/[svn]/linuxsampler/trunk/src/network/lscpserver.h
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revision 170 by senkov, Sat Jul 3 20:08:07 2004 UTC revision 527 by capela, Mon May 9 11:59:58 2005 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6     *   Copyright (C) 2005 Christian Schoenebeck                              *
7   *                                                                         *   *                                                                         *
8   *   This program is free software; you can redistribute it and/or modify  *   *   This library is free software; you can redistribute it and/or modify  *
9   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
10   *   the Free Software Foundation; either version 2 of the License, or     *   *   the Free Software Foundation; either version 2 of the License, or     *
11   *   (at your option) any later version.                                   *   *   (at your option) any later version.                                   *
12   *                                                                         *   *                                                                         *
13   *   This program is distributed in the hope that it will be useful,       *   *   This library is distributed in the hope that it will be useful,       *
14   *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *   *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
15   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
16   *   GNU General Public License for more details.                          *   *   GNU General Public License for more details.                          *
17   *                                                                         *   *                                                                         *
18   *   You should have received a copy of the GNU General Public License     *   *   You should have received a copy of the GNU General Public License     *
19   *   along with this program; if not, write to the Free Software           *   *   along with this library; if not, write to the Free Software           *
20   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
21   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
22   ***************************************************************************/   ***************************************************************************/
# Line 39  Line 40 
40  #include "lscpparser.h"  #include "lscpparser.h"
41  #include "lscp.h"  #include "lscp.h"
42  #include "lscpevent.h"  #include "lscpevent.h"
43    #include "lscpinstrumentloader.h"
44  #include "../Sampler.h"  #include "../Sampler.h"
45  #include "../common/Thread.h"  #include "../common/Thread.h"
46  #include "../common/Mutex.h"  #include "../common/Mutex.h"
47    #include "../common/Condition.h"
48    
49  /// TCP Port on which the server should listen for connection requests.  /// TCP Port on which the server should listen for connection requests.
50  #define LSCP_PORT 8888  #define LSCP_PORT 8888
51    
52    /// try up to 3 minutes to bind server socket
53    #define LSCP_SERVER_BIND_TIMEOUT 180
54    
55  using namespace LinuxSampler;  using namespace LinuxSampler;
56    
57  // External references to the main scanner and parser functions  // External references to the main scanner and parser functions
58  extern int yyparse(void* YYPARSE_PARAM);  extern int yyparse(void* YYPARSE_PARAM);
59  extern int yylex_init(yyscan_t* scanner);  extern void restart(yyparse_param_t* pparam, int& yychar);
 extern int yylex_destroy(yyscan_t yyscanner);  
60    
61  /**  /**
62   * Network server for the LinuxSampler Control Protocol (LSCP).   * Network server for the LinuxSampler Control Protocol (LSCP).
# Line 59  extern int yylex_destroy(yyscan_t yyscan Line 64  extern int yylex_destroy(yyscan_t yyscan
64  class LSCPServer : public Thread {  class LSCPServer : public Thread {
65      public:      public:
66          LSCPServer(Sampler* pSampler);          LSCPServer(Sampler* pSampler);
67            virtual ~LSCPServer();
68            int WaitUntilInitialized(long TimeoutSeconds = 0L, long TimeoutNanoSeconds = 0L);
69    
70          // Methods called by the parser          // Methods called by the parser
71          String DestroyAudioOutputDevice(uint DeviceIndex);          String DestroyAudioOutputDevice(uint DeviceIndex);
72          String DestroyMidiInputDevice(uint DeviceIndex);          String DestroyMidiInputDevice(uint DeviceIndex);
73          String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground = false);          String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground = false);
74          String LoadEngine(String EngineName, uint uiSamplerChannel);          String SetEngineType(String EngineName, uint uiSamplerChannel);
75          String GetChannels();          String GetChannels();
76            String ListChannels();
77          String AddChannel();          String AddChannel();
78          String RemoveChannel(uint uiSamplerChannel);          String RemoveChannel(uint uiSamplerChannel);
79          String GetAvailableEngines();          String GetAvailableEngines();
80            String ListAvailableEngines();
81          String GetEngineInfo(String EngineName);          String GetEngineInfo(String EngineName);
82          String GetChannelInfo(uint uiSamplerChannel);          String GetChannelInfo(uint uiSamplerChannel);
83          String GetVoiceCount(uint uiSamplerChannel);          String GetVoiceCount(uint uiSamplerChannel);
84          String GetStreamCount(uint uiSamplerChannel);          String GetStreamCount(uint uiSamplerChannel);
85          String GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel);          String GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel);
86          String GetAvailableAudioOutputDrivers();          String GetAvailableAudioOutputDrivers();
87            String ListAvailableAudioOutputDrivers();
88          String GetAvailableMidiInputDrivers();          String GetAvailableMidiInputDrivers();
89            String ListAvailableMidiInputDrivers();
90          String GetAudioOutputDriverInfo(String Driver);          String GetAudioOutputDriverInfo(String Driver);
91          String GetMidiInputDriverInfo(String Driver);          String GetMidiInputDriverInfo(String Driver);
92  #ifdef __GNUC__  #ifdef __GNUC__
# Line 97  class LSCPServer : public Thread { Line 108  class LSCPServer : public Thread {
108          String GetAudioOutputDeviceInfo(uint DeviceIndex);          String GetAudioOutputDeviceInfo(uint DeviceIndex);
109          String GetMidiInputDeviceInfo(uint DeviceIndex);          String GetMidiInputDeviceInfo(uint DeviceIndex);
110          String GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex);          String GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex);
111            String GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName);
112          String GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId);          String GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId);
113          String GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName);          String GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName);
114          String SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal);          String SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal);
# Line 111  class LSCPServer : public Thread { Line 123  class LSCPServer : public Thread {
123          String SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel);          String SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel);
124          String SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel);          String SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel);
125          String SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel);          String SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel);
126          String SetVolume(double Volume, uint uiSamplerChannel);          String SetVolume(double dVolume, uint uiSamplerChannel);
127          String ResetChannel(uint uiSamplerChannel);          String ResetChannel(uint uiSamplerChannel);
128            String ResetSampler();
129          String SubscribeNotification(LSCPEvent::event_t);          String SubscribeNotification(LSCPEvent::event_t);
130          String UnsubscribeNotification(LSCPEvent::event_t);          String UnsubscribeNotification(LSCPEvent::event_t);
131            String QueryDatabase(String query);
132            String SetEcho(yyparse_param_t* pSession, double boolean_value);
133          void   AnswerClient(String ReturnMessage);          void   AnswerClient(String ReturnMessage);
134    
135          static int currentSocket;          static int currentSocket;
136          static std::map<int,String> bufferedCommands;          static std::map<int,String> bufferedCommands;
137    
138            static void SendLSCPNotify( LSCPEvent Event );
139            static int EventSubscribers( std::list<LSCPEvent::event_t> events );
140            static void LockRTNotify( void ) { RTNotifyMutex.Lock(); }
141            static void UnlockRTNotify( void ) { RTNotifyMutex.Unlock(); }
142    
143      protected:      protected:
144          int            hSocket;          int            hSocket;
145          sockaddr_in    SocketAddress;          sockaddr_in    SocketAddress;
146          Sampler*       pSampler;          Sampler*       pSampler;
147            Condition      Initialized;
148            LSCPInstrumentLoader InstrumentLoader; ///< thread responsible for loading instruments in the background
149    
150          int Main(); ///< Implementation of virtual method from class Thread          int Main(); ///< Implementation of virtual method from class Thread
151    
         static void SendLSCPNotify( LSCPEvent Event );  
   
152      private:      private:
153            
154          /**          /**
155           * Find a created audio output device index.           * Find a created audio output device index.
156           */           */
157          int GetAudioOutputDeviceIndex (AudioOutputDevice *pDevice);          int GetAudioOutputDeviceIndex (AudioOutputDevice *pDevice);
158            
159          /**          /**
160           * Find a created midi input device index.           * Find a created midi input device index.
161           */           */
# Line 143  class LSCPServer : public Thread { Line 164  class LSCPServer : public Thread {
164          static std::map<int,String> bufferedNotifies;          static std::map<int,String> bufferedNotifies;
165          static Mutex NotifyMutex;          static Mutex NotifyMutex;
166          static Mutex NotifyBufferMutex;          static Mutex NotifyBufferMutex;
167          static bool GetLSCPCommand( std::vector<int>::iterator iter );          static bool GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter );
168          static void CloseConnection( std::vector<int>::iterator iter );          static void CloseConnection( std::vector<yyparse_param_t>::iterator iter );
169          static std::vector<int> hSessions;          static std::vector<yyparse_param_t> Sessions;
170          static Mutex SubscriptionMutex;          static Mutex SubscriptionMutex;
171          static std::map< LSCPEvent::event_t, std::list<int> > eventSubscriptions;          static std::map< LSCPEvent::event_t, std::list<int> > eventSubscriptions;
172          static fd_set fdSet;          static fd_set fdSet;
 };  
   
 /**  
  * Instrument loader thread for the LinuxSampler Control Protocol (LSCP).  
  */  
 class LSCPLoadInstrument : public Thread {  
   
     public:  
         LSCPLoadInstrument(Engine* pEngine, String Filename, uint uiInstrument);  
   
     protected:  
         // Instance variables.  
         Engine* pEngine;  
         String  Filename;  
         uint    uiInstrument;  
173    
174          // Implementation of virtual method from class Thread.          //Protect main thread that generates real time notify messages
175          int Main();          //like voice count, stream count and buffer fill
176            //from LSCP server removing engines and channels from underneath
177            static Mutex RTNotifyMutex;
178  };  };
179    
180  #endif // __LSCPSERVER_H_  #endif // __LSCPSERVER_H_
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