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| author | Sebastian Andrzej Siewior <sebastian@breakpoint.cc> | 2014-01-18 21:24:58 +0100 |
|---|---|---|
| committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2014-01-19 15:08:49 +0100 |
| commit | d3581b58890389794de5d5222c91a0129873e95c (patch) | |
| tree | 95c4010b61869934cca86c5ac23056463754f2ee /Makefile | |
| parent | ea7210bef377be4ffb088a1a8e5a9dd354f82afb (diff) | |
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
diff --git a/Makefile b/Makefile index 2dc92df..05b97d7 100644 --- a/Makefile +++ b/Makefile @@ -29,6 +29,7 @@ DOC_PDF = $(patsubst %.txt,%.pdf,$(MAN_TXT)) # j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t). # some C compilers supported these specifiers prior to C99 as an extension. # +# Define HAVE_LINUX_SENDFILE to use sendfile() #-include config.mak |