1 /* Copyright 2011,2013 NORDUnet A/S. All rights reserved.
2 See LICENSE for licensing information. */
4 #if defined HAVE_CONFIG_H
9 #include <event2/event.h>
10 #include <event2/bufferevent.h>
11 #include <radsec/radsec.h>
12 #include <radsec/radsec-impl.h>
22 _conn_open (struct rs_connection *conn, struct rs_message *msg)
24 if (event_init_eventbase (conn))
27 if (!conn->active_peer)
28 peer_pick_peer (conn);
29 if (!conn->active_peer)
30 return rs_err_conn_push_fl (conn, RSE_NOPEER, __FILE__, __LINE__, NULL);
32 if (event_init_socket (conn, conn->active_peer))
35 if (conn->base_.realm->type == RS_CONN_TYPE_TCP
36 || conn->base_.realm->type == RS_CONN_TYPE_TLS)
38 if (tcp_init_connect_timer (conn))
40 if (event_init_bufferevent (conn, conn->active_peer))
45 if (udp_init (conn, msg))
47 if (udp_init_retransmit_timer (conn))
51 if (!conn->is_connected)
52 if (!conn->is_connecting)
53 event_do_connect (conn);
59 _conn_is_open_p (struct rs_connection *conn)
61 return conn->active_peer && conn->is_connected;
64 /* User callback used when we're dispatching for user. */
66 _wcb (void *user_data)
68 struct rs_message *msg = (struct rs_message *) user_data;
70 msg->flags |= RS_MESSAGE_SENT;
71 if (msg->conn->base_.bev)
72 bufferevent_disable (msg->conn->base_.bev, EV_WRITE|EV_READ);
74 event_del (msg->conn->base_.wev);
78 rs_message_send (struct rs_message *msg, void *user_data)
80 struct rs_connection *conn = NULL;
87 if (_conn_is_open_p (conn))
88 message_do_send (msg);
90 if (_conn_open (conn, msg))
93 assert (conn->base_.ctx);
94 assert (conn->base_.ctx->evb);
95 assert (conn->active_peer);
96 assert (conn->base_.fd >= 0);
98 conn->base_.user_data = user_data;
100 if (conn->base_.bev) /* TCP */
102 bufferevent_setcb (conn->base_.bev, NULL, tcp_write_cb, tcp_event_cb, msg);
103 bufferevent_enable (conn->base_.bev, EV_WRITE);
107 event_assign (conn->base_.wev, conn->base_.ctx->evb,
108 event_get_fd (conn->base_.wev),
109 EV_WRITE, event_get_callback (conn->base_.wev), msg);
110 err = event_add (conn->base_.wev, NULL);
112 return rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
114 evutil_gai_strerror (err));
117 /* Do dispatch, unless the user wants to do it herself. */
118 if (!conn_user_dispatch_p (conn))
120 conn->callbacks.sent_cb = _wcb;
121 conn->base_.user_data = msg;
122 rs_debug (("%s: entering event loop\n", __func__));
123 err = event_base_dispatch (conn->base_.ctx->evb);
125 return rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
126 "event_base_dispatch: %s",
127 evutil_gai_strerror (err));
128 rs_debug (("%s: event loop done\n", __func__));
129 conn->callbacks.sent_cb = NULL;
130 conn->base_.user_data = NULL;
132 if ((msg->flags & RS_MESSAGE_SENT) == 0)
134 assert (rs_err_conn_peek_code (conn));
135 return rs_err_conn_peek_code (conn);