// Called from openavbTLThreadFn() which is started from openavbTLRun()
void openavbTLRunTalker(tl_state_t *pTLState)
{
AVB_TRACE_ENTRY(AVB_TRACE_TL);
if (!pTLState) {
AVB_LOG_ERROR("Invalid TLState");
AVB_TRACE_EXIT(AVB_TRACE_TL);
return;
}
pTLState->pPvtTalkerData = calloc(1, sizeof(talker_data_t));
if (!pTLState->pPvtTalkerData) {
AVB_LOG_WARNING("Failed to allocate talker data.");
return;
}
// Create Stats Mutex
{
MUTEX_ATTR_HANDLE(mta);
MUTEX_ATTR_INIT(mta);
MUTEX_ATTR_SET_TYPE(mta, MUTEX_ATTR_TYPE_DEFAULT);
MUTEX_ATTR_SET_NAME(mta, "TLStatsMutex");
MUTEX_CREATE_ERR();
MUTEX_CREATE(pTLState->statsMutex, mta);
MUTEX_LOG_ERR("Could not create/initialize 'TLStatsMutex' mutex");
}
/* If using endpoint register talker,
else register with tpsec */
pTLState->bConnected = openavbTLRunTalkerInit(pTLState);
if (pTLState->bConnected) {
bool bServiceIPC;
// Do until we are stopped or loose connection to endpoint
while (pTLState->bRunning && pTLState->bConnected) {
// Talk (or just sleep if not streaming.)
bServiceIPC = talkerDoStream(pTLState);
// TalkerDoStream() returns TRUE once per second,
// so that we can service our IPC at that low rate.
if (bServiceIPC) {
// Look for messages from endpoint. Don't block (timeout=0)
if (!openavbEptClntService(pTLState->endpointHandle, 0)) {
AVB_LOGF_WARNING("Lost connection to endpoint, will retry "STREAMID_FORMAT, STREAMID_ARGS(&(((talker_data_t *)pTLState->pPvtTalkerData)->streamID)));
pTLState->bConnected = FALSE;
pTLState->endpointHandle = 0;
}
}
}
// Stop streaming
talkerStopStream(pTLState);
{
MUTEX_CREATE_ERR();
MUTEX_DESTROY(pTLState->statsMutex); // Destroy Stats Mutex
MUTEX_LOG_ERR("Error destroying mutex");
}
// withdraw our talker registration
if (pTLState->bConnected)
openavbEptClntStopStream(pTLState->endpointHandle, &(((talker_data_t *)pTLState->pPvtTalkerData)->streamID));
openavbTLRunTalkerFinish(pTLState);
}
else {
AVB_LOGF_WARNING("Failed to connect to endpoint"STREAMID_FORMAT, STREAMID_ARGS(&(((talker_data_t *)pTLState->pPvtTalkerData)->streamID)));
}
if (pTLState->pPvtTalkerData) {
free(pTLState->pPvtTalkerData);
pTLState->pPvtTalkerData = NULL;
}
AVB_TRACE_EXIT(AVB_TRACE_TL);
}
/* Talker callback comes from endpoint, to indicate when listeners
* come and go. We may need to start or stop the talker thread.
*/
void openavbEptClntNotifyTlkrOfSrpCb(int endpointHandle,
AVBStreamID_t *streamID,
char *ifname,
U8 destAddr[],
openavbSrpLsnrDeclSubtype_t lsnrDecl,
U8 srClass,
U32 classRate,
U16 vlanID,
U8 priority,
U16 fwmark)
{
AVB_TRACE_ENTRY(AVB_TRACE_TL);
tl_state_t *pTLState = TLHandleListGet(endpointHandle);
talker_data_t *pTalkerData = pTLState->pPvtTalkerData;
if (!pTLState) {
AVB_LOG_WARNING("Unable to get talker from endpoint handle.");
return;
}
// If not a talker, ignore this callback.
if (pTLState->cfg.role != AVB_ROLE_TALKER) {
AVB_LOG_DEBUG("Ignoring Talker callback");
return;
}
AVB_LOGF_DEBUG("%s streaming=%d, lsnrDecl=%d", __FUNCTION__, pTLState->bStreaming, lsnrDecl);
openavb_tl_cfg_t *pCfg = &pTLState->cfg;
if (!pTLState->bStreaming) {
if (lsnrDecl == openavbSrp_LDSt_Ready
|| lsnrDecl == openavbSrp_LDSt_Ready_Failed) {
// Save the data provided by endpoint/SRP
if (!pCfg->ifname[0]) {
strncpy(pTalkerData->ifname, ifname, IFNAMSIZ);
} else {
strncpy(pTalkerData->ifname, pCfg->ifname, IFNAMSIZ);
}
memcpy(&pTalkerData->streamID, streamID, sizeof(AVBStreamID_t));
memcpy(&pTalkerData->destAddr, destAddr, ETH_ALEN);
pTalkerData->srClass = srClass;
pTalkerData->classRate = classRate;
pTalkerData->vlanID = vlanID;
pTalkerData->vlanPCP = priority;
pTalkerData->fwmark = fwmark;
// We should start streaming
AVB_LOGF_INFO("Starting stream: "STREAMID_FORMAT, STREAMID_ARGS(streamID));
talkerStartStream(pTLState);
}
else if (lsnrDecl == openavbSrp_LDSt_Stream_Info) {
// Stream information is available does NOT mean listener is ready. Stream not started yet.
if (!pCfg->ifname[0]) {
strncpy(pTalkerData->ifname, ifname, IFNAMSIZ);
} else {
strncpy(pTalkerData->ifname, pCfg->ifname, IFNAMSIZ);
}
memcpy(&pTalkerData->streamID, streamID, sizeof(AVBStreamID_t));
memcpy(&pTalkerData->destAddr, destAddr, ETH_ALEN);
pTalkerData->srClass = srClass;
pTalkerData->classRate = classRate;
pTalkerData->vlanID = vlanID;
pTalkerData->vlanPCP = priority;
pTalkerData->fwmark = fwmark;
}
}
else {
if (lsnrDecl != openavbSrp_LDSt_Ready
&& lsnrDecl != openavbSrp_LDSt_Ready_Failed) {
// Nobody is listening any more
AVB_LOGF_INFO("Stopping stream: "STREAMID_FORMAT, STREAMID_ARGS(streamID));
talkerStopStream(pTLState);
}
}
// Let the AVDECC Msg server know our current stream ID, in case it was updated by MAAP.
if (pTLState->avdeccMsgHandle != AVB_AVDECC_MSG_HANDLE_INVALID) {
if (!openavbAvdeccMsgClntTalkerStreamID(pTLState->avdeccMsgHandle,
pTalkerData->srClass, pTalkerData->streamID.addr, pTalkerData->streamID.uniqueID,
pTalkerData->destAddr, pTalkerData->vlanID)) {
AVB_LOG_ERROR("openavbAvdeccMsgClntTalkerStreamID() failed");
}
}
AVB_TRACE_EXIT(AVB_TRACE_TL);
}
