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| author | jilles <jilles@FreeBSD.org> | 2014-01-14 22:05:33 +0000 |
|---|---|---|
| committer | jilles <jilles@FreeBSD.org> | 2014-01-14 22:05:33 +0000 |
| commit | b8a27f5deec1c45541670c76d9792d523e1f321d (patch) | |
| tree | 83b3c88ff66f10f23baf3d2e98383b8c767940f5 /lib/libc | |
| parent | f63cb2f402153eb98e1cd773f6207b1cf5d05cc2 (diff) | |
| download | FreeBSD-src-b8a27f5deec1c45541670c76d9792d523e1f321d.zip FreeBSD-src-b8a27f5deec1c45541670c76d9792d523e1f321d.tar.gz | |
libc/resolv: Use poll() instead of kqueue().
The resolver in libc creates a kqueue for watching a single file descriptor.
This can be done using poll() which should be lighter on the kernel and
reduce possible problems with rlimits (file descriptors, kqueues).
Reviewed by: jhb
Diffstat (limited to 'lib/libc')
| -rw-r--r-- | lib/libc/include/port_before.h | 2 | ||||
| -rw-r--r-- | lib/libc/resolv/res_send.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/lib/libc/include/port_before.h b/lib/libc/include/port_before.h index 304dd66..9e7525b 100644 --- a/lib/libc/include/port_before.h +++ b/lib/libc/include/port_before.h @@ -5,7 +5,7 @@ #define _LIBC 1 #define DO_PTHREADS 1 -#define USE_KQUEUE 1 +#define USE_POLL 1 #define ISC_SOCKLEN_T socklen_t #define ISC_FORMAT_PRINTF(fmt, args) \ diff --git a/lib/libc/resolv/res_send.c b/lib/libc/resolv/res_send.c index 4896fe8..f7c38c5 100644 --- a/lib/libc/resolv/res_send.c +++ b/lib/libc/resolv/res_send.c @@ -77,7 +77,7 @@ __FBSDID("$FreeBSD$"); */ #include "port_before.h" -#ifndef USE_KQUEUE +#if !defined(USE_KQUEUE) && !defined(USE_POLL) #include "fd_setsize.h" #endif @@ -963,7 +963,7 @@ send_dg(res_state statp, timeout.tv_nsec/1000000; pollfd.fd = s; pollfd.events = POLLRDNORM; - n = poll(&pollfd, 1, polltimeout); + n = _poll(&pollfd, 1, polltimeout); #endif /* USE_POLL */ if (n == 0) { |
