2076 static int unixMapfile(unixFile *pFd, i64 nByte);
2077 static void unixUnmapfile(unixFile *pFd);
3698 static int openDirectory(const char *zFilename, int *pFd){  in openDirectory()  argument
3715   *pFd = fd;  in openDirectory()
4096 static void setDeviceCharacteristics(unixFile *pFd){  in setDeviceCharacteristics()  argument
4097   assert( pFd->deviceCharacteristics==0 || pFd->sectorSize!=0 );  in setDeviceCharacteristics()
4098   if( pFd->sectorSize==0 ){  in setDeviceCharacteristics()
4104     res = osIoctl(pFd->h, F2FS_IOC_GET_FEATURES, &f);  in setDeviceCharacteristics()
4106       pFd->deviceCharacteristics = SQLITE_IOCAP_BATCH_ATOMIC;  in setDeviceCharacteristics()
4111     if( pFd->ctrlFlags & UNIXFILE_PSOW ){  in setDeviceCharacteristics()
4112       pFd->deviceCharacteristics |= SQLITE_IOCAP_POWERSAFE_OVERWRITE;  in setDeviceCharacteristics()
4115     pFd->sectorSize = SQLITE_DEFAULT_SECTOR_SIZE;  in setDeviceCharacteristics()
4204   unixFile *pFd = (unixFile*)id;  in unixSectorSize()  local
4205   setDeviceCharacteristics(pFd);  in unixSectorSize()
4206   return pFd->sectorSize;  in unixSectorSize()
4223   unixFile *pFd = (unixFile*)id;  in unixDeviceCharacteristics()  local
4224   setDeviceCharacteristics(pFd);  in unixDeviceCharacteristics()
4225   return pFd->deviceCharacteristics;  in unixDeviceCharacteristics()
4466 static void unixShmPurge(unixFile *pFd){  in unixShmPurge()  argument
4467   unixShmNode *p = pFd->pInode->pShmNode;  in unixShmPurge()
4472     assert( p->pInode==pFd->pInode );  in unixShmPurge()
4483       robust_close(pFd, p->hShm, __LINE__);  in unixShmPurge()
5120 static void unixUnmapfile(unixFile *pFd){  in unixUnmapfile()  argument
5121   assert( pFd->nFetchOut==0 );  in unixUnmapfile()
5122   if( pFd->pMapRegion ){  in unixUnmapfile()
5123     osMunmap(pFd->pMapRegion, pFd->mmapSizeActual);  in unixUnmapfile()
5124     pFd->pMapRegion = 0;  in unixUnmapfile()
5125     pFd->mmapSize = 0;  in unixUnmapfile()
5126     pFd->mmapSizeActual = 0;  in unixUnmapfile()
5146   unixFile *pFd,                  /* File descriptor object */  in unixRemapfile()  argument
5150   int h = pFd->h;                      /* File descriptor open on db file */  in unixRemapfile()
5151   u8 *pOrig = (u8 *)pFd->pMapRegion;   /* Pointer to current file mapping */  in unixRemapfile()
5152   i64 nOrig = pFd->mmapSizeActual;     /* Size of pOrig region in bytes */  in unixRemapfile()
5156   assert( pFd->nFetchOut==0 );  in unixRemapfile()
5157   assert( nNew>pFd->mmapSize );  in unixRemapfile()
5158   assert( nNew<=pFd->mmapSizeMax );  in unixRemapfile()
5160   assert( pFd->mmapSizeActual>=pFd->mmapSize );  in unixRemapfile()
5164   if( (pFd->ctrlFlags & UNIXFILE_RDONLY)==0 ) flags |= PROT_WRITE;  in unixRemapfile()
5169     i64 nReuse = pFd->mmapSize;  in unixRemapfile()
5172     i64 nReuse = (pFd->mmapSize & ~(szSyspage-1));  in unixRemapfile()
5210     unixLogError(SQLITE_OK, zErr, pFd->zPath);  in unixRemapfile()
5215     pFd->mmapSizeMax = 0;  in unixRemapfile()
5217   pFd->pMapRegion = (void *)pNew;  in unixRemapfile()
5218   pFd->mmapSize = pFd->mmapSizeActual = nNew;  in unixRemapfile()
5237 static int unixMapfile(unixFile *pFd, i64 nMap){  in unixMapfile()  argument
5238   assert( nMap>=0 || pFd->nFetchOut==0 );  in unixMapfile()
5239   assert( nMap>0 || (pFd->mmapSize==0 && pFd->pMapRegion==0) );  in unixMapfile()
5240   if( pFd->nFetchOut>0 ) return SQLITE_OK;  in unixMapfile()
5244     if( osFstat(pFd->h, &statbuf) ){  in unixMapfile()
5249   if( nMap>pFd->mmapSizeMax ){  in unixMapfile()
5250     nMap = pFd->mmapSizeMax;  in unixMapfile()
5253   assert( nMap>0 || (pFd->mmapSize==0 && pFd->pMapRegion==0) );  in unixMapfile()
5254   if( nMap!=pFd->mmapSize ){  in unixMapfile()
5255     unixRemapfile(pFd, nMap);  in unixMapfile()
5276   unixFile *pFd = (unixFile *)fd;   /* The underlying database file */  in unixFetch()  local
5281   if( pFd->mmapSizeMax>0 ){  in unixFetch()
5282     if( pFd->pMapRegion==0 ){  in unixFetch()
5283       int rc = unixMapfile(pFd, -1);  in unixFetch()
5286     if( pFd->mmapSize >= iOff+nAmt ){  in unixFetch()
5287       *pp = &((u8 *)pFd->pMapRegion)[iOff];  in unixFetch()
5288       pFd->nFetchOut++;  in unixFetch()
5307   unixFile *pFd = (unixFile *)fd;   /* The underlying database file */  in unixUnfetch()  local
5313   assert( (p==0)==(pFd->nFetchOut==0) );  in unixUnfetch()
5316   assert( p==0 || p==&((u8 *)pFd->pMapRegion)[iOff] );  in unixUnfetch()
5319     pFd->nFetchOut--;  in unixUnfetch()
5321     unixUnmapfile(pFd);  in unixUnfetch()
5324   assert( pFd->nFetchOut>=0 );  in unixUnfetch()