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Overview
| Comment: | Fix harmless compiler warnings. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | threads |
| Files: | files | file ages | folders |
| SHA1: |
f8f72ecb9052a4cace1db75879fb8b51 |
| User & Date: | drh 2014-04-18 13:40:07 |
Context
|
2014-04-18
| ||
| 13:57 | Add to speedtest1.c the --threads option for setting the SQLITE_CONFIG_WORKER_THREADS configuration. (check-in: 5fce40c4 user: drh tags: threads) | |
| 13:40 | Fix harmless compiler warnings. (check-in: f8f72ecb user: drh tags: threads) | |
| 12:38 | Merge recent trunk changes into the threads branch. (check-in: 8729aa3e user: drh tags: threads) | |
Changes
Changes to src/vdbe.c.
4230 4231 4232 4233 4234 4235 4236 4237 4238 4239 4240 4241 4242 4243 .... 4479 4480 4481 4482 4483 4484 4485 4486 4487 4488 4489 4490 4491 4492 4493 .... 4638 4639 4640 4641 4642 4643 4644 4645 4646 4647 4648 4649 4650 4651 4652 |
int nIgnore;
pC = p->apCsr[pOp->p1];
assert( isSorter(pC) );
assert( pOp->p4type==P4_INT32 );
pIn3 = &aMem[pOp->p3];
nIgnore = pOp->p4.i;
rc = sqlite3VdbeSorterCompare(pC, pIn3, nIgnore, &res);
VdbeBranchTaken(res!=0,2);
if( res ){
pc = pOp->p2-1;
}
break;
};
................................................................................
assert( pOp->p1>=0 && pOp->p1<p->nCursor );
pC = p->apCsr[pOp->p1];
assert( pC!=0 );
assert( isSorter(pC)==(pOp->opcode==OP_SorterSort) );
res = 1;
if( isSorter(pC) ){
rc = sqlite3VdbeSorterRewind(db, pC, &res);
}else{
pCrsr = pC->pCursor;
assert( pCrsr );
rc = sqlite3BtreeFirst(pCrsr, &res);
pC->deferredMoveto = 0;
pC->cacheStatus = CACHE_STALE;
pC->rowidIsValid = 0;
................................................................................
pCrsr = pC->pCursor;
if( pOp->p5 & OPFLAG_NCHANGE ) p->nChange++;
assert( pCrsr!=0 );
assert( pC->isTable==0 );
rc = ExpandBlob(pIn2);
if( rc==SQLITE_OK ){
if( isSorter(pC) ){
rc = sqlite3VdbeSorterWrite(db, pC, pIn2);
}else{
nKey = pIn2->n;
zKey = pIn2->z;
rc = sqlite3BtreeInsert(pCrsr, zKey, nKey, "", 0, 0, pOp->p3,
((pOp->p5 & OPFLAG_USESEEKRESULT) ? pC->seekResult : 0)
);
assert( pC->deferredMoveto==0 );
|
> | | |
4230 4231 4232 4233 4234 4235 4236 4237 4238 4239 4240 4241 4242 4243 4244 .... 4480 4481 4482 4483 4484 4485 4486 4487 4488 4489 4490 4491 4492 4493 4494 .... 4639 4640 4641 4642 4643 4644 4645 4646 4647 4648 4649 4650 4651 4652 4653 |
int nIgnore; pC = p->apCsr[pOp->p1]; assert( isSorter(pC) ); assert( pOp->p4type==P4_INT32 ); pIn3 = &aMem[pOp->p3]; nIgnore = pOp->p4.i; res = 0; rc = sqlite3VdbeSorterCompare(pC, pIn3, nIgnore, &res); VdbeBranchTaken(res!=0,2); if( res ){ pc = pOp->p2-1; } break; }; ................................................................................ assert( pOp->p1>=0 && pOp->p1<p->nCursor ); pC = p->apCsr[pOp->p1]; assert( pC!=0 ); assert( isSorter(pC)==(pOp->opcode==OP_SorterSort) ); res = 1; if( isSorter(pC) ){ rc = sqlite3VdbeSorterRewind(pC, &res); }else{ pCrsr = pC->pCursor; assert( pCrsr ); rc = sqlite3BtreeFirst(pCrsr, &res); pC->deferredMoveto = 0; pC->cacheStatus = CACHE_STALE; pC->rowidIsValid = 0; ................................................................................ pCrsr = pC->pCursor; if( pOp->p5 & OPFLAG_NCHANGE ) p->nChange++; assert( pCrsr!=0 ); assert( pC->isTable==0 ); rc = ExpandBlob(pIn2); if( rc==SQLITE_OK ){ if( isSorter(pC) ){ rc = sqlite3VdbeSorterWrite(pC, pIn2); }else{ nKey = pIn2->n; zKey = pIn2->z; rc = sqlite3BtreeInsert(pCrsr, zKey, nKey, "", 0, 0, pOp->p3, ((pOp->p5 & OPFLAG_USESEEKRESULT) ? pC->seekResult : 0) ); assert( pC->deferredMoveto==0 ); |
Changes to src/vdbeInt.h.
438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 |
int sqlite3VdbeTransferError(Vdbe *p); int sqlite3VdbeSorterInit(sqlite3 *, int, VdbeCursor *); void sqlite3VdbeSorterReset(sqlite3 *, VdbeSorter *); void sqlite3VdbeSorterClose(sqlite3 *, VdbeCursor *); int sqlite3VdbeSorterRowkey(const VdbeCursor *, Mem *); int sqlite3VdbeSorterNext(sqlite3 *, const VdbeCursor *, int *); int sqlite3VdbeSorterRewind(sqlite3 *, const VdbeCursor *, int *); int sqlite3VdbeSorterWrite(sqlite3 *, const VdbeCursor *, Mem *); int sqlite3VdbeSorterCompare(const VdbeCursor *, Mem *, int, int *); #if !defined(SQLITE_OMIT_SHARED_CACHE) && SQLITE_THREADSAFE>0 void sqlite3VdbeEnter(Vdbe*); void sqlite3VdbeLeave(Vdbe*); #else # define sqlite3VdbeEnter(X) |
| | |
438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 |
int sqlite3VdbeTransferError(Vdbe *p); int sqlite3VdbeSorterInit(sqlite3 *, int, VdbeCursor *); void sqlite3VdbeSorterReset(sqlite3 *, VdbeSorter *); void sqlite3VdbeSorterClose(sqlite3 *, VdbeCursor *); int sqlite3VdbeSorterRowkey(const VdbeCursor *, Mem *); int sqlite3VdbeSorterNext(sqlite3 *, const VdbeCursor *, int *); int sqlite3VdbeSorterRewind(const VdbeCursor *, int *); int sqlite3VdbeSorterWrite(const VdbeCursor *, Mem *); int sqlite3VdbeSorterCompare(const VdbeCursor *, Mem *, int, int *); #if !defined(SQLITE_OMIT_SHARED_CACHE) && SQLITE_THREADSAFE>0 void sqlite3VdbeEnter(Vdbe*); void sqlite3VdbeLeave(Vdbe*); #else # define sqlite3VdbeEnter(X) |
Changes to src/vdbesort.c.
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**
** Or, if an error occurs, return an SQLite error code. The final value of
** *pp is undefined in this case.
*/
static int vdbeSorterMapFile(SortSubtask *pTask, SorterFile *pFile, u8 **pp){
int rc = SQLITE_OK;
if( pFile->iEof<=(i64)(pTask->pSorter->db->nMaxSorterMmap) ){
rc = sqlite3OsFetch(pFile->pFd, 0, pFile->iEof, (void**)pp);
}
return rc;
}
/*
** Seek iterator pIter to offset iOff within file pFile. Return SQLITE_OK
** if successful, or an SQLite error code if an error occurs.
................................................................................
#ifdef SQLITE_DEBUG_SORTER_THREADS
static void vdbeSorterWorkDebug(SortSubtask *pTask, const char *zEvent){
i64 t;
int iTask = (pTask - pTask->pSorter->aTask);
sqlite3OsCurrentTimeInt64(pTask->pSorter->db->pVfs, &t);
fprintf(stderr, "%lld:%d %s\n", t, iTask, zEvent);
}
static void vdbeSorterRewindDebug(sqlite3 *db, const char *zEvent){
i64 t;
sqlite3OsCurrentTimeInt64(db->pVfs, &t);
fprintf(stderr, "%lld:X %s\n", t, zEvent);
}
static void vdbeSorterPopulateDebug(
SortSubtask *pTask,
const char *zEvent
){
i64 t;
................................................................................
i64 t;
sqlite3OsCurrentTimeInt64(pTask->pSorter->db->pVfs, &t);
fprintf(stderr, "%lld:main %s\n", t, zEvent);
}
}
#else
# define vdbeSorterWorkDebug(x,y)
# define vdbeSorterRewindDebug(x,y)
# define vdbeSorterPopulateDebug(x,y)
# define vdbeSorterBlockDebug(x,y,z)
#endif
#if SQLITE_MAX_WORKER_THREADS>0
/*
** Join thread pTask->thread.
................................................................................
** the specific VFS implementation.
*/
static void vdbeSorterExtendFile(sqlite3 *db, sqlite3_file *pFile, i64 nByte){
if( nByte<=(i64)(db->nMaxSorterMmap) ){
int rc = sqlite3OsTruncate(pFile, nByte);
if( rc==SQLITE_OK ){
void *p = 0;
sqlite3OsFetch(pFile, 0, nByte, &p);
sqlite3OsUnfetch(pFile, 0, p);
}
}
}
#else
# define vdbeSorterExtendFile(x,y,z) SQLITE_OK
#endif
................................................................................
}
*pbEof = (pMerger->aIter[pMerger->aTree[1]].pFile==0);
}
return rc;
}
/*
** The main routine for background threads that write level-0 PMAs.
*/
static void *vdbeSorterFlushThread(void *pCtx){
SortSubtask *pTask = (SortSubtask*)pCtx;
int rc; /* Return code */
assert( pTask->bDone==0 );
rc = vdbeSorterListToPMA(pTask, &pTask->list);
pTask->bDone = 1;
return SQLITE_INT_TO_PTR(rc);
}
/*
** Flush the current contents of VdbeSorter.list to a new PMA, possibly
** using a background thread.
*/
static int vdbeSorterFlushPMA(VdbeSorter *pSorter){
#if SQLITE_MAX_WORKER_THREADS==0
................................................................................
}
rc = vdbeSorterCreateThread(pTask, vdbeSorterFlushThread, pCtx);
}
}
return rc;
#endif
}
/*
** Add a record to the sorter.
*/
int sqlite3VdbeSorterWrite(
sqlite3 *db, /* Database handle */
const VdbeCursor *pCsr, /* Sorter cursor */
Mem *pVal /* Memory cell containing record */
){
VdbeSorter *pSorter = pCsr->pSorter;
int rc = SQLITE_OK; /* Return Code */
SorterRecord *pNew; /* New list element */
................................................................................
);
pSorter->list.aMemory = aNew;
pSorter->nMemory = nNew;
}
pNew = (SorterRecord*)&pSorter->list.aMemory[pSorter->iMemory];
pSorter->iMemory += ROUND8(nReq);
pNew->u.iNext = (u8*)(pSorter->list.pList) - pSorter->list.aMemory;
}else{
pNew = (SorterRecord *)sqlite3Malloc(nReq);
if( pNew==0 ){
return SQLITE_NOMEM;
}
pNew->u.pNext = pSorter->list.pList;
}
................................................................................
}else{
vdbeMergeEngineFree(pMerger);
rc = SQLITE_NOMEM;
}
return rc;
}
/*
** Set the "use-threads" flag on object pIncr.
*/
static void vdbeIncrSetThreads(IncrMerger *pIncr, int bUseThread){
if( bUseThread ){
pIncr->bUseThread = 1;
pIncr->pTask->file2.iEof -= pIncr->mxSz;
}
}
#define INCRINIT_NORMAL 0
#define INCRINIT_TASK 1
#define INCRINIT_ROOT 2
static int vdbePmaReaderIncrInit(PmaReader *pIter, int eMode);
/*
................................................................................
**
** SQLITE_OK is returned if successful, or an SQLite error code otherwise.
*/
static int vdbeSorterSetupMerge(VdbeSorter *pSorter){
int rc; /* Return code */
SortSubtask *pTask0 = &pSorter->aTask[0];
MergeEngine *pMain = 0;
sqlite3 *db = pTask0->pSorter->db;
int iTask;
rc = vdbeSorterMergeTreeBuild(pSorter, &pMain);
if( rc==SQLITE_OK ){
#if SQLITE_MAX_WORKER_THREADS
if( pSorter->bUseThreads ){
PmaReader *pIter;
SortSubtask *pLast = &pSorter->aTask[pSorter->nTask-1];
rc = vdbeSortAllocUnpacked(pLast);
if( rc==SQLITE_OK ){
pIter = (PmaReader*)sqlite3DbMallocZero(db, sizeof(PmaReader));
pSorter->pReader = pIter;
}
................................................................................
/*
** Once the sorter has been populated by calls to sqlite3VdbeSorterWrite,
** this function is called to prepare for iterating through the records
** in sorted order.
*/
int sqlite3VdbeSorterRewind(sqlite3 *db, const VdbeCursor *pCsr, int *pbEof){
VdbeSorter *pSorter = pCsr->pSorter;
int rc = SQLITE_OK; /* Return code */
assert( pSorter );
/* If no data has been written to disk, then do not do so now. Instead,
** sort the VdbeSorter.pRecord list. The vdbe layer will read data directly
................................................................................
if( pSorter->list.pList ){
rc = vdbeSorterFlushPMA(pSorter);
}
/* Join all threads */
rc = vdbeSorterJoinAll(pSorter, rc);
vdbeSorterRewindDebug(db, "rewind");
/* Assuming no errors have occurred, set up a merger structure to
** incrementally read and merge all remaining PMAs. */
assert( pSorter->pReader==0 );
if( rc==SQLITE_OK ){
rc = vdbeSorterSetupMerge(pSorter);
*pbEof = 0;
}
vdbeSorterRewindDebug(db, "rewinddone");
return rc;
}
/*
** Advance to the next element in the sorter.
*/
int sqlite3VdbeSorterNext(sqlite3 *db, const VdbeCursor *pCsr, int *pbEof){
|
| | | | | > > | < | > > > < > > | | | |
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**
** Or, if an error occurs, return an SQLite error code. The final value of
** *pp is undefined in this case.
*/
static int vdbeSorterMapFile(SortSubtask *pTask, SorterFile *pFile, u8 **pp){
int rc = SQLITE_OK;
if( pFile->iEof<=(i64)(pTask->pSorter->db->nMaxSorterMmap) ){
rc = sqlite3OsFetch(pFile->pFd, 0, (int)pFile->iEof, (void**)pp);
}
return rc;
}
/*
** Seek iterator pIter to offset iOff within file pFile. Return SQLITE_OK
** if successful, or an SQLite error code if an error occurs.
................................................................................
#ifdef SQLITE_DEBUG_SORTER_THREADS
static void vdbeSorterWorkDebug(SortSubtask *pTask, const char *zEvent){
i64 t;
int iTask = (pTask - pTask->pSorter->aTask);
sqlite3OsCurrentTimeInt64(pTask->pSorter->db->pVfs, &t);
fprintf(stderr, "%lld:%d %s\n", t, iTask, zEvent);
}
static void vdbeSorterRewindDebug(const char *zEvent){
i64 t;
sqlite3OsCurrentTimeInt64(sqlite3_vfs_find(0), &t);
fprintf(stderr, "%lld:X %s\n", t, zEvent);
}
static void vdbeSorterPopulateDebug(
SortSubtask *pTask,
const char *zEvent
){
i64 t;
................................................................................
i64 t;
sqlite3OsCurrentTimeInt64(pTask->pSorter->db->pVfs, &t);
fprintf(stderr, "%lld:main %s\n", t, zEvent);
}
}
#else
# define vdbeSorterWorkDebug(x,y)
# define vdbeSorterRewindDebug(y)
# define vdbeSorterPopulateDebug(x,y)
# define vdbeSorterBlockDebug(x,y,z)
#endif
#if SQLITE_MAX_WORKER_THREADS>0
/*
** Join thread pTask->thread.
................................................................................
** the specific VFS implementation.
*/
static void vdbeSorterExtendFile(sqlite3 *db, sqlite3_file *pFile, i64 nByte){
if( nByte<=(i64)(db->nMaxSorterMmap) ){
int rc = sqlite3OsTruncate(pFile, nByte);
if( rc==SQLITE_OK ){
void *p = 0;
sqlite3OsFetch(pFile, 0, (int)nByte, &p);
sqlite3OsUnfetch(pFile, 0, p);
}
}
}
#else
# define vdbeSorterExtendFile(x,y,z) SQLITE_OK
#endif
................................................................................
}
*pbEof = (pMerger->aIter[pMerger->aTree[1]].pFile==0);
}
return rc;
}
#if SQLITE_MAX_WORKER_THREADS>0
/*
** The main routine for background threads that write level-0 PMAs.
*/
static void *vdbeSorterFlushThread(void *pCtx){
SortSubtask *pTask = (SortSubtask*)pCtx;
int rc; /* Return code */
assert( pTask->bDone==0 );
rc = vdbeSorterListToPMA(pTask, &pTask->list);
pTask->bDone = 1;
return SQLITE_INT_TO_PTR(rc);
}
#endif /* SQLITE_MAX_WORKER_THREADS>0 */
/*
** Flush the current contents of VdbeSorter.list to a new PMA, possibly
** using a background thread.
*/
static int vdbeSorterFlushPMA(VdbeSorter *pSorter){
#if SQLITE_MAX_WORKER_THREADS==0
................................................................................
}
rc = vdbeSorterCreateThread(pTask, vdbeSorterFlushThread, pCtx);
}
}
return rc;
#endif /* SQLITE_MAX_WORKER_THREADS!=0 */
}
/*
** Add a record to the sorter.
*/
int sqlite3VdbeSorterWrite(
const VdbeCursor *pCsr, /* Sorter cursor */
Mem *pVal /* Memory cell containing record */
){
VdbeSorter *pSorter = pCsr->pSorter;
int rc = SQLITE_OK; /* Return Code */
SorterRecord *pNew; /* New list element */
................................................................................
);
pSorter->list.aMemory = aNew;
pSorter->nMemory = nNew;
}
pNew = (SorterRecord*)&pSorter->list.aMemory[pSorter->iMemory];
pSorter->iMemory += ROUND8(nReq);
pNew->u.iNext = (int)((u8*)(pSorter->list.pList) - pSorter->list.aMemory);
}else{
pNew = (SorterRecord *)sqlite3Malloc(nReq);
if( pNew==0 ){
return SQLITE_NOMEM;
}
pNew->u.pNext = pSorter->list.pList;
}
................................................................................
}else{
vdbeMergeEngineFree(pMerger);
rc = SQLITE_NOMEM;
}
return rc;
}
#if SQLITE_MAX_WORKER_THREADS>0
/*
** Set the "use-threads" flag on object pIncr.
*/
static void vdbeIncrSetThreads(IncrMerger *pIncr, int bUseThread){
if( bUseThread ){
pIncr->bUseThread = 1;
pIncr->pTask->file2.iEof -= pIncr->mxSz;
}
}
#endif /* SQLITE_MAX_WORKER_THREADS>0 */
#define INCRINIT_NORMAL 0
#define INCRINIT_TASK 1
#define INCRINIT_ROOT 2
static int vdbePmaReaderIncrInit(PmaReader *pIter, int eMode);
/*
................................................................................
**
** SQLITE_OK is returned if successful, or an SQLite error code otherwise.
*/
static int vdbeSorterSetupMerge(VdbeSorter *pSorter){
int rc; /* Return code */
SortSubtask *pTask0 = &pSorter->aTask[0];
MergeEngine *pMain = 0;
#if SQLITE_MAX_WORKER_THREADS
sqlite3 *db = pTask0->pSorter->db;
#endif
rc = vdbeSorterMergeTreeBuild(pSorter, &pMain);
if( rc==SQLITE_OK ){
#if SQLITE_MAX_WORKER_THREADS
if( pSorter->bUseThreads ){
int iTask;
PmaReader *pIter;
SortSubtask *pLast = &pSorter->aTask[pSorter->nTask-1];
rc = vdbeSortAllocUnpacked(pLast);
if( rc==SQLITE_OK ){
pIter = (PmaReader*)sqlite3DbMallocZero(db, sizeof(PmaReader));
pSorter->pReader = pIter;
}
................................................................................
/*
** Once the sorter has been populated by calls to sqlite3VdbeSorterWrite,
** this function is called to prepare for iterating through the records
** in sorted order.
*/
int sqlite3VdbeSorterRewind(const VdbeCursor *pCsr, int *pbEof){
VdbeSorter *pSorter = pCsr->pSorter;
int rc = SQLITE_OK; /* Return code */
assert( pSorter );
/* If no data has been written to disk, then do not do so now. Instead,
** sort the VdbeSorter.pRecord list. The vdbe layer will read data directly
................................................................................
if( pSorter->list.pList ){
rc = vdbeSorterFlushPMA(pSorter);
}
/* Join all threads */
rc = vdbeSorterJoinAll(pSorter, rc);
vdbeSorterRewindDebug("rewind");
/* Assuming no errors have occurred, set up a merger structure to
** incrementally read and merge all remaining PMAs. */
assert( pSorter->pReader==0 );
if( rc==SQLITE_OK ){
rc = vdbeSorterSetupMerge(pSorter);
*pbEof = 0;
}
vdbeSorterRewindDebug("rewinddone");
return rc;
}
/*
** Advance to the next element in the sorter.
*/
int sqlite3VdbeSorterNext(sqlite3 *db, const VdbeCursor *pCsr, int *pbEof){
|