database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-09-02 12:21:26 +03:00
Code Activity

Track total memory usage using a 64-bit integer on 64-bit systems. Add

Browse Source 
the sqlite3_status64() interface.  Make the sqlite3_status() and
sqlite3_status64() interfaces atomic using mutexes and verify correct
mutex operation using assert() statements.

FossilOrigin-Name: 6fc4e79a2350295a15ac464593ad39d904953041
This commit is contained in:
drh
2015-03-23 19:55:21 +00:00
parent 062cf27d00 2493870d9c
commit d741129e2b
9 changed files with 169 additions and 56 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
manifest
View File

@@ -1,5 +1,5 @@
C Fix\sdatetype\ssize\sasserts\sin\sbtree.c.
D 2015-03-23T19:03:51.368
C Track\stotal\smemory\susage\susing\sa\s64-bit\sinteger\son\s64-bit\ssystems.\s\sAdd\nthe\ssqlite3_status64()\sinterface.\s\sMake\sthe\ssqlite3_status()\sand\nsqlite3_status64()\sinterfaces\satomic\susing\smutexes\sand\sverify\scorrect\nmutex\soperation\susing\sassert()\sstatements.
D 2015-03-23T19:55:21.641
F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
F Makefile.in 88a3e6261286db378fdffa1124cad11b3c05f5bb
F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -195,8 +195,8 @@ F src/journal.c b4124532212b6952f42eb2c12fa3c25701d8ba8d
F src/legacy.c ba1863ea58c4c840335a84ec276fc2b25e22bc4e
F src/lempar.c 7274c97d24bb46631e504332ccd3bd1b37841770
F src/loadext.c 86bd4e2fccd520b748cba52492ab60c4a770f660
F src/main.c fa997fa27d95febc16d57095299384b667a7f762
F src/malloc.c 13f3f1cdc0c9990c79cefaf0ceba24da983ce8cd
F src/main.c 569d45ba9eb4fbdd631d53f440bcdb4a35ab1505
F src/malloc.c e818a0db9ac0898f9dc74002f3a5baca32232d05
F src/mem0.c 6a55ebe57c46ca1a7d98da93aaa07f99f1059645
F src/mem1.c abe6ee469b6c5a35c7f22bfeb9c9bac664a1c987
F src/mem2.c f1940d9e91948dd6a908fbb9ce3835c36b5d83c3
@@ -222,7 +222,7 @@ F src/pager.h c3476e7c89cdf1c6914e50a11f3714e30b4e0a77
F src/parse.y 1299c66e7b1707322ccd8af43a359b8fb0d46d72
F src/pcache.c 10539fb959849ad6efff80050541cab3d25089d4
F src/pcache.h b44658c9c932d203510279439d891a2a83e12ba8
F src/pcache1.c 1e77432b40b7d3288327d9cdf399dcdfd2b6d3bf
F src/pcache1.c 69d137620a305f814398bd29a0c998038c0695e9
F src/pragma.c ac4f3f856b4234e85f55b0f069698a4766011100
F src/pragma.h 09c89bca58e9a44de2116cc8272b8d454657129f
F src/prepare.c 173a5a499138451b2561614ecb87d78f9f4644b9
@@ -232,12 +232,12 @@ F src/resolve.c f4d79e31ffa5820c2e3d1740baa5e9b190425f2b
F src/rowset.c eccf6af6d620aaa4579bd3b72c1b6395d9e9fa1e
F src/select.c 72ffb62e2879956302140e9f6e6ae88aee36b0e5
F src/shell.c 9c1589c8271c04c02d23cdbc2c07bb40752fa9eb
F src/sqlite.h.in c7c9111477b76c82c46bf851b619df4dd35cc095
F src/sqlite.h.in df180ecc3215e4b87dbd536507869511bec88841
F src/sqlite3.rc 992c9f5fb8285ae285d6be28240a7e8d3a7f2bad
F src/sqlite3ext.h 17d487c3c91b0b8c584a32fbeb393f6f795eea7d
F src/sqliteInt.h f2300529f3592323a98fd7acccec63d0e9082dc5
F src/sqliteInt.h e22a2bfbeed55ed3addff5e0ef34366e93ad0874
F src/sqliteLimit.h 216557999cb45f2e3578ed53ebefe228d779cb46
F src/status.c 81712116e826b0089bb221b018929536b2b5406f
F src/status.c 2e5c86866ff2f30988ce10ddbaa7ba2eaf6d4146
F src/table.c e7a09215315a978057fb42c640f890160dbcc45e
F src/tclsqlite.c fa72a7c5278662357c105ba7925c1d0972506ff9
F src/test1.c 90fbedce75330d48d99eadb7d5f4223e86969585
@@ -287,7 +287,7 @@ F src/test_vfs.c b7e6831e6fcf04c5090accff30640ec5c9630739
F src/test_vfstrace.c bab9594adc976cbe696ff3970728830b4c5ed698
F src/test_wsd.c 41cadfd9d97fe8e3e4e44f61a4a8ccd6f7ca8fe9
F src/threads.c 6bbcc9fe50c917864d48287b4792d46d6e873481
F src/tokenize.c 05e52378c46efbc1fd63cbbbf7f3c555f840f4bf
F src/tokenize.c a8d270b06e5f709930f7b67cf70a847969cb5bf3
F src/trigger.c 25571661fdeae8c7f975ff40ffec205520a3f92f
F src/update.c 3c4ecc282accf12d39edb8d524cf089645e55a13
F src/utf.c fc6b889ba0779b7722634cdeaa25f1930d93820c
@@ -1246,7 +1246,8 @@ F tool/vdbe_profile.tcl 67746953071a9f8f2f668b73fe899074e2c6d8c1
F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
P 8d27e3e16a9be79fe227e833f4770ebe09a9d90b
R b5413ce9e25a08fe53ff3be92a646869
P ff4812d0e8e6322ca8b6992925fd4ef4aee463e6 3de085eab2fbe491f2242b340851e8af8f61ad13
R fa228592c968c6dd60a3ff76053c22f4
T +closed 3de085eab2fbe491f2242b340851e8af8f61ad13
U drh
Z 5fbc203b6eb85f868f3432b74d400822
Z 5ddc58556d6343081a340eb577f95e29

2
manifest.uuid
View File

@@ -1 +1 @@
ff4812d0e8e6322ca8b6992925fd4ef4aee463e6
6fc4e79a2350295a15ac464593ad39d904953041

5
src/main.c
View File

@@ -128,6 +128,11 @@ int sqlite3_initialize(void){
}
#endif
/* If the following assert() fails on some obscure processor/compiler
** combination, the work-around is to set the correct pointer
** size at compile-time using -DSQLITE_PTRSIZE=n compile-time option */
assert( SQLITE_PTRSIZE==sizeof(char*) );
/* If SQLite is already completely initialized, then this call
** to sqlite3_initialize() should be a no-op. But the initialization
** must be complete. So isInit must not be set until the very end

33
src/malloc.c
View File

@@ -75,6 +75,13 @@ static SQLITE_WSD struct Mem0Global {
#define mem0 GLOBAL(struct Mem0Global, mem0)
/*
** Return the memory allocator mutex. sqlite3_status() needs it.
*/
sqlite3_mutex *sqlite3MallocMutex(void){
return mem0.mutex;
}
/*
** This routine runs when the memory allocator sees that the
** total memory allocation is about to exceed the soft heap
@@ -97,7 +104,7 @@ static int sqlite3MemoryAlarm(
void *pArg,
sqlite3_int64 iThreshold
){
int nUsed;
sqlite3_int64 nUsed;
sqlite3_mutex_enter(mem0.mutex);
mem0.alarmCallback = xCallback;
mem0.alarmArg = pArg;
@@ -266,7 +273,7 @@ static int mallocWithAlarm(int n, void **pp){
nFull = sqlite3GlobalConfig.m.xRoundup(n);
sqlite3StatusSet(SQLITE_STATUS_MALLOC_SIZE, n);
if( mem0.alarmCallback!=0 ){
int nUsed = sqlite3StatusValue(SQLITE_STATUS_MEMORY_USED);
sqlite3_int64 nUsed = sqlite3StatusValue(SQLITE_STATUS_MEMORY_USED);
if( nUsed >= mem0.alarmThreshold - nFull ){
mem0.nearlyFull = 1;
sqlite3MallocAlarm(nFull);
@@ -283,8 +290,8 @@ static int mallocWithAlarm(int n, void **pp){
#endif
if( p ){
nFull = sqlite3MallocSize(p);
sqlite3StatusAdd(SQLITE_STATUS_MEMORY_USED, nFull);
sqlite3StatusAdd(SQLITE_STATUS_MALLOC_COUNT, 1);
sqlite3StatusUp(SQLITE_STATUS_MEMORY_USED, nFull);
sqlite3StatusUp(SQLITE_STATUS_MALLOC_COUNT, 1);
}
*pp = p;
return nFull;
@@ -361,14 +368,14 @@ void *sqlite3ScratchMalloc(int n){
p = mem0.pScratchFree;
mem0.pScratchFree = mem0.pScratchFree->pNext;
mem0.nScratchFree--;
sqlite3StatusAdd(SQLITE_STATUS_SCRATCH_USED, 1);
sqlite3StatusUp(SQLITE_STATUS_SCRATCH_USED, 1);
sqlite3_mutex_leave(mem0.mutex);
}else{
sqlite3_mutex_leave(mem0.mutex);
p = sqlite3Malloc(n);
if( sqlite3GlobalConfig.bMemstat && p ){
sqlite3_mutex_enter(mem0.mutex);
sqlite3StatusAdd(SQLITE_STATUS_SCRATCH_OVERFLOW, sqlite3MallocSize(p));
sqlite3StatusUp(SQLITE_STATUS_SCRATCH_OVERFLOW, sqlite3MallocSize(p));
sqlite3_mutex_leave(mem0.mutex);
}
sqlite3MemdebugSetType(p, MEMTYPE_SCRATCH);
@@ -409,7 +416,7 @@ void sqlite3ScratchFree(void *p){
mem0.pScratchFree = pSlot;
mem0.nScratchFree++;
assert( mem0.nScratchFree <= (u32)sqlite3GlobalConfig.nScratch );
sqlite3StatusAdd(SQLITE_STATUS_SCRATCH_USED, -1);
sqlite3StatusDown(SQLITE_STATUS_SCRATCH_USED, 1);
sqlite3_mutex_leave(mem0.mutex);
}else{
/* Release memory back to the heap */
@@ -419,9 +426,9 @@ void sqlite3ScratchFree(void *p){
if( sqlite3GlobalConfig.bMemstat ){
int iSize = sqlite3MallocSize(p);
sqlite3_mutex_enter(mem0.mutex);
sqlite3StatusAdd(SQLITE_STATUS_SCRATCH_OVERFLOW, -iSize);
sqlite3StatusAdd(SQLITE_STATUS_MEMORY_USED, -iSize);
sqlite3StatusAdd(SQLITE_STATUS_MALLOC_COUNT, -1);
sqlite3StatusDown(SQLITE_STATUS_SCRATCH_OVERFLOW, iSize);
sqlite3StatusDown(SQLITE_STATUS_MEMORY_USED, iSize);
sqlite3StatusDown(SQLITE_STATUS_MALLOC_COUNT, 1);
sqlite3GlobalConfig.m.xFree(p);
sqlite3_mutex_leave(mem0.mutex);
}else{
@@ -481,8 +488,8 @@ void sqlite3_free(void *p){
assert( sqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) );
if( sqlite3GlobalConfig.bMemstat ){
sqlite3_mutex_enter(mem0.mutex);
sqlite3StatusAdd(SQLITE_STATUS_MEMORY_USED, -sqlite3MallocSize(p));
sqlite3StatusAdd(SQLITE_STATUS_MALLOC_COUNT, -1);
sqlite3StatusDown(SQLITE_STATUS_MEMORY_USED, sqlite3MallocSize(p));
sqlite3StatusDown(SQLITE_STATUS_MALLOC_COUNT, 1);
sqlite3GlobalConfig.m.xFree(p);
sqlite3_mutex_leave(mem0.mutex);
}else{
@@ -570,7 +577,7 @@ void *sqlite3Realloc(void *pOld, u64 nBytes){
}
if( pNew ){
nNew = sqlite3MallocSize(pNew);
sqlite3StatusAdd(SQLITE_STATUS_MEMORY_USED, nNew-nOld);
sqlite3StatusUp(SQLITE_STATUS_MEMORY_USED, nNew-nOld);
}
sqlite3_mutex_leave(mem0.mutex);
}else{

19
src/pcache1.c
View File

@@ -195,7 +195,6 @@ void sqlite3PCacheBufferSetup(void *pBuf, int sz, int n){
static void *pcache1Alloc(int nByte){
void *p = 0;
assert( sqlite3_mutex_notheld(pcache1.grp.mutex) );
sqlite3StatusSet(SQLITE_STATUS_PAGECACHE_SIZE, nByte);
if( nByte<=pcache1.szSlot ){
sqlite3_mutex_enter(pcache1.mutex);
p = (PgHdr1 *)pcache1.pFree;
@@ -204,7 +203,8 @@ static void *pcache1Alloc(int nByte){
pcache1.nFreeSlot--;
pcache1.bUnderPressure = pcache1.nFreeSlot<pcache1.nReserve;
assert( pcache1.nFreeSlot>=0 );
sqlite3StatusAdd(SQLITE_STATUS_PAGECACHE_USED, 1);
sqlite3StatusSet(SQLITE_STATUS_PAGECACHE_SIZE, nByte);
sqlite3StatusUp(SQLITE_STATUS_PAGECACHE_USED, 1);
}
sqlite3_mutex_leave(pcache1.mutex);
}
@@ -217,7 +217,8 @@ static void *pcache1Alloc(int nByte){
if( p ){
int sz = sqlite3MallocSize(p);
sqlite3_mutex_enter(pcache1.mutex);
sqlite3StatusAdd(SQLITE_STATUS_PAGECACHE_OVERFLOW, sz);
sqlite3StatusSet(SQLITE_STATUS_PAGECACHE_SIZE, nByte);
sqlite3StatusUp(SQLITE_STATUS_PAGECACHE_OVERFLOW, sz);
sqlite3_mutex_leave(pcache1.mutex);
}
#endif
@@ -235,7 +236,7 @@ static int pcache1Free(void *p){
if( p>=pcache1.pStart && p<pcache1.pEnd ){
PgFreeslot *pSlot;
sqlite3_mutex_enter(pcache1.mutex);
sqlite3StatusAdd(SQLITE_STATUS_PAGECACHE_USED, -1);
sqlite3StatusDown(SQLITE_STATUS_PAGECACHE_USED, 1);
pSlot = (PgFreeslot*)p;
pSlot->pNext = pcache1.pFree;
pcache1.pFree = pSlot;
@@ -249,7 +250,7 @@ static int pcache1Free(void *p){
nFreed = sqlite3MallocSize(p);
#ifndef SQLITE_DISABLE_PAGECACHE_OVERFLOW_STATS
sqlite3_mutex_enter(pcache1.mutex);
sqlite3StatusAdd(SQLITE_STATUS_PAGECACHE_OVERFLOW, -nFreed);
sqlite3StatusDown(SQLITE_STATUS_PAGECACHE_OVERFLOW, nFreed);
sqlite3_mutex_leave(pcache1.mutex);
#endif
sqlite3_free(p);
@@ -986,6 +987,14 @@ void sqlite3PCacheSetDefault(void){
*/
int sqlite3HeaderSizePcache1(void){ return ROUND8(sizeof(PgHdr1)); }
/*
** Return the global mutex used by this PCACHE implementation. The
** sqlite3_status() routine needs access to this mutex.
*/
sqlite3_mutex *sqlite3Pcache1Mutex(void){
return pcache1.mutex;
}
#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
/*
** This function is called to free superfluous dynamically allocated memory

23
src/sqlite.h.in
View File

@@ -1550,7 +1550,7 @@ struct sqlite3_mem_methods {
** <li> [sqlite3_memory_used()]
** <li> [sqlite3_memory_highwater()]
** <li> [sqlite3_soft_heap_limit64()]
** <li> [sqlite3_status()]
** <li> [sqlite3_status64()]
** </ul>)^
** ^Memory allocation statistics are enabled by default unless SQLite is
** compiled with [SQLITE_DEFAULT_MEMSTATUS]=0 in which case memory
@@ -6305,7 +6305,7 @@ int sqlite3_test_control(int op, ...);
/*
** CAPI3REF: SQLite Runtime Status
**
** ^This interface is used to retrieve runtime status information
** ^These interfaces are used to retrieve runtime status information
** about the performance of SQLite, and optionally to reset various
** highwater marks. ^The first argument is an integer code for
** the specific parameter to measure. ^(Recognized integer codes
@@ -6319,19 +6319,22 @@ int sqlite3_test_control(int op, ...);
** ^(Other parameters record only the highwater mark and not the current
** value. For these latter parameters nothing is written into *pCurrent.)^
**
** ^The sqlite3_status() routine returns SQLITE_OK on success and a
** non-zero [error code] on failure.
** ^The sqlite3_status() and sqlite3_status64() routines return
** SQLITE_OK on success and a non-zero [error code] on failure.
**
** This routine is threadsafe but is not atomic. This routine can be
** called while other threads are running the same or different SQLite
** interfaces. However the values returned in *pCurrent and
** *pHighwater reflect the status of SQLite at different points in time
** and it is possible that another thread might change the parameter
** in between the times when *pCurrent and *pHighwater are written.
** If either the current value or the highwater mark is too large to
** be represented by a 32-bit integer, then the values returned by
** sqlite3_status() are undefined.
**
** See also: [sqlite3_db_status()]
*/
int sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag);
int sqlite3_status64(
int op,
sqlite3_int64 *pCurrent,
sqlite3_int64 *pHighwater,
int resetFlag
);
/*

23
src/sqliteInt.h
View File

@@ -594,6 +594,20 @@ typedef INT8_TYPE i8; /* 1-byte signed integer */
*/
typedef INT16_TYPE LogEst;
/*
** Set the SQLITE_PTRSIZE macro to the number of bytes in a pointer
*/
#ifndef SQLITE_PTRSIZE
# if defined(__SIZEOF_POINTER__)
# define SQLITE_PTRSIZE __SIZEOF_POINTER__
# elif defined(i386) || defined(__i386__) || defined(_M_IX86) || \
defined(_M_ARM) || defined(__arm__) || defined(__x86)
# define SQLITE_PTRSIZE 4
# else
# define SQLITE_PTRSIZE 8
# endif
#endif
/*
** Macros to determine whether the machine is big or little endian,
** and whether or not that determination is run-time or compile-time.
@@ -3097,10 +3111,15 @@ const sqlite3_mem_methods *sqlite3MemGetMemsys5(void);
int sqlite3MutexEnd(void);
#endif
int sqlite3StatusValue(int);
void sqlite3StatusAdd(int, int);
sqlite3_int64 sqlite3StatusValue(int);
void sqlite3StatusUp(int, int);
void sqlite3StatusDown(int, int);
void sqlite3StatusSet(int, int);
/* Access to mutexes used by sqlite3_status() */
sqlite3_mutex *sqlite3Pcache1Mutex(void);
sqlite3_mutex *sqlite3MallocMutex(void);
#ifndef SQLITE_OMIT_FLOATING_POINT
int sqlite3IsNaN(double);
#else

93
src/status.c
View File

@@ -21,10 +21,32 @@
*/
typedef struct sqlite3StatType sqlite3StatType;
static SQLITE_WSD struct sqlite3StatType {
int nowValue[10]; /* Current value */
int mxValue[10]; /* Maximum value */
#if SQLITE_PTRSIZE>4
sqlite3_int64 nowValue[10]; /* Current value */
sqlite3_int64 mxValue[10]; /* Maximum value */
#else
u32 nowValue[10]; /* Current value */
u32 mxValue[10]; /* Maximum value */
#endif
} sqlite3Stat = { {0,}, {0,} };
/*
** Elements of sqlite3Stat[] are protected by either the memory allocator
** mutex, or by the pcache1 mutex. The following array determines which.
*/
static const char statMutex[] = {
0, /* SQLITE_STATUS_MEMORY_USED */
1, /* SQLITE_STATUS_PAGECACHE_USED */
1, /* SQLITE_STATUS_PAGECACHE_OVERFLOW */
0, /* SQLITE_STATUS_SCRATCH_USED */
0, /* SQLITE_STATUS_SCRATCH_OVERFLOW */
0, /* SQLITE_STATUS_MALLOC_SIZE */
0, /* SQLITE_STATUS_PARSER_STACK */
1, /* SQLITE_STATUS_PAGECACHE_SIZE */
0, /* SQLITE_STATUS_SCRATCH_SIZE */
0, /* SQLITE_STATUS_MALLOC_COUNT */
};
/* The "wsdStat" macro will resolve to the status information
** state vector. If writable static data is unsupported on the target,
@@ -41,33 +63,60 @@ static SQLITE_WSD struct sqlite3StatType {
#endif
/*
** Return the current value of a status parameter.
** Return the current value of a status parameter. The caller must
** be holding the appropriate mutex.
*/
int sqlite3StatusValue(int op){
sqlite3_int64 sqlite3StatusValue(int op){
wsdStatInit;
assert( op>=0 && op<ArraySize(wsdStat.nowValue) );
assert( op>=0 && op<ArraySize(statMutex) );
assert( sqlite3_mutex_held(statMutex[op] ? sqlite3Pcache1Mutex()
: sqlite3MallocMutex()) );
return wsdStat.nowValue[op];
}
/*
** Add N to the value of a status record. It is assumed that the
** caller holds appropriate locks.
** Add N to the value of a status record. The caller must hold the
** appropriate mutex. (Locking is checked by assert()).
**
** The StatusUp() routine can accept positive or negative values for N.
** The value of N is added to the current status value and the high-water
** mark is adjusted if necessary.
**
** The StatusDown() routine lowers the current value by N. The highwater
** mark is unchanged. N must be non-negative for StatusDown().
*/
void sqlite3StatusAdd(int op, int N){
void sqlite3StatusUp(int op, int N){
wsdStatInit;
assert( op>=0 && op<ArraySize(wsdStat.nowValue) );
assert( op>=0 && op<ArraySize(statMutex) );
assert( sqlite3_mutex_held(statMutex[op] ? sqlite3Pcache1Mutex()
: sqlite3MallocMutex()) );
wsdStat.nowValue[op] += N;
if( wsdStat.nowValue[op]>wsdStat.mxValue[op] ){
wsdStat.mxValue[op] = wsdStat.nowValue[op];
}
}
void sqlite3StatusDown(int op, int N){
wsdStatInit;
assert( N>=0 );
assert( op>=0 && op<ArraySize(statMutex) );
assert( sqlite3_mutex_held(statMutex[op] ? sqlite3Pcache1Mutex()
: sqlite3MallocMutex()) );
assert( op>=0 && op<ArraySize(wsdStat.nowValue) );
wsdStat.nowValue[op] -= N;
}
/*
** Set the value of a status to X.
** Set the value of a status to X. The highwater mark is adjusted if
** necessary. The caller must hold the appropriate mutex.
*/
void sqlite3StatusSet(int op, int X){
wsdStatInit;
assert( op>=0 && op<ArraySize(wsdStat.nowValue) );
assert( op>=0 && op<ArraySize(statMutex) );
assert( sqlite3_mutex_held(statMutex[op] ? sqlite3Pcache1Mutex()
: sqlite3MallocMutex()) );
wsdStat.nowValue[op] = X;
if( wsdStat.nowValue[op]>wsdStat.mxValue[op] ){
wsdStat.mxValue[op] = wsdStat.nowValue[op];
@@ -76,12 +125,14 @@ void sqlite3StatusSet(int op, int X){
/*
** Query status information.
**
** This implementation assumes that reading or writing an aligned
** 32-bit integer is an atomic operation. If that assumption is not true,
** then this routine is not threadsafe.
*/
int sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag){
int sqlite3_status64(
int op,
sqlite3_int64 *pCurrent,
sqlite3_int64 *pHighwater,
int resetFlag
){
sqlite3_mutex *pMutex;
wsdStatInit;
if( op<0 || op>=ArraySize(wsdStat.nowValue) ){
return SQLITE_MISUSE_BKPT;
@@ -89,13 +140,29 @@ int sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag){
#ifdef SQLITE_ENABLE_API_ARMOR
if( pCurrent==0 || pHighwater==0 ) return SQLITE_MISUSE_BKPT;
#endif
pMutex = statMutex[op] ? sqlite3Pcache1Mutex() : sqlite3MallocMutex();
sqlite3_mutex_enter(pMutex);
*pCurrent = wsdStat.nowValue[op];
*pHighwater = wsdStat.mxValue[op];
if( resetFlag ){
wsdStat.mxValue[op] = wsdStat.nowValue[op];
}
sqlite3_mutex_leave(pMutex);
return SQLITE_OK;
}
int sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag){
sqlite3_int64 iCur, iHwtr;
int rc;
#ifdef SQLITE_ENABLE_API_ARMOR
if( pCurrent==0 || pHighwater==0 ) return SQLITE_MISUSE_BKPT;
#endif
rc = sqlite3_status64(op, &iCur, &iHwtr, resetFlag);
if( rc==0 ){
*pCurrent = (int)iCur;
*pHighwater = (int)iHwtr;
}
return rc;
}
/*
** Query status information for a single database connection

2
src/tokenize.c
View File

@@ -459,9 +459,11 @@ abort_parse:
sqlite3Parser(pEngine, 0, pParse->sLastToken, pParse);
}
#ifdef YYTRACKMAXSTACKDEPTH
sqlite3_mutex_enter(sqlite3MallocMutex());
sqlite3StatusSet(SQLITE_STATUS_PARSER_STACK,
sqlite3ParserStackPeak(pEngine)
);
sqlite3_mutex_leave(sqlite3MallocMutex());
#endif /* YYDEBUG */
sqlite3ParserFree(pEngine, sqlite3_free);
db->lookaside.bEnabled = enableLookaside;