static void *
handle_packets(void *arg)
{
#ifdef _WIN32
SOCKET *fdp;
#else
int *fdp;
#endif
char *buf;
ssize_t length;
#ifdef _WIN32
fdp = (SOCKET *)arg;
#else
fdp = (int *)arg;
#endif
if ((buf = (char *)malloc(MAX_PACKET_SIZE)) == NULL) {
return (NULL);
}
for (;;) {
length = recv(*fdp, buf, MAX_PACKET_SIZE, 0);
if (length > 0) {
usrsctp_conninput(fdp, buf, (size_t)length, 0);
}
}
free(buf);
return (NULL);
}
static void *
handle_packets(void *arg)
{
#ifdef _WIN32
SOCKET *fdp;
#else
int *fdp;
#endif
char *dump_buf;
ssize_t length;
char buf[MAX_PACKET_SIZE];
#ifdef _WIN32
fdp = (SOCKET *)arg;
#else
fdp = (int *)arg;
#endif
for (;;) {
length = recv(*fdp, buf, MAX_PACKET_SIZE, 0);
if (length > 0) {
if ((dump_buf = usrsctp_dumppacket(buf, (size_t)length, SCTP_DUMP_INBOUND)) != NULL) {
fprintf(stderr, "%s", dump_buf);
usrsctp_freedumpbuffer(dump_buf);
}
usrsctp_conninput(fdp, buf, (size_t)length, 0);
}
}
return (NULL);
}
gpointer
sctp_thread(gpointer user_data)
{
struct rtcdc_peer_connection *peer = (struct rtcdc_peer_connection *)user_data;
struct rtcdc_transport *transport = peer->transport;
struct ice_transport *ice = transport->ice;
struct dtls_transport *dtls = transport->dtls;
struct sctp_transport *sctp = transport->sctp;
while (!peer->exit_thread && !ice->negotiation_done)
g_usleep(2500);
if (peer->exit_thread)
return NULL;
while (!peer->exit_thread && !dtls->handshake_done)
g_usleep(2500);
if (peer->exit_thread)
return NULL;
char buf[BUFFER_SIZE];
while (!peer->exit_thread) {
if (BIO_ctrl_pending(sctp->incoming_bio) <= 0 && BIO_ctrl_pending(sctp->outgoing_bio) <= 0)
g_usleep(2500);
if (BIO_ctrl_pending(sctp->incoming_bio) > 0) {
g_mutex_lock(&sctp->sctp_mutex);
int nbytes = BIO_read(sctp->incoming_bio, buf, sizeof buf);
g_mutex_unlock(&sctp->sctp_mutex);
#ifdef DEBUG_SCTP
send(sctp->incoming_stub, buf, nbytes, 0);
#endif
if (nbytes > 0) {
usrsctp_conninput(sctp, buf, nbytes, 0);
}
}
if (BIO_ctrl_pending(sctp->outgoing_bio) > 0) {
g_mutex_lock(&sctp->sctp_mutex);
int nbytes = BIO_read(sctp->outgoing_bio, buf, sizeof buf);
g_mutex_unlock(&sctp->sctp_mutex);
#ifdef DEBUG_SCTP
send(sctp->outgoing_stub, buf, nbytes, 0);
#endif
if (nbytes > 0) {
g_mutex_lock(&dtls->dtls_mutex);
SSL_write(dtls->ssl, buf, nbytes);
g_mutex_unlock(&dtls->dtls_mutex);
}
}
}
return NULL;
}
/*
* Class: net_tomp2p_sctp_core_Sctp
* Method: on_network_in
* Signature: (J[BII)V
*/
JNIEXPORT void JNICALL
Java_net_tomp2p_sctp_core_Sctp_on_1network_1in
(JNIEnv *env, jclass clazz, jlong ptr, jbyteArray pkt, jint off, jint len)
{
jbyte *pkt_;
pkt_ = (*env)->GetByteArrayElements(env, pkt, NULL);
if (pkt_)
{
usrsctp_conninput(
(void *) (intptr_t) ptr,
pkt_ + off, len,
/* ecn_bits */ 0);
(*env)->ReleaseByteArrayElements(env, pkt, pkt_, JNI_ABORT);
}
}
static DWORD WINAPI
#else
static void *
#endif
handle_packets(void *arg)
{
#ifdef _WIN32
SOCKET *fdp;
#else
int *fdp;
#endif
char *dump_buf;
ssize_t length;
char buf[MAX_PACKET_SIZE];
#ifdef _WIN32
fdp = (SOCKET *)arg;
#else
fdp = (int *)arg;
#endif
for (;;) {
#if defined(__NetBSD__)
pthread_testcancel();
#endif
length = recv(*fdp, buf, MAX_PACKET_SIZE, 0);
if (length > 0) {
if ((dump_buf = usrsctp_dumppacket(buf, (size_t)length, SCTP_DUMP_INBOUND)) != NULL) {
fprintf(stderr, "%s", dump_buf);
usrsctp_freedumpbuffer(dump_buf);
}
usrsctp_conninput(fdp, buf, (size_t)length, 0);
}
}
#ifdef _WIN32
return 0;
#else
return (NULL);
#endif
}
static void *
handle_packets(void *arg)
{
#ifdef _WIN32
SOCKET *fdp;
#else
int *fdp;
#endif
ssize_t length;
char buf[MAX_PACKET_SIZE];
#ifdef _WIN32
fdp = (SOCKET *)arg;
#else
fdp = (int *)arg;
#endif
for (;;) {
length = recv(*fdp, buf, MAX_PACKET_SIZE, 0);
if (length > 0) {
usrsctp_conninput(fdp, buf, (size_t)length, 0);
}
}
return (NULL);
}
void *janus_sctp_thread(void *data) {
janus_sctp_association *sctp = (janus_sctp_association *)data;
if(sctp == NULL) {
JANUS_LOG(LOG_ERR, "Invalid SCTP association, closing thread\n");
g_thread_unref(g_thread_self());
return NULL;
}
JANUS_LOG(LOG_INFO, "[%"SCNu64"] Starting thread for SCTP association\n", sctp->handle_id);
janus_sctp_message *message = NULL;
gboolean sent_data = FALSE;
while(sctp->dtls != NULL && sctp_running) {
/* Anything to do at all? */
janus_mutex_lock(&sctp->mutex);
if(!sctp->ready || (g_queue_is_empty(sctp->in_messages) && g_queue_is_empty(sctp->out_messages))) {
janus_mutex_unlock(&sctp->mutex);
g_usleep (10000);
continue;
}
/* Check incoming messages */
if(!g_queue_is_empty(sctp->in_messages) && sent_data) {
while(!g_queue_is_empty(sctp->in_messages)) {
message = g_queue_pop_head(sctp->in_messages);
if(message == NULL)
continue;
#ifdef DEBUG_SCTP
if(sctp->debug_dump != NULL) {
/* Dump incoming message */
char *dump = usrsctp_dumppacket(message->buffer, message->length, SCTP_DUMP_INBOUND);
if(dump != NULL) {
fwrite(dump, sizeof(char), strlen(dump), sctp->debug_dump);
fflush(sctp->debug_dump);
usrsctp_freedumpbuffer(dump);
}
}
#endif
/* Pass this data to the SCTP association */
janus_mutex_unlock(&sctp->mutex);
usrsctp_conninput((void *)sctp, message->buffer, message->length, 0);
janus_mutex_lock(&sctp->mutex);
janus_sctp_message_destroy(message);
message = NULL;
}
}
/* Check outgoing messages */
if(sctp->dtls == NULL) {
/* No DTLS stack anymore, we're done */
janus_mutex_unlock(&sctp->mutex);
break;
}
if(!g_queue_is_empty(sctp->out_messages)) {
while(!g_queue_is_empty(sctp->out_messages)) {
message = g_queue_pop_head(sctp->out_messages);
if(message == NULL)
continue;
#ifdef DEBUG_SCTP
if(sctp->debug_dump != NULL) {
/* Dump incoming message */
char *dump = usrsctp_dumppacket(message->buffer, message->length, SCTP_DUMP_OUTBOUND);
if(dump != NULL) {
fwrite(dump, sizeof(char), strlen(dump), sctp->debug_dump);
fflush(sctp->debug_dump);
usrsctp_freedumpbuffer(dump);
}
}
#endif
/* Encapsulate this data in DTLS and send it */
janus_dtls_send_sctp_data((janus_dtls_srtp *)sctp->dtls, message->buffer, message->length);
janus_sctp_message_destroy(message);
message = NULL;
if(!sent_data)
sent_data = TRUE;
}
}
janus_mutex_unlock(&sctp->mutex);
}
JANUS_LOG(LOG_INFO, "[%"SCNu64"] Leaving SCTP association thread\n", sctp->handle_id);
/* This association has been destroyed, wait a bit and then free all the resources */
g_usleep (1*G_USEC_PER_SEC);
g_queue_free(sctp->in_messages);
sctp->in_messages = NULL;
g_queue_free(sctp->out_messages);
sctp->out_messages = NULL;
sctp->thread = NULL;
#ifdef DEBUG_SCTP
if(sctp->debug_dump != NULL)
fclose(sctp->debug_dump);
sctp->debug_dump = NULL;
#endif
g_free(sctp);
sctp = NULL;
g_thread_unref(g_thread_self());
return NULL;
}