C++ (Cpp) evsig_initの例

コード例 #1

ファイル: devpoll.c プロジェクト: GunioRobot/transmission

static void *
devpoll_init(struct event_base *base)
{
	int dpfd, nfiles = NEVENT;
	struct rlimit rl;
	struct devpollop *devpollop;

	if (!(devpollop = mm_calloc(1, sizeof(struct devpollop))))
		return (NULL);

	if (getrlimit(RLIMIT_NOFILE, &rl) == 0 &&
	    rl.rlim_cur != RLIM_INFINITY)
		nfiles = rl.rlim_cur;

	/* Initialize the kernel queue */
	if ((dpfd = open("/dev/poll", O_RDWR)) == -1) {
		event_warn("open: /dev/poll");
		mm_free(devpollop);
		return (NULL);
	}

	devpollop->dpfd = dpfd;

	/* Initialize fields */
	/* FIXME: allocating 'nfiles' worth of space here can be
	 * expensive and unnecessary.  See how epoll.c does it instead. */
	devpollop->events = mm_calloc(nfiles, sizeof(struct pollfd));
	if (devpollop->events == NULL) {
		mm_free(devpollop);
		close(dpfd);
		return (NULL);
	}
	devpollop->nevents = nfiles;

	devpollop->changes = mm_calloc(nfiles, sizeof(struct pollfd));
	if (devpollop->changes == NULL) {
		mm_free(devpollop->events);
		mm_free(devpollop);
		close(dpfd);
		return (NULL);
	}

	evsig_init(base);

	return (devpollop);
}

コード例 #2

ファイル: select.c プロジェクト: Adios/Libevent

static void *
select_init(struct event_base *base)
{
	struct selectop *sop;

	if (!(sop = mm_calloc(1, sizeof(struct selectop))))
		return (NULL);

	if (select_resize(sop, howmany(32 + 1, NFDBITS)*sizeof(fd_mask))) {
		select_free_selectop(sop);
		return (NULL);
	}

	evsig_init(base);

	return (sop);
}

コード例 #3

ファイル: select.c プロジェクト: betting/snakeos

static void *
select_init(struct event_base *base)
{
	struct selectop *sop;

	if (!(sop = mm_calloc(1, sizeof(struct selectop))))
		return (NULL);

	if (select_resize(sop, SELECT_ALLOC_SIZE(32 + 1))) {
		select_free_selectop(sop);
		return (NULL);
	}

	evsig_init(base);

	return (sop);
}

コード例 #4

ファイル: devpoll.c プロジェクト: Brainiarc7/ralink_sdk

static void *
devpoll_init(struct event_base *base)
{
	int dpfd, nfiles = NEVENT;
	struct rlimit rl;
	struct devpollop *devpollop;

	if (!(devpollop = mm_calloc(1, sizeof(struct devpollop))))
		return (NULL);

	if (getrlimit(RLIMIT_NOFILE, &rl) == 0 &&
	    rl.rlim_cur != RLIM_INFINITY)
		nfiles = rl.rlim_cur;

	/* Initialize the kernel queue */
	if ((dpfd = open("/dev/poll", O_RDWR)) == -1) {
                event_warn("open: /dev/poll");
		mm_free(devpollop);
		return (NULL);
	}

	devpollop->dpfd = dpfd;

	/* Initialize fields */
	devpollop->events = mm_calloc(nfiles, sizeof(struct pollfd));
	if (devpollop->events == NULL) {
		mm_free(devpollop);
		close(dpfd);
		return (NULL);
	}
	devpollop->nevents = nfiles;

	devpollop->changes = mm_calloc(nfiles, sizeof(struct pollfd));
	if (devpollop->changes == NULL) {
		mm_free(devpollop->events);
		mm_free(devpollop);
		close(dpfd);
		return (NULL);
	}

	evsig_init(base);

	return (devpollop);
}

コード例 #5

ファイル: epoll.c プロジェクト: drvid/iSoul

static void *
epoll_init(struct event_base *base)
{
	int epfd;
	struct epollop *epollop;

	/* Initialize the kernel queue.  (The size field is ignored since
	 * 2.6.8.) */
	if ((epfd = epoll_create(32000)) == -1) {
		if (errno != ENOSYS)
			event_warn("epoll_create");
		return (NULL);
	}

	evutil_make_socket_closeonexec(epfd);

	if (!(epollop = mm_calloc(1, sizeof(struct epollop)))) {
		close(epfd);
		return (NULL);
	}

	epollop->epfd = epfd;

	/* Initialize fields */
	epollop->events = mm_calloc(INITIAL_NEVENT, sizeof(struct epoll_event));
	if (epollop->events == NULL) {
		mm_free(epollop);
		close(epfd);
		return (NULL);
	}
	epollop->nevents = INITIAL_NEVENT;

	if ((base->flags & EVENT_BASE_FLAG_EPOLL_USE_CHANGELIST) != 0 ||
	    ((base->flags & EVENT_BASE_FLAG_IGNORE_ENV) == 0 &&
		evutil_getenv("EVENT_EPOLL_USE_CHANGELIST") != NULL))
		base->evsel = &epollops_changelist;

	evsig_init(base);

	return (epollop);
}

コード例 #6

ファイル: win32select.c プロジェクト: jocelyn/EiffelStudio

void *
win32_init(struct event_base *_base)
{
	struct win32op *winop;
	size_t size;
	if (!(winop = mm_calloc(1, sizeof(struct win32op))))
		return NULL;
	winop->fd_setsz = NEVENT;
	size = FD_SET_ALLOC_SIZE(NEVENT);
	if (!(winop->readset_in = mm_malloc(size)))
		goto err;
	if (!(winop->writeset_in = mm_malloc(size)))
		goto err;
	if (!(winop->readset_out = mm_malloc(size)))
		goto err;
	if (!(winop->writeset_out = mm_malloc(size)))
		goto err;
	if (!(winop->exset_out = mm_malloc(size)))
		goto err;
	winop->readset_in->fd_count = winop->writeset_in->fd_count = 0;
	winop->readset_out->fd_count = winop->writeset_out->fd_count
		= winop->exset_out->fd_count = 0;

	if (evsig_init(_base) < 0)
		winop->signals_are_broken = 1;

	return (winop);
 err:
        XFREE(winop->readset_in);
        XFREE(winop->writeset_in);
        XFREE(winop->readset_out);
        XFREE(winop->writeset_out);
        XFREE(winop->exset_out);
        XFREE(winop);
        return (NULL);
}