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Avoid redundant syscall if making a socket cloexec twice

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I got the idea from Maxime's last patch.
This commit is contained in:
Nick Mathewson 2013-05-20 12:30:40 -04:00
parent 42c03da9b9
commit 1f29b18f51
1 changed files with 5 additions and 3 deletions
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8
evutil.c
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@ -390,9 +390,11 @@ evutil_make_socket_closeonexec(evutil_socket_t fd)
event_warn("fcntl(%d, F_GETFD)", fd);
return -1;
}
if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1) {
event_warn("fcntl(%d, F_SETFD)", fd);
return -1;
if (!(flags & FD_CLOEXEC)) {
if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1) {
event_warn("fcntl(%d, F_SETFD)", fd);
return -1;
}
}
#endif
return 0;