/[svn]/linuxsampler/trunk/src/network/lscpserver.cpp

Diff of /linuxsampler/trunk/src/network/lscpserver.cpp

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-revision 1350 by iliev,
Sun Sep 16 23:06:10 2007 UTC
+revision 1724 by schoenebeck,
Tue Apr 22 08:52:54 2008 UTC
 Line 3
   *   LinuxSampler - modular, streaming capable sampler                     *
   *                                                                         *
   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
-  *   Copyright (C) 2005 - 2007 Christian Schoenebeck                       *
+  *   Copyright (C) 2005 - 2008 Christian Schoenebeck                       *
   *                                                                         *
   *   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  *
 Line 21
   *   MA  02111-1307  USA                                                   *
   ***************************************************************************/
+ #include <algorithm>
  #include "lscpserver.h"
  #include "lscpresultset.h"
  #include "lscpevent.h"
+ #if defined(WIN32)
+ #include <windows.h>
+ #else
  #include <fcntl.h>
+ #endif
  #if ! HAVE_SQLITE3
  #define DOESNT_HAVE_SQLITE3 "No database support. SQLITE3 was not installed when linuxsampler was built."
-Line 36
+Line 42
  #include "../drivers/audio/AudioOutputDeviceFactory.h"
  #include "../drivers/midi/MidiInputDeviceFactory.h"
+ /**
+  * Returns a copy of the given string where all special characters are
+  * replaced by LSCP escape sequences ("\xHH"). This function shall be used
+  * to escape LSCP response fields in case the respective response field is
+  * actually defined as using escape sequences in the LSCP specs.
+  *
+  * @e Caution: DO NOT use this function for escaping path based responses,
+  * use the Path class (src/common/Path.h) for this instead!
+  */
+ static String _escapeLscpResponse(String txt) {
+     for (int i = 0; i < txt.length(); i++) {
+         const char c = txt.c_str()[i];
+         if (
+             !(c >= '0' && c <= '9') &&
+             !(c >= 'a' && c <= 'z') &&
+             !(c >= 'A' && c <= 'Z') &&
+             !(c == ' ') && !(c == '!') && !(c == '#') && !(c == '$') &&
+             !(c == '%') && !(c == '&') && !(c == '(') && !(c == ')') &&
+             !(c == '*') && !(c == '+') && !(c == ',') && !(c == '-') &&
+             !(c == '.') && !(c == '/') && !(c == ':') && !(c == ';') &&
+             !(c == '<') && !(c == '=') && !(c == '>') && !(c == '?') &&
+             !(c == '@') && !(c == '[') && !(c == ']') &&
+             !(c == '^') && !(c == '_') && !(c == '`') && !(c == '{') &&
+             !(c == '|') && !(c == '}') && !(c == '~')
+         ) {
+             // convert the "special" character into a "\xHH" LSCP escape sequence
+             char buf[5];
+             snprintf(buf, sizeof(buf), "\\x%02x", static_cast<unsigned char>(c));
+             txt.replace(i, 1, buf);
+             i += 3;
+         }
+     }
+     return txt;
+ }
  /**
   * Below are a few static members of the LSCPServer class.
   * The big assumption here is that LSCPServer is going to remain a singleton.
-Line 61 
 Mutex LSCPServer::NotifyBufferMutex = Mu
+Line 103 
 Mutex LSCPServer::NotifyBufferMutex = Mu
  Mutex LSCPServer::SubscriptionMutex = Mutex();
  Mutex LSCPServer::RTNotifyMutex = Mutex();
- LSCPServer::LSCPServer(Sampler* pSampler, long int addr, short int port) : Thread(true, false, 0, -4) {
+ LSCPServer::LSCPServer(Sampler* pSampler, long int addr, short int port) : Thread(true, false, 0, -4), eventHandler(this) {
      SocketAddress.sin_family      = AF_INET;
      SocketAddress.sin_addr.s_addr = addr;
      SocketAddress.sin_port        = port;
-Line 87 
 LSCPServer::LSCPServer(Sampler* pSampler
+Line 129 
 LSCPServer::LSCPServer(Sampler* pSampler
      LSCPEvent::RegisterEvent(LSCPEvent::event_db_instr_info, "DB_INSTRUMENT_INFO");
      LSCPEvent::RegisterEvent(LSCPEvent::event_db_instrs_job_info, "DB_INSTRUMENTS_JOB_INFO");
      LSCPEvent::RegisterEvent(LSCPEvent::event_misc, "MISCELLANEOUS");
+     LSCPEvent::RegisterEvent(LSCPEvent::event_total_stream_count, "TOTAL_STREAM_COUNT");
      LSCPEvent::RegisterEvent(LSCPEvent::event_total_voice_count, "TOTAL_VOICE_COUNT");
      LSCPEvent::RegisterEvent(LSCPEvent::event_global_info, "GLOBAL_INFO");
+     LSCPEvent::RegisterEvent(LSCPEvent::event_channel_midi, "CHANNEL_MIDI");
+     LSCPEvent::RegisterEvent(LSCPEvent::event_device_midi, "DEVICE_MIDI");
      hSocket = -1;
  }
  LSCPServer::~LSCPServer() {
+ #if defined(WIN32)
+     if (hSocket >= 0) closesocket(hSocket);
+ #else
      if (hSocket >= 0) close(hSocket);
+ #endif
+ }
+ LSCPServer::EventHandler::EventHandler(LSCPServer* pParent) {
+     this->pParent = pParent;
+ }
+ LSCPServer::EventHandler::~EventHandler() {
+     std::vector<midi_listener_entry> l = channelMidiListeners;
+     channelMidiListeners.clear();
+     for (int i = 0; i < l.size(); i++)
+         delete l[i].pMidiListener;
  }
  void LSCPServer::EventHandler::ChannelCountChanged(int NewCount) {
      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, NewCount));
  }
+ void LSCPServer::EventHandler::ChannelAdded(SamplerChannel* pChannel) {
+     pChannel->AddEngineChangeListener(this);
+ }
+ void LSCPServer::EventHandler::ChannelToBeRemoved(SamplerChannel* pChannel) {
+     if (!pChannel->GetEngineChannel()) return;
+     EngineToBeChanged(pChannel->Index());
+ }
+ void LSCPServer::EventHandler::EngineToBeChanged(int ChannelId) {
+     SamplerChannel* pSamplerChannel =
+         pParent->pSampler->GetSamplerChannel(ChannelId);
+     if (!pSamplerChannel) return;
+     EngineChannel* pEngineChannel =
+         pSamplerChannel->GetEngineChannel();
+     if (!pEngineChannel) return;
+     for (std::vector<midi_listener_entry>::iterator iter = channelMidiListeners.begin(); iter != channelMidiListeners.end(); ++iter) {
+         if ((*iter).pEngineChannel == pEngineChannel) {
+             VirtualMidiDevice* pMidiListener = (*iter).pMidiListener;
+             pEngineChannel->Disconnect(pMidiListener);
+             channelMidiListeners.erase(iter);
+             delete pMidiListener;
+             return;
+         }
+     }
+ }
+ void LSCPServer::EventHandler::EngineChanged(int ChannelId) {
+     SamplerChannel* pSamplerChannel =
+         pParent->pSampler->GetSamplerChannel(ChannelId);
+     if (!pSamplerChannel) return;
+     EngineChannel* pEngineChannel =
+         pSamplerChannel->GetEngineChannel();
+     if (!pEngineChannel) return;
+     VirtualMidiDevice* pMidiListener = new VirtualMidiDevice;
+     pEngineChannel->Connect(pMidiListener);
+     midi_listener_entry entry = {
+         pSamplerChannel, pEngineChannel, pMidiListener
+     };
+     channelMidiListeners.push_back(entry);
+ }
  void LSCPServer::EventHandler::AudioDeviceCountChanged(int NewCount) {
      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_audio_device_count, NewCount));
  }
-Line 108 
 void LSCPServer::EventHandler::MidiDevic
+Line 210 
 void LSCPServer::EventHandler::MidiDevic
      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_midi_device_count, NewCount));
  }
+ void LSCPServer::EventHandler::MidiDeviceToBeDestroyed(MidiInputDevice* pDevice) {
+     pDevice->RemoveMidiPortCountListener(this);
+     for (int i = 0; i < pDevice->PortCount(); ++i)
+         MidiPortToBeRemoved(pDevice->GetPort(i));
+ }
+ void LSCPServer::EventHandler::MidiDeviceCreated(MidiInputDevice* pDevice) {
+     pDevice->AddMidiPortCountListener(this);
+     for (int i = 0; i < pDevice->PortCount(); ++i)
+         MidiPortAdded(pDevice->GetPort(i));
+ }
+ void LSCPServer::EventHandler::MidiPortCountChanged(int NewCount) {
+     // yet unused
+ }
+ void LSCPServer::EventHandler::MidiPortToBeRemoved(MidiInputPort* pPort) {
+     for (std::vector<device_midi_listener_entry>::iterator iter = deviceMidiListeners.begin(); iter != deviceMidiListeners.end(); ++iter) {
+         if ((*iter).pPort == pPort) {
+             VirtualMidiDevice* pMidiListener = (*iter).pMidiListener;
+             pPort->Disconnect(pMidiListener);
+             deviceMidiListeners.erase(iter);
+             delete pMidiListener;
+             return;
+         }
+     }
+ }
+ void LSCPServer::EventHandler::MidiPortAdded(MidiInputPort* pPort) {
+     // find out the device ID
+     std::map<uint, MidiInputDevice*> devices =
+         pParent->pSampler->GetMidiInputDevices();
+     for (
+         std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
+         iter != devices.end(); ++iter
+     ) {
+         if (iter->second == pPort->GetDevice()) { // found
+             VirtualMidiDevice* pMidiListener = new VirtualMidiDevice;
+             pPort->Connect(pMidiListener);
+             device_midi_listener_entry entry = {
+                 pPort, pMidiListener, iter->first
+             };
+             deviceMidiListeners.push_back(entry);
+             return;
+         }
+     }
+ }
  void LSCPServer::EventHandler::MidiInstrumentCountChanged(int MapId, int NewCount) {
      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_midi_instr_count, MapId, NewCount));
  }
-Line 144 
 void LSCPServer::EventHandler::TotalVoic
+Line 294 
 void LSCPServer::EventHandler::TotalVoic
      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_total_voice_count, NewCount));
  }
+ void LSCPServer::EventHandler::TotalStreamCountChanged(int NewCount) {
+     LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_total_stream_count, NewCount));
+ }
  #if HAVE_SQLITE3
  void LSCPServer::DbInstrumentsEventHandler::DirectoryCountChanged(String Dir) {
      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_db_instr_dir_count, InstrumentsDb::toEscapedPath(Dir)));
-Line 194 
 int LSCPServer::WaitUntilInitialized(lon
+Line 348 
 int LSCPServer::WaitUntilInitialized(lon
  }
  int LSCPServer::Main() {
+         #if defined(WIN32)
+         WSADATA wsaData;
+         int iResult;
+         iResult = WSAStartup(MAKEWORD(2,2), &wsaData);
+         if (iResult != 0) {
+                 std::cerr << "LSCPServer: WSAStartup failed: " << iResult << "\n";
+                 exit(EXIT_FAILURE);
+         }
+         #endif
      hSocket = socket(AF_INET, SOCK_STREAM, 0);
      if (hSocket < 0) {
          std::cerr << "LSCPServer: Could not create server socket." << std::endl;
-Line 207 
 int LSCPServer::Main() {
+Line 370 
 int LSCPServer::Main() {
              if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {
                  if (trial > LSCP_SERVER_BIND_TIMEOUT) {
                      std::cerr << "gave up!" << std::endl;
+                     #if defined(WIN32)
+                     closesocket(hSocket);
+                     #else
                      close(hSocket);
+                     #endif
                      //return -1;
                      exit(EXIT_FAILURE);
                  }
-Line 227 
 int LSCPServer::Main() {
+Line 394 
 int LSCPServer::Main() {
      pSampler->AddVoiceCountListener(&eventHandler);
      pSampler->AddStreamCountListener(&eventHandler);
      pSampler->AddBufferFillListener(&eventHandler);
+     pSampler->AddTotalStreamCountListener(&eventHandler);
      pSampler->AddTotalVoiceCountListener(&eventHandler);
      pSampler->AddFxSendCountListener(&eventHandler);
      MidiInstrumentMapper::AddMidiInstrumentCountListener(&eventHandler);
-Line 246 
 int LSCPServer::Main() {
+Line 414 
 int LSCPServer::Main() {
      timeval timeout;
      while (true) {
+         #if CONFIG_PTHREAD_TESTCANCEL
+                 TestCancel();
+         #endif
          // check if some engine channel's parameter / status changed, if so notify the respective LSCP event subscribers
          {
              std::set<EngineChannel*> engineChannels = EngineChannelFactory::EngineChannelInstances();
-Line 267 
 int LSCPServer::Main() {
+Line 438 
 int LSCPServer::Main() {
              }
          }
+         // check if MIDI data arrived on some engine channel
+         for (int i = 0; i < eventHandler.channelMidiListeners.size(); ++i) {
+             const EventHandler::midi_listener_entry entry =
+                 eventHandler.channelMidiListeners[i];
+             VirtualMidiDevice* pMidiListener = entry.pMidiListener;
+             if (pMidiListener->NotesChanged()) {
+                 for (int iNote = 0; iNote < 128; iNote++) {
+                     if (pMidiListener->NoteChanged(iNote)) {
+                         const bool bActive = pMidiListener->NoteIsActive(iNote);
+                         LSCPServer::SendLSCPNotify(
+                             LSCPEvent(
+                                 LSCPEvent::event_channel_midi,
+                                 entry.pSamplerChannel->Index(),
+                                 std::string(bActive ? "NOTE_ON" : "NOTE_OFF"),
+                                 iNote,
+                                 bActive ? pMidiListener->NoteOnVelocity(iNote)
+                                         : pMidiListener->NoteOffVelocity(iNote)
+                             )
+                         );
+                     }
+                 }
+             }
+         }
+         // check if MIDI data arrived on some MIDI device
+         for (int i = 0; i < eventHandler.deviceMidiListeners.size(); ++i) {
+             const EventHandler::device_midi_listener_entry entry =
+                 eventHandler.deviceMidiListeners[i];
+             VirtualMidiDevice* pMidiListener = entry.pMidiListener;
+             if (pMidiListener->NotesChanged()) {
+                 for (int iNote = 0; iNote < 128; iNote++) {
+                     if (pMidiListener->NoteChanged(iNote)) {
+                         const bool bActive = pMidiListener->NoteIsActive(iNote);
+                         LSCPServer::SendLSCPNotify(
+                             LSCPEvent(
+                                 LSCPEvent::event_device_midi,
+                                 entry.uiDeviceID,
+                                 entry.pPort->GetPortNumber(),
+                                 std::string(bActive ? "NOTE_ON" : "NOTE_OFF"),
+                                 iNote,
+                                 bActive ? pMidiListener->NoteOnVelocity(iNote)
+                                         : pMidiListener->NoteOffVelocity(iNote)
+                             )
+                         );
+                     }
+                 }
+             }
+         }
          //Now let's deliver late notifies (if any)
          NotifyBufferMutex.Lock();
          for (std::map<int,String>::iterator iterNotify = bufferedNotifies.begin(); iterNotify != bufferedNotifies.end(); iterNotify++) {
-Line 289 
 int LSCPServer::Main() {
+Line 509 
 int LSCPServer::Main() {
                  continue; //Nothing try again
          if (retval == -1) {
                  std::cerr << "LSCPServer: Socket select error." << std::endl;
+                 #if defined(WIN32)
+                 closesocket(hSocket);
+                 #else
                  close(hSocket);
+                 #endif
                  exit(EXIT_FAILURE);
          }
-Line 301 
 int LSCPServer::Main() {
+Line 525 
 int LSCPServer::Main() {
                          exit(EXIT_FAILURE);
                  }
+                 #if defined(WIN32)
+                 u_long nonblock_io = 1;
+                 if( ioctlsocket(socket, FIONBIO, &nonblock_io) ) {
+                   std::cerr << "LSCPServer: ioctlsocket: set FIONBIO failed. Error " << WSAGetLastError() << std::endl;
+                   exit(EXIT_FAILURE);
+                 }
+         #else
                  if (fcntl(socket, F_SETFL, O_NONBLOCK)) {
                          std::cerr << "LSCPServer: F_SETFL O_NONBLOCK failed." << std::endl;
                          exit(EXIT_FAILURE);
                  }
+                 #endif
                  // Parser initialization
                  yyparse_param_t yyparse_param;
-Line 363 
 void LSCPServer::CloseConnection( std::v
+Line 595 
 void LSCPServer::CloseConnection( std::v
          NotifyMutex.Lock();
          bufferedCommands.erase(socket);
          bufferedNotifies.erase(socket);
+         #if defined(WIN32)
+         closesocket(socket);
+         #else
          close(socket);
+         #endif
          NotifyMutex.Unlock();
  }
+ void LSCPServer::LockRTNotify() {
+     RTNotifyMutex.Lock();
+ }
+ void LSCPServer::UnlockRTNotify() {
+     RTNotifyMutex.Unlock();
+ }
  int LSCPServer::EventSubscribers( std::list<LSCPEvent::event_t> events ) {
          int subs = 0;
          SubscriptionMutex.Lock();
-Line 442 
 bool LSCPServer::GetLSCPCommand( std::ve
+Line 686 
 bool LSCPServer::GetLSCPCommand( std::ve
          char c;
          int i = 0;
          while (true) {
+                 #if defined(WIN32)
+                 int result = recv(socket, (char *)&c, 1, 0); //Read one character at a time for now
+                 #else
                  int result = recv(socket, (void *)&c, 1, 0); //Read one character at a time for now
+                 #endif
                  if (result == 0) { //socket was selected, so 0 here means client has closed the connection
                          CloseConnection(iter);
                          break;
-Line 457 
 bool LSCPServer::GetLSCPCommand( std::ve
+Line 705 
 bool LSCPServer::GetLSCPCommand( std::ve
                          }
                          bufferedCommands[socket] += c;
                  }
+                 #if defined(WIN32)
+                 if (result == SOCKET_ERROR) {
+                     int wsa_lasterror = WSAGetLastError();
+                         if (wsa_lasterror == WSAEWOULDBLOCK) //Would block, try again later.
+                                 return false;
+                         dmsg(2,("LSCPScanner: Socket error after recv() Error %d.\n", wsa_lasterror));
+                         CloseConnection(iter);
+                         break;
+                 }
+                 #else
                  if (result == -1) {
                          if (errno == EAGAIN) //Would block, try again later.
                                  return false;
-Line 495 
 bool LSCPServer::GetLSCPCommand( std::ve
+Line 753 
 bool LSCPServer::GetLSCPCommand( std::ve
                          CloseConnection(iter);
                          break;
                  }
+                 #endif
          }
          return false;
  }
-Line 768 
 String LSCPServer::GetEngineInfo(String
+Line 1027 
 String LSCPServer::GetEngineInfo(String
      LockRTNotify();
      try {
          Engine* pEngine = EngineFactory::Create(EngineName);
-         result.Add("DESCRIPTION", pEngine->Description());
+         result.Add("DESCRIPTION", _escapeLscpResponse(pEngine->Description()));
          result.Add("VERSION",     pEngine->Version());
          EngineFactory::Destroy(pEngine);
      }
-Line 841 
 String LSCPServer::GetChannelInfo(uint u
+Line 1100 
 String LSCPServer::GetChannelInfo(uint u
          if (pSamplerChannel->GetMidiInputChannel() == midi_chan_all) result.Add("MIDI_INPUT_CHANNEL", "ALL");
          else result.Add("MIDI_INPUT_CHANNEL", pSamplerChannel->GetMidiInputChannel());
+         // convert the filename into the correct encoding as defined for LSCP
+         // (especially in terms of special characters -> escape sequences)
+         if (InstrumentFileName != "NONE" && InstrumentFileName != "") {
+ #if WIN32
+             InstrumentFileName = Path::fromWindows(InstrumentFileName).toLscp();
+ #else
+             // assuming POSIX
+             InstrumentFileName = Path::fromPosix(InstrumentFileName).toLscp();
+ #endif
+         }
          result.Add("INSTRUMENT_FILE", InstrumentFileName);
          result.Add("INSTRUMENT_NR", InstrumentIndex);
-         result.Add("INSTRUMENT_NAME", InstrumentName);
+         result.Add("INSTRUMENT_NAME", _escapeLscpResponse(InstrumentName));
          result.Add("INSTRUMENT_STATUS", InstrumentStatus);
          result.Add("MUTE", Mute == -1 ? "MUTED_BY_SOLO" : (Mute ? "true" : "false"));
          result.Add("SOLO", Solo);
-Line 1785 
 String LSCPServer::GetMidiInstrumentMapp
+Line 2055 
 String LSCPServer::GetMidiInstrumentMapp
          std::map<midi_prog_index_t,MidiInstrumentMapper::entry_t>::iterator iter = mappings.find(idx);
          if (iter == mappings.end()) result.Error("there is no map entry with that index");
          else { // found
-             result.Add("NAME", iter->second.Name);
+             // convert the filename into the correct encoding as defined for LSCP
+             // (especially in terms of special characters -> escape sequences)
+ #if WIN32
+             const String instrumentFileName = Path::fromWindows(iter->second.InstrumentFile).toLscp();
+ #else
+             // assuming POSIX
+             const String instrumentFileName = Path::fromPosix(iter->second.InstrumentFile).toLscp();
+ #endif
+             result.Add("NAME", _escapeLscpResponse(iter->second.Name));
              result.Add("ENGINE_NAME", iter->second.EngineName);
-             result.Add("INSTRUMENT_FILE", iter->second.InstrumentFile);
+             result.Add("INSTRUMENT_FILE", instrumentFileName);
              result.Add("INSTRUMENT_NR", (int) iter->second.InstrumentIndex);
              String instrumentName;
              Engine* pEngine = EngineFactory::Create(iter->second.EngineName);
-Line 1800 
 String LSCPServer::GetMidiInstrumentMapp
+Line 2080 
 String LSCPServer::GetMidiInstrumentMapp
                  }
                  EngineFactory::Destroy(pEngine);
              }
-             result.Add("INSTRUMENT_NAME", instrumentName);
+             result.Add("INSTRUMENT_NAME", _escapeLscpResponse(instrumentName));
              switch (iter->second.LoadMode) {
                  case MidiInstrumentMapper::ON_DEMAND:
                      result.Add("LOAD_MODE", "ON_DEMAND");
-Line 1955 
 String LSCPServer::GetMidiInstrumentMap(
+Line 2235 
 String LSCPServer::GetMidiInstrumentMap(
      dmsg(2,("LSCPServer: GetMidiInstrumentMap()\n"));
      LSCPResultSet result;
      try {
-         result.Add("NAME", MidiInstrumentMapper::MapName(MidiMapID));
+         result.Add("NAME", _escapeLscpResponse(MidiInstrumentMapper::MapName(MidiMapID)));
          result.Add("DEFAULT", MidiInstrumentMapper::GetDefaultMap() == MidiMapID);
      } catch (Exception e) {
          result.Error(e);
-Line 2099 
 String LSCPServer::GetFxSendInfo(uint ui
+Line 2379 
 String LSCPServer::GetFxSendInfo(uint ui
          }
          // success
-         result.Add("NAME", pFxSend->Name());
+         result.Add("NAME", _escapeLscpResponse(pFxSend->Name()));
          result.Add("MIDI_CONTROLLER", pFxSend->MidiController());
          result.Add("LEVEL", ToString(pFxSend->Level()));
          result.Add("AUDIO_OUTPUT_ROUTING", AudioRouting);
-Line 2222 
 String LSCPServer::ResetSampler() {
+Line 2502 
 String LSCPServer::ResetSampler() {
   */
  String LSCPServer::GetServerInfo() {
      dmsg(2,("LSCPServer: GetServerInfo()\n"));
+     const std::string description =
+         _escapeLscpResponse("LinuxSampler - modular, streaming capable sampler");
      LSCPResultSet result;
-     result.Add("DESCRIPTION", "LinuxSampler - modular, streaming capable sampler");
+     result.Add("DESCRIPTION", description);
      result.Add("VERSION", VERSION);
      result.Add("PROTOCOL_VERSION", ToString(LSCP_RELEASE_MAJOR) + "." + ToString(LSCP_RELEASE_MINOR));
  #if HAVE_SQLITE3
-Line 2236 
 String LSCPServer::GetServerInfo() {
+Line 2518 
 String LSCPServer::GetServerInfo() {
  }
  /**
+  * Will be called by the parser to return the current number of all active streams.
+  */
+ String LSCPServer::GetTotalStreamCount() {
+     dmsg(2,("LSCPServer: GetTotalStreamCount()\n"));
+     LSCPResultSet result;
+     result.Add(pSampler->GetDiskStreamCount());
+     return result.Produce();
+ }
+ /**
   * Will be called by the parser to return the current number of all active voices.
   */
  String LSCPServer::GetTotalVoiceCount() {
-Line 2265 
 String LSCPServer::SetGlobalVolume(doubl
+Line 2557 
 String LSCPServer::SetGlobalVolume(doubl
      LSCPResultSet result;
      try {
          if (dVolume < 0) throw Exception("Volume may not be negative");
-         GLOBAL_VOLUME = dVolume; // see common/global.cpp
+         GLOBAL_VOLUME = dVolume; // see common/global_private.cpp
          LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_global_info, "VOLUME", GLOBAL_VOLUME));
      } catch (Exception e) {
          result.Error(e);
-Line 2273 
 String LSCPServer::SetGlobalVolume(doubl
+Line 2565 
 String LSCPServer::SetGlobalVolume(doubl
      return result.Produce();
  }
+ String LSCPServer::GetFileInstruments(String Filename) {
+     dmsg(2,("LSCPServer: GetFileInstruments(String Filename=%s)\n",Filename.c_str()));
+     LSCPResultSet result;
+     try {
+         VerifyFile(Filename);
+     } catch (Exception e) {
+         result.Error(e);
+         return result.Produce();
+     }
+     // try to find a sampler engine that can handle the file
+     bool bFound = false;
+     std::vector<String> engineTypes = EngineFactory::AvailableEngineTypes();
+     for (int i = 0; !bFound && i < engineTypes.size(); i++) {
+         Engine* pEngine = NULL;
+         try {
+             pEngine = EngineFactory::Create(engineTypes[i]);
+             if (!pEngine) throw Exception("Internal error: could not create '" + engineTypes[i] + "' engine");
+             InstrumentManager* pManager = pEngine->GetInstrumentManager();
+             if (pManager) {
+                 std::vector<InstrumentManager::instrument_id_t> IDs =
+                     pManager->GetInstrumentFileContent(Filename);
+                 // return the amount of instruments in the file
+                 result.Add(IDs.size());
+                 // no more need to ask other engine types
+                 bFound = true;
+             } else dmsg(1,("Warning: engine '%s' does not provide an instrument manager\n", engineTypes[i].c_str()));
+         } catch (Exception e) {
+             // NOOP, as exception is thrown if engine doesn't support file
+         }
+         if (pEngine) EngineFactory::Destroy(pEngine);
+     }
+     if (!bFound) result.Error("Unknown file format");
+     return result.Produce();
+ }
+ String LSCPServer::ListFileInstruments(String Filename) {
+     dmsg(2,("LSCPServer: ListFileInstruments(String Filename=%s)\n",Filename.c_str()));
+     LSCPResultSet result;
+     try {
+         VerifyFile(Filename);
+     } catch (Exception e) {
+         result.Error(e);
+         return result.Produce();
+     }
+     // try to find a sampler engine that can handle the file
+     bool bFound = false;
+     std::vector<String> engineTypes = EngineFactory::AvailableEngineTypes();
+     for (int i = 0; !bFound && i < engineTypes.size(); i++) {
+         Engine* pEngine = NULL;
+         try {
+             pEngine = EngineFactory::Create(engineTypes[i]);
+             if (!pEngine) throw Exception("Internal error: could not create '" + engineTypes[i] + "' engine");
+             InstrumentManager* pManager = pEngine->GetInstrumentManager();
+             if (pManager) {
+                 std::vector<InstrumentManager::instrument_id_t> IDs =
+                     pManager->GetInstrumentFileContent(Filename);
+                 // return a list of IDs of the instruments in the file
+                 String s;
+                 for (int j = 0; j < IDs.size(); j++) {
+                     if (s.size()) s += ",";
+                     s += ToString(IDs[j].Index);
+                 }
+                 result.Add(s);
+                 // no more need to ask other engine types
+                 bFound = true;
+             } else dmsg(1,("Warning: engine '%s' does not provide an instrument manager\n", engineTypes[i].c_str()));
+         } catch (Exception e) {
+             // NOOP, as exception is thrown if engine doesn't support file
+         }
+         if (pEngine) EngineFactory::Destroy(pEngine);
+     }
+     if (!bFound) result.Error("Unknown file format");
+     return result.Produce();
+ }
+ String LSCPServer::GetFileInstrumentInfo(String Filename, uint InstrumentID) {
+     dmsg(2,("LSCPServer: GetFileInstrumentInfo(String Filename=%s, InstrumentID=%d)\n",Filename.c_str(),InstrumentID));
+     LSCPResultSet result;
+     try {
+         VerifyFile(Filename);
+     } catch (Exception e) {
+         result.Error(e);
+         return result.Produce();
+     }
+     InstrumentManager::instrument_id_t id;
+     id.FileName = Filename;
+     id.Index    = InstrumentID;
+     // try to find a sampler engine that can handle the file
+     bool bFound = false;
+     bool bFatalErr = false;
+     std::vector<String> engineTypes = EngineFactory::AvailableEngineTypes();
+     for (int i = 0; !bFound && !bFatalErr && i < engineTypes.size(); i++) {
+         Engine* pEngine = NULL;
+         try {
+             pEngine = EngineFactory::Create(engineTypes[i]);
+             if (!pEngine) throw Exception("Internal error: could not create '" + engineTypes[i] + "' engine");
+             InstrumentManager* pManager = pEngine->GetInstrumentManager();
+             if (pManager) {
+                 // check if the instrument index is valid
+                 // FIXME: this won't work if an engine only supports parts of the instrument file
+                 std::vector<InstrumentManager::instrument_id_t> IDs =
+                     pManager->GetInstrumentFileContent(Filename);
+                 if (std::find(IDs.begin(), IDs.end(), id) == IDs.end()) {
+                     std::stringstream ss;
+                     ss << "Invalid instrument index " << InstrumentID << " for instrument file '" << Filename << "'";
+                     bFatalErr = true;
+                     throw Exception(ss.str());
+                 }
+                 // get the info of the requested instrument
+                 InstrumentManager::instrument_info_t info =
+                     pManager->GetInstrumentInfo(id);
+                 // return detailed informations about the file
+                 result.Add("NAME", info.InstrumentName);
+                 result.Add("FORMAT_FAMILY", engineTypes[i]);
+                 result.Add("FORMAT_VERSION", info.FormatVersion);
+                 result.Add("PRODUCT", info.Product);
+                 result.Add("ARTISTS", info.Artists);
+                 // no more need to ask other engine types
+                 bFound = true;
+             } else dmsg(1,("Warning: engine '%s' does not provide an instrument manager\n", engineTypes[i].c_str()));
+         } catch (Exception e) {
+             // usually NOOP, as exception is thrown if engine doesn't support file
+             if (bFatalErr) result.Error(e);
+         }
+         if (pEngine) EngineFactory::Destroy(pEngine);
+     }
+     if (!bFound && !bFatalErr) result.Error("Unknown file format");
+     return result.Produce();
+ }
+ void LSCPServer::VerifyFile(String Filename) {
+     #if WIN32
+     WIN32_FIND_DATA win32FileAttributeData;
+     BOOL res = GetFileAttributesEx( Filename.c_str(), GetFileExInfoStandard, &win32FileAttributeData );
+     if (!res) {
+         std::stringstream ss;
+         ss << "File does not exist, GetFileAttributesEx failed `" << Filename << "`: Error " << GetLastError();
+         throw Exception(ss.str());
+     }
+     if ( win32FileAttributeData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ) {
+         throw Exception("Directory is specified");
+     }
+     #else
+     struct stat statBuf;
+     int res = stat(Filename.c_str(), &statBuf);
+     if (res) {
+         std::stringstream ss;
+         ss << "Fail to stat `" << Filename << "`: " << strerror(errno);
+         throw Exception(ss.str());
+     }
+     if (S_ISDIR(statBuf.st_mode)) {
+         throw Exception("Directory is specified");
+     }
+     #endif
+ }
  /**
   * Will be called by the parser to subscribe a client (frontend) on the
   * server for receiving event messages.
-Line 2374 
 String LSCPServer::GetDbInstrumentDirect
+Line 2826 
 String LSCPServer::GetDbInstrumentDirect
      try {
          DbDirectory info = InstrumentsDb::GetInstrumentsDb()->GetDirectoryInfo(Dir);
-         result.Add("DESCRIPTION", InstrumentsDb::toEscapedText(info.Description));
+         result.Add("DESCRIPTION", _escapeLscpResponse(info.Description));
          result.Add("CREATED", info.Created);
          result.Add("MODIFIED", info.Modified);
      } catch (Exception e) {
-Line 2558 
 String LSCPServer::GetDbInstrumentInfo(S
+Line 3010 
 String LSCPServer::GetDbInstrumentInfo(S
          result.Add("SIZE", (int)info.Size);
          result.Add("CREATED", info.Created);
          result.Add("MODIFIED", info.Modified);
-         result.Add("DESCRIPTION", InstrumentsDb::toEscapedText(info.Description));
+         result.Add("DESCRIPTION", _escapeLscpResponse(info.Description));
          result.Add("IS_DRUM", info.IsDrum);
-         result.Add("PRODUCT", InstrumentsDb::toEscapedText(info.Product));
+         result.Add("PRODUCT", _escapeLscpResponse(info.Product));
-         result.Add("ARTISTS", InstrumentsDb::toEscapedText(info.Artists));
+         result.Add("ARTISTS", _escapeLscpResponse(info.Artists));
-         result.Add("KEYWORDS", InstrumentsDb::toEscapedText(info.Keywords));
+         result.Add("KEYWORDS", _escapeLscpResponse(info.Keywords));
      } catch (Exception e) {
           result.Error(e);
      }
-Line 2742 
 String LSCPServer::FindDbInstruments(Str
+Line 3194 
 String LSCPServer::FindDbInstruments(Str
      } catch (Exception e) {
           result.Error(e);
      }
+ #else
+     result.Error(String(DOESNT_HAVE_SQLITE3), 0);
+ #endif
+     return result.Produce();
+ }
+ String LSCPServer::FormatInstrumentsDb() {
+     dmsg(2,("LSCPServer: FormatInstrumentsDb()\n"));
+     LSCPResultSet result;
+ #if HAVE_SQLITE3
+     try {
+         InstrumentsDb::GetInstrumentsDb()->Format();
+     } catch (Exception e) {
+          result.Error(e);
+     }
  #else
      result.Error(String(DOESNT_HAVE_SQLITE3), 0);
  #endif

 Legend:



Removed from v.1350
 


changed lines


 
Added in v.1724
 Legend:



Removed from v.1350
 


changed lines


 
Added in v.1724
-Removed from v.1350
+Added in v.1724

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