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Overview
| Comment: | Remove an unreachable branch from the unixMapfile() routine of the unix VFS. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | b50f67bc46e65fe4e51667d48b4add58 |
| User & Date: | drh 2015-12-02 15:44:39 |
Context
|
2015-12-02
| ||
| 16:10 | Remove more (dead) SQLITE_FCNTL_WAL_BLOCK logic from wal.c - code that was missed during the [e1d5320ca08933] check-in. check-in: 58c15c6a user: drh tags: trunk | |
| 15:44 | Remove an unreachable branch from the unixMapfile() routine of the unix VFS. check-in: b50f67bc user: drh tags: trunk | |
| 13:11 | Minor simplifications to the unix VFS. check-in: 2f13c16b user: drh tags: trunk | |
Changes
Changes to src/os_unix.c.
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**
** SQLITE_OK is returned if no error occurs (even if the mapping is not
** recreated as a result of outstanding references) or an SQLite error
** code otherwise.
*/
static int unixMapfile(unixFile *pFd, i64 nMap){
assert( nMap>=0 || pFd->nFetchOut==0 );
if( pFd->nFetchOut>0 ) return SQLITE_OK;
if( nMap<0 ){
struct stat statbuf; /* Low-level file information */
if( osFstat(pFd->h, &statbuf) ){
return SQLITE_IOERR_FSTAT;
}
nMap = statbuf.st_size;
}
if( nMap>pFd->mmapSizeMax ){
nMap = pFd->mmapSizeMax;
}
if( nMap!=pFd->mmapSize ){
if( nMap>0 ){
unixRemapfile(pFd, nMap);
}else{
unixUnmapfile(pFd);
}
}
return SQLITE_OK;
}
#endif /* SQLITE_MAX_MMAP_SIZE>0 */
/*
|
> > < | < < < |
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**
** SQLITE_OK is returned if no error occurs (even if the mapping is not
** recreated as a result of outstanding references) or an SQLite error
** code otherwise.
*/
static int unixMapfile(unixFile *pFd, i64 nMap){
assert( nMap>=0 || pFd->nFetchOut==0 );
assert( nMap>0 || (pFd->mmapSize==0 && pFd->pMapRegion==0) );
if( pFd->nFetchOut>0 ) return SQLITE_OK;
if( nMap<0 ){
struct stat statbuf; /* Low-level file information */
if( osFstat(pFd->h, &statbuf) ){
return SQLITE_IOERR_FSTAT;
}
nMap = statbuf.st_size;
}
if( nMap>pFd->mmapSizeMax ){
nMap = pFd->mmapSizeMax;
}
assert( nMap>0 || (pFd->mmapSize==0 && pFd->pMapRegion==0) );
if( nMap!=pFd->mmapSize ){
unixRemapfile(pFd, nMap);
}
return SQLITE_OK;
}
#endif /* SQLITE_MAX_MMAP_SIZE>0 */
/*
|