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| author |  Sebastian Andrzej Siewior <sebastian@breakpoint.cc> | 2014-01-19 05:24:58 (JST) |
|---|---|---|
| committer |  Jason A. Donenfeld <Jason@zx2c4.com> | 2014-01-19 23:08:49 (JST) |
| commit | d3581b58890389794de5d5222c91a0129873e95c (patch) | |
| tree | 95c4010b61869934cca86c5ac23056463754f2ee /Makefile | |
| parent | ea7210bef377be4ffb088a1a8e5a9dd354f82afb (diff) | |
| download | cgit-d3581b58890389794de5d5222c91a0129873e95c.zip cgit-d3581b58890389794de5d5222c91a0129873e95c.tar.gz | |
cache: use sendfile() instead of a pair of read() + write()
sendfile() does the same job and avoids to copy the content into userland
and back. One has to define NO_SENDFILE in case the OS (kernel / libc)
does not supported. It is disabled by default on non-linux environemnts.
According to the glibc, sendfile64() was added in Linux 2.4 (so it has
been there for a while) but after browsing over the mapage of FreeBSD's I
noticed that the prototype is little different.
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
| @@ -29,6 +29,7 @@ DOC_PDF = $(patsubst %.txt,%.pdf,$(MAN_TXT)) | |||
| 29 | # j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t). | 29 | # j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t). |
| 30 | # some C compilers supported these specifiers prior to C99 as an extension. | 30 | # some C compilers supported these specifiers prior to C99 as an extension. |
| 31 | # | 31 | # |
| 32 | # Define HAVE_LINUX_SENDFILE to use sendfile() | ||
| 32 | 33 | ||
| 33 | #-include config.mak | 34 | #-include config.mak |
| 34 | 35 | ||