--- linuxsampler/trunk/src/network/lscpserver.cpp 2004/06/14 19:33:16 123 +++ linuxsampler/trunk/src/network/lscpserver.cpp 2005/09/23 06:58:26 778 @@ -3,31 +3,95 @@ * LinuxSampler - modular, streaming capable sampler * * * * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * + * Copyright (C) 2005 Christian Schoenebeck * * * - * This program is free software; you can redistribute it and/or modify * + * This library is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * * the Free Software Foundation; either version 2 of the License, or * * (at your option) any later version. * * * - * This program is distributed in the hope that it will be useful, * + * This library is distributed in the hope that it will be useful, * * but WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * * GNU General Public License for more details. * * * * You should have received a copy of the GNU General Public License * - * along with this program; if not, write to the Free Software * + * along with this library; if not, write to the Free Software * * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * * MA 02111-1307 USA * ***************************************************************************/ #include "lscpserver.h" #include "lscpresultset.h" +#include "lscpevent.h" +//#include "../common/global.h" -#include "../engines/gig/Engine.h" -#include "../audiodriver/AudioOutputDeviceFactory.h" +#include -LSCPServer::LSCPServer(Sampler* pSampler) : Thread(false, 0, -4) { +#if HAVE_SQLITE3 +# include "sqlite3.h" +#endif + +#include "../engines/EngineFactory.h" +#include "../engines/EngineChannelFactory.h" +#include "../drivers/audio/AudioOutputDeviceFactory.h" +#include "../drivers/midi/MidiInputDeviceFactory.h" + +/** + * Below are a few static members of the LSCPServer class. + * The big assumption here is that LSCPServer is going to remain a singleton. + * These members are used to support client connections. + * Class handles multiple connections at the same time using select() and non-blocking recv() + * Commands are processed by a single LSCPServer thread. + * Notifications are delivered either by the thread that originated them + * or (if the resultset is currently in progress) by the LSCPServer thread + * after the resultset was sent out. + * This makes sure that resultsets can not be interrupted by notifications. + * This also makes sure that the thread sending notification is not blocked + * by the LSCPServer thread. + */ +fd_set LSCPServer::fdSet; +int LSCPServer::currentSocket = -1; +std::vector LSCPServer::Sessions = std::vector(); +std::map LSCPServer::bufferedNotifies = std::map(); +std::map LSCPServer::bufferedCommands = std::map(); +std::map< LSCPEvent::event_t, std::list > LSCPServer::eventSubscriptions = std::map< LSCPEvent::event_t, std::list >(); +Mutex LSCPServer::NotifyMutex = Mutex(); +Mutex LSCPServer::NotifyBufferMutex = Mutex(); +Mutex LSCPServer::SubscriptionMutex = Mutex(); +Mutex LSCPServer::RTNotifyMutex = Mutex(); + +LSCPServer::LSCPServer(Sampler* pSampler, long int addr, short int port) : Thread(true, false, 0, -4) { + SocketAddress.sin_family = AF_INET; + SocketAddress.sin_addr.s_addr = addr; + SocketAddress.sin_port = port; this->pSampler = pSampler; + LSCPEvent::RegisterEvent(LSCPEvent::event_channel_count, "CHANNEL_COUNT"); + LSCPEvent::RegisterEvent(LSCPEvent::event_voice_count, "VOICE_COUNT"); + LSCPEvent::RegisterEvent(LSCPEvent::event_stream_count, "STREAM_COUNT"); + LSCPEvent::RegisterEvent(LSCPEvent::event_buffer_fill, "BUFFER_FILL"); + LSCPEvent::RegisterEvent(LSCPEvent::event_channel_info, "CHANNEL_INFO"); + LSCPEvent::RegisterEvent(LSCPEvent::event_misc, "MISCELLANEOUS"); + LSCPEvent::RegisterEvent(LSCPEvent::event_total_voice_count, "TOTAL_VOICE_COUNT"); + hSocket = -1; +} + +LSCPServer::~LSCPServer() { + if (hSocket >= 0) close(hSocket); +} + +/** + * Blocks the calling thread until the LSCP Server is initialized and + * accepting socket connections, if the server is already initialized then + * this method will return immediately. + * @param TimeoutSeconds - optional: max. wait time in seconds + * (default: 0s) + * @param TimeoutNanoSeconds - optional: max wait time in nano seconds + * (default: 0ns) + * @returns 0 on success, a value less than 0 if timeout exceeded + */ +int LSCPServer::WaitUntilInitialized(long TimeoutSeconds, long TimeoutNanoSeconds) { + return Initialized.WaitAndUnlockIf(false, TimeoutSeconds, TimeoutNanoSeconds); } int LSCPServer::Main() { @@ -38,47 +102,259 @@ exit(EXIT_FAILURE); } - SocketAddress.sin_family = AF_INET; - SocketAddress.sin_port = htons(LSCP_PORT); - SocketAddress.sin_addr.s_addr = htonl(INADDR_ANY); - if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) { - std::cerr << "LSCPServer: Could not bind server socket." << std::endl; - close(hSocket); - //return -1; - exit(EXIT_FAILURE); + std::cerr << "LSCPServer: Could not bind server socket, retrying for " << ToString(LSCP_SERVER_BIND_TIMEOUT) << " seconds..."; + for (int trial = 0; true; trial++) { // retry for LSCP_SERVER_BIND_TIMEOUT seconds + if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) { + if (trial > LSCP_SERVER_BIND_TIMEOUT) { + std::cerr << "gave up!" << std::endl; + close(hSocket); + //return -1; + exit(EXIT_FAILURE); + } + else sleep(1); // sleep 1s + } + else break; // success + } } listen(hSocket, 1); - dmsg(1,("LSCPServer: Server running.\n")); // server running + Initialized.Set(true); // now wait for client connections and handle their requests sockaddr_in client; int length = sizeof(client); + FD_ZERO(&fdSet); + FD_SET(hSocket, &fdSet); + int maxSessions = hSocket; + while (true) { - hSession = accept(hSocket, (sockaddr*) &client, (socklen_t*) &length); - if (hSession < 0) { - std::cerr << "LSCPServer: Client connection failed." << std::endl; - close(hSocket); - //return -1; - exit(EXIT_FAILURE); - } - - dmsg(1,("LSCPServer: Client connection established.\n")); - //send(hSession, "Welcome!\r\n", 10, 0); - - // Parser invocation - yyparse_param_t yyparse_param; - yyparse_param.pServer = this; - yylex_init(&yyparse_param.pScanner); - while (yyparse(&yyparse_param) == LSCP_SYNTAX_ERROR); // recall parser in case of syntax error - yylex_destroy(yyparse_param.pScanner); + fd_set selectSet = fdSet; + int retval = select(maxSessions+1, &selectSet, NULL, NULL, NULL); + if (retval == 0) + continue; //Nothing try again + if (retval == -1) { + std::cerr << "LSCPServer: Socket select error." << std::endl; + close(hSocket); + exit(EXIT_FAILURE); + } + + //Accept new connections now (if any) + if (FD_ISSET(hSocket, &selectSet)) { + int socket = accept(hSocket, (sockaddr*) &client, (socklen_t*) &length); + if (socket < 0) { + std::cerr << "LSCPServer: Client connection failed." << std::endl; + exit(EXIT_FAILURE); + } + + if (fcntl(socket, F_SETFL, O_NONBLOCK)) { + std::cerr << "LSCPServer: F_SETFL O_NONBLOCK failed." << std::endl; + exit(EXIT_FAILURE); + } + + // Parser initialization + yyparse_param_t yyparse_param; + yyparse_param.pServer = this; + yyparse_param.hSession = socket; + + Sessions.push_back(yyparse_param); + FD_SET(socket, &fdSet); + if (socket > maxSessions) + maxSessions = socket; + dmsg(1,("LSCPServer: Client connection established on socket:%d.\n", socket)); + LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Client connection established on socket", socket)); + continue; //Maybe this was the only selected socket, better select again + } + + //Something was selected and it was not the hSocket, so it must be some command(s) coming. + for (std::vector::iterator iter = Sessions.begin(); iter != Sessions.end(); iter++) { + if (FD_ISSET((*iter).hSession, &selectSet)) { //Was it this socket? + if (GetLSCPCommand(iter)) { //Have we read the entire command? + dmsg(3,("LSCPServer: Got command on socket %d, calling parser.\n", currentSocket)); + int dummy; // just a temporary hack to fulfill the restart() function prototype + restart(NULL, dummy); // restart the 'scanner' + currentSocket = (*iter).hSession; //a hack + dmsg(2,("LSCPServer: [%s]\n",bufferedCommands[currentSocket].c_str())); + if ((*iter).bVerbose) { // if echo mode enabled + AnswerClient(bufferedCommands[currentSocket]); + } + int result = yyparse(&(*iter)); + currentSocket = -1; //continuation of a hack + dmsg(3,("LSCPServer: Done parsing on socket %d.\n", currentSocket)); + if (result == LSCP_QUIT) { //Was it a quit command by any chance? + CloseConnection(iter); + } + } + //socket may have been closed, iter may be invalid, get out of the loop for now. + //we'll be back if there is data. + break; + } + } + + // check if some engine channel's parameter / status changed, if so notify the respective LSCP event subscribers + { + std::set engineChannels = EngineChannelFactory::EngineChannelInstances(); + std::set::iterator itEngineChannel = engineChannels.begin(); + std::set::iterator itEnd = engineChannels.end(); + for (; itEngineChannel != itEnd; ++itEngineChannel) { + if ((*itEngineChannel)->StatusChanged()) { + SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_info, (*itEngineChannel)->iSamplerChannelIndex)); + } + } + } - close(hSession); - dmsg(1,("LSCPServer: Client connection terminated.\n")); + //Now let's deliver late notifies (if any) + NotifyBufferMutex.Lock(); + for (std::map::iterator iterNotify = bufferedNotifies.begin(); iterNotify != bufferedNotifies.end(); iterNotify++) { + send(iterNotify->first, iterNotify->second.c_str(), iterNotify->second.size(), MSG_NOSIGNAL); + bufferedNotifies.erase(iterNotify); + } + NotifyBufferMutex.Unlock(); } } +void LSCPServer::CloseConnection( std::vector::iterator iter ) { + int socket = (*iter).hSession; + dmsg(1,("LSCPServer: Client connection terminated on socket:%d.\n",socket)); + LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Client connection terminated on socket", socket)); + Sessions.erase(iter); + FD_CLR(socket, &fdSet); + SubscriptionMutex.Lock(); //Must unsubscribe this socket from all events (if any) + for (std::map< LSCPEvent::event_t, std::list >::iterator iter = eventSubscriptions.begin(); iter != eventSubscriptions.end(); iter++) { + iter->second.remove(socket); + } + SubscriptionMutex.Unlock(); + NotifyMutex.Lock(); + bufferedCommands.erase(socket); + bufferedNotifies.erase(socket); + close(socket); + NotifyMutex.Unlock(); +} + +int LSCPServer::EventSubscribers( std::list events ) { + int subs = 0; + SubscriptionMutex.Lock(); + for( std::list::iterator iter = events.begin(); + iter != events.end(); iter++) + { + subs += eventSubscriptions.count(*iter); + } + SubscriptionMutex.Unlock(); + return subs; +} + +void LSCPServer::SendLSCPNotify( LSCPEvent event ) { + SubscriptionMutex.Lock(); + if (eventSubscriptions.count(event.GetType()) == 0) { + SubscriptionMutex.Unlock(); //Nobody is subscribed to this event + return; + } + std::list::iterator iter = eventSubscriptions[event.GetType()].begin(); + std::list::iterator end = eventSubscriptions[event.GetType()].end(); + String notify = event.Produce(); + + while (true) { + if (NotifyMutex.Trylock()) { + for(;iter != end; iter++) + send(*iter, notify.c_str(), notify.size(), MSG_NOSIGNAL); + NotifyMutex.Unlock(); + break; + } else { + if (NotifyBufferMutex.Trylock()) { + for(;iter != end; iter++) + bufferedNotifies[*iter] += notify; + NotifyBufferMutex.Unlock(); + break; + } + } + } + SubscriptionMutex.Unlock(); +} + +extern int GetLSCPCommand( void *buf, int max_size ) { + String command = LSCPServer::bufferedCommands[LSCPServer::currentSocket]; + if (command.size() == 0) { //Parser wants input but we have nothing. + strcpy((char*) buf, "\n"); //So give it an empty command + return 1; //to keep it happy. + } + + if (max_size < command.size()) { + std::cerr << "getLSCPCommand: Flex buffer too small, ignoring the command." << std::endl; + return 0; //This will never happen + } + + strcpy((char*) buf, command.c_str()); + LSCPServer::bufferedCommands.erase(LSCPServer::currentSocket); + return command.size(); +} + +/** + * Will be called to try to read the command from the socket + * If command is read, it will return true. Otherwise false is returned. + * In any case the received portion (complete or incomplete) is saved into bufferedCommand map. + */ +bool LSCPServer::GetLSCPCommand( std::vector::iterator iter ) { + int socket = (*iter).hSession; + char c; + int i = 0; + while (true) { + int result = recv(socket, (void *)&c, 1, 0); //Read one character at a time for now + if (result == 0) { //socket was selected, so 0 here means client has closed the connection + CloseConnection(iter); + break; + } + if (result == 1) { + if (c == '\r') + continue; //Ignore CR + if (c == '\n') { + LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Received \'" + bufferedCommands[socket] + "\' on socket", socket)); + bufferedCommands[socket] += "\n"; + return true; //Complete command was read + } + bufferedCommands[socket] += c; + } + if (result == -1) { + if (errno == EAGAIN) //Would block, try again later. + return false; + switch(errno) { + case EBADF: + dmsg(2,("LSCPScanner: The argument s is an invalid descriptor.\n")); + break; + case ECONNREFUSED: + dmsg(2,("LSCPScanner: A remote host refused to allow the network connection (typically because it is not running the requested service).\n")); + break; + case ENOTCONN: + dmsg(2,("LSCPScanner: The socket is associated with a connection-oriented protocol and has not been connected (see connect(2) and accept(2)).\n")); + break; + case ENOTSOCK: + dmsg(2,("LSCPScanner: The argument s does not refer to a socket.\n")); + break; + case EAGAIN: + dmsg(2,("LSCPScanner: The socket is marked non-blocking and the receive operation would block, or a receive timeout had been set and the timeout expired before data was received.\n")); + break; + case EINTR: + dmsg(2,("LSCPScanner: The receive was interrupted by delivery of a signal before any data were available.\n")); + break; + case EFAULT: + dmsg(2,("LSCPScanner: The receive buffer pointer(s) point outside the process's address space.\n")); + break; + case EINVAL: + dmsg(2,("LSCPScanner: Invalid argument passed.\n")); + break; + case ENOMEM: + dmsg(2,("LSCPScanner: Could not allocate memory for recvmsg.\n")); + break; + default: + dmsg(2,("LSCPScanner: Unknown recv() error.\n")); + break; + } + CloseConnection(iter); + break; + } + } + return false; +} + /** * Will be called by the parser whenever it wants to send an answer to the * client / frontend. @@ -87,7 +363,43 @@ */ void LSCPServer::AnswerClient(String ReturnMessage) { dmsg(2,("LSCPServer::AnswerClient(ReturnMessage=%s)", ReturnMessage.c_str())); - send(hSession, ReturnMessage.c_str(), ReturnMessage.size(), 0); + if (currentSocket != -1) { + NotifyMutex.Lock(); + send(currentSocket, ReturnMessage.c_str(), ReturnMessage.size(), MSG_NOSIGNAL); + NotifyMutex.Unlock(); + } +} + +/** + * Find a created audio output device index. + */ +int LSCPServer::GetAudioOutputDeviceIndex ( AudioOutputDevice *pDevice ) +{ + // Search for the created device to get its index + std::map devices = pSampler->GetAudioOutputDevices(); + std::map::iterator iter = devices.begin(); + for (; iter != devices.end(); iter++) { + if (iter->second == pDevice) + return iter->first; + } + // Not found. + return -1; +} + +/** + * Find a created midi input device index. + */ +int LSCPServer::GetMidiInputDeviceIndex ( MidiInputDevice *pDevice ) +{ + // Search for the created device to get its index + std::map devices = pSampler->GetMidiInputDevices(); + std::map::iterator iter = devices.begin(); + for (; iter != devices.end(); iter++) { + if (iter->second == pDevice) + return iter->first; + } + // Not found. + return -1; } String LSCPServer::CreateAudioOutputDevice(String Driver, std::map Parameters) { @@ -95,16 +407,8 @@ LSCPResultSet result; try { AudioOutputDevice* pDevice = pSampler->CreateAudioOutputDevice(Driver, Parameters); - std::map devices = pSampler->GetAudioOutputDevices(); // search for the created device to get its index - int index = -1; - std::map::iterator iter = devices.begin(); - for (; iter != devices.end(); iter++) { - if (iter->second == pDevice) { - index = iter->first; - break; - } - } + int index = GetAudioOutputDeviceIndex(pDevice); if (index == -1) throw LinuxSamplerException("Internal error: could not find created audio output device."); result = index; // success } @@ -114,12 +418,28 @@ return result.Produce(); } +String LSCPServer::CreateMidiInputDevice(String Driver, std::map Parameters) { + dmsg(2,("LSCPServer: CreateMidiInputDevice(Driver=%s)\n", Driver.c_str())); + LSCPResultSet result; + try { + MidiInputDevice* pDevice = pSampler->CreateMidiInputDevice(Driver, Parameters); + // search for the created device to get its index + int index = GetMidiInputDeviceIndex(pDevice); + if (index == -1) throw LinuxSamplerException("Internal error: could not find created midi input device."); + result = index; // success + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + String LSCPServer::DestroyAudioOutputDevice(uint DeviceIndex) { dmsg(2,("LSCPServer: DestroyAudioOutputDevice(DeviceIndex=%d)\n", DeviceIndex)); LSCPResultSet result; try { std::map devices = pSampler->GetAudioOutputDevices(); - if (!devices[DeviceIndex]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + "."); + if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + "."); AudioOutputDevice* pDevice = devices[DeviceIndex]; pSampler->DestroyAudioOutputDevice(pDevice); } @@ -129,18 +449,43 @@ return result.Produce(); } +String LSCPServer::DestroyMidiInputDevice(uint DeviceIndex) { + dmsg(2,("LSCPServer: DestroyMidiInputDevice(DeviceIndex=%d)\n", DeviceIndex)); + LSCPResultSet result; + try { + std::map devices = pSampler->GetMidiInputDevices(); + if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + "."); + MidiInputDevice* pDevice = devices[DeviceIndex]; + pSampler->DestroyMidiInputDevice(pDevice); + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + /** * Will be called by the parser to load an instrument. */ -String LSCPServer::LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel) { +String LSCPServer::LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground) { dmsg(2,("LSCPServer: LoadInstrument(Filename=%s,Instrument=%d,SamplerChannel=%d)\n", Filename.c_str(), uiInstrument, uiSamplerChannel)); LSCPResultSet result; try { SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); - if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); - Engine* pEngine = pSamplerChannel->GetEngine(); - if (!pEngine) throw LinuxSamplerException("No engine loaded on channel"); - pEngine->LoadInstrument(Filename.c_str(), uiInstrument); + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel(); + if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel yet"); + if (!pSamplerChannel->GetAudioOutputDevice()) + throw LinuxSamplerException("No audio output device connected to sampler channel"); + if (bBackground) { + InstrumentLoader.StartNewLoad(Filename, uiInstrument, pEngineChannel); + } + else { + // tell the engine channel which instrument to load + pEngineChannel->PrepareLoadInstrument(Filename.c_str(), uiInstrument); + // actually start to load the instrument (blocks until completed) + pEngineChannel->LoadInstrument(); + } } catch (LinuxSamplerException e) { result.Error(e); @@ -149,18 +494,19 @@ } /** - * Will be called by the parser to load and deploy an engine. + * Will be called by the parser to assign a sampler engine type to a + * sampler channel. */ -String LSCPServer::LoadEngine(String EngineName, uint uiSamplerChannel) { - dmsg(2,("LSCPServer: LoadEngine(EngineName=%s,SamplerChannel=%d)\n", EngineName.c_str(), uiSamplerChannel)); +String LSCPServer::SetEngineType(String EngineName, uint uiSamplerChannel) { + dmsg(2,("LSCPServer: SetEngineType(EngineName=%s,uiSamplerChannel=%d)\n", EngineName.c_str(), uiSamplerChannel)); LSCPResultSet result; try { - Engine::type_t type; - if ((EngineName == "GigEngine") || (EngineName == "gig")) type = Engine::type_gig; - else throw LinuxSamplerException("Unknown engine type"); SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); - if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); - pSamplerChannel->LoadEngine(type); + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + LockRTNotify(); + pSamplerChannel->SetEngineType(EngineName); + if(HasSoloChannel()) pSamplerChannel->GetEngineChannel()->SetMute(-1); + UnlockRTNotify(); } catch (LinuxSamplerException e) { result.Error(e); @@ -179,6 +525,23 @@ } /** + * Will be called by the parser to get the list of sampler channels. + */ +String LSCPServer::ListChannels() { + dmsg(2,("LSCPServer: ListChannels()\n")); + String list; + std::map channels = pSampler->GetSamplerChannels(); + std::map::iterator iter = channels.begin(); + for (; iter != channels.end(); iter++) { + if (list != "") list += ","; + list += ToString(iter->first); + } + LSCPResultSet result; + result.Add(list); + return result.Produce(); +} + +/** * Will be called by the parser to add a sampler channel. */ String LSCPServer::AddChannel() { @@ -194,33 +557,42 @@ String LSCPServer::RemoveChannel(uint uiSamplerChannel) { dmsg(2,("LSCPServer: RemoveChannel(SamplerChannel=%d)\n", uiSamplerChannel)); LSCPResultSet result; + LockRTNotify(); pSampler->RemoveSamplerChannel(uiSamplerChannel); + UnlockRTNotify(); return result.Produce(); } /** - * Will be called by the parser to get all available engines. + * Will be called by the parser to get the amount of all available engines. */ String LSCPServer::GetAvailableEngines() { dmsg(2,("LSCPServer: GetAvailableEngines()\n")); - LSCPResultSet result("GigEngine"); + LSCPResultSet result("1"); return result.Produce(); } /** - * Will be called by the parser to get descriptions for a particular engine. + * Will be called by the parser to get a list of all available engines. + */ +String LSCPServer::ListAvailableEngines() { + dmsg(2,("LSCPServer: ListAvailableEngines()\n")); + LSCPResultSet result("\'GIG\'"); + return result.Produce(); +} + +/** + * Will be called by the parser to get descriptions for a particular + * sampler engine. */ String LSCPServer::GetEngineInfo(String EngineName) { dmsg(2,("LSCPServer: GetEngineInfo(EngineName=%s)\n", EngineName.c_str())); LSCPResultSet result; try { - if ((EngineName == "GigEngine") || (EngineName == "gig")) { - Engine* pEngine = new LinuxSampler::gig::Engine; - result.Add(pEngine->Description()); - result.Add(pEngine->Version()); - delete pEngine; - } - else throw LinuxSamplerException("Unknown engine type"); + Engine* pEngine = EngineFactory::Create(EngineName); + result.Add("DESCRIPTION", pEngine->Description()); + result.Add("VERSION", pEngine->Version()); + EngineFactory::Destroy(pEngine); } catch (LinuxSamplerException e) { result.Error(e); @@ -237,40 +609,58 @@ LSCPResultSet result; try { SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); - if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); - Engine* pEngine = pSamplerChannel->GetEngine(); + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel(); //Defaults values String EngineName = "NONE"; - float Volume = 0; + float Volume = 0.0f; String InstrumentFileName = "NONE"; - int InstrumentIndex = 0; - - if (pEngine) { - EngineName = pEngine->EngineName(); - Volume = pEngine->Volume(); - int iIdx = pEngine->InstrumentIndex(); - if (iIdx != -1) { - InstrumentFileName = pEngine->InstrumentFileName(); - InstrumentIndex = iIdx; + String InstrumentName = "NONE"; + int InstrumentIndex = -1; + int InstrumentStatus = -1; + int AudioOutputChannels = 0; + String AudioRouting; + int Mute = 0; + bool Solo = false; + + if (pEngineChannel) { + EngineName = pEngineChannel->EngineName(); + AudioOutputChannels = pEngineChannel->Channels(); + Volume = pEngineChannel->Volume(); + InstrumentStatus = pEngineChannel->InstrumentStatus(); + InstrumentIndex = pEngineChannel->InstrumentIndex(); + if (InstrumentIndex != -1) { + InstrumentFileName = pEngineChannel->InstrumentFileName(); + InstrumentName = pEngineChannel->InstrumentName(); + } + for (int chan = 0; chan < pEngineChannel->Channels(); chan++) { + if (AudioRouting != "") AudioRouting += ","; + AudioRouting += ToString(pEngineChannel->OutputChannel(chan)); } + Mute = pEngineChannel->GetMute(); + Solo = pEngineChannel->GetSolo(); } result.Add("ENGINE_NAME", EngineName); result.Add("VOLUME", Volume); - //Some hardcoded stuff for now to make GUI look good - result.Add("AUDIO_OUTPUT_DEVICE", "0"); - result.Add("AUDIO_OUTPUT_CHANNELS", "2"); - result.Add("AUDIO_OUTPUT_ROUTING", "0,1"); + //Some not-so-hardcoded stuff to make GUI look good + result.Add("AUDIO_OUTPUT_DEVICE", GetAudioOutputDeviceIndex(pSamplerChannel->GetAudioOutputDevice())); + result.Add("AUDIO_OUTPUT_CHANNELS", AudioOutputChannels); + result.Add("AUDIO_OUTPUT_ROUTING", AudioRouting); + + result.Add("MIDI_INPUT_DEVICE", GetMidiInputDeviceIndex(pSamplerChannel->GetMidiInputDevice())); + result.Add("MIDI_INPUT_PORT", pSamplerChannel->GetMidiInputPort()); + if (pSamplerChannel->GetMidiInputChannel() == midi_chan_all) result.Add("MIDI_INPUT_CHANNEL", "ALL"); + else result.Add("MIDI_INPUT_CHANNEL", pSamplerChannel->GetMidiInputChannel()); result.Add("INSTRUMENT_FILE", InstrumentFileName); result.Add("INSTRUMENT_NR", InstrumentIndex); - - //Some more hardcoded stuff for now to make GUI look good - result.Add("MIDI_INPUT_DEVICE", "0"); - result.Add("MIDI_INPUT_PORT", "0"); - result.Add("MIDI_INPUT_CHANNEL", "1"); + result.Add("INSTRUMENT_NAME", InstrumentName); + result.Add("INSTRUMENT_STATUS", InstrumentStatus); + result.Add("MUTE", Mute == -1 ? "MUTED_BY_SOLO" : (Mute ? "true" : "false")); + result.Add("SOLO", Solo); } catch (LinuxSamplerException e) { result.Error(e); @@ -287,10 +677,11 @@ LSCPResultSet result; try { SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); - if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); - Engine* pEngine = pSamplerChannel->GetEngine(); - if (!pEngine) throw LinuxSamplerException("No engine loaded on channel"); - result.Add(pEngine->VoiceCount()); + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel(); + if (!pEngineChannel) throw LinuxSamplerException("No engine loaded on sampler channel"); + if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel"); + result.Add(pEngineChannel->GetEngine()->VoiceCount()); } catch (LinuxSamplerException e) { result.Error(e); @@ -307,10 +698,11 @@ LSCPResultSet result; try { SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); - if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); - Engine* pEngine = pSamplerChannel->GetEngine(); - if (!pEngine) throw LinuxSamplerException("No engine loaded on channel"); - result.Add(pEngine->DiskStreamCount()); + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel(); + if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel"); + if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel"); + result.Add(pEngineChannel->GetEngine()->DiskStreamCount()); } catch (LinuxSamplerException e) { result.Error(e); @@ -327,20 +719,23 @@ LSCPResultSet result; try { SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); - if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); - Engine* pEngine = pSamplerChannel->GetEngine(); - if (!pEngine) throw LinuxSamplerException("No engine loaded on channel"); - if (!pEngine->DiskStreamSupported()) return "NA\r\n"; //FIXME: Update resultset class to support "NA" - switch (ResponseType) { - case fill_response_bytes: - result.Add(pEngine->DiskStreamBufferFillBytes()); - break; - case fill_response_percentage: - result.Add(pEngine->DiskStreamBufferFillPercentage()); - break; - default: - throw LinuxSamplerException("Unknown fill response type"); - } + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel(); + if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel"); + if (!pEngineChannel->GetEngine()) throw LinuxSamplerException("No audio output device connected to sampler channel"); + if (!pEngineChannel->GetEngine()->DiskStreamSupported()) result.Add("NA"); + else { + switch (ResponseType) { + case fill_response_bytes: + result.Add(pEngineChannel->GetEngine()->DiskStreamBufferFillBytes()); + break; + case fill_response_percentage: + result.Add(pEngineChannel->GetEngine()->DiskStreamBufferFillPercentage()); + break; + default: + throw LinuxSamplerException("Unknown fill response type"); + } + } } catch (LinuxSamplerException e) { result.Error(e); @@ -352,6 +747,19 @@ dmsg(2,("LSCPServer: GetAvailableAudioOutputDrivers()\n")); LSCPResultSet result; try { + int n = AudioOutputDeviceFactory::AvailableDrivers().size(); + result.Add(n); + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + +String LSCPServer::ListAvailableAudioOutputDrivers() { + dmsg(2,("LSCPServer: ListAvailableAudioOutputDrivers()\n")); + LSCPResultSet result; + try { String s = AudioOutputDeviceFactory::AvailableDriversAsString(); result.Add(s); } @@ -361,6 +769,56 @@ return result.Produce(); } +String LSCPServer::GetAvailableMidiInputDrivers() { + dmsg(2,("LSCPServer: GetAvailableMidiInputDrivers()\n")); + LSCPResultSet result; + try { + int n = MidiInputDeviceFactory::AvailableDrivers().size(); + result.Add(n); + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + +String LSCPServer::ListAvailableMidiInputDrivers() { + dmsg(2,("LSCPServer: ListAvailableMidiInputDrivers()\n")); + LSCPResultSet result; + try { + String s = MidiInputDeviceFactory::AvailableDriversAsString(); + result.Add(s); + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + +String LSCPServer::GetMidiInputDriverInfo(String Driver) { + dmsg(2,("LSCPServer: GetMidiInputDriverInfo(Driver=%s)\n",Driver.c_str())); + LSCPResultSet result; + try { + result.Add("DESCRIPTION", MidiInputDeviceFactory::GetDriverDescription(Driver)); + result.Add("VERSION", MidiInputDeviceFactory::GetDriverVersion(Driver)); + + std::map parameters = MidiInputDeviceFactory::GetAvailableDriverParameters(Driver); + if (parameters.size()) { // if there are parameters defined for this driver + String s; + std::map::iterator iter = parameters.begin(); + for (;iter != parameters.end(); iter++) { + if (s != "") s += ","; + s += iter->first; + } + result.Add("PARAMETERS", s); + } + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + String LSCPServer::GetAudioOutputDriverInfo(String Driver) { dmsg(2,("LSCPServer: GetAudioOutputDriverInfo(Driver=%s)\n",Driver.c_str())); LSCPResultSet result; @@ -385,8 +843,35 @@ return result.Produce(); } +String LSCPServer::GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map DependencyList) { + dmsg(2,("LSCPServer: GetMidiInputDriverParameterInfo(Driver=%s,Parameter=%s,DependencyListSize=%d)\n",Driver.c_str(),Parameter.c_str(),DependencyList.size())); + LSCPResultSet result; + try { + DeviceCreationParameter* pParameter = MidiInputDeviceFactory::GetDriverParameter(Driver, Parameter); + result.Add("TYPE", pParameter->Type()); + result.Add("DESCRIPTION", pParameter->Description()); + result.Add("MANDATORY", pParameter->Mandatory()); + result.Add("FIX", pParameter->Fix()); + result.Add("MULTIPLICITY", pParameter->Multiplicity()); + optional oDepends = pParameter->Depends(); + optional oDefault = pParameter->Default(DependencyList); + optional oRangeMin = pParameter->RangeMin(DependencyList); + optional oRangeMax = pParameter->RangeMax(DependencyList); + optional oPossibilities = pParameter->Possibilities(DependencyList); + if (oDepends) result.Add("DEPENDS", *oDepends); + if (oDefault) result.Add("DEFAULT", *oDefault); + if (oRangeMin) result.Add("RANGE_MIN", *oRangeMin); + if (oRangeMax) result.Add("RANGE_MAX", *oRangeMax); + if (oPossibilities) result.Add("POSSIBILITIES", *oPossibilities); + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + String LSCPServer::GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map DependencyList) { - dmsg(2,("LSCPServer: GetAudioOutputDriverParameterInfo(Driver=%s,Parameter=%s)\n",Driver.c_str(),Parameter.c_str())); + dmsg(2,("LSCPServer: GetAudioOutputDriverParameterInfo(Driver=%s,Parameter=%s,DependencyListSize=%d)\n",Driver.c_str(),Parameter.c_str(),DependencyList.size())); LSCPResultSet result; try { DeviceCreationParameter* pParameter = AudioOutputDeviceFactory::GetDriverParameter(Driver, Parameter); @@ -395,11 +880,16 @@ result.Add("MANDATORY", pParameter->Mandatory()); result.Add("FIX", pParameter->Fix()); result.Add("MULTIPLICITY", pParameter->Multiplicity()); - if (pParameter->Depends()) result.Add("DEPENDS", pParameter->Depends()); - if (pParameter->Default()) result.Add("DEFAULT", pParameter->Default()); - if (pParameter->RangeMin()) result.Add("RANGE_MIN", pParameter->RangeMin()); - if (pParameter->RangeMax()) result.Add("RANGE_MAX", pParameter->RangeMax()); - if (pParameter->Possibilities()) result.Add("POSSIBILITIES", pParameter->Possibilities()); + optional oDepends = pParameter->Depends(); + optional oDefault = pParameter->Default(DependencyList); + optional oRangeMin = pParameter->RangeMin(DependencyList); + optional oRangeMax = pParameter->RangeMax(DependencyList); + optional oPossibilities = pParameter->Possibilities(DependencyList); + if (oDepends) result.Add("DEPENDS", *oDepends); + if (oDefault) result.Add("DEFAULT", *oDefault); + if (oRangeMin) result.Add("RANGE_MIN", *oRangeMin); + if (oRangeMax) result.Add("RANGE_MAX", *oRangeMax); + if (oPossibilities) result.Add("POSSIBILITIES", *oPossibilities); } catch (LinuxSamplerException e) { result.Error(e); @@ -412,7 +902,20 @@ LSCPResultSet result; try { uint count = pSampler->AudioOutputDevices(); - result = count; // success + result.Add(count); // success + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + +String LSCPServer::GetMidiInputDeviceCount() { + dmsg(2,("LSCPServer: GetMidiInputDeviceCount()\n")); + LSCPResultSet result; + try { + uint count = pSampler->MidiInputDevices(); + result.Add(count); // success } catch (LinuxSamplerException e) { result.Error(e); @@ -439,13 +942,33 @@ return result.Produce(); } +String LSCPServer::GetMidiInputDevices() { + dmsg(2,("LSCPServer: GetMidiInputDevices()\n")); + LSCPResultSet result; + try { + String s; + std::map devices = pSampler->GetMidiInputDevices(); + std::map::iterator iter = devices.begin(); + for (; iter != devices.end(); iter++) { + if (s != "") s += ","; + s += ToString(iter->first); + } + result.Add(s); + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + String LSCPServer::GetAudioOutputDeviceInfo(uint DeviceIndex) { dmsg(2,("LSCPServer: GetAudioOutputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex)); LSCPResultSet result; try { std::map devices = pSampler->GetAudioOutputDevices(); - if (!devices[DeviceIndex]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + "."); + if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + "."); AudioOutputDevice* pDevice = devices[DeviceIndex]; + result.Add("DRIVER", pDevice->Driver()); std::map parameters = pDevice->DeviceParameters(); std::map::iterator iter = parameters.begin(); for (; iter != parameters.end(); iter++) { @@ -458,18 +981,63 @@ return result.Produce(); } +String LSCPServer::GetMidiInputDeviceInfo(uint DeviceIndex) { + dmsg(2,("LSCPServer: GetMidiInputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex)); + LSCPResultSet result; + try { + std::map devices = pSampler->GetMidiInputDevices(); + if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + "."); + MidiInputDevice* pDevice = devices[DeviceIndex]; + result.Add("DRIVER", pDevice->Driver()); + std::map parameters = pDevice->DeviceParameters(); + std::map::iterator iter = parameters.begin(); + for (; iter != parameters.end(); iter++) { + result.Add(iter->first, iter->second->Value()); + } + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} +String LSCPServer::GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex) { + dmsg(2,("LSCPServer: GetMidiInputPortInfo(DeviceIndex=%d, PortIndex=%d)\n",DeviceIndex, PortIndex)); + LSCPResultSet result; + try { + // get MIDI input device + std::map devices = pSampler->GetMidiInputDevices(); + if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + "."); + MidiInputDevice* pDevice = devices[DeviceIndex]; + + // get MIDI port + MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex); + if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + "."); + + // return the values of all MIDI port parameters + std::map parameters = pMidiInputPort->PortParameters(); + std::map::iterator iter = parameters.begin(); + for (; iter != parameters.end(); iter++) { + result.Add(iter->first, iter->second->Value()); + } + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + String LSCPServer::GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId) { dmsg(2,("LSCPServer: GetAudioOutputChannelInfo(DeviceId=%d,ChannelId)\n",DeviceId,ChannelId)); LSCPResultSet result; try { // get audio output device std::map devices = pSampler->GetAudioOutputDevices(); - if (!devices[DeviceId]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + "."); + if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + "."); AudioOutputDevice* pDevice = devices[DeviceId]; // get audio channel AudioChannel* pChannel = pDevice->Channel(ChannelId); - if (!pChannel) throw LinuxSamplerException("Audio ouotput device does not have channel " + ToString(ChannelId) + "."); + if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + "."); // return the values of all audio channel parameters std::map parameters = pChannel->ChannelParameters(); @@ -484,22 +1052,55 @@ return result.Produce(); } +String LSCPServer::GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName) { + dmsg(2,("LSCPServer: GetMidiInputPortParameterInfo(DeviceId=%d,PortId=%d,ParameterName=%s)\n",DeviceId,PortId,ParameterName.c_str())); + LSCPResultSet result; + try { + // get MIDI input device + std::map devices = pSampler->GetMidiInputDevices(); + if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no midi input device with index " + ToString(DeviceId) + "."); + MidiInputDevice* pDevice = devices[DeviceId]; + + // get midi port + MidiInputPort* pPort = pDevice->GetPort(PortId); + if (!pPort) throw LinuxSamplerException("Midi input device does not have port " + ToString(PortId) + "."); + + // get desired port parameter + std::map parameters = pPort->PortParameters(); + if (!parameters.count(ParameterName)) throw LinuxSamplerException("Midi port does not provide a parameter '" + ParameterName + "'."); + DeviceRuntimeParameter* pParameter = parameters[ParameterName]; + + // return all fields of this audio channel parameter + result.Add("TYPE", pParameter->Type()); + result.Add("DESCRIPTION", pParameter->Description()); + result.Add("FIX", pParameter->Fix()); + result.Add("MULTIPLICITY", pParameter->Multiplicity()); + if (pParameter->RangeMin()) result.Add("RANGE_MIN", *pParameter->RangeMin()); + if (pParameter->RangeMax()) result.Add("RANGE_MAX", *pParameter->RangeMax()); + if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities()); + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + String LSCPServer::GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName) { dmsg(2,("LSCPServer: GetAudioOutputChannelParameterInfo(DeviceId=%d,ChannelId=%d,ParameterName=%s)\n",DeviceId,ChannelId,ParameterName.c_str())); LSCPResultSet result; try { // get audio output device std::map devices = pSampler->GetAudioOutputDevices(); - if (!devices[DeviceId]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + "."); + if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + "."); AudioOutputDevice* pDevice = devices[DeviceId]; // get audio channel AudioChannel* pChannel = pDevice->Channel(ChannelId); - if (!pChannel) throw LinuxSamplerException("Audio output device does not have channel " + ToString(ChannelId) + "."); + if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + "."); // get desired audio channel parameter std::map parameters = pChannel->ChannelParameters(); - if (!parameters[ParameterName]) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParameterName + "'."); + if (!parameters.count(ParameterName)) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParameterName + "'."); DeviceRuntimeParameter* pParameter = parameters[ParameterName]; // return all fields of this audio channel parameter @@ -507,9 +1108,9 @@ result.Add("DESCRIPTION", pParameter->Description()); result.Add("FIX", pParameter->Fix()); result.Add("MULTIPLICITY", pParameter->Multiplicity()); - if (pParameter->RangeMin()) result.Add("RANGE_MIN", pParameter->RangeMin()); - if (pParameter->RangeMax()) result.Add("RANGE_MAX", pParameter->RangeMax()); - if (pParameter->Possibilities()) result.Add("POSSIBILITIES", pParameter->Possibilities()); + if (pParameter->RangeMin()) result.Add("RANGE_MIN", *pParameter->RangeMin()); + if (pParameter->RangeMax()) result.Add("RANGE_MAX", *pParameter->RangeMax()); + if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities()); } catch (LinuxSamplerException e) { result.Error(e); @@ -523,16 +1124,16 @@ try { // get audio output device std::map devices = pSampler->GetAudioOutputDevices(); - if (!devices[DeviceId]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + "."); + if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + "."); AudioOutputDevice* pDevice = devices[DeviceId]; // get audio channel AudioChannel* pChannel = pDevice->Channel(ChannelId); - if (!pChannel) throw LinuxSamplerException("Audio output device does not have channel " + ToString(ChannelId) + "."); + if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + "."); // get desired audio channel parameter std::map parameters = pChannel->ChannelParameters(); - if (!parameters[ParamKey]) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParamKey + "'."); + if (!parameters.count(ParamKey)) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParamKey + "'."); DeviceRuntimeParameter* pParameter = parameters[ParamKey]; // set new channel parameter value @@ -549,10 +1150,51 @@ LSCPResultSet result; try { std::map devices = pSampler->GetAudioOutputDevices(); - if (!devices[DeviceIndex]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + "."); + if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + "."); AudioOutputDevice* pDevice = devices[DeviceIndex]; std::map parameters = pDevice->DeviceParameters(); - if (!parameters[ParamKey]) throw LinuxSamplerException("Audio output device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'"); + if (!parameters.count(ParamKey)) throw LinuxSamplerException("Audio output device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'"); + parameters[ParamKey]->SetValue(ParamVal); + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + +String LSCPServer::SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal) { + dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str())); + LSCPResultSet result; + try { + std::map devices = pSampler->GetMidiInputDevices(); + if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + "."); + MidiInputDevice* pDevice = devices[DeviceIndex]; + std::map parameters = pDevice->DeviceParameters(); + if (!parameters.count(ParamKey)) throw LinuxSamplerException("MIDI input device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'"); + parameters[ParamKey]->SetValue(ParamVal); + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + +String LSCPServer::SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal) { + dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str())); + LSCPResultSet result; + try { + // get MIDI input device + std::map devices = pSampler->GetMidiInputDevices(); + if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + "."); + MidiInputDevice* pDevice = devices[DeviceIndex]; + + // get MIDI port + MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex); + if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + "."); + + // set port parameter value + std::map parameters = pMidiInputPort->PortParameters(); + if (!parameters.count(ParamKey)) throw LinuxSamplerException("MIDI input device " + ToString(PortIndex) + " does not have a parameter '" + ParamKey + "'"); parameters[ParamKey]->SetValue(ParamVal); } catch (LinuxSamplerException e) { @@ -567,19 +1209,31 @@ */ String LSCPServer::SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel) { dmsg(2,("LSCPServer: SetAudioOutputChannel(ChannelAudioOutputChannel=%d, AudioOutputDeviceInputChannel=%d, SamplerChannel=%d)\n",ChannelAudioOutputChannel,AudioOutputDeviceInputChannel,uiSamplerChannel)); - return "ERR:0:Not implemented yet.\r\n"; //FIXME: Add support for this in resultset class? + LSCPResultSet result; + try { + SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel(); + if (!pEngineChannel) throw LinuxSamplerException("No engine type yet assigned to sampler channel " + ToString(uiSamplerChannel)); + if (!pSamplerChannel->GetAudioOutputDevice()) throw LinuxSamplerException("No audio output device connected to sampler channel " + ToString(uiSamplerChannel)); + pEngineChannel->SetOutputChannel(ChannelAudioOutputChannel, AudioOutputDeviceInputChannel); + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); } -String LSCPServer::SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel) { - dmsg(2,("LSCPServer: SetMIDIInputType(String MidiInputDriver=%s, SamplerChannel=%d)\n",MidiInputDriver.c_str(),uiSamplerChannel)); +String LSCPServer::SetAudioOutputDevice(uint AudioDeviceId, uint uiSamplerChannel) { + dmsg(2,("LSCPServer: SetAudiotOutputDevice(AudioDeviceId=%d, SamplerChannel=%d)\n",AudioDeviceId,uiSamplerChannel)); LSCPResultSet result; try { SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); - if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); - // FIXME: workaround until MIDI driver configuration is implemented (using a Factory class for the MIDI input drivers then, like its already done for audio output drivers) - if (MidiInputDriver != "ALSA") throw LinuxSamplerException("Unknown MIDI input driver '" + MidiInputDriver + "'."); - MidiInputDevice::type_t MidiInputType = MidiInputDevice::type_alsa; - pSamplerChannel->SetMidiInputDevice(MidiInputType); + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + std::map devices = pSampler->GetAudioOutputDevices(); + if (!devices.count(AudioDeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(AudioDeviceId)); + AudioOutputDevice* pDevice = devices[AudioDeviceId]; + pSamplerChannel->SetAudioOutputDevice(pDevice); } catch (LinuxSamplerException e) { result.Error(e); @@ -587,18 +1241,50 @@ return result.Produce(); } -/** - * Will be called by the parser to change the MIDI input port on which the - * engine of a particular sampler channel should listen to. - */ -String LSCPServer::SetMIDIInputPort(String MIDIInputPort, uint uiSamplerChannel) { - dmsg(2,("LSCPServer: SetMIDIInputPort(MIDIInputPort=%s, Samplerchannel=%d)\n", MIDIInputPort.c_str(), uiSamplerChannel)); +String LSCPServer::SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel) { + dmsg(2,("LSCPServer: SetAudioOutputType(String AudioOutputDriver=%s, SamplerChannel=%d)\n",AudioOutputDriver.c_str(),uiSamplerChannel)); LSCPResultSet result; try { SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); - if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); - if (!pSamplerChannel->GetMidiInputDevice()) throw LinuxSamplerException("No MIDI input device connected yet"); - pSamplerChannel->GetMidiInputDevice()->SetInputPort(MIDIInputPort.c_str()); + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + // Driver type name aliasing... + if (AudioOutputDriver == "Alsa") AudioOutputDriver = "ALSA"; + if (AudioOutputDriver == "Jack") AudioOutputDriver = "JACK"; + // Check if there's one audio output device already created + // for the intended audio driver type (AudioOutputDriver)... + AudioOutputDevice *pDevice = NULL; + std::map devices = pSampler->GetAudioOutputDevices(); + std::map::iterator iter = devices.begin(); + for (; iter != devices.end(); iter++) { + if ((iter->second)->Driver() == AudioOutputDriver) { + pDevice = iter->second; + break; + } + } + // If it doesn't exist, create a new one with default parameters... + if (pDevice == NULL) { + std::map params; + pDevice = pSampler->CreateAudioOutputDevice(AudioOutputDriver, params); + } + // Must have a device... + if (pDevice == NULL) + throw LinuxSamplerException("Internal error: could not create audio output device."); + // Set it as the current channel device... + pSamplerChannel->SetAudioOutputDevice(pDevice); + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + +String LSCPServer::SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel) { + dmsg(2,("LSCPServer: SetMIDIInputPort(MIDIPort=%d, SamplerChannel=%d)\n",MIDIPort,uiSamplerChannel)); + LSCPResultSet result; + try { + SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + pSamplerChannel->SetMidiInputPort(MIDIPort); } catch (LinuxSamplerException e) { result.Error(e); @@ -606,19 +1292,69 @@ return result.Produce(); } -/** - * Will be called by the parser to change the MIDI input channel on which the - * engine of a particular sampler channel should listen to. - */ String LSCPServer::SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel) { - dmsg(2,("LSCPServer: SetMIDIInputChannel(MIDIChannel=%d, SamplerChannel=%d)\n", MIDIChannel, uiSamplerChannel)); + dmsg(2,("LSCPServer: SetMIDIInputChannel(MIDIChannel=%d, SamplerChannel=%d)\n",MIDIChannel,uiSamplerChannel)); + LSCPResultSet result; + try { + SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + pSamplerChannel->SetMidiInputChannel((midi_chan_t) MIDIChannel); + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + +String LSCPServer::SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel) { + dmsg(2,("LSCPServer: SetMIDIInputDevice(MIDIDeviceId=%d, SamplerChannel=%d)\n",MIDIDeviceId,uiSamplerChannel)); + LSCPResultSet result; + try { + SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + std::map devices = pSampler->GetMidiInputDevices(); + if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId)); + MidiInputDevice* pDevice = devices[MIDIDeviceId]; + pSamplerChannel->SetMidiInputDevice(pDevice); + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + +String LSCPServer::SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel) { + dmsg(2,("LSCPServer: SetMIDIInputType(String MidiInputDriver=%s, SamplerChannel=%d)\n",MidiInputDriver.c_str(),uiSamplerChannel)); LSCPResultSet result; try { SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); - if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); - if (!pSamplerChannel->GetMidiInputDevice()) throw LinuxSamplerException("No MIDI input device connected yet"); - MidiInputDevice::type_t oldtype = pSamplerChannel->GetMidiInputDevice()->Type(); - pSamplerChannel->SetMidiInputDevice(oldtype, (MidiInputDevice::midi_chan_t) MIDIChannel); + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + // Driver type name aliasing... + if (MidiInputDriver == "Alsa") MidiInputDriver = "ALSA"; + // Check if there's one MIDI input device already created + // for the intended MIDI driver type (MidiInputDriver)... + MidiInputDevice *pDevice = NULL; + std::map devices = pSampler->GetMidiInputDevices(); + std::map::iterator iter = devices.begin(); + for (; iter != devices.end(); iter++) { + if ((iter->second)->Driver() == MidiInputDriver) { + pDevice = iter->second; + break; + } + } + // If it doesn't exist, create a new one with default parameters... + if (pDevice == NULL) { + std::map params; + pDevice = pSampler->CreateMidiInputDevice(MidiInputDriver, params); + // Make it with at least one initial port. + std::map parameters = pDevice->DeviceParameters(); + parameters["PORTS"]->SetValue("1"); + } + // Must have a device... + if (pDevice == NULL) + throw LinuxSamplerException("Internal error: could not create MIDI input device."); + // Set it as the current channel device... + pSamplerChannel->SetMidiInputDevice(pDevice); } catch (LinuxSamplerException e) { result.Error(e); @@ -626,10 +1362,20 @@ return result.Produce(); } -String LSCPServer::SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel) { +/** + * Will be called by the parser to change the MIDI input device, port and channel on which + * engine of a particular sampler channel should listen to. + */ +String LSCPServer::SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel) { + dmsg(2,("LSCPServer: SetMIDIInput(MIDIDeviceId=%d, MIDIPort=%d, MIDIChannel=%d, SamplerChannel=%d)\n", MIDIDeviceId, MIDIPort, MIDIChannel, uiSamplerChannel)); LSCPResultSet result; try { - throw LinuxSamplerException("Command not yet implemented"); + SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + std::map devices = pSampler->GetMidiInputDevices(); + if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId)); + MidiInputDevice* pDevice = devices[MIDIDeviceId]; + pSamplerChannel->SetMidiInput(pDevice, MIDIPort, (midi_chan_t) MIDIChannel); } catch (LinuxSamplerException e) { result.Error(e); @@ -641,15 +1387,15 @@ * Will be called by the parser to change the global volume factor on a * particular sampler channel. */ -String LSCPServer::SetVolume(double Volume, uint uiSamplerChannel) { - dmsg(2,("LSCPServer: SetVolume(Volume=%f, SamplerChannel=%d)\n", Volume, uiSamplerChannel)); +String LSCPServer::SetVolume(double dVolume, uint uiSamplerChannel) { + dmsg(2,("LSCPServer: SetVolume(Volume=%f, SamplerChannel=%d)\n", dVolume, uiSamplerChannel)); LSCPResultSet result; try { SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); - if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); - Engine* pEngine = pSamplerChannel->GetEngine(); - if (!pEngine) throw LinuxSamplerException("No engine loaded on channel"); - pEngine->Volume(Volume); + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel(); + if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel"); + pEngineChannel->Volume(dVolume); } catch (LinuxSamplerException e) { result.Error(e); @@ -658,6 +1404,107 @@ } /** + * Will be called by the parser to mute/unmute particular sampler channel. + */ +String LSCPServer::SetChannelMute(bool bMute, uint uiSamplerChannel) { + dmsg(2,("LSCPServer: SetChannelMute(bMute=%d,uiSamplerChannel=%d)\n",bMute,uiSamplerChannel)); + LSCPResultSet result; + try { + SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + + EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel(); + if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel"); + + if(!bMute) pEngineChannel->SetMute((HasSoloChannel() && !pEngineChannel->GetSolo()) ? -1 : 0); + else pEngineChannel->SetMute(1); + } catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + +/** + * Will be called by the parser to solo particular sampler channel. + */ +String LSCPServer::SetChannelSolo(bool bSolo, uint uiSamplerChannel) { + dmsg(2,("LSCPServer: SetChannelSolo(bSolo=%d,uiSamplerChannel=%d)\n",bSolo,uiSamplerChannel)); + LSCPResultSet result; + try { + SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + + EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel(); + if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel"); + + bool oldSolo = pEngineChannel->GetSolo(); + bool hadSoloChannel = HasSoloChannel(); + + pEngineChannel->SetSolo(bSolo); + + if(!oldSolo && bSolo) { + if(pEngineChannel->GetMute() == -1) pEngineChannel->SetMute(0); + if(!hadSoloChannel) MuteNonSoloChannels(); + } + + if(oldSolo && !bSolo) { + if(!HasSoloChannel()) UnmuteChannels(); + else if(!pEngineChannel->GetMute()) pEngineChannel->SetMute(-1); + } + } catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); +} + +/** + * Determines whether there is at least one solo channel in the channel list. + * + * @returns true if there is at least one solo channel in the channel list, + * false otherwise. + */ +bool LSCPServer::HasSoloChannel() { + std::map channels = pSampler->GetSamplerChannels(); + std::map::iterator iter = channels.begin(); + for (; iter != channels.end(); iter++) { + EngineChannel* c = iter->second->GetEngineChannel(); + if(c && c->GetSolo()) return true; + } + + return false; +} + +/** + * Mutes all unmuted non-solo channels. Notice that the channels are muted + * with -1 which indicates that they are muted because of the presence + * of a solo channel(s). Channels muted with -1 will be automatically unmuted + * when there are no solo channels left. + */ +void LSCPServer::MuteNonSoloChannels() { + dmsg(2,("LSCPServer: MuteNonSoloChannels()\n")); + std::map channels = pSampler->GetSamplerChannels(); + std::map::iterator iter = channels.begin(); + for (; iter != channels.end(); iter++) { + EngineChannel* c = iter->second->GetEngineChannel(); + if(c && !c->GetSolo() && !c->GetMute()) c->SetMute(-1); + } +} + +/** + * Unmutes all channels that are muted because of the presence + * of a solo channel(s). + */ +void LSCPServer::UnmuteChannels() { + dmsg(2,("LSCPServer: UnmuteChannels()\n")); + std::map channels = pSampler->GetSamplerChannels(); + std::map::iterator iter = channels.begin(); + for (; iter != channels.end(); iter++) { + EngineChannel* c = iter->second->GetEngineChannel(); + if(c && c->GetMute() == -1) c->SetMute(0); + } +} + +/** * Will be called by the parser to reset a particular sampler channel. */ String LSCPServer::ResetChannel(uint uiSamplerChannel) { @@ -665,10 +1512,10 @@ LSCPResultSet result; try { SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); - if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); - Engine* pEngine = pSamplerChannel->GetEngine(); - if (!pEngine) throw LinuxSamplerException("No engine loaded on channel"); - pEngine->Reset(); + if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel)); + EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel(); + if (!pEngineChannel) throw LinuxSamplerException("No engine type assigned to sampler channel"); + pEngineChannel->Reset(); } catch (LinuxSamplerException e) { result.Error(e); @@ -677,19 +1524,120 @@ } /** + * Will be called by the parser to reset the whole sampler. + */ +String LSCPServer::ResetSampler() { + dmsg(2,("LSCPServer: ResetSampler()\n")); + pSampler->Reset(); + LSCPResultSet result; + return result.Produce(); +} + +/** + * Will be called by the parser to return general informations about this + * sampler. + */ +String LSCPServer::GetServerInfo() { + dmsg(2,("LSCPServer: GetServerInfo()\n")); + LSCPResultSet result; + result.Add("DESCRIPTION", "LinuxSampler - modular, streaming capable sampler"); + result.Add("VERSION", VERSION); + result.Add("PROTOCOL_VERSION", "1.0"); + return result.Produce(); +} + +/** + * Will be called by the parser to return the current number of all active voices. + */ +String LSCPServer::GetTotalVoiceCount() { + dmsg(2,("LSCPServer: GetTotalVoiceCount()\n")); + LSCPResultSet result; + result.Add(pSampler->GetVoiceCount()); + return result.Produce(); +} + +/** + * Will be called by the parser to return the maximum number of voices. + */ +String LSCPServer::GetTotalVoiceCountMax() { + dmsg(2,("LSCPServer: GetTotalVoiceCountMax()\n")); + LSCPResultSet result; + result.Add(EngineFactory::EngineInstances().size() * CONFIG_MAX_VOICES); + return result.Produce(); +} + +/** * Will be called by the parser to subscribe a client (frontend) on the * server for receiving event messages. */ -String LSCPServer::SubscribeNotification(uint UDPPort) { - dmsg(2,("LSCPServer: SubscribeNotification(UDPPort=%d)\n", UDPPort)); - return "ERR:0:Not implemented yet.\r\n"; +String LSCPServer::SubscribeNotification(LSCPEvent::event_t type) { + dmsg(2,("LSCPServer: SubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str())); + LSCPResultSet result; + SubscriptionMutex.Lock(); + eventSubscriptions[type].push_back(currentSocket); + SubscriptionMutex.Unlock(); + return result.Produce(); } /** * Will be called by the parser to unsubscribe a client on the server * for not receiving further event messages. */ -String LSCPServer::UnsubscribeNotification(String SessionID) { - dmsg(2,("LSCPServer: UnsubscribeNotification(SessionID=%s)\n", SessionID.c_str())); - return "ERR:0:Not implemented yet.\r\n"; +String LSCPServer::UnsubscribeNotification(LSCPEvent::event_t type) { + dmsg(2,("LSCPServer: UnsubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str())); + LSCPResultSet result; + SubscriptionMutex.Lock(); + eventSubscriptions[type].remove(currentSocket); + SubscriptionMutex.Unlock(); + return result.Produce(); +} + +static int select_callback(void * lscpResultSet, int argc, + char **argv, char **azColName) +{ + LSCPResultSet* resultSet = (LSCPResultSet*) lscpResultSet; + resultSet->Add(argc, argv); + return 0; +} + +String LSCPServer::QueryDatabase(String query) { + LSCPResultSet result; +#if HAVE_SQLITE3 + char* zErrMsg = NULL; + sqlite3 *db; + String selectStr = "SELECT " + query; + + int rc = sqlite3_open("linuxsampler.db", &db); + if (rc == SQLITE_OK) + { + rc = sqlite3_exec(db, selectStr.c_str(), select_callback, &result, &zErrMsg); + } + if ( rc != SQLITE_OK ) + { + result.Error(String(zErrMsg), rc); + } + sqlite3_close(db); +#else + result.Error(String("SQLITE3 was not installed when linuxsampler was built. SELECT statement is not available."), 0); +#endif + return result.Produce(); +} + +/** + * Will be called by the parser to enable or disable echo mode; if echo + * mode is enabled, all commands from the client will (immediately) be + * echoed back to the client. + */ +String LSCPServer::SetEcho(yyparse_param_t* pSession, double boolean_value) { + dmsg(2,("LSCPServer: SetEcho(val=%f)\n", boolean_value)); + LSCPResultSet result; + try { + if (boolean_value == 0) pSession->bVerbose = false; + else if (boolean_value == 1) pSession->bVerbose = true; + else throw LinuxSamplerException("Not a boolean value, must either be 0 or 1"); + } + catch (LinuxSamplerException e) { + result.Error(e); + } + return result.Produce(); }