Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
Comment: | Minor simplifications to the unix VFS. |
---|---|
Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
2f13c16b45685ec6850cbd9da79e8198 |
User & Date: | drh 2015-12-02 13:11:03.174 |
Context
2015-12-02
| ||
15:44 | Remove an unreachable branch from the unixMapfile() routine of the unix VFS. (check-in: b50f67bc46 user: drh tags: trunk) | |
13:11 | Minor simplifications to the unix VFS. (check-in: 2f13c16b45 user: drh tags: trunk) | |
02:33 | Change the SQLITE_NO_SYNC compile-time option to call fstat() in place of fsync() rather than being a total no-op. (check-in: f64ea8a052 user: drh tags: trunk) | |
Changes
Changes to src/os_unix.c.
︙ | ︙ | |||
4119 4120 4121 4122 4123 4124 4125 | ** ** This is not a VFS shared-memory method; it is a utility function called ** by VFS shared-memory methods. */ static void unixShmPurge(unixFile *pFd){ unixShmNode *p = pFd->pInode->pShmNode; assert( unixMutexHeld() ); | | | 4119 4120 4121 4122 4123 4124 4125 4126 4127 4128 4129 4130 4131 4132 4133 | ** ** This is not a VFS shared-memory method; it is a utility function called ** by VFS shared-memory methods. */ static void unixShmPurge(unixFile *pFd){ unixShmNode *p = pFd->pInode->pShmNode; assert( unixMutexHeld() ); if( p && ALWAYS(p->nRef==0) ){ int nShmPerMap = unixShmRegionPerMap(); int i; assert( p->pInode==pFd->pInode ); sqlite3_mutex_free(p->mutex); for(i=0; i<p->nRegion; i+=nShmPerMap){ if( p->h>=0 ){ osMunmap(p->apRegion[i], p->szRegion); |
︙ | ︙ | |||
4206 4207 4208 4209 4210 4211 4212 | const char *zBasePath = pDbFd->zPath; #endif /* Call fstat() to figure out the permissions on the database file. If ** a new *-shm file is created, an attempt will be made to create it ** with the same permissions. */ | | | 4206 4207 4208 4209 4210 4211 4212 4213 4214 4215 4216 4217 4218 4219 4220 | const char *zBasePath = pDbFd->zPath; #endif /* Call fstat() to figure out the permissions on the database file. If ** a new *-shm file is created, an attempt will be made to create it ** with the same permissions. */ if( osFstat(pDbFd->h, &sStat) ){ rc = SQLITE_IOERR_FSTAT; goto shm_open_err; } #ifdef SQLITE_SHM_DIRECTORY nShmFilename = sizeof(SQLITE_SHM_DIRECTORY) + 31; #else |
︙ | ︙ | |||
4762 4763 4764 4765 4766 4767 4768 | ** created mapping is either the requested size or the value configured ** using SQLITE_FCNTL_MMAP_LIMIT, whichever is smaller. ** ** 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. */ | | < < < | < | 4762 4763 4764 4765 4766 4767 4768 4769 4770 4771 4772 4773 4774 4775 4776 4777 4778 4779 4780 4781 4782 | ** created mapping is either the requested size or the value configured ** using SQLITE_FCNTL_MMAP_LIMIT, whichever is smaller. ** ** 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; } |
︙ | ︙ |