C++ (Cpp) clear_wb_list Examples

Example #1

File: socket_server.c Project: puXiaoyi/skynet

// 创建socket_server                                                                                                                                                                       
struct socket_server * 
socket_server_create() {
	int i;
	int fd[2];
	// 创建事件循环句柄 epoll/kqueue
	poll_fd efd = sp_create();
	if (sp_invalid(efd)) {
		fprintf(stderr, "socket-server: create event pool failed.\n");
		return NULL;
	}
	// 创建管道，这里用于进程内读写指令
	if (pipe(fd)) {
		sp_release(efd);
		fprintf(stderr, "socket-server: create socket pair failed.\n");
		return NULL;
	}
	// 把管道的读端加入事件循环
	if (sp_add(efd, fd[0], NULL)) {
		// add recvctrl_fd to event poll
		fprintf(stderr, "socket-server: can't add server fd to event pool.\n");
		close(fd[0]);
		close(fd[1]);
		sp_release(efd);
		return NULL;
	}

	// 创建并初始化socket_server
	struct socket_server *ss = MALLOC(sizeof(*ss));
	ss->event_fd = efd;
	ss->recvctrl_fd = fd[0];
	ss->sendctrl_fd = fd[1];
	ss->checkctrl = 1;

	for (i=0;i<MAX_SOCKET;i++) {
		struct socket *s = &ss->slot[i];
		s->type = SOCKET_TYPE_INVALID;
		clear_wb_list(&s->high);
		clear_wb_list(&s->low);
	}
	ss->alloc_id = 0;
	ss->event_n = 0;
	ss->event_index = 0;
	memset(&ss->soi, 0, sizeof(ss->soi));
	// 清空可读文件描述符集，为select做准备
	FD_ZERO(&ss->rfds);
	// 判断管道读套接字描述符小于系统描述符集大小常量，一般为1024
	// has_cmd中会调用FD_SET把管道读套接字加入可读文件描述符集管理
	// 提前判断避免FD_SET执行错误
	assert(ss->recvctrl_fd < FD_SETSIZE);

	return ss;
}

Example #2

File: socket_server.c Project: ZhuanJia/my-skynet

struct socket_server *
socket_server_create()
{
	int i;
	int fd[2];
	poll_fd efd = sp_create();
	if (sp_invalid(efd))
	{
		fprintf(stderr, "socket-server: create event pool failed.\n");
		return NULL;
	}
	if (pipe(fd))
	{
		sp_release(efd);
		fprintf(stderr, "socket-server: create socket pair failed.\n");
		return NULL;
	}
	if (sp_add(efd, fd[0], NULL))
	{
		// add recvctrl_fd to event poll
		fprintf(stderr, "socket-server: can't add server fd to event pool.\n");
		close(fd[0]);
		close(fd[1]);
		sp_release(efd);
		return NULL;
	}

	struct socket_server *ss = MALLOC(sizeof(*ss));
	ss->event_fd = efd;
	ss->recvctrl_fd = fd[0];
	ss->sendctrl_fd = fd[1];
	ss->checkctrl = 1;

	for (i = 0; i < MAX_SOCKET; i++)
	{
		struct socket *s = &ss->slot[i];
		s->type = SOCKET_TYPE_INVALID;
		clear_wb_list(&s->high);
		clear_wb_list(&s->low);
	}
	ss->alloc_id = 0;
	ss->event_n = 0;
	ss->event_index = 0;
	FD_ZERO(&ss->rfds);
	assert(ss->recvctrl_fd < FD_SETSIZE);

	return ss;
}