1333         i64 iOffset = walFrameOffset(iFrame, szPage);  in walIndexRecover()  local
1338         rc = sqlite3OsRead(pWal->pWalFd, aFrame, szFrame, iOffset);  in walIndexRecover()
2129         i64 iOffset;  in walCheckpoint()  local
2138         iOffset = walFrameOffset(iFrame, szPage) + WAL_FRAME_HDRSIZE;  in walCheckpoint()
2140         rc = sqlite3OsRead(pWal->pWalFd, zBuf, szPage, iOffset);  in walCheckpoint()
2142         iOffset = (iDbpage-1)*(i64)szPage;  in walCheckpoint()
2143         testcase( IS_BIG_INT(iOffset) );  in walCheckpoint()
2144         rc = sqlite3OsWrite(pWal->pDbFd, zBuf, szPage, iOffset);  in walCheckpoint()
2515   i64 iOffset;                    /* Current offset when reading wal file */  in walBeginShmUnreliable()  local
2622   for(iOffset=walFrameOffset(pWal->hdr.mxFrame+1, pWal->szPage);   in walBeginShmUnreliable()
2623       iOffset+szFrame<=szWal;   in walBeginShmUnreliable()
2624       iOffset+=szFrame  in walBeginShmUnreliable()
2630     rc = sqlite3OsRead(pWal->pWalFd, aFrame, szFrame, iOffset);  in walBeginShmUnreliable()
3246   i64 iOffset;  in sqlite3WalReadFrame()  local
3251   iOffset = walFrameOffset(iRead, sz) + WAL_FRAME_HDRSIZE;  in sqlite3WalReadFrame()
3253   return sqlite3OsRead(pWal->pWalFd, pOut, (nOut>sz ? sz : nOut), iOffset);  in sqlite3WalReadFrame()
3508   sqlite3_int64 iOffset      /* Start writing at this offset */  in walWriteToLog()  argument
3511   if( iOffset<p->iSyncPoint && iOffset+iAmt>=p->iSyncPoint ){  in walWriteToLog()
3512     int iFirstAmt = (int)(p->iSyncPoint - iOffset);  in walWriteToLog()
3513     rc = sqlite3OsWrite(p->pFd, pContent, iFirstAmt, iOffset);  in walWriteToLog()
3515     iOffset += iFirstAmt;  in walWriteToLog()
3522   rc = sqlite3OsWrite(p->pFd, pContent, iAmt, iOffset);  in walWriteToLog()
3533   sqlite3_int64 iOffset       /* Byte offset at which to write */  in walWriteOneFrame()  argument
3540   rc = walWriteToLog(p, aFrame, sizeof(aFrame), iOffset);  in walWriteOneFrame()
3543   rc = walWriteToLog(p, pData, p->szPage, iOffset+sizeof(aFrame));  in walWriteOneFrame()
3618   i64 iOffset;                    /* Next byte to write in WAL file */  in sqlite3WalFrames()  local
3700   iOffset = walFrameOffset(iFrame+1, szPage);  in sqlite3WalFrames()
3730     assert( iOffset==walFrameOffset(iFrame, szPage) );  in sqlite3WalFrames()
3732     rc = walWriteOneFrame(&w, p, nDbSize, iOffset);  in sqlite3WalFrames()
3735     iOffset += szFrame;  in sqlite3WalFrames()
3763       w.iSyncPoint = ((iOffset+sectorSize-1)/sectorSize)*sectorSize;  in sqlite3WalFrames()
3764       bSync = (w.iSyncPoint==iOffset);  in sqlite3WalFrames()
3766       while( iOffset<w.iSyncPoint ){  in sqlite3WalFrames()
3767         rc = walWriteOneFrame(&w, pLast, nTruncate, iOffset);  in sqlite3WalFrames()
3769         iOffset += szFrame;  in sqlite3WalFrames()