C++ (Cpp) EVENT_REG_ADD_READ示例

示例#1

文件： events_kernel.c 项目： 10jschen/acl

static void enable_read(EVENT_KERNEL *ev, ACL_EVENT_FDTABLE *fdp)
{
	const char *myname = "enable_read";
	ACL_SOCKET sockfd = ACL_VSTREAM_SOCK(fdp->stream);
	int   err;

	fdp->flag &= ~EVENT_FDTABLE_FLAG_ADD_READ;
	fdp->flag |= EVENT_FDTABLE_FLAG_READ;

	if ((fdp->flag & EVENT_FDTABLE_FLAG_WRITE)) {
#if (ACL_EVENTS_KERNEL_STYLE == ACL_EVENTS_STYLE_KQUEUE)
		EVENT_REG_ADD_READ(err, ev->event_fd, sockfd, fdp);
#else
		EVENT_REG_MOD_RDWR(err, ev->event_fd, sockfd, fdp);
#endif
	} else {
		EVENT_REG_ADD_READ(err, ev->event_fd, sockfd, fdp);
	}
	if (err < 0) {
		acl_msg_fatal("%s: %s: %s, err(%d), fd(%d)",
			myname, EVENT_REG_ADD_TEXT,
			acl_last_serror(), err, sockfd);
	}
}

示例#2

文件： events_kernel_thr.c 项目： aaronshang/acl

static void event_enable_read(ACL_EVENT *eventp,
			ACL_VSTREAM *stream,
			int timeout,
			ACL_EVENT_NOTIFY_RDWR callback,
			void *context)
{
	const char *myname = "event_enable_read";
	EVENT_KERNEL_THR *event_thr = (EVENT_KERNEL_THR *) eventp;
	ACL_EVENT_FDTABLE *fdp;
	ACL_SOCKET sockfd;
	char  ebuf[256];
	int   err = 0;

	sockfd = ACL_VSTREAM_SOCK(stream);

	THREAD_LOCK(&event_thr->event.tb_mutex);

	/*
	* Disallow multiple requests on the same file descriptor.
	* Allow duplicates of the same request.
	*/

	fdp = stream->fdp;
	if (fdp == NULL)
		fdp = event_fdtable_alloc();
	if (fdp == NULL)
		acl_msg_fatal("%s(%d): alloc fdtable error", __FILE__, __LINE__);

	if (fdp->flag & EVENT_FDTABLE_FLAG_WRITE)
		acl_msg_panic("%s(%d)->%s: fd %d: multiple I/O request",
			__FILE__, __LINE__, myname, sockfd);

	if ((fdp->flag & EVENT_FDTABLE_FLAG_READ) == 0) {
		fdp->flag = EVENT_FDTABLE_FLAG_READ | EVENT_FDTABLE_FLAG_EXPT;
		stream->fdp = (void *) fdp;
		stream->nrefer++;
		fdp->stream = stream;
		fdp->listener = 0;
		fdp->fdidx = eventp->fdcnt;
		eventp->fdtabs[eventp->fdcnt] = fdp;
		eventp->fdcnt++;

		if (eventp->maxfd != ACL_SOCKET_INVALID && eventp->maxfd < sockfd)
			eventp->maxfd = sockfd;
#ifdef	USE_FDMAP
		acl_fdmap_add(event_thr->fdmap, sockfd, fdp);
#endif
		EVENT_REG_ADD_READ(err, event_thr->event_fd, sockfd, fdp);
		if (err < 0) {
			acl_msg_fatal("%s: %s: %s, err(%d), fd(%d)",
				myname, EVENT_REG_ADD_TEXT,
				acl_last_strerror(ebuf, sizeof(ebuf)), err, sockfd);
		}
	}

	if (fdp->r_callback != callback || fdp->r_context != context) {
		fdp->r_callback = callback;
		fdp->r_context = context;
	}

	if (timeout > 0) {
		fdp->r_timeout = timeout * 1000000;
		fdp->r_ttl = eventp->event_present + fdp->r_timeout;
	} else {
		fdp->r_ttl = 0;
		fdp->r_timeout = 0;
	}

	THREAD_UNLOCK(&event_thr->event.tb_mutex);

	/* 主要是为了减少通知次数 */
	if (event_thr->event.blocked && event_thr->event.evdog
	    && event_dog_client(event_thr->event.evdog) != stream)
		event_dog_notify(event_thr->event.evdog);
}

示例#3

文件： events_kernel_thr.c 项目： DayBreakZhang/acl

static void event_enable_read(ACL_EVENT *eventp, ACL_VSTREAM *stream,
	int timeout, ACL_EVENT_NOTIFY_RDWR callback, void *context)
{
	const char *myname = "event_enable_read";
	EVENT_KERNEL_THR *event_thr = (EVENT_KERNEL_THR *) eventp;
	ACL_EVENT_FDTABLE *fdp;
	ACL_SOCKET sockfd;
	int   err = 0;

	sockfd = ACL_VSTREAM_SOCK(stream);
	fdp = (ACL_EVENT_FDTABLE*) stream->fdp;
	if (fdp == NULL) {
		fdp = event_fdtable_alloc();
		fdp->listener = 0;
		fdp->stream = stream;
		stream->fdp = (void *) fdp;
	}

	/* 对同一连接的读写操作禁止同时进行监控 */
	else if (fdp->flag & EVENT_FDTABLE_FLAG_WRITE)
		acl_msg_panic("%s(%d), %s: fd %d: multiple I/O request",
			__FILE__, __LINE__, myname, sockfd);
	else {
		fdp->listener = 0;
		fdp->stream = stream;
	}

	if (fdp->r_callback != callback || fdp->r_context != context) {
		fdp->r_callback = callback;
		fdp->r_context = context;
	}

	if (timeout > 0) {
		fdp->r_timeout = ((acl_int64) timeout) * 1000000;
		fdp->r_ttl = eventp->present + fdp->r_timeout;
	} else {
		fdp->r_ttl = 0;
		fdp->r_timeout = 0;
	}

	if ((fdp->flag & EVENT_FDTABLE_FLAG_READ) == 0) {
		stream->nrefer++;
		fdp->flag = EVENT_FDTABLE_FLAG_READ | EVENT_FDTABLE_FLAG_EXPT;

		THREAD_LOCK(&event_thr->event.tb_mutex);
		
		fdp->fdidx = eventp->fdcnt;
		eventp->fdtabs[eventp->fdcnt] = fdp;
		eventp->fdcnt++;

#ifdef	USE_FDMAP
		acl_fdmap_add(event_thr->fdmap, sockfd, fdp);
#endif

		EVENT_REG_ADD_READ(err, event_thr->event_fd, sockfd, fdp);

		THREAD_UNLOCK(&event_thr->event.tb_mutex);

		if (err < 0) {
			acl_msg_fatal("%s: %s: %s, err(%d), fd(%d)",
				myname, EVENT_REG_ADD_TEXT, acl_last_serror(),
				err, sockfd);
		}
	}

	/* 主要是为了减少通知次数 */
	if (event_thr->event.blocked && event_thr->event.evdog
	    && event_dog_client(event_thr->event.evdog) != stream)
		event_dog_notify(event_thr->event.evdog);
}