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https://github.com/libevent/libevent.git
synced 2025-01-09 00:56:20 +08:00
52 lines
956 B
CMake
52 lines
956 B
CMake
include(CheckCSourceRuns)
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check_c_source_runs(
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"
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/event.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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int
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main(int argc, char **argv)
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{
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int kq;
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int n;
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int fd[2];
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struct kevent ev;
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struct timespec ts;
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char buf[8000];
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if (pipe(fd) == -1)
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exit(1);
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if (fcntl(fd[1], F_SETFL, O_NONBLOCK) == -1)
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exit(1);
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while ((n = write(fd[1], buf, sizeof(buf))) == sizeof(buf))
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;
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if ((kq = kqueue()) == -1)
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exit(1);
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memset(&ev, 0, sizeof(ev));
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ev.ident = fd[1];
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ev.filter = EVFILT_WRITE;
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ev.flags = EV_ADD | EV_ENABLE;
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n = kevent(kq, &ev, 1, NULL, 0, NULL);
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if (n == -1)
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exit(1);
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read(fd[0], buf, sizeof(buf));
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ts.tv_sec = 0;
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ts.tv_nsec = 0;
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n = kevent(kq, NULL, 0, &ev, 1, &ts);
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if (n == -1 || n == 0)
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exit(1);
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exit(0);
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}
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" EVENT__HAVE_WORKING_KQUEUE) |