43270   int ofst,              /* First byte of the locking range */  in unixShmSystemLock()  argument
43282   assert( (ofst==UNIX_SHM_DMS && n==1)  in unixShmSystemLock()
43283        || (ofst>=UNIX_SHM_BASE && ofst+n<=(UNIX_SHM_BASE+SQLITE_SHM_NLOCK))  in unixShmSystemLock()
43285   if( ofst==UNIX_SHM_DMS ){  in unixShmSystemLock()
43291     for(ii=ofst-UNIX_SHM_BASE; ii<ofst-UNIX_SHM_BASE+n; ii++){  in unixShmSystemLock()
43305   assert( ofst>=UNIX_SHM_BASE && ofst<=(UNIX_SHM_DMS+SQLITE_SHM_NLOCK) );  in unixShmSystemLock()
43312     f.l_start = ofst;  in unixShmSystemLock()
43329       OSTRACE(("unlock %d..%d ok\n", ofst, ofst+n-1));  in unixShmSystemLock()
43331       OSTRACE(("read-lock %d..%d ok\n", ofst, ofst+n-1));  in unixShmSystemLock()
43334       OSTRACE(("write-lock %d..%d ok\n", ofst, ofst+n-1));  in unixShmSystemLock()
43338       OSTRACE(("unlock %d..%d failed\n", ofst, ofst+n-1));  in unixShmSystemLock()
43340       OSTRACE(("read-lock %d..%d failed\n", ofst, ofst+n-1));  in unixShmSystemLock()
43343       OSTRACE(("write-lock %d..%d failed\n", ofst, ofst+n-1));  in unixShmSystemLock()
43849   int ofst,                  /* First lock to acquire or release */  in unixShmLock()  argument
43857   u16 mask = (1<<(ofst+n)) - (1<<ofst); /* Mask of locks to take or release */  in unixShmLock()
43868   assert( ofst>=0 && ofst+n<=SQLITE_SHM_NLOCK );  in unixShmLock()
43894           (ofst!=2 || lockMask==0)  in unixShmLock()
43895        && (ofst!=1 || lockMask==0 || lockMask==2)  in unixShmLock()
43896        && (ofst!=0 || lockMask<3)  in unixShmLock()
43897        && (ofst<3  || lockMask<(1<<ofst))  in unixShmLock()
43936     for(iMutex=ofst; iMutex<ofst+n; iMutex++){  in unixShmLock()
43962           assert( aLock[ofst]>=1 );  in unixShmLock()
43963           if( aLock[ofst]>1 ){  in unixShmLock()
43965             aLock[ofst]--;  in unixShmLock()
43971           rc = unixShmSystemLock(pDbFd, F_UNLCK, ofst+UNIX_SHM_BASE, n);  in unixShmLock()
43973             memset(&aLock[ofst], 0, sizeof(int)*n);  in unixShmLock()
43981         if( aLock[ofst]<0 ){  in unixShmLock()
43984         }else if( aLock[ofst]==0 ){  in unixShmLock()
43985           rc = unixShmSystemLock(pDbFd, F_RDLCK, ofst+UNIX_SHM_BASE, n);  in unixShmLock()
43991           aLock[ofst]++;  in unixShmLock()
44003         for(ii=ofst; ii<ofst+n; ii++){  in unixShmLock()
44013           rc = unixShmSystemLock(pDbFd, F_WRLCK, ofst+UNIX_SHM_BASE, n);  in unixShmLock()
44016             for(ii=ofst; ii<ofst+n; ii++){  in unixShmLock()
44028     for(iMutex--; iMutex>=ofst; iMutex--){  in unixShmLock()
51645   int ofst,                  /* First lock to acquire or release */
51653   u16 mask = (u16)((1U<<(ofst+n)) - (1U<<ofst)); /* Mask of locks to [un]take */
51659   assert( ofst>=0 && ofst+n<=SQLITE_SHM_NLOCK );
51683           (ofst!=2 || lockMask==0)
51684        && (ofst!=1 || lockMask==0 || lockMask==2)
51685        && (ofst!=0 || lockMask<3)
51686        && (ofst<3  || lockMask<(1<<ofst))
51714       rc = winHandleUnlock(p->hShm, ofst+WIN_SHM_BASE, n);
51724       rc = winHandleLockTimeout(p->hShm, ofst+WIN_SHM_BASE, n, bExcl, nMs);
51738       ofst, n, flags,
60476     i64 ofst = (pgno-1)*(i64)pPager->pageSize;  local
60486     rc = sqlite3OsWrite(pPager->fd, (u8 *)aData, pPager->pageSize, ofst);
221883     unsigned int cnt, ofst;
221888         ofst = rbuDeltaGetInt(&zDelta, &lenDelta);
221899         if( (int)(ofst+cnt) > lenSrc ){
221903         memcpy(zOut, &zSrc[ofst], cnt);
226222 static int rbuVfsShmLock(sqlite3_file *pFile, int ofst, int n, int flags){
226240     if( ofst==WAL_LOCK_CKPT && n==1 ) rc = SQLITE_BUSY;
226247       rc = p->pReal->pMethods->xShmLock(p->pReal, ofst, n, flags);
226249         pRbu->mLock |= ((1<<n) - 1) << ofst;