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Overview
Comment: | Simplification to the posix_fallocate() replacement used for the SQLITE_FCNTL_SIZE_HINT file control in the unix VFS. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
74934d3f60ad9f6550297410eada0f28 |
User & Date: | drh 2015-12-01 22:09:42.967 |
Context
2015-12-02
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00:05 | Remove all traces of SQLITE_FCNTL_WAL_BLOCK from the unix VFS - that feature had been disabled for a long time and never actually worked. (check-in: e1d5320ca0 user: drh tags: trunk) | |
2015-12-01
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22:09 | Simplification to the posix_fallocate() replacement used for the SQLITE_FCNTL_SIZE_HINT file control in the unix VFS. (check-in: 74934d3f60 user: drh tags: trunk) | |
21:23 | Add the SQLITE_LIKE_DOESNT_MATCH_BLOBS compile-time option. (check-in: 9e1d6d4c39 user: drh tags: trunk) | |
Changes
Changes to src/os_unix.c.
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3658 3659 3660 3661 3662 3663 3664 | ** This is a similar technique to that used by glibc on systems ** that do not have a real fallocate() call. */ int nBlk = buf.st_blksize; /* File-system block size */ int nWrite = 0; /* Number of bytes written by seekAndWrite */ i64 iWrite; /* Next offset to write to */ | | < | > < < < < | 3658 3659 3660 3661 3662 3663 3664 3665 3666 3667 3668 3669 3670 3671 3672 3673 3674 3675 3676 3677 3678 3679 | ** This is a similar technique to that used by glibc on systems ** that do not have a real fallocate() call. */ int nBlk = buf.st_blksize; /* File-system block size */ int nWrite = 0; /* Number of bytes written by seekAndWrite */ i64 iWrite; /* Next offset to write to */ iWrite = (buf.st_size/nBlk)*nBlk + nBlk - 1; assert( iWrite>=buf.st_size ); assert( ((iWrite+1)%nBlk)==0 ); for(/*no-op*/; iWrite<nSize+nBlk-1; iWrite+=nBlk ){ if( iWrite>=nSize ) iWrite = nSize - 1; nWrite = seekAndWrite(pFile, iWrite, "", 1); if( nWrite!=1 ) return SQLITE_IOERR_WRITE; } #endif } } #if SQLITE_MAX_MMAP_SIZE>0 if( pFile->mmapSizeMax>0 && nByte>pFile->mmapSize ){ int rc; |
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