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WORKAROUND: signalfd(2) flags are broken on kernels older than Linux 2.6.27
git-svn-id: svn://svn.code.sf.net/p/libkqueue/code/trunk@458 fb4e3144-bc1c-4b72-a658-5bcd248dd7f7
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@ -55,13 +55,19 @@ signalfd_add(int epfd, int sigfd, void *ptr)
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static int
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signalfd_create(int epfd, void *ptr, int signum)
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{
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static int flags = SFD_NONBLOCK;
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sigset_t sigmask;
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int sigfd;
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/* Create a signalfd */
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sigemptyset(&sigmask);
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sigaddset(&sigmask, signum);
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sigfd = signalfd(-1, &sigmask, SFD_NONBLOCK);
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sigfd = signalfd(-1, &sigmask, flags);
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/* WORKAROUND: Flags are broken on kernels older than Linux 2.6.27 */
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if (sigfd < 0 && errno == EINVAL && flags != 0) {
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flags = 0;
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sigfd = signalfd(-1, &sigmask, flags);
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}
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if (sigfd < 0) {
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dbg_perror("signalfd(2)");
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goto errout;
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