Attachment 169715 Details for Bug 196844 – Remove EV_ONESHOT

Remove EV_ONESHOT

kqueue_example.c (text/x-csrc), 1.23 KB, created by Konstantin Belousov on 2016-04-26 12:27:38 UTC

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Creator: Konstantin Belousov

Created: 2016-04-26 12:27:38 UTC

Size: 1.23 KB

patch

obsolete

>/* $Id: kqueue_example.c,v 1.5 2016/04/26 12:23:53 kostik Exp kostik $ */
>#include <sys/types.h>
>#include <sys/event.h>
>#include <sys/time.h>
>#include <err.h>
>#include <fcntl.h>
>#include <stdio.h>
>#include <stdlib.h>
>#include <string.h>
>#include <unistd.h>
>
>int
>main(int argc, char **argv)
>{
>	struct kevent event;	/* Event we want to monitor */
>	struct kevent tevent;	/* Event triggered */
>	int kq, fd, ret;
>
>	if (argc != 2)
>		err(EXIT_FAILURE, "Usage: %s path\en", argv[0]);
>	fd = open(argv[1], O_RDONLY);
>	if (fd == -1)
>		err(EXIT_FAILURE, "Failed to open '%s'", argv[1]);
>
>	/* Create kqueue. */
>	kq = kqueue();
>	if (kq == -1)
>		err(EXIT_FAILURE, "kqueue() failed");
>
>	/* Initialize kevent structure. */
>	EV_SET(&event, fd, EVFILT_VNODE, EV_ADD | EV_CLEAR, NOTE_WRITE,
>	    0, NULL);
>	/* Attach event to the kqueue. */
>	ret = kevent(kq, &event, 1, NULL, 0, NULL);
>	if (ret == -1)
>		err(EXIT_FAILURE, "kevent register");
>	if (event.flags & EV_ERROR)
>		errx(EXIT_FAILURE, "Event error: %s", strerror(event.data));
>
>	for (;;) {
>		/* Sleep until something happens. */
>		ret = kevent(kq, NULL, 0, &tevent, 1, NULL);
>		if (ret == -1) {
>			err(EXIT_FAILURE, "kevent wait");
>		} else if (ret > 0) {
>			printf("Something was written in '%s'\n", argv[1]);
>		}
>	}
>}

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Attachments on bug 196844: 151802 | 169639 | 169715 | 233152 | 233158