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| author | Lasse Collin <lasse.collin@tukaani.org> | 2011-04-05 15:27:26 +0300 |
|---|---|---|
| committer | Lasse Collin <lasse.collin@tukaani.org> | 2011-04-05 15:27:26 +0300 |
| commit | 1039bfcfc098b69d56ecb39d198a092552eacf6d (patch) | |
| tree | fe82bb00cf81625f215497d5f2732fa10377f764 /src | |
| parent | xz: Call lzma_end(&strm) before exiting if debugging is enabled. (diff) | |
| download | xz-1039bfcfc098b69d56ecb39d198a092552eacf6d.tar.xz | |
xz: Use posix_fadvise() if it is available.
Diffstat (limited to 'src')
| -rw-r--r-- | src/xz/file_io.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/xz/file_io.c b/src/xz/file_io.c index 09edcca6..56acf3bd 100644 --- a/src/xz/file_io.c +++ b/src/xz/file_io.c @@ -294,6 +294,10 @@ io_open_src_real(file_pair *pair) #ifdef TUKLIB_DOSLIKE setmode(STDIN_FILENO, O_BINARY); #endif +#ifdef HAVE_POSIX_FADVISE + // It will fail if stdin is a pipe and that's fine. + (void)posix_fadvise(STDIN_FILENO, 0, 0, POSIX_FADV_SEQUENTIAL); +#endif return false; } @@ -497,6 +501,17 @@ io_open_src_real(file_pair *pair) } #endif +#ifdef HAVE_POSIX_FADVISE + const int fadvise_ret = posix_fadvise( + pair->src_fd, 0, 0, POSIX_FADV_SEQUENTIAL); + + // It shouldn't fail, but if it does anyway, it doesn't matter. + // Check it with an assertion so that if something gets messed + // up in the future, it will get caught when debugging is enabled. + assert(fadvise_ret == 0); + (void)fadvise_ret; +#endif + return false; error_msg: |