contrib/sqlite3/sqlite3.c

39978   struct flock *pLock,  /* The description of the lock */
39982   int rc = osFcntl(h,F_SETLK,pLock);
39990     rc = osFcntl(h,F_SETLK,pLock);
40000 ** described by pLock.
40017 static int unixFileLock(unixFile *pFile, struct flock *pLock){
40038     rc = osSetPosixAdvisoryLock(pFile->h, pLock, pFile);
69819 ** A linked list of the following structures is stored at BtShared.pLock.
69829   BtLock *pNext;        /* Next in BtShared.pLock list */
69967   BtLock *pLock;        /* List of locks held on this shared-btree struct */
70644   ** manipulate entries in the BtShared.pLock linked list used to store
70717   BtLock *pLock;
70723   for(pLock=pBt->pLock; pLock; pLock=pLock->pNext){
70724     printf(" %p/%u%s", pLock->pBtree, pLock->iTable,
70725            pLock->eLock==READ_LOCK ? "R" : "W");
70726     while( pLock->pNext && pLock->pBtree==pLock->pNext->pBtree ){
70727       pLock = pLock->pNext;
70728       printf(",%u%s", pLock->iTable, pLock->eLock==READ_LOCK ? "R" : "W");
70769   BtLock *pLock;
70819   for(pLock=pBtree->pBt->pLock; pLock; pLock=pLock->pNext){
70820     if( pLock->pBtree==pBtree
70821      && (pLock->iTable==iTab || (pLock->eLock==WRITE_LOCK && pLock->iTable==1))
70822      && pLock->eLock>=eLockType
70901   for(pIter=pBt->pLock; pIter; pIter=pIter->pNext){
70946   BtLock *pLock = 0;
70967   for(pIter=pBt->pLock; pIter; pIter=pIter->pNext){
70969       pLock = pIter;
70977   if( !pLock ){
70978     pLock = (BtLock *)sqlite3MallocZero(sizeof(BtLock));
70979     if( !pLock ){
70982     pLock->iTable = iTable;
70983     pLock->pBtree = p;
70984     pLock->pNext = pBt->pLock;
70985     pBt->pLock = pLock;
70993   if( eLock>pLock->eLock ){
70994     pLock->eLock = eLock;
71012   BtLock **ppIter = &pBt->pLock;
71021     BtLock *pLock = *ppIter;
71022     assert( (pBt->btsFlags & BTS_EXCLUSIVE)==0 || pBt->pWriter==pLock->pBtree );
71023     assert( pLock->pBtree->inTrans>=pLock->eLock );
71024     if( pLock->pBtree==p ){
71025       *ppIter = pLock->pNext;
71026       assert( pLock->iTable!=1 || pLock==&p->lock );
71027       if( pLock->iTable!=1 ){
71028         sqlite3_free(pLock);
71031       ppIter = &pLock->pNext;
71062     BtLock *pLock;
71065     for(pLock=pBt->pLock; pLock; pLock=pLock->pNext){
71066       assert( pLock->eLock==READ_LOCK || pLock->pBtree==p );
71067       pLock->eLock = READ_LOCK;
74172       for(pIter=pBt->pLock; pIter; pIter=pIter->pNext){
74251         p->lock.pNext = pBt->pLock;
74252         pBt->pLock = &p->lock;