Quentin Smith
28 lines
524 B
C
28 lines
524 B
C
/* ISC license. */
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/* MT-unsafe */
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#include <errno.h>
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#include <signal.h>
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#include "sysdeps.h"
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#include "selfpipe-internal.h"
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#include "selfpipe.h"
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#ifdef HASSIGNALFD
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# include <sys/signalfd.h>
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#else
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# include "djbunix.h"
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#endif
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int selfpipe_init (void)
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{
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if (selfpipe_fd >= 0) return (errno = EBUSY, -1) ;
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sigemptyset(&selfpipe_caught) ;
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#ifdef HASSIGNALFD
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selfpipe_fd = signalfd(-1, &selfpipe_caught, SFD_NONBLOCK | SFD_CLOEXEC) ;
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#else
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if (pipenbcoe(selfpipe) < 0) return -1 ;
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#endif
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return selfpipe_fd ;
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}
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