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authorGravatar Sebastian Andrzej Siewior <sebastian@breakpoint.cc>2014-01-19 05:24:58 (JST)
committerGravatar Jason A. Donenfeld <Jason@zx2c4.com>2014-01-19 23:08:49 (JST)
commitd3581b58890389794de5d5222c91a0129873e95c (patch)
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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>
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