void JackNetAdapter::EncodeTransportData()
{
//is there a timebase master change ?
int refnum = -1;
bool conditional = 0;
//TODO : get the actual timebase master
if (refnum != fLastTimebaseMaster) {
//timebase master has released its function
if (refnum == -1) {
fReturnTransportData.fTimebaseMaster = RELEASE_TIMEBASEMASTER;
jack_info("Sending a timebase master release request.");
} else {
//there is a new timebase master
fReturnTransportData.fTimebaseMaster = (conditional) ? CONDITIONAL_TIMEBASEMASTER : TIMEBASEMASTER;
jack_info("Sending a %s timebase master request.", (conditional) ? "conditional" : "non-conditional");
}
fLastTimebaseMaster = refnum;
} else {
fReturnTransportData.fTimebaseMaster = NO_CHANGE;
}
//update transport state and position
fReturnTransportData.fState = jack_transport_query(fClient, &fReturnTransportData.fPosition);
//is it a new state (that the master need to know...) ?
fReturnTransportData.fNewState = ((fReturnTransportData.fState != fLastTransportState) &&
(fReturnTransportData.fState != fSendTransportData.fState));
if (fReturnTransportData.fNewState) {
jack_info("Sending transport state '%s'.", GetTransportState(fReturnTransportData.fState));
}
fLastTransportState = fReturnTransportData.fState;
}
JackServer::JackServer(bool sync, bool temporary, int timeout, bool rt, int priority, int port_max, bool verbose, jack_timer_type_t clock, const char* server_name)
{
if (rt) {
jack_info("JACK server starting in realtime mode with priority %ld", priority);
} else {
jack_info("JACK server starting in non-realtime mode");
}
fGraphManager = JackGraphManager::Allocate(port_max);
fEngineControl = new JackEngineControl(sync, temporary, timeout, rt, priority, verbose, clock, server_name);
fEngine = new JackLockedEngine(fGraphManager, GetSynchroTable(), fEngineControl);
// A distinction is made between the threaded freewheel driver and the
// regular freewheel driver because the freewheel driver needs to run in
// threaded mode when freewheel mode is active and needs to run as a slave
// when freewheel mode isn't active.
JackFreewheelDriver *freewheelDriver =
new JackFreewheelDriver(fEngine, GetSynchroTable());
fThreadedFreewheelDriver = new JackThreadedDriver(freewheelDriver);
fFreewheelDriver = freewheelDriver;
fDriverInfo = new JackDriverInfo();
fAudioDriver = NULL;
fFreewheel = false;
JackServerGlobals::fInstance = this; // Unique instance
JackServerGlobals::fUserCount = 1; // One user
JackGlobals::fVerbose = verbose;
}
//transport---------------------------------------------------------------------------
void JackNetAdapter::DecodeTransportData()
{
//TODO : we need here to get the actual timebase master to eventually release it from its duty (see JackNetDriver)
//is there a new transport state ?
if (fSendTransportData.fNewState &&(fSendTransportData.fState != jack_transport_query(fClient, NULL))) {
switch (fSendTransportData.fState)
{
case JackTransportStopped :
jack_transport_stop(fClient);
jack_info("NetMaster : transport stops");
break;
case JackTransportStarting :
jack_transport_reposition(fClient, &fSendTransportData.fPosition);
jack_transport_start(fClient);
jack_info("NetMaster : transport starts");
break;
case JackTransportRolling :
// TODO, we need to :
// - find a way to call TransportEngine->SetNetworkSync()
// - turn the transport state to JackTransportRolling
jack_info("NetMaster : transport rolls");
break;
}
}
}
SERVER_EXPORT void NetTransportDataDisplay ( net_transport_data_t* data )
{
jack_info ( "********************Network Transport********************" );
jack_info ( "Transport new state : %u", data->fNewState );
jack_info ( "Transport timebase master : %u", data->fTimebaseMaster );
jack_info ( "Transport cycle state : %u", data->fState );
jack_info ( "**********************************************" );
}
int JackNetMasterInterface::SyncRecv()
{
packet_header_t* rx_head = reinterpret_cast<packet_header_t*> ( fRxBuffer );
int rx_bytes = Recv ( fParams.fMtu, MSG_PEEK );
if ( ( rx_bytes == 0 ) || ( rx_bytes == SOCKET_ERROR ) )
return rx_bytes;
fCycleOffset = fTxHeader.fCycle - rx_head->fCycle;
switch ( fParams.fNetworkMode )
{
case 's' :
//slow mode : allow to use full bandwidth and heavy process on the slave
// - extra latency is set to two cycles, one cycle for send/receive operations + one cycle for heavy process on the slave
// - if the network is two fast, just wait the next cycle, this mode allows a shorter cycle duration for the master
// - this mode will skip the two first cycles, thus it lets time for data to be processed and queued on the socket rx buffer
//the slow mode is the safest mode because it wait twice the bandwidth relative time (send/return + process)
if (fCycleOffset < 2)
return 0;
else
rx_bytes = Recv ( rx_head->fPacketSize, 0 );
if (fCycleOffset > 2) {
jack_info("Warning : '%s' runs in slow network mode, but data received too late (%d cycle(s) offset)", fParams.fName, fCycleOffset);
}
break;
case 'n' :
//normal use of the network :
// - extra latency is set to one cycle, what is the time needed to receive streams using full network bandwidth
// - if the network is too fast, just wait the next cycle, the benefit here is the master's cycle is shorter
// - indeed, data is supposed to be on the network rx buffer, so we don't have to wait for it
if (fCycleOffset < 1)
return 0;
else
rx_bytes = Recv ( rx_head->fPacketSize, 0 );
if (fCycleOffset != 1)
jack_info("'%s' can't run in normal network mode, data received too late (%d cycle(s) offset)", fParams.fName, fCycleOffset);
break;
case 'f' :
//fast mode suppose the network bandwith is larger than required for the transmission (only a few channels for example)
// - packets can be quickly received, quickly is here relative to the cycle duration
// - here, receive data, we can't keep it queued on the rx buffer,
// - but if there is a cycle offset, tell the user, that means we're not in fast mode anymore, network is too slow
rx_bytes = Recv ( rx_head->fPacketSize, 0 );
if (fCycleOffset != 0)
jack_info("'%s' can't run in fast network mode, data received too late (%d cycle(s) offset)", fParams.fName, fCycleOffset);
break;
}
fRxHeader.fIsLastPckt = rx_head->fIsLastPckt;
return rx_bytes;
}
int JackLoadableInternalClient::Init(const char* so_name)
{
char path_to_so[JACK_PATH_MAX + 1];
BuildClientPath(path_to_so, sizeof(path_to_so), so_name);
fHandle = LoadJackModule(path_to_so);
jack_log("JackLoadableInternalClient::JackLoadableInternalClient path_to_so = %s", path_to_so);
if (fHandle == NULL) {
PrintLoadError(so_name);
return -1;
}
fFinish = (FinishCallback)GetJackProc(fHandle, "jack_finish");
if (fFinish == NULL) {
UnloadJackModule(fHandle);
jack_error("symbol jack_finish cannot be found in %s", so_name);
return -1;
}
fDescriptor = (JackDriverDescFunction)GetJackProc(fHandle, "jack_get_descriptor");
if (fDescriptor == NULL) {
jack_info("No jack_get_descriptor entry-point for %s", so_name);
}
return 0;
}
bool JackNetSlaveInterface::Init()
{
jack_log("JackNetSlaveInterface::Init()");
// set the parameters to send
strcpy(fParams.fPacketType, "params");
fParams.fProtocolVersion = NETWORK_PROTOCOL;
SetPacketType(&fParams, SLAVE_AVAILABLE);
// init loop : get a master and start, do it until connection is ok
net_status_t status;
do {
// first, get a master, do it until a valid connection is running
do {
status = SendAvailableToMaster();
if (status == NET_SOCKET_ERROR) {
return false;
}
}
while (status != NET_CONNECTED);
// then tell the master we are ready
jack_info("Initializing connection with %s...", fParams.fMasterNetName);
status = SendStartToMaster();
if (status == NET_ERROR) {
return false;
}
}
while (status != NET_ROLLING);
return true;
}
static void
hammerfall_check_sync (hammerfall_t *h, snd_ctl_elem_value_t *ctl)
{
const char *name;
int val;
snd_ctl_elem_id_t *ctl_id;
jack_info ("check sync");
snd_ctl_elem_id_alloca (&ctl_id);
snd_ctl_elem_value_get_id (ctl, ctl_id);
name = snd_ctl_elem_id_get_name (ctl_id);
if (strcmp (name, "ADAT1 Sync Check") == 0) {
val = snd_ctl_elem_value_get_enumerated (ctl, 0);
hammerfall_check_sync_state (h, val, 0);
} else if (strcmp (name, "ADAT2 Sync Check") == 0) {
val = snd_ctl_elem_value_get_enumerated (ctl, 0);
hammerfall_check_sync_state (h, val, 1);
} else if (strcmp (name, "ADAT3 Sync Check") == 0) {
val = snd_ctl_elem_value_get_enumerated (ctl, 0);
hammerfall_check_sync_state (h, val, 2);
} else {
jack_error ("Hammerfall: unknown control \"%s\"", name);
}
}
static char* get_control_device_name(const char * device_name)
{
char * ctl_name;
regex_t expression;
regcomp(&expression, "(plug)?hw:[0-9](,[0-9])?", REG_ICASE | REG_EXTENDED);
if (!regexec(&expression, device_name, 0, NULL, 0)) {
/* the user wants a hw or plughw device, the ctl name
* should be hw:x where x is the card number */
char tmp[5];
strncpy(tmp, strstr(device_name, "hw"), 4);
tmp[4] = '\0';
jack_info("control device %s",tmp);
ctl_name = strdup(tmp);
} else {
ctl_name = strdup(device_name);
}
regfree(&expression);
if (ctl_name == NULL) {
jack_error("strdup(\"%s\") failed.", ctl_name);
}
return ctl_name;
}
void JackNetMasterInterface::Exit()
{
jack_log("JackNetMasterInterface::Exit, ID %u", fParams.fID);
// stop process
fRunning = false;
// send a 'multicast euthanasia request' - new socket is required on macosx
jack_info("Exiting '%s' %s", fParams.fName, fMulticastIP);
SetPacketType(&fParams, KILL_MASTER);
JackNetSocket mcast_socket(fMulticastIP, fSocket.GetPort());
session_params_t net_params;
memset(&net_params, 0, sizeof(session_params_t));
SessionParamsHToN(&fParams, &net_params);
if (mcast_socket.NewSocket() == SOCKET_ERROR) {
jack_error("Can't create socket : %s", StrError(NET_ERROR_CODE));
}
if (mcast_socket.SendTo(&net_params, sizeof(session_params_t), 0, fMulticastIP) == SOCKET_ERROR) {
jack_error("Can't send suicide request : %s", StrError(NET_ERROR_CODE));
}
mcast_socket.Close();
}
bool JackNetAdapter::Execute()
{
try {
// Keep running even in case of error
while (fThread.GetStatus() == JackThread::kRunning) {
if (Process() == SOCKET_ERROR) {
return false;
}
}
return false;
} catch (JackNetException& e) {
// Otherwise just restart...
e.PrintMessage();
jack_info("NetAdapter is restarted");
Reset();
fThread.DropSelfRealTime();
fThread.SetStatus(JackThread::kIniting);
if (Init()) {
fThread.SetStatus(JackThread::kRunning);
return true;
} else {
return false;
}
}
}
static OSStatus display_device_names()
{
UInt32 size;
Boolean isWritable;
int i, deviceNum;
OSStatus err;
CFStringRef UIname;
err = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices, &size, &isWritable);
if (err != noErr)
return err;
deviceNum = size/sizeof(AudioDeviceID);
AudioDeviceID devices[deviceNum];
err = AudioHardwareGetProperty(kAudioHardwarePropertyDevices, &size, devices);
if (err != noErr)
return err;
for (i = 0; i < deviceNum; i++) {
char device_name[256];
char internal_name[256];
size = sizeof(CFStringRef);
UIname = NULL;
err = AudioDeviceGetProperty(devices[i], 0, false, kAudioDevicePropertyDeviceUID, &size, &UIname);
if (err == noErr) {
CFStringGetCString(UIname, internal_name, 256, CFStringGetSystemEncoding());
} else {
goto error;
}
size = 256;
err = AudioDeviceGetProperty(devices[i], 0, false, kAudioDevicePropertyDeviceName, &size, device_name);
if (err != noErr)
return err;
jack_info("ICI");
jack_info("Device name = \'%s\', internal_name = \'%s\' (to be used as -d parameter)", device_name, internal_name);
}
return noErr;
error:
if (UIname != NULL)
CFRelease(UIname);
return err;
}
void JackDriver::RestoreConnections()
{
list<pair<string, string> >::const_iterator it;
for (it = fConnections.begin(); it != fConnections.end(); it++) {
pair<string, string> connection = *it;
jack_info("Restore connection: %s %s", connection.first.c_str(), connection.second.c_str());
fEngine->PortConnect(fClientControl.fRefNum, connection.first.c_str(), connection.second.c_str());
}
}
bool JackNetMasterInterface::Init()
{
jack_log("JackNetMasterInterface::Init : ID %u", fParams.fID);
session_params_t host_params;
uint attempt = 0;
int rx_bytes = 0;
// socket
if (fSocket.NewSocket() == SOCKET_ERROR) {
jack_error("Can't create socket : %s", StrError(NET_ERROR_CODE));
return false;
}
// timeout on receive (for init)
if (fSocket.SetTimeOut(MASTER_INIT_TIMEOUT) < 0) {
jack_error("Can't set init timeout : %s", StrError(NET_ERROR_CODE));
}
// connect
if (fSocket.Connect() == SOCKET_ERROR) {
jack_error("Can't connect : %s", StrError(NET_ERROR_CODE));
return false;
}
// send 'SLAVE_SETUP' until 'START_MASTER' received
jack_info("Sending parameters to %s...", fParams.fSlaveNetName);
do
{
session_params_t net_params;
memset(&net_params, 0, sizeof(session_params_t));
SetPacketType(&fParams, SLAVE_SETUP);
SessionParamsHToN(&fParams, &net_params);
if (fSocket.Send(&net_params, sizeof(session_params_t), 0) == SOCKET_ERROR) {
jack_error("Error in send : %s", StrError(NET_ERROR_CODE));
}
memset(&net_params, 0, sizeof(session_params_t));
if (((rx_bytes = fSocket.Recv(&net_params, sizeof(session_params_t), 0)) == SOCKET_ERROR) && (fSocket.GetError() != NET_NO_DATA)) {
jack_error("Problem with network");
return false;
}
SessionParamsNToH(&net_params, &host_params);
}
while ((GetPacketType(&host_params) != START_MASTER) && (++attempt < SLAVE_SETUP_RETRY));
if (attempt == SLAVE_SETUP_RETRY) {
jack_error("Slave doesn't respond, exiting");
return false;
}
return true;
}
void NetMidiBuffer::DisplayEvents()
{
for ( int port_index = 0; port_index < fNPorts; port_index++ )
{
for ( uint event = 0; event < fPortBuffer[port_index]->event_count; event++ )
if ( fPortBuffer[port_index]->IsValid() )
jack_info ( "port %d : midi event %u/%u -> time : %u, size : %u",
port_index + 1, event + 1, fPortBuffer[port_index]->event_count,
fPortBuffer[port_index]->events[event].time, fPortBuffer[port_index]->events[event].size );
}
}
void JackDriver::SaveConnections()
{
const char** connections;
fConnections.clear();
char alias1[REAL_JACK_PORT_NAME_SIZE];
char alias2[REAL_JACK_PORT_NAME_SIZE];
char* aliases[2];
aliases[0] = alias1;
aliases[1] = alias2;
for (int i = 0; i < fCaptureChannels; ++i) {
if (fCapturePortList[i] && (connections = fGraphManager->GetConnections(fCapturePortList[i])) != 0) {
for (int j = 0; connections[j]; j++) {
/*
fGraphManager->GetPort(fCapturePortList[i])->GetAliases(aliases);
fConnections.push_back(make_pair(aliases[0], connections[j]));
jack_info("Save connection: %s %s", aliases[0], connections[j]);
*/
fConnections.push_back(make_pair(string(fGraphManager->GetPort(fCapturePortList[i])->GetName()), string(connections[j])));
jack_info("Save connection: %s %s", fGraphManager->GetPort(fCapturePortList[i])->GetName(), connections[j]);
}
free(connections);
}
}
for (int i = 0; i < fPlaybackChannels; ++i) {
if (fPlaybackPortList[i] && (connections = fGraphManager->GetConnections(fPlaybackPortList[i])) != 0) {
for (int j = 0; connections[j]; j++) {
/*
fGraphManager->GetPort(fPlaybackPortList[i])->GetAliases(aliases);
fConnections.push_back(make_pair(connections[j], aliases[0]));
jack_info("Save connection: %s %s", connections[j], aliases[0]);
*/
fConnections.push_back(make_pair(string(connections[j]), string(fGraphManager->GetPort(fPlaybackPortList[i])->GetName())));
jack_info("Save connection: %s %s", connections[j], fGraphManager->GetPort(fPlaybackPortList[i])->GetName());
}
free(connections);
}
}
}
//open/close--------------------------------------------------------------------------
int JackNetAdapter::Open()
{
jack_info("NetAdapter started in %s mode %s Master's transport sync.",
(fParams.fSlaveSyncMode) ? "sync" : "async", (fParams.fTransportSync) ? "with" : "without");
if (fThread.StartSync() < 0) {
jack_error("Cannot start netadapter thread");
return -1;
}
return 0;
}
int JackNetSlaveInterface::DataRecv()
{
uint recvd_midi_pckt = 0;
uint recvd_audio_pckt = 0;
int rx_bytes = 0;
packet_header_t* rx_head = reinterpret_cast<packet_header_t*> ( fRxBuffer );
while ( !fRxHeader.fIsLastPckt )
{
rx_bytes = Recv ( fParams.fMtu, MSG_PEEK );
//error here, problem with recv, just skip the cycle (return -1)
if ( rx_bytes == SOCKET_ERROR )
return rx_bytes;
if ( rx_bytes && ( rx_head->fDataStream == 's' ) && ( rx_head->fID == fParams.fID ) )
{
switch ( rx_head->fDataType )
{
case 'm': //midi
rx_bytes = Recv ( rx_head->fPacketSize, 0 );
fRxHeader.fCycle = rx_head->fCycle;
fRxHeader.fIsLastPckt = rx_head->fIsLastPckt;
fNetMidiCaptureBuffer->RenderFromNetwork ( rx_head->fSubCycle, rx_bytes - sizeof ( packet_header_t ) );
if ( ++recvd_midi_pckt == rx_head->fNMidiPckt )
fNetMidiCaptureBuffer->RenderToJackPorts();
break;
case 'a': //audio
rx_bytes = Recv ( rx_head->fPacketSize, 0 );
//SL: 25/01/09
// if ( !IsNextPacket() )
// jack_error ( "Packet(s) missing..." );
if (recvd_audio_pckt++ != rx_head->fSubCycle) {
jack_error("Packet(s) missing from '%s'...", fParams.fMasterNetName);
}
fRxHeader.fCycle = rx_head->fCycle;
fRxHeader.fSubCycle = rx_head->fSubCycle;
fRxHeader.fIsLastPckt = rx_head->fIsLastPckt;
fNetAudioCaptureBuffer->RenderToJackPorts ( rx_head->fSubCycle );
break;
case 's': //sync
jack_info ( "NetSlave : overloaded, skipping receive." );
return 0;
}
}
}
fRxHeader.fCycle = rx_head->fCycle;
return 0;
}
void JackDriver::LoadConnections(int alias, bool full_name)
{
list<pair<string, pair<string, string> > >::const_iterator it;
if (full_name) {
for (it = fConnections.begin(); it != fConnections.end(); it++) {
pair<string, string> connection = (*it).second;
jack_info("Load connection: %s %s", connection.first.c_str(), connection.second.c_str());
fEngine->PortConnect(fClientControl.fRefNum, connection.first.c_str(), connection.second.c_str());
}
} else {
const char** inputs = fGraphManager->GetPorts(NULL, NULL, JackPortIsInput);
const char** outputs = fGraphManager->GetPorts(NULL, NULL, JackPortIsOutput);
for (it = fConnections.begin(); it != fConnections.end(); it++) {
pair<string, string> connection = (*it).second;
string real_input = MatchPortName(connection.first.c_str(), outputs, alias, (*it).first);
string real_output = MatchPortName(connection.second.c_str(), inputs, alias, (*it).first);
if ((real_input != "") && (real_output != "")) {
jack_info("Load connection: %s %s", real_input.c_str(), real_output.c_str());
fEngine->PortConnect(fClientControl.fRefNum, real_input.c_str(), real_output.c_str());
}
}
// Wait for connection change
if (fGraphManager->IsPendingChange()) {
JackSleep(int(fEngineControl->fPeriodUsecs * 1.1f));
}
if (inputs) {
free(inputs);
}
if (outputs) {
free(outputs);
}
}
}
static int oss_driver_bufsize (oss_driver_t *driver, jack_nframes_t nframes)
{
oss_driver_stop(driver);
set_period_size(driver, nframes);
if (driver->engine->set_buffer_size(driver->engine, driver->period_size)) {
jack_error ("OSS: cannot set engine buffer size to %d (check MIDI)", driver->period_size);
return -1;
}
jack_info("oss_driver: period size update: %u", nframes);
oss_driver_start(driver);
return 0;
}
SERVER_EXPORT void InitTime()
{
QueryPerformanceFrequency(&_jack_freq);
TIMECAPS caps;
if (timeGetDevCaps(&caps, sizeof(TIMECAPS)) != TIMERR_NOERROR) {
jack_error("InitTime : could not get timer device");
} else {
gPeriod = caps.wPeriodMin;
if (timeBeginPeriod(gPeriod) != TIMERR_NOERROR) {
jack_error("InitTime : could not set minimum timer");
gPeriod = 0;
} else {
jack_info("InitTime : multimedia timer resolution set to %d milliseconds", gPeriod);
}
}
}
static int
jack_process_already_has_real_time_scheduling (int priority)
{
#if defined(__FreeBSD__)
int res;
struct rtprio rtp;
res = rtprio(RTP_LOOKUP, getpid(), &rtp);
if (res == 0 && rtp.type == RTP_PRIO_REALTIME && rtp.prio <= priority) {
jack_info("process already runs at sufficient realtime priority %u (<=%d)",
(unsigned)rtp.prio,
priority);
return 1; // process priority is sufficient
}
#endif
return 0; // no or don't know
}
bool JackNetSlaveInterface::InitRendering()
{
jack_log("JackNetSlaveInterface::InitRendering()");
net_status_t status;
do {
// then tell the master we are ready
jack_info("Initializing connection with %s...", fParams.fMasterNetName);
status = SendStartToMaster();
if (status == NET_ERROR) {
return false;
}
}
while (status != NET_ROLLING);
return true;
}
static jack_driver_t *
dummy_driver_new (jack_client_t * client,
char *name,
unsigned int capture_ports,
unsigned int playback_ports,
jack_nframes_t sample_rate,
jack_nframes_t period_size,
unsigned long wait_time)
{
dummy_driver_t * driver;
jack_info ("creating dummy driver ... %s|%" PRIu32 "|%" PRIu32
"|%lu|%u|%u", name, sample_rate, period_size, wait_time,
capture_ports, playback_ports);
driver = (dummy_driver_t *) calloc (1, sizeof (dummy_driver_t));
jack_driver_nt_init ((jack_driver_nt_t *) driver);
driver->write = (JackDriverReadFunction) dummy_driver_write;
driver->null_cycle = (JackDriverNullCycleFunction) dummy_driver_null_cycle;
driver->nt_attach = (JackDriverNTAttachFunction) dummy_driver_attach;
driver->nt_start = (JackDriverNTStartFunction) dummy_driver_nt_start;
driver->nt_detach = (JackDriverNTDetachFunction) dummy_driver_detach;
driver->nt_bufsize = (JackDriverNTBufSizeFunction) dummy_driver_bufsize;
driver->nt_run_cycle = (JackDriverNTRunCycleFunction) dummy_driver_run_cycle;
driver->period_usecs =
(jack_time_t) floor ((((float) period_size) / sample_rate)
* 1000000.0f);
driver->sample_rate = sample_rate;
driver->period_size = period_size;
driver->wait_time = wait_time;
//driver->next_time = 0; // not needed since calloc clears the memory
driver->last_wait_ust = 0;
driver->capture_channels = capture_ports;
driver->capture_ports = NULL;
driver->playback_channels = playback_ports;
driver->playback_ports = NULL;
driver->client = client;
driver->engine = NULL;
return (jack_driver_t *) driver;
}
bool JackWaitThreadedDriver::Execute()
{
try {
// Process a null cycle until NetDriver has started
while (!fStarter.fRunning && fThread.GetStatus() == JackThread::kRunning) {
fDriver->ProcessNull();
}
// Set RT
if (fDriver->IsRealTime()) {
jack_log("JackWaitThreadedDriver::Init IsRealTime");
// Will do "something" on OSX only...
GetEngineControl()->fPeriod = GetEngineControl()->fConstraint = GetEngineControl()->fPeriodUsecs * 1000;
fThread.SetParams(GetEngineControl()->fPeriod, GetEngineControl()->fComputation, GetEngineControl()->fConstraint);
if (fThread.AcquireSelfRealTime(GetEngineControl()->fServerPriority) < 0) {
jack_error("AcquireSelfRealTime error");
} else {
set_threaded_log_function();
}
}
// Switch to keep running even in case of error
while (fThread.GetStatus() == JackThread::kRunning) {
fDriver->Process();
}
return false;
} catch (JackNetException& e) {
e.PrintMessage();
jack_info("Driver is restarted");
fThread.DropSelfRealTime();
// Thread in kIniting status again...
fThread.SetStatus(JackThread::kIniting);
if (Init()) {
// Thread in kRunning status again...
fThread.SetStatus(JackThread::kRunning);
return true;
} else {
return false;
}
}
}
// this check is to prevent apps to self connect to other apps
// TODO: make this work with multiple clients per app
int JackEngine::CheckPortsConnect(int refnum, jack_port_id_t src, jack_port_id_t dst)
{
if (fSelfConnectMode == ' ') return 1;
JackPort* src_port = fGraphManager->GetPort(src);
JackPort* dst_port = fGraphManager->GetPort(dst);
jack_log("JackEngine::CheckPortsConnect(ref = %d, src = %d, dst = %d)", refnum, src_port->GetRefNum(), dst_port->GetRefNum());
//jack_log("%s -> %s", src_port->GetName(), dst_port->GetName());
//jack_log("mode = '%c'", fSelfConnectMode);
int src_self = src_port->GetRefNum() == refnum ? 1 : 0;
int dst_self = dst_port->GetRefNum() == refnum ? 1 : 0;
//jack_log("src_self is %s", src_self ? "true" : "false");
//jack_log("dst_self is %s", dst_self ? "true" : "false");
// 0 means client is connecting other client ports (control app patchbay functionality)
// 1 means client is connecting its own port to port of other client (e.g. self connecting into "system" client)
// 2 means client is connecting its own ports (for app internal functionality)
int sum = src_self + dst_self;
//jack_log("sum = %d", sum);
if (sum == 0) return 1;
char lmode = tolower(fSelfConnectMode);
//jack_log("lmode = '%c'", lmode);
if (sum == 2 && lmode == 'e') return 1;
bool fail = lmode != fSelfConnectMode; // fail modes are upper case
//jack_log("fail = %d", (int)fail);
jack_info(
"%s port self connect request%s (%s -> %s)",
fail ? "rejecting" : "ignoring",
sum == 1 ? " to external port" : "",
src_port->GetName(),
dst_port->GetName());
return fail ? -1 : 0;
}
int JackNetMasterInterface::SyncRecv()
{
int rx_bytes = 0;
packet_header_t* rx_head = reinterpret_cast<packet_header_t*>(fRxBuffer);
// receive sync (launch the cycle)
do {
rx_bytes = Recv(fParams.fMtu, MSG_PEEK);
// connection issue (return -1)
if (rx_bytes == SOCKET_ERROR) {
return SOCKET_ERROR;
}
}
while (strcmp(rx_head->fPacketType, "header") != 0);
//PacketHeaderDisplay(rx_head);
if (rx_head->fDataType != 's') {
jack_error("Wrong packet type : %c", rx_head->fDataType);
// not the last packet..
fRxHeader.fIsLastPckt = 0;
return SYNC_PACKET_ERROR;
}
fCurrentCycleOffset = fTxHeader.fCycle - rx_head->fCycle;
if (fCurrentCycleOffset < fMaxCycleOffset && !fSynched) {
jack_info("Synching with latency = %d", fCurrentCycleOffset);
return NET_SYNCHING;
} else {
if (fCurrentCycleOffset == fMaxCycleOffset) {
// when the sync offset is reached
fSynched = true;
}
rx_bytes = Recv(rx_head->fPacketSize, 0);
fRxHeader.fIsLastPckt = rx_head->fIsLastPckt;
return rx_bytes;
}
}
int JackNetSlaveInterface::DataRecv()
{
int rx_bytes = 0;
uint recvd_midi_pckt = 0;
packet_header_t* rx_head = reinterpret_cast<packet_header_t*>(fRxBuffer);
while (!fRxHeader.fIsLastPckt) {
// how much data is queued on the rx buffer ?
rx_bytes = Recv(fParams.fMtu, MSG_PEEK);
// error here, just skip the cycle (return -1)
if (rx_bytes == SOCKET_ERROR) {
return rx_bytes;
}
if (rx_bytes && (rx_head->fDataStream == 's') && (rx_head->fID == fParams.fID)) {
// read data
switch (rx_head->fDataType) {
case 'm': // midi
rx_bytes = MidiRecv(rx_head, fNetMidiCaptureBuffer, recvd_midi_pckt);
break;
case 'a': // audio
rx_bytes = AudioRecv(rx_head, fNetAudioCaptureBuffer);
break;
case 's': // sync
jack_info("NetSlave : missing last data packet");
return FinishRecv(fNetAudioCaptureBuffer);
}
}
}
fRxHeader.fCycle = rx_head->fCycle;
return rx_bytes;
}
int netjack_wait( netjack_driver_state_t *netj )
{
int we_have_the_expected_frame = 0;
jack_nframes_t next_frame_avail;
jack_time_t packet_recv_time_stamp;
jacknet_packet_header *pkthdr;
if( !netj->next_deadline_valid ) {
netj->next_deadline = jack_get_time() + netj->period_usecs;
netj->next_deadline_valid = 1;
}
// Increment expected frame here.
if( netj->expected_framecnt_valid ) {
netj->expected_framecnt += 1;
} else {
// starting up.... lets look into the packetcache, and fetch the highest packet.
packet_cache_drain_socket( netj->packcache, netj->sockfd );
if( packet_cache_get_highest_available_framecnt( netj->packcache, &next_frame_avail ) ) {
netj->expected_framecnt = next_frame_avail;
netj->expected_framecnt_valid = 1;
} else {
// no packets there... start normally.
netj->expected_framecnt = 0;
netj->expected_framecnt_valid = 1;
}
}
//jack_log( "expect %d", netj->expected_framecnt );
// Now check if required packet is already in the cache.
// then poll (have deadline calculated)
// then drain socket, rinse and repeat.
while(1) {
if( packet_cache_get_next_available_framecnt( netj->packcache, netj->expected_framecnt, &next_frame_avail) ) {
if( next_frame_avail == netj->expected_framecnt ) {
we_have_the_expected_frame = 1;
if( !netj->always_deadline )
break;
}
}
if( ! netjack_poll_deadline( netj->sockfd, netj->next_deadline ) ) {
break;
}
packet_cache_drain_socket( netj->packcache, netj->sockfd );
}
// check if we know who to send our packets too.
if (!netj->srcaddress_valid)
if( netj->packcache->master_address_valid ) {
memcpy (&(netj->syncsource_address), &(netj->packcache->master_address), sizeof( struct sockaddr_in ) );
netj->srcaddress_valid = 1;
}
// XXX: switching mode unconditionally is stupid.
// if we were running free perhaps we like to behave differently
// ie. fastforward one packet etc.
// well... this is the first packet we see. hmm.... dunno ;S
// it works... so...
netj->running_free = 0;
//if( !we_have_the_expected_frame )
// jack_error( "netxrun... %d", netj->expected_framecnt );
if( we_have_the_expected_frame ) {
jack_time_t now = jack_get_time();
if( now < netj->next_deadline )
netj->time_to_deadline = netj->next_deadline - now;
else
netj->time_to_deadline = 0;
packet_cache_retreive_packet_pointer( netj->packcache, netj->expected_framecnt, (char **) &(netj->rx_buf), netj->rx_bufsize , &packet_recv_time_stamp);
pkthdr = (jacknet_packet_header *) netj->rx_buf;
packet_header_ntoh(pkthdr);
netj->deadline_goodness = (int)pkthdr->sync_state;
netj->packet_data_valid = 1;
int want_deadline;
if( netj->jitter_val != 0 )
want_deadline = netj->jitter_val;
else if( netj->latency < 4 )
want_deadline = -netj->period_usecs/2;
else
want_deadline = (netj->period_usecs/4+10*(int)netj->period_usecs*netj->latency/100);
if( netj->deadline_goodness != MASTER_FREEWHEELS ) {
if( netj->deadline_goodness < want_deadline ) {
netj->next_deadline -= netj->period_usecs/100;
//jack_log( "goodness: %d, Adjust deadline: --- %d\n", netj->deadline_goodness, (int) netj->period_usecs*netj->latency/100 );
}
if( netj->deadline_goodness > want_deadline ) {
netj->next_deadline += netj->period_usecs/100;
//jack_log( "goodness: %d, Adjust deadline: +++ %d\n", netj->deadline_goodness, (int) netj->period_usecs*netj->latency/100 );
}
}
// if( netj->next_deadline < (netj->period_usecs*70/100) ) {
// jack_error( "master is forcing deadline_offset to below 70%% of period_usecs... increase latency setting on master" );
// netj->deadline_offset = (netj->period_usecs*90/100);
// }
netj->next_deadline += netj->period_usecs;
} else {
netj->time_to_deadline = 0;
netj->next_deadline += netj->period_usecs;
// bah... the packet is not there.
// either
// - it got lost.
// - its late
// - sync source is not sending anymore.
// lets check if we have the next packets, we will just run a cycle without data.
// in that case.
if( packet_cache_get_next_available_framecnt( netj->packcache, netj->expected_framecnt, &next_frame_avail) )
{
jack_nframes_t offset = next_frame_avail - netj->expected_framecnt;
//XXX: hmm... i need to remember why resync_threshold wasnt right.
//if( offset < netj->resync_threshold )
if( offset < 10 ) {
// ok. dont do nothing. we will run without data.
// this seems to be one or 2 lost packets.
//
// this can also be reordered packet jitter.
// (maybe this is not happening in real live)
// but it happens in netem.
netj->packet_data_valid = 0;
// I also found this happening, when the packet queue, is too full.
// but wtf ? use a smaller latency. this link can handle that ;S
if( packet_cache_get_fill( netj->packcache, netj->expected_framecnt ) > 80.0 )
netj->next_deadline -= netj->period_usecs/2;
} else {
// the diff is too high. but we have a packet in the future.
// lets resync.
netj->expected_framecnt = next_frame_avail;
packet_cache_retreive_packet_pointer( netj->packcache, netj->expected_framecnt, (char **) &(netj->rx_buf), netj->rx_bufsize, NULL );
pkthdr = (jacknet_packet_header *) netj->rx_buf;
packet_header_ntoh(pkthdr);
//netj->deadline_goodness = 0;
netj->deadline_goodness = (int)pkthdr->sync_state - (int)netj->period_usecs * offset;
netj->next_deadline_valid = 0;
netj->packet_data_valid = 1;
}
} else {
// no packets in buffer.
netj->packet_data_valid = 0;
//printf( "frame %d No Packet in queue. num_lost_packets = %d \n", netj->expected_framecnt, netj->num_lost_packets );
if( netj->num_lost_packets < 5 ) {
// ok. No Packet in queue. The packet was either lost,
// or we are running too fast.
//
// Adjusting the deadline unconditionally resulted in
// too many xruns on master.
// But we need to adjust for the case we are running too fast.
// So lets check if the last packet is there now.
//
// It would not be in the queue anymore, if it had been
// retrieved. This might break for redundancy, but
// i will make the packet cache drop redundant packets,
// that have already been retreived.
//
if( packet_cache_get_highest_available_framecnt( netj->packcache, &next_frame_avail) ) {
if( next_frame_avail == (netj->expected_framecnt - 1) ) {
// Ok. the last packet is there now.
// and it had not been retrieved.
//
// TODO: We are still dropping 2 packets.
// perhaps we can adjust the deadline
// when (num_packets lost == 0)
// This might still be too much.
netj->next_deadline += netj->period_usecs;
}
}
} else if( (netj->num_lost_packets <= 100) ) {
// lets try adjusting the deadline harder, for some packets, we might have just ran 2 fast.
netj->next_deadline += netj->period_usecs*netj->latency/8;
} else {
// But now we can check for any new frame available.
//
if( packet_cache_get_highest_available_framecnt( netj->packcache, &next_frame_avail) ) {
netj->expected_framecnt = next_frame_avail;
packet_cache_retreive_packet_pointer( netj->packcache, netj->expected_framecnt, (char **) &(netj->rx_buf), netj->rx_bufsize, NULL );
pkthdr = (jacknet_packet_header *) netj->rx_buf;
packet_header_ntoh(pkthdr);
netj->deadline_goodness = pkthdr->sync_state;
netj->next_deadline_valid = 0;
netj->packet_data_valid = 1;
netj->running_free = 0;
jack_info( "resync after freerun... %d", netj->expected_framecnt );
} else {
if( netj->num_lost_packets == 101 ) {
jack_info( "master seems gone... entering freerun mode", netj->expected_framecnt );
}
netj->running_free = 1;
// when we really dont see packets.
// reset source address. and open possibility for new master.
// maybe dsl reconnect. Also restart of netsource without fix
// reply address changes port.
if (netj->num_lost_packets > 200 ) {
netj->srcaddress_valid = 0;
packet_cache_reset_master_address( netj->packcache );
}
}
}
}
}
int retval = 0;
if( !netj->packet_data_valid ) {
netj->num_lost_packets += 1;
if( netj->num_lost_packets == 1 )
retval = netj->period_usecs;
} else {
if( (netj->num_lost_packets>1) && !netj->running_free )
retval = (netj->num_lost_packets-1) * netj->period_usecs;
netj->num_lost_packets = 0;
}
return retval;
}
int
netjack_startup( netjack_driver_state_t *netj )
{
int first_pack_len;
struct sockaddr_in address;
// Now open the socket, and wait for the first packet to arrive...
netj->sockfd = socket (AF_INET, SOCK_DGRAM, 0);
#ifdef WIN32
if (netj->sockfd == INVALID_SOCKET)
#else
if (netj->sockfd == -1)
#endif
{
jack_info ("socket error");
return -1;
}
address.sin_family = AF_INET;
address.sin_port = htons(netj->listen_port);
address.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind (netj->sockfd, (struct sockaddr *) &address, sizeof (address)) < 0)
{
jack_info("bind error");
return -1;
}
netj->outsockfd = socket (AF_INET, SOCK_DGRAM, 0);
#ifdef WIN32
if (netj->outsockfd == INVALID_SOCKET)
#else
if (netj->outsockfd == -1)
#endif
{
jack_info ("socket error");
return -1;
}
netj->srcaddress_valid = 0;
if (netj->use_autoconfig)
{
jacknet_packet_header *first_packet = alloca (sizeof (jacknet_packet_header));
#ifdef WIN32
int address_size = sizeof( struct sockaddr_in );
#else
socklen_t address_size = sizeof (struct sockaddr_in);
#endif
//jack_info ("Waiting for an incoming packet !!!");
//jack_info ("*** IMPORTANT *** Dont connect a client to jackd until the driver is attached to a clock source !!!");
while(1) {
if( ! netjack_poll( netj->sockfd, 1000 ) ) {
jack_info ("Waiting aborted");
return -1;
}
first_pack_len = recvfrom (netj->sockfd, (char *)first_packet, sizeof (jacknet_packet_header), 0, (struct sockaddr*) & netj->syncsource_address, &address_size);
#ifdef WIN32
if( first_pack_len == -1 ) {
first_pack_len = sizeof(jacknet_packet_header);
break;
}
#else
if (first_pack_len == sizeof (jacknet_packet_header))
break;
#endif
}
netj->srcaddress_valid = 1;
if (first_pack_len == sizeof (jacknet_packet_header))
{
packet_header_ntoh (first_packet);
jack_info ("AutoConfig Override !!!");
if (netj->sample_rate != first_packet->sample_rate)
{
jack_info ("AutoConfig Override: Master JACK sample rate = %d", first_packet->sample_rate);
netj->sample_rate = first_packet->sample_rate;
}
if (netj->period_size != first_packet->period_size)
{
jack_info ("AutoConfig Override: Master JACK period size is %d", first_packet->period_size);
netj->period_size = first_packet->period_size;
}
if (netj->capture_channels_audio != first_packet->capture_channels_audio)
{
jack_info ("AutoConfig Override: capture_channels_audio = %d", first_packet->capture_channels_audio);
netj->capture_channels_audio = first_packet->capture_channels_audio;
}
if (netj->capture_channels_midi != first_packet->capture_channels_midi)
{
jack_info ("AutoConfig Override: capture_channels_midi = %d", first_packet->capture_channels_midi);
netj->capture_channels_midi = first_packet->capture_channels_midi;
}
if (netj->playback_channels_audio != first_packet->playback_channels_audio)
{
jack_info ("AutoConfig Override: playback_channels_audio = %d", first_packet->playback_channels_audio);
netj->playback_channels_audio = first_packet->playback_channels_audio;
}
if (netj->playback_channels_midi != first_packet->playback_channels_midi)
{
jack_info ("AutoConfig Override: playback_channels_midi = %d", first_packet->playback_channels_midi);
netj->playback_channels_midi = first_packet->playback_channels_midi;
}
netj->mtu = first_packet->mtu;
jack_info ("MTU is set to %d bytes", first_packet->mtu);
netj->latency = first_packet->latency;
}
}
netj->capture_channels = netj->capture_channels_audio + netj->capture_channels_midi;
netj->playback_channels = netj->playback_channels_audio + netj->playback_channels_midi;
if( (netj->capture_channels * netj->period_size * netj->latency * 4) > 100000000 ) {
jack_error( "autoconfig requests more than 100MB packet cache... bailing out" );
exit(1);
}
if( netj->playback_channels > 1000 ) {
jack_error( "autoconfig requests more than 1000 playback channels... bailing out" );
exit(1);
}
if( netj->mtu < (2*sizeof( jacknet_packet_header )) ) {
jack_error( "bullshit mtu requested by autoconfig" );
exit(1);
}
if( netj->sample_rate == 0 ) {
jack_error( "sample_rate 0 requested by autoconfig" );
exit(1);
}
// After possible Autoconfig: do all calculations...
netj->period_usecs =
(jack_time_t) floor ((((float) netj->period_size) / (float)netj->sample_rate)
* 1000000.0f);
if( netj->latency == 0 )
netj->deadline_offset = 50*netj->period_usecs;
else
netj->deadline_offset = netj->period_usecs + 10*netj->latency*netj->period_usecs/100;
if( netj->bitdepth == CELT_MODE ) {
// celt mode.
// TODO: this is a hack. But i dont want to change the packet header.
netj->resample_factor = (netj->resample_factor * netj->period_size * 1024 / netj->sample_rate / 8)&(~1);
netj->resample_factor_up = (netj->resample_factor_up * netj->period_size * 1024 / netj->sample_rate / 8)&(~1);
netj->net_period_down = netj->resample_factor;
netj->net_period_up = netj->resample_factor_up;
} else {
netj->net_period_down = (float) netj->period_size / (float) netj->resample_factor;
netj->net_period_up = (float) netj->period_size / (float) netj->resample_factor_up;
}
netj->rx_bufsize = sizeof (jacknet_packet_header) + netj->net_period_down * netj->capture_channels * get_sample_size (netj->bitdepth);
netj->packcache = packet_cache_new (netj->latency + 50, netj->rx_bufsize, netj->mtu);
netj->expected_framecnt_valid = 0;
netj->num_lost_packets = 0;
netj->next_deadline_valid = 0;
netj->deadline_goodness = 0;
netj->time_to_deadline = 0;
// Special handling for latency=0
if( netj->latency == 0 )
netj->resync_threshold = 0;
else
netj->resync_threshold = MIN( 15, netj->latency-1 );
netj->running_free = 0;
return 0;
}
