int game_add_connect_event(struct sockaddr *sa, int socklen, CLIENT_MAP *client_map)
{
int ret;
struct event *event_conn = &client_map->event_recv;
int fd = 0;
fd = create_new_socket(0);
if (0 != event_assign(event_conn, base, fd, EV_READ|EV_PERSIST, cb_recv, client_map)) {
log4c_category_log(mycat, LOG4C_PRIORITY_ERROR, "%s %d: event_new failed[%d]", __FUNCTION__, __LINE__, errno);
goto fail;
}
event_add(event_conn, NULL);
ret = evutil_socket_connect(&fd, sa, socklen);
if (ret < 0) {
log4c_category_log(mycat, LOG4C_PRIORITY_ERROR, "%s %d: evutil_socket_connect failed[%d]", __FUNCTION__, __LINE__, errno);
goto fail;
}
game_set_socket_opt(fd);
return (fd);
fail:
if (fd > 0) {
evutil_closesocket(fd);
}
if (event_conn) {
event_del(event_conn);
}
return (-1);
}
static void
regress_pick_a_port(void *arg)
{
struct basic_test_data *data = arg;
struct event_base *base = data->base;
struct evconnlistener *listener1 = NULL, *listener2 = NULL;
//struct event *connecting;
struct sockaddr_in sin;
int count1 = 2, count2 = 1;
struct sockaddr_storage ss1, ss2;
struct sockaddr_in *sin1, *sin2;
ev_socklen_t slen1 = sizeof(ss1), slen2 = sizeof(ss2);
unsigned int flags =
LEV_OPT_CLOSE_ON_FREE|LEV_OPT_REUSEABLE|LEV_OPT_CLOSE_ON_EXEC;
evutil_socket_t fd1 = -1, fd2 = -1, fd3 = -1;
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl(0x7f000001); /* 127.0.0.1 */
sin.sin_port = 0; /* "You pick!" */
listener1 = evconnlistener_new_bind(base, acceptcb, &count1,
flags, -1, (struct sockaddr *)&sin, sizeof(sin));
tt_assert(listener1);
listener2 = evconnlistener_new_bind(base, acceptcb, &count2,
flags, -1, (struct sockaddr *)&sin, sizeof(sin));
tt_assert(listener2);
tt_int_op(evconnlistener_get_fd(listener1), >=, 0);
tt_int_op(evconnlistener_get_fd(listener2), >=, 0);
tt_assert(getsockname(evconnlistener_get_fd(listener1),
(struct sockaddr*)&ss1, &slen1) == 0);
tt_assert(getsockname(evconnlistener_get_fd(listener2),
(struct sockaddr*)&ss2, &slen2) == 0);
tt_int_op(ss1.ss_family, ==, AF_INET);
tt_int_op(ss2.ss_family, ==, AF_INET);
sin1 = (struct sockaddr_in*)&ss1;
sin2 = (struct sockaddr_in*)&ss2;
tt_int_op(ntohl(sin1->sin_addr.s_addr), ==, 0x7f000001);
tt_int_op(ntohl(sin2->sin_addr.s_addr), ==, 0x7f000001);
tt_int_op(sin1->sin_port, !=, sin2->sin_port);
tt_ptr_op(evconnlistener_get_base(listener1), ==, base);
tt_ptr_op(evconnlistener_get_base(listener2), ==, base);
fd1 = fd2 = fd3 = -1;
evutil_socket_connect(&fd1, (struct sockaddr*)&ss1, slen1);
evutil_socket_connect(&fd2, (struct sockaddr*)&ss1, slen1);
evutil_socket_connect(&fd3, (struct sockaddr*)&ss2, slen2);
#ifdef WIN32
Sleep(100); /* XXXX this is a stupid stopgap. */
#endif
event_base_dispatch(base);
tt_int_op(count1, ==, 0);
tt_int_op(count2, ==, 0);
end:
if (fd1>=0)
EVUTIL_CLOSESOCKET(fd1);
if (fd2>=0)
EVUTIL_CLOSESOCKET(fd2);
if (fd3>=0)
EVUTIL_CLOSESOCKET(fd3);
}
/* bufferevent 非阻塞连接 */
int
bufferevent_socket_connect(struct bufferevent *bev,
struct sockaddr *sa, int socklen)
{
struct bufferevent_private *bufev_p =
EVUTIL_UPCAST(bev, struct bufferevent_private, bev);
evutil_socket_t fd;
int r = 0;
int result=-1;
int ownfd = 0;
_bufferevent_incref_and_lock(bev);
if (!bufev_p)
goto done;
fd = bufferevent_getfd(bev);
//还没设置fd，设置fd。
if (fd < 0) {
if (!sa)
goto done;
fd = socket(sa->sa_family, SOCK_STREAM, 0);
if (fd < 0)
goto done;
if (evutil_make_socket_nonblocking(fd)<0)
goto done;
ownfd = 1;
}
if (sa) {
#ifdef WIN32
if (bufferevent_async_can_connect(bev)) {
bufferevent_setfd(bev, fd);
r = bufferevent_async_connect(bev, fd, sa, socklen);
if (r < 0)
goto freesock;
bufev_p->connecting = 1;
result = 0;
goto done;
} else
#endif
//非阻塞连接
r = evutil_socket_connect(&fd, sa, socklen);
if (r < 0)
goto freesock;
}
#ifdef WIN32
/* ConnectEx() isn't always around, even when IOCP is enabled.
* Here, we borrow the socket object's write handler to fall back
* on a non-blocking connect() when ConnectEx() is unavailable. */
if (BEV_IS_ASYNC(bev)) {
event_assign(&bev->ev_write, bev->ev_base, fd,
EV_WRITE|EV_PERSIST, bufferevent_writecb, bev);
}
#endif
bufferevent_setfd(bev, fd);
if (r == 0) { /* 正在连接，监听读事件。*/
if (! be_socket_enable(bev, EV_WRITE)) {
bufev_p->connecting = 1;
result = 0;
goto done;
}
} else if (r == 1) { /* 连接成功，激活读事件。*/
/* The connect succeeded already. How very BSD of it. */
result = 0;
bufev_p->connecting = 1;
event_active(&bev->ev_write, EV_WRITE, 1);
} else {
/* The connect failed already. How very BSD of it. */
bufev_p->connection_refused = 1;
bufev_p->connecting = 1;
result = 0;
event_active(&bev->ev_write, EV_WRITE, 1);
}
goto done;
freesock:
_bufferevent_run_eventcb(bev, BEV_EVENT_ERROR);
if (ownfd)
evutil_closesocket(fd);
/* do something about the error? */
done:
_bufferevent_decref_and_unlock(bev);
return result;
}
