164 2172 Select *pSelect; /* EP_xIsSelect and op = IN, EXISTS, SELECT */ ................................................................................ 2216 2224 2217 2225 /* 2218 2226 ** Combinations of two or more EP_* flags 2219 2227 */ 2220 2228 #define EP_Propagate (EP_Collate|EP_Subquery) /* Propagate these bits up tree */ 2221 2229 2222 2230 /* 2223 -** These macros can be used to test, set, or clear bits in the 2231 +** These macros can be used to test, set, or clear bits in the 2224 2232 ** Expr.flags field. 2225 2233 */ 2226 2234 #define ExprHasProperty(E,P) (((E)->flags&(P))!=0) 2227 2235 #define ExprHasAllProperty(E,P) (((E)->flags&(P))==(P)) 2228 2236 #define ExprSetProperty(E,P) (E)->flags|=(P) 2229 2237 #define ExprClearProperty(E,P) (E)->flags&=~(P) 2230 2238 ................................................................................ 2235 2243 #ifdef SQLITE_DEBUG 2236 2244 # define ExprSetVVAProperty(E,P) (E)->flags|=(P) 2237 2245 #else 2238 2246 # define ExprSetVVAProperty(E,P) 2239 2247 #endif 2240 2248 2241 2249 /* 2242 -** Macros to determine the number of bytes required by a normal Expr 2243 -** struct, an Expr struct with the EP_Reduced flag set in Expr.flags 2250 +** Macros to determine the number of bytes required by a normal Expr 2251 +** struct, an Expr struct with the EP_Reduced flag set in Expr.flags 2244 2252 ** and an Expr struct with the EP_TokenOnly flag set. 2245 2253 */ 2246 2254 #define EXPR_FULLSIZE sizeof(Expr) /* Full size */ 2247 2255 #define EXPR_REDUCEDSIZE offsetof(Expr,iTable) /* Common features */ 2248 2256 #define EXPR_TOKENONLYSIZE offsetof(Expr,pLeft) /* Fewer features */ 2249 2257 2250 2258 /* 2251 -** Flags passed to the sqlite3ExprDup() function. See the header comment 2259 +** Flags passed to the sqlite3ExprDup() function. See the header comment 2252 2260 ** above sqlite3ExprDup() for details. 2253 2261 */ 2254 2262 #define EXPRDUP_REDUCE 0x0001 /* Used reduced-size Expr nodes */ 2255 2263 2256 2264 /* 2257 2265 ** A list of expressions. Each expression may optionally have a 2258 2266 ** name. An expr/name combination can be used in several ways, such ................................................................................ 2443 2451 ** names. The context consists of a list of tables (the pSrcList) field and 2444 2452 ** a list of named expression (pEList). The named expression list may 2445 2453 ** be NULL. The pSrc corresponds to the FROM clause of a SELECT or 2446 2454 ** to the table being operated on by INSERT, UPDATE, or DELETE. The 2447 2455 ** pEList corresponds to the result set of a SELECT and is NULL for 2448 2456 ** other statements. 2449 2457 ** 2450 -** NameContexts can be nested. When resolving names, the inner-most 2458 +** NameContexts can be nested. When resolving names, the inner-most 2451 2459 ** context is searched first. If no match is found, the next outer 2452 2460 ** context is checked. If there is still no match, the next context 2453 2461 ** is checked. This process continues until either a match is found 2454 2462 ** or all contexts are check. When a match is found, the nRef member of 2455 -** the context containing the match is incremented. 2463 +** the context containing the match is incremented. 2456 2464 ** 2457 2465 ** Each subquery gets a new NameContext. The pNext field points to the 2458 2466 ** NameContext in the parent query. Thus the process of scanning the 2459 2467 ** NameContext list corresponds to searching through successively outer 2460 2468 ** subqueries looking for a match. 2461 2469 */ 2462 2470 struct NameContext { ................................................................................ 2471 2479 }; 2472 2480 2473 2481 /* 2474 2482 ** Allowed values for the NameContext, ncFlags field. 2475 2483 ** 2476 2484 ** Note: NC_MinMaxAgg must have the same value as SF_MinMaxAgg and 2477 2485 ** SQLITE_FUNC_MINMAX. 2478 -** 2486 +** 2479 2487 */ 2480 2488 #define NC_AllowAgg 0x0001 /* Aggregate functions are allowed here */ 2481 2489 #define NC_HasAgg 0x0002 /* One or more aggregate functions seen */ 2482 2490 #define NC_IsCheck 0x0004 /* True if resolving names in a CHECK constraint */ 2483 2491 #define NC_InAggFunc 0x0008 /* True if analyzing arguments to an agg func */ 2484 2492 #define NC_PartIdx 0x0010 /* True if resolving a partial index WHERE */ 2485 2493 #define NC_IdxExpr 0x0020 /* True if resolving columns of CREATE INDEX */ ................................................................................ 2550 2558 2551 2559 2552 2560 /* 2553 2561 ** The results of a SELECT can be distributed in several ways, as defined 2554 2562 ** by one of the following macros. The "SRT" prefix means "SELECT Result 2555 2563 ** Type". 2556 2564 ** 2557 -** SRT_Union Store results as a key in a temporary index 2565 +** SRT_Union Store results as a key in a temporary index 2558 2566 ** identified by pDest->iSDParm. 2559 2567 ** 2560 2568 ** SRT_Except Remove results from the temporary index pDest->iSDParm. 2561 2569 ** 2562 2570 ** SRT_Exists Store a 1 in memory cell pDest->iSDParm if the result 2563 2571 ** set is not empty. 2564 2572 ** ................................................................................ 2574 2582 ** 2575 2583 ** SRT_Mem Only valid if the result is a single column. 2576 2584 ** Store the first column of the first result row 2577 2585 ** in register pDest->iSDParm then abandon the rest 2578 2586 ** of the query. This destination implies "LIMIT 1". 2579 2587 ** 2580 2588 ** SRT_Set The result must be a single column. Store each 2581 -** row of result as the key in table pDest->iSDParm. 2589 +** row of result as the key in table pDest->iSDParm. 2582 2590 ** Apply the affinity pDest->affSdst before storing 2583 2591 ** results. Used to implement "IN (SELECT ...)". 2584 2592 ** 2585 2593 ** SRT_EphemTab Create an temporary table pDest->iSDParm and store 2586 2594 ** the result there. The cursor is left open after 2587 2595 ** returning. This is like SRT_Table except that 2588 2596 ** this destination uses OP_OpenEphemeral to create ................................................................................ 2642 2650 int iSDParm; /* A parameter used by the eDest disposal method */ 2643 2651 int iSdst; /* Base register where results are written */ 2644 2652 int nSdst; /* Number of registers allocated */ 2645 2653 ExprList *pOrderBy; /* Key columns for SRT_Queue and SRT_DistQueue */ 2646 2654 }; 2647 2655 2648 2656 /* 2649 -** During code generation of statements that do inserts into AUTOINCREMENT 2657 +** During code generation of statements that do inserts into AUTOINCREMENT 2650 2658 ** tables, the following information is attached to the Table.u.autoInc.p 2651 2659 ** pointer of each autoincrement table to record some side information that 2652 2660 ** the code generator needs. We have to keep per-table autoincrement 2653 2661 ** information in case inserts are done within triggers. Triggers do not 2654 2662 ** normally coordinate their activities, but we do need to coordinate the 2655 2663 ** loading and saving of autoincrement information. 2656 2664 */ ................................................................................ 2665 2673 ** Size of the column cache 2666 2674 */ 2667 2675 #ifndef SQLITE_N_COLCACHE 2668 2676 # define SQLITE_N_COLCACHE 10 2669 2677 #endif 2670 2678 2671 2679 /* 2672 -** At least one instance of the following structure is created for each 2680 +** At least one instance of the following structure is created for each 2673 2681 ** trigger that may be fired while parsing an INSERT, UPDATE or DELETE 2674 2682 ** statement. All such objects are stored in the linked list headed at 2675 2683 ** Parse.pTriggerPrg and deleted once statement compilation has been 2676 2684 ** completed. 2677 2685 ** 2678 2686 ** A Vdbe sub-program that implements the body and WHEN clause of trigger 2679 2687 ** TriggerPrg.pTrigger, assuming a default ON CONFLICT clause of 2680 2688 ** TriggerPrg.orconf, is stored in the TriggerPrg.pProgram variable. 2681 2689 ** The Parse.pTriggerPrg list never contains two entries with the same 2682 2690 ** values for both pTrigger and orconf. 2683 2691 ** 2684 2692 ** The TriggerPrg.aColmask[0] variable is set to a mask of old.* columns 2685 -** accessed (or set to 0 for triggers fired as a result of INSERT 2693 +** accessed (or set to 0 for triggers fired as a result of INSERT 2686 2694 ** statements). Similarly, the TriggerPrg.aColmask[1] variable is set to 2687 2695 ** a mask of new.* columns used by the program. 2688 2696 */ 2689 2697 struct TriggerPrg { 2690 2698 Trigger *pTrigger; /* Trigger this program was coded from */ 2691 2699 TriggerPrg *pNext; /* Next entry in Parse.pTriggerPrg list */ 2692 2700 SubProgram *pProgram; /* Program implementing pTrigger/orconf */ ................................................................................ 2719 2727 ** carry around information that is global to the entire parse. 2720 2728 ** 2721 2729 ** The structure is divided into two parts. When the parser and code 2722 2730 ** generate call themselves recursively, the first part of the structure 2723 2731 ** is constant but the second part is reset at the beginning and end of 2724 2732 ** each recursion. 2725 2733 ** 2726 -** The nTableLock and aTableLock variables are only used if the shared-cache 2734 +** The nTableLock and aTableLock variables are only used if the shared-cache 2727 2735 ** feature is enabled (if sqlite3Tsd()->useSharedData is true). They are 2728 2736 ** used to store the set of table-locks required by the statement being 2729 2737 ** compiled. Function sqlite3TableLock() is used to add entries to the 2730 2738 ** list. 2731 2739 */ 2732 2740 struct Parse { 2733 2741 sqlite3 *db; /* The main database structure */ ................................................................................ 2872 2880 #define OPFLAG_P2ISREG 0x10 /* P2 to OP_Open** is a register number */ 2873 2881 #define OPFLAG_PERMUTE 0x01 /* OP_Compare: use the permutation */ 2874 2882 #define OPFLAG_SAVEPOSITION 0x02 /* OP_Delete: keep cursor position */ 2875 2883 #define OPFLAG_AUXDELETE 0x04 /* OP_Delete: index in a DELETE op */ 2876 2884 2877 2885 /* 2878 2886 * Each trigger present in the database schema is stored as an instance of 2879 - * struct Trigger. 2887 + * struct Trigger. 2880 2888 * 2881 2889 * Pointers to instances of struct Trigger are stored in two ways. 2882 - * 1. In the "trigHash" hash table (part of the sqlite3* that represents the 2890 + * 1. In the "trigHash" hash table (part of the sqlite3* that represents the 2883 2891 * database). This allows Trigger structures to be retrieved by name. 2884 2892 * 2. All triggers associated with a single table form a linked list, using the 2885 2893 * pNext member of struct Trigger. A pointer to the first element of the 2886 2894 * linked list is stored as the "pTrigger" member of the associated 2887 2895 * struct Table. 2888 2896 * 2889 2897 * The "step_list" member points to the first element of a linked list ................................................................................ 2901 2909 Schema *pTabSchema; /* Schema containing the table */ 2902 2910 TriggerStep *step_list; /* Link list of trigger program steps */ 2903 2911 Trigger *pNext; /* Next trigger associated with the table */ 2904 2912 }; 2905 2913 2906 2914 /* 2907 2915 ** A trigger is either a BEFORE or an AFTER trigger. The following constants 2908 -** determine which. 2916 +** determine which. 2909 2917 ** 2910 2918 ** If there are multiple triggers, you might of some BEFORE and some AFTER. 2911 2919 ** In that cases, the constants below can be ORed together. 2912 2920 */ 2913 2921 #define TRIGGER_BEFORE 1 2914 2922 #define TRIGGER_AFTER 2 2915 2923 2916 2924 /* 2917 2925 * An instance of struct TriggerStep is used to store a single SQL statement 2918 - * that is a part of a trigger-program. 2926 + * that is a part of a trigger-program. 2919 2927 * 2920 2928 * Instances of struct TriggerStep are stored in a singly linked list (linked 2921 - * using the "pNext" member) referenced by the "step_list" member of the 2929 + * using the "pNext" member) referenced by the "step_list" member of the 2922 2930 * associated struct Trigger instance. The first element of the linked list is 2923 2931 * the first step of the trigger-program. 2924 - * 2932 + * 2925 2933 * The "op" member indicates whether this is a "DELETE", "INSERT", "UPDATE" or 2926 - * "SELECT" statement. The meanings of the other members is determined by the 2934 + * "SELECT" statement. The meanings of the other members is determined by the 2927 2935 * value of "op" as follows: 2928 2936 * 2929 2937 * (op == TK_INSERT) 2930 2938 * orconf -> stores the ON CONFLICT algorithm 2931 2939 * pSelect -> If this is an INSERT INTO ... SELECT ... statement, then 2932 2940 * this stores a pointer to the SELECT statement. Otherwise NULL. 2933 2941 * zTarget -> Dequoted name of the table to insert into. 2934 2942 * pExprList -> If this is an INSERT INTO ... VALUES ... statement, then 2935 2943 * this stores values to be inserted. Otherwise NULL. 2936 - * pIdList -> If this is an INSERT INTO ... (<column-names>) VALUES ... 2944 + * pIdList -> If this is an INSERT INTO ... (<column-names>) VALUES ... 2937 2945 * statement, then this stores the column-names to be 2938 2946 * inserted into. 2939 2947 * 2940 2948 * (op == TK_DELETE) 2941 2949 * zTarget -> Dequoted name of the table to delete from. 2942 2950 * pWhere -> The WHERE clause of the DELETE statement if one is specified. 2943 2951 * Otherwise NULL. 2944 - * 2952 + * 2945 2953 * (op == TK_UPDATE) 2946 2954 * zTarget -> Dequoted name of the table to update. 2947 2955 * pWhere -> The WHERE clause of the UPDATE statement if one is specified. 2948 2956 * Otherwise NULL. 2949 2957 * pExprList -> A list of the columns to update and the expressions to update 2950 2958 * them to. See sqlite3Update() documentation of "pChanges" 2951 2959 * argument. 2952 - * 2960 + * 2953 2961 */ 2954 2962 struct TriggerStep { 2955 2963 u8 op; /* One of TK_DELETE, TK_UPDATE, TK_INSERT, TK_SELECT */ 2956 2964 u8 orconf; /* OE_Rollback etc. */ 2957 2965 Trigger *pTrig; /* The trigger that this step is a part of */ 2958 2966 Select *pSelect; /* SELECT statement or RHS of INSERT INTO SELECT ... */ 2959 2967 char *zTarget; /* Target table for DELETE, UPDATE, INSERT */ ................................................................................ 2963 2971 TriggerStep *pNext; /* Next in the link-list */ 2964 2972 TriggerStep *pLast; /* Last element in link-list. Valid for 1st elem only */ 2965 2973 }; 2966 2974 2967 2975 /* 2968 2976 ** The following structure contains information used by the sqliteFix... 2969 2977 ** routines as they walk the parse tree to make database references 2970 -** explicit. 2978 +** explicit. 2971 2979 */ 2972 2980 typedef struct DbFixer DbFixer; 2973 2981 struct DbFixer { 2974 2982 Parse *pParse; /* The parsing context. Error messages written here */ 2975 2983 Schema *pSchema; /* Fix items to this schema */ 2976 2984 int bVarOnly; /* Check for variable references only */ 2977 2985 const char *zDb; /* Make sure all objects are contained in this database */ ................................................................................ 3278 3286 ** 3279 3287 ** The alloca() routine never returns NULL. This will cause code paths 3280 3288 ** that deal with sqlite3StackAlloc() failures to be unreachable. 3281 3289 */ 3282 3290 #ifdef SQLITE_USE_ALLOCA 3283 3291 # define sqlite3StackAllocRaw(D,N) alloca(N) 3284 3292 # define sqlite3StackAllocZero(D,N) memset(alloca(N), 0, N) 3285 -# define sqlite3StackFree(D,P) 3293 +# define sqlite3StackFree(D,P) 3286 3294 #else 3287 3295 # define sqlite3StackAllocRaw(D,N) sqlite3DbMallocRaw(D,N) 3288 3296 # define sqlite3StackAllocZero(D,N) sqlite3DbMallocZero(D,N) 3289 3297 # define sqlite3StackFree(D,P) sqlite3DbFree(D,P) 3290 3298 #endif 3291 3299 3292 3300 #ifdef SQLITE_ENABLE_MEMSYS3 ................................................................................ 3735 3743 #else 3736 3744 # define sqlite3FileSuffix3(X,Y) 3737 3745 #endif 3738 3746 u8 sqlite3GetBoolean(const char *z,u8); 3739 3747 3740 3748 const void *sqlite3ValueText(sqlite3_value*, u8); 3741 3749 int sqlite3ValueBytes(sqlite3_value*, u8); 3742 -void sqlite3ValueSetStr(sqlite3_value*, int, const void *,u8, 3750 +void sqlite3ValueSetStr(sqlite3_value*, int, const void *,u8, 3743 3751 void(*)(void*)); 3744 3752 void sqlite3ValueSetNull(sqlite3_value*); 3745 3753 void sqlite3ValueFree(sqlite3_value*); 3746 3754 sqlite3_value *sqlite3ValueNew(sqlite3 *); 3747 3755 char *sqlite3Utf16to8(sqlite3 *, const void*, int, u8); 3748 3756 int sqlite3ValueFromExpr(sqlite3 *, Expr *, u8, u8, sqlite3_value **); 3749 3757 void sqlite3ValueApplyAffinity(sqlite3_value *, u8, u8); ................................................................................ 3795 3803 KeyInfo *sqlite3KeyInfoAlloc(sqlite3*,int,int); 3796 3804 void sqlite3KeyInfoUnref(KeyInfo*); 3797 3805 KeyInfo *sqlite3KeyInfoRef(KeyInfo*); 3798 3806 KeyInfo *sqlite3KeyInfoOfIndex(Parse*, Index*); 3799 3807 #ifdef SQLITE_DEBUG 3800 3808 int sqlite3KeyInfoIsWriteable(KeyInfo*); 3801 3809 #endif 3802 -int sqlite3CreateFunc(sqlite3 *, const char *, int, int, void *, 3810 +int sqlite3CreateFunc(sqlite3 *, const char *, int, int, void *, 3803 3811 void (*)(sqlite3_context*,int,sqlite3_value **), 3804 3812 void (*)(sqlite3_context*,int,sqlite3_value **), void (*)(sqlite3_context*), 3805 3813 FuncDestructor *pDestructor 3806 3814 ); 3807 3815 void sqlite3OomFault(sqlite3*); 3808 3816 void sqlite3OomClear(sqlite3*); 3809 3817 int sqlite3ApiExit(sqlite3 *db, int); ................................................................................ 3858 3866 3859 3867 #ifdef SQLITE_OMIT_VIRTUALTABLE 3860 3868 # define sqlite3VtabClear(Y) 3861 3869 # define sqlite3VtabSync(X,Y) SQLITE_OK 3862 3870 # define sqlite3VtabRollback(X) 3863 3871 # define sqlite3VtabCommit(X) 3864 3872 # define sqlite3VtabInSync(db) 0 3865 -# define sqlite3VtabLock(X) 3873 +# define sqlite3VtabLock(X) 3866 3874 # define sqlite3VtabUnlock(X) 3867 3875 # define sqlite3VtabUnlockList(X) 3868 3876 # define sqlite3VtabSavepoint(X, Y, Z) SQLITE_OK 3869 3877 # define sqlite3GetVTable(X,Y) ((VTable*)0) 3870 3878 #else 3871 3879 void sqlite3VtabClear(sqlite3 *db, Table*); 3872 3880 void sqlite3VtabDisconnect(sqlite3 *db, Table *p); ................................................................................ 3916 3924 #define sqlite3WithDelete(x,y) 3917 3925 #endif 3918 3926 3919 3927 /* Declarations for functions in fkey.c. All of these are replaced by 3920 3928 ** no-op macros if OMIT_FOREIGN_KEY is defined. In this case no foreign 3921 3929 ** key functionality is available. If OMIT_TRIGGER is defined but 3922 3930 ** OMIT_FOREIGN_KEY is not, only some of the functions are no-oped. In 3923 -** this case foreign keys are parsed, but no other functionality is 3931 +** this case foreign keys are parsed, but no other functionality is 3924 3932 ** provided (enforcement of FK constraints requires the triggers sub-system). 3925 3933 */ 3926 3934 #if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER) 3927 3935 void sqlite3FkCheck(Parse*, Table*, int, int, int*, int); 3928 3936 void sqlite3FkDropTable(Parse*, SrcList *, Table*); 3929 3937 void sqlite3FkActions(Parse*, Table*, ExprList*, int, int*, int); 3930 3938 int sqlite3FkRequired(Parse*, Table*, int*, int); ................................................................................ 4020 4028 #ifdef SQLITE_DEBUG 4021 4029 void sqlite3ParserTrace(FILE*, char *); 4022 4030 #endif 4023 4031 4024 4032 /* 4025 4033 ** If the SQLITE_ENABLE IOTRACE exists then the global variable 4026 4034 ** sqlite3IoTrace is a pointer to a printf-like routine used to 4027 -** print I/O tracing messages. 4035 +** print I/O tracing messages. 4028 4036 */ 4029 4037 #ifdef SQLITE_ENABLE_IOTRACE 4030 4038 # define IOTRACE(A) if( sqlite3IoTrace ){ sqlite3IoTrace A; } 4031 4039 void sqlite3VdbeIOTraceSql(Vdbe*); 4032 4040 SQLITE_API SQLITE_EXTERN void (SQLITE_CDECL *sqlite3IoTrace)(const char*,...); 4033 4041 #else 4034 4042 # define IOTRACE(A) ................................................................................ 4054 4062 ** Perhaps the most important point is the difference between MEMTYPE_HEAP 4055 4063 ** and MEMTYPE_LOOKASIDE. If an allocation is MEMTYPE_LOOKASIDE, that means 4056 4064 ** it might have been allocated by lookaside, except the allocation was 4057 4065 ** too large or lookaside was already full. It is important to verify 4058 4066 ** that allocations that might have been satisfied by lookaside are not 4059 4067 ** passed back to non-lookaside free() routines. Asserts such as the 4060 4068 ** example above are placed on the non-lookaside free() routines to verify 4061 -** this constraint. 4069 +** this constraint. 4062 4070 ** 4063 4071 ** All of this is no-op for a production build. It only comes into 4064 4072 ** play when the SQLITE_MEMDEBUG compile-time option is used. 4065 4073 */ 4066 4074 #ifdef SQLITE_MEMDEBUG 4067 4075 void sqlite3MemdebugSetType(void*,u8); 4068 4076 int sqlite3MemdebugHasType(void*,u8);