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| author | Tuncer Ayaz <[email protected]> | 2011-01-13 12:36:14 +0100 |
|---|---|---|
| committer | Lukas Larsson <[email protected]> | 2011-11-29 14:30:35 +0100 |
| commit | 195e1f19b06095f39a4fb0da46dfab2ec5b10e9a (patch) | |
| tree | 8f4a8c587b72c3a20d18b4cb6ccd7d1d52eb6286 /erts/configure.in | |
| parent | 7292c3d9f5285592aa4de996f6f106cd365d7895 (diff) | |
| download | otp-195e1f19b06095f39a4fb0da46dfab2ec5b10e9a.tar.gz otp-195e1f19b06095f39a4fb0da46dfab2ec5b10e9a.tar.bz2 otp-195e1f19b06095f39a4fb0da46dfab2ec5b10e9a.zip | |
Implement file:sendfile
Allow Erlang code to use sendfile() where available by wrapping it as
file:sendfile/4 and file:sendfile/2.
sendfile(2) - Linux man page:
"sendfile() copies data between one file descriptor and another.
Because this copying is done within the kernel, sendfile() is more
efficient than the combination of read(2) and write(2), which would
require transferring data to and from user space."
Diffstat (limited to 'erts/configure.in')
| -rw-r--r-- | erts/configure.in | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/erts/configure.in b/erts/configure.in index e3eb6034e6..548e4cc9d5 100644 --- a/erts/configure.in +++ b/erts/configure.in @@ -1690,6 +1690,22 @@ dnl fdatasync requires linking against -lrt on SunOS <= 5.10. dnl OpenSolaris 2009.06 is SunOS 5.11 and does not require -lrt. AC_SEARCH_LIBS(fdatasync, [rt]) + +dnl sendfile syscall +case $host_os in + linux*|freebsd*|dragonfly*|darwin*) + AC_CHECK_FUNCS([sendfile]) + ;; + solaris*) + AC_SEARCH_LIBS(sendfile, sendfile, AC_DEFINE(HAVE_SENDFILE, 1)) + ;; + win32) + LIBS="$LIBS -lmswsock" + ;; + *) + ;; +esac + dnl ---------------------------------------------------------------------- dnl Checks for library functions. dnl ---------------------------------------------------------------------- |