/**
* Create UDP stream transport from existing socket info.
*/
PJ_DEF(pj_status_t) pjmedia_transport_udp_attach( pjmedia_endpt *endpt,
const char *name,
const pjmedia_sock_info *si,
unsigned options,
pjmedia_transport **p_tp)
{
struct transport_udp *tp;
pj_pool_t *pool;
pj_ioqueue_t *ioqueue;
pj_ioqueue_callback rtp_cb, rtcp_cb;
pj_ssize_t size;
unsigned i;
pj_status_t status;
/* Sanity check */
PJ_ASSERT_RETURN(endpt && si && p_tp, PJ_EINVAL);
/* Check name */
if (!name)
name = "udpmedia";
/* Get ioqueue instance */
ioqueue = pjmedia_endpt_get_ioqueue(endpt);
/* Create transport structure */
pool = pjmedia_endpt_create_pool(endpt, name, 4000, 4000);
if (!pool)
return PJ_ENOMEM;
tp = pj_pool_zalloc(pool, sizeof(struct transport_udp));
tp->pool = pool;
tp->options = options;
pj_ansi_strcpy(tp->base.name, name);
tp->base.op = &transport_udp_op;
/* Copy socket infos */
tp->rtp_sock = si->rtp_sock;
tp->rtp_addr_name = si->rtp_addr_name;
tp->rtcp_sock = si->rtcp_sock;
tp->rtcp_addr_name = si->rtcp_addr_name;
/* If address is 0.0.0.0, use host's IP address */
if (tp->rtp_addr_name.sin_addr.s_addr == 0) {
pj_in_addr hostip;
status = pj_gethostip(&hostip);
if (status != PJ_SUCCESS)
goto on_error;
tp->rtp_addr_name.sin_addr = hostip;
}
/* Same with RTCP */
if (tp->rtcp_addr_name.sin_addr.s_addr == 0) {
tp->rtcp_addr_name.sin_addr.s_addr = tp->rtp_addr_name.sin_addr.s_addr;
}
/* Setup RTP socket with the ioqueue */
pj_bzero(&rtp_cb, sizeof(rtp_cb));
rtp_cb.on_read_complete = &on_rx_rtp;
status = pj_ioqueue_register_sock(pool, ioqueue, tp->rtp_sock, tp,
&rtp_cb, &tp->rtp_key);
if (status != PJ_SUCCESS)
goto on_error;
pj_ioqueue_op_key_init(&tp->rtp_read_op, sizeof(tp->rtp_read_op));
for (i=0; i<PJ_ARRAY_SIZE(tp->rtp_pending_write); ++i)
pj_ioqueue_op_key_init(&tp->rtp_pending_write[i].op_key,
sizeof(tp->rtp_pending_write[i].op_key));
/* Kick of pending RTP read from the ioqueue */
tp->rtp_addrlen = sizeof(tp->rtp_src_addr);
size = sizeof(tp->rtp_pkt);
status = pj_ioqueue_recvfrom(tp->rtp_key, &tp->rtp_read_op,
tp->rtp_pkt, &size, PJ_IOQUEUE_ALWAYS_ASYNC,
&tp->rtp_src_addr, &tp->rtp_addrlen);
if (status != PJ_EPENDING)
goto on_error;
/* Setup RTCP socket with ioqueue */
pj_bzero(&rtcp_cb, sizeof(rtcp_cb));
rtcp_cb.on_read_complete = &on_rx_rtcp;
status = pj_ioqueue_register_sock(pool, ioqueue, tp->rtcp_sock, tp,
&rtcp_cb, &tp->rtcp_key);
if (status != PJ_SUCCESS)
goto on_error;
pj_ioqueue_op_key_init(&tp->rtcp_read_op, sizeof(tp->rtcp_read_op));
pj_ioqueue_op_key_init(&tp->rtcp_write_op, sizeof(tp->rtcp_write_op));
/* Kick of pending RTCP read from the ioqueue */
size = sizeof(tp->rtcp_pkt);
tp->rtcp_addr_len = sizeof(tp->rtcp_src_addr);
status = pj_ioqueue_recvfrom( tp->rtcp_key, &tp->rtcp_read_op,
tp->rtcp_pkt, &size, PJ_IOQUEUE_ALWAYS_ASYNC,
&tp->rtcp_src_addr, &tp->rtcp_addr_len);
if (status != PJ_EPENDING)
goto on_error;
/* Done */
*p_tp = &tp->base;
return PJ_SUCCESS;
on_error:
pjmedia_transport_udp_close(&tp->base);
return status;
}
/**
* Create UDP stream transport from existing socket info.
*/
PJ_DEF(pj_status_t) pjmedia_transport_udp_attach( pjmedia_endpt *endpt,
const char *name,
const pjmedia_sock_info *si,
unsigned options,
pjmedia_transport **p_tp)
{
struct transport_udp *tp;
pj_pool_t *pool;
pj_ioqueue_t *ioqueue;
pj_ioqueue_callback rtp_cb, rtcp_cb;
pj_ssize_t size;
unsigned i;
pj_status_t status;
/* Sanity check */
PJ_ASSERT_RETURN(endpt && si && p_tp, PJ_EINVAL);
/* Get ioqueue instance */
ioqueue = pjmedia_endpt_get_ioqueue(endpt);
if (name==NULL)
name = "udp%p";
/* Create transport structure */
pool = pjmedia_endpt_create_pool(endpt, name, 512, 512);
if (!pool)
return PJ_ENOMEM;
tp = PJ_POOL_ZALLOC_T(pool, struct transport_udp);
tp->pool = pool;
tp->options = options;
pj_memcpy(tp->base.name, pool->obj_name, PJ_MAX_OBJ_NAME);
tp->base.op = &transport_udp_op;
tp->base.type = PJMEDIA_TRANSPORT_TYPE_UDP;
/* Copy socket infos */
tp->rtp_sock = si->rtp_sock;
tp->rtp_addr_name = si->rtp_addr_name;
tp->rtcp_sock = si->rtcp_sock;
tp->rtcp_addr_name = si->rtcp_addr_name;
/* If address is 0.0.0.0, use host's IP address */
if (!pj_sockaddr_has_addr(&tp->rtp_addr_name)) {
pj_sockaddr hostip;
status = pj_gethostip(tp->rtp_addr_name.addr.sa_family, &hostip);
if (status != PJ_SUCCESS)
goto on_error;
pj_memcpy(pj_sockaddr_get_addr(&tp->rtp_addr_name),
pj_sockaddr_get_addr(&hostip),
pj_sockaddr_get_addr_len(&hostip));
}
/* Same with RTCP */
if (!pj_sockaddr_has_addr(&tp->rtcp_addr_name)) {
pj_memcpy(pj_sockaddr_get_addr(&tp->rtcp_addr_name),
pj_sockaddr_get_addr(&tp->rtp_addr_name),
pj_sockaddr_get_addr_len(&tp->rtp_addr_name));
}
/* Setup RTP socket with the ioqueue */
pj_bzero(&rtp_cb, sizeof(rtp_cb));
rtp_cb.on_read_complete = &on_rx_rtp;
status = pj_ioqueue_register_sock(pool, ioqueue, tp->rtp_sock, tp,
&rtp_cb, &tp->rtp_key);
if (status != PJ_SUCCESS)
goto on_error;
/* Disallow concurrency so that detach() and destroy() are
* synchronized with the callback.
*/
status = pj_ioqueue_set_concurrency(tp->rtp_key, PJ_FALSE);
if (status != PJ_SUCCESS)
goto on_error;
pj_ioqueue_op_key_init(&tp->rtp_read_op, sizeof(tp->rtp_read_op));
for (i=0; i<PJ_ARRAY_SIZE(tp->rtp_pending_write); ++i)
pj_ioqueue_op_key_init(&tp->rtp_pending_write[i].op_key,
sizeof(tp->rtp_pending_write[i].op_key));
/* Kick of pending RTP read from the ioqueue */
tp->rtp_addrlen = sizeof(tp->rtp_src_addr);
size = sizeof(tp->rtp_pkt);
status = pj_ioqueue_recvfrom(tp->rtp_key, &tp->rtp_read_op,
tp->rtp_pkt, &size, PJ_IOQUEUE_ALWAYS_ASYNC,
&tp->rtp_src_addr, &tp->rtp_addrlen);
if (status != PJ_EPENDING)
goto on_error;
/* Setup RTCP socket with ioqueue */
pj_bzero(&rtcp_cb, sizeof(rtcp_cb));
rtcp_cb.on_read_complete = &on_rx_rtcp;
status = pj_ioqueue_register_sock(pool, ioqueue, tp->rtcp_sock, tp,
&rtcp_cb, &tp->rtcp_key);
if (status != PJ_SUCCESS)
goto on_error;
status = pj_ioqueue_set_concurrency(tp->rtcp_key, PJ_FALSE);
if (status != PJ_SUCCESS)
goto on_error;
pj_ioqueue_op_key_init(&tp->rtcp_read_op, sizeof(tp->rtcp_read_op));
pj_ioqueue_op_key_init(&tp->rtcp_write_op, sizeof(tp->rtcp_write_op));
/* Kick of pending RTCP read from the ioqueue */
size = sizeof(tp->rtcp_pkt);
tp->rtcp_addr_len = sizeof(tp->rtcp_src_addr);
status = pj_ioqueue_recvfrom( tp->rtcp_key, &tp->rtcp_read_op,
tp->rtcp_pkt, &size, PJ_IOQUEUE_ALWAYS_ASYNC,
&tp->rtcp_src_addr, &tp->rtcp_addr_len);
if (status != PJ_EPENDING)
goto on_error;
/* Done */
*p_tp = &tp->base;
return PJ_SUCCESS;
on_error:
transport_destroy(&tp->base);
return status;
}