/[svn]/linuxsampler/trunk/src/network/lscpserver.h
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revision 133 by capela, Fri Jun 18 14:29:02 2004 UTC revision 947 by schoenebeck, Mon Nov 27 21:34:55 2006 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, 2006 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 26  Line 27 
27  #include <unistd.h>  #include <unistd.h>
28  #include <sys/types.h>  #include <sys/types.h>
29  #include <sys/socket.h>  #include <sys/socket.h>
30    #include <sys/select.h>
31    #include <sys/time.h>
32  #include <netinet/in.h>  #include <netinet/in.h>
33  #include <netinet/tcp.h>  #include <netinet/tcp.h>
34  #include <arpa/inet.h>  #include <arpa/inet.h>
35  #include <netdb.h>  #include <netdb.h>
36    
37    #include <list>
38    
39  #include "lscp.h"  #include "lscp.h"
40  #include "lscpparser.h"  #include "lscpparser.h"
41    #include "lscp.h"
42    #include "lscpevent.h"
43  #include "../Sampler.h"  #include "../Sampler.h"
44  #include "../common/Thread.h"  #include "../common/Thread.h"
45    #include "../common/Mutex.h"
46    #include "../common/Condition.h"
47    
48    #include "../drivers/midi/MidiInstrumentMapper.h"
49    
50  /// TCP Port on which the server should listen for connection requests.  /// TCP Port on which the server should listen for connection requests.
51    #define LSCP_ADDR INADDR_ANY
52  #define LSCP_PORT 8888  #define LSCP_PORT 8888
53    
54  using namespace LinuxSampler;  /// try up to 3 minutes to bind server socket
55    #define LSCP_SERVER_BIND_TIMEOUT 180
56    
57  /// Handle for a client connection (FIXME: doesn't work for more than one network connections of course, thus has to be included to the yyparse() parameters instead).  using namespace LinuxSampler;
 extern int hSession;  
58    
59  // External references to the main scanner and parser functions  // External references to the main scanner and parser functions
60  extern int yyparse(void* YYPARSE_PARAM);  extern int yyparse(void* YYPARSE_PARAM);
61  extern int yylex_init(yyscan_t* scanner);  extern void restart(yyparse_param_t* pparam, int& yychar);
 extern int yylex_destroy(yyscan_t yyscanner);  
62    
63  /**  /**
64   * Network server for the LinuxSampler Control Protocol (LSCP).   * Network server for the LinuxSampler Control Protocol (LSCP).
65   */   */
66  class LSCPServer : public Thread {  class LSCPServer : public Thread {
67      public:      public:
68          LSCPServer(Sampler* pSampler);          LSCPServer(Sampler* pSampler, long int addr, short int port);
69            virtual ~LSCPServer();
70            int WaitUntilInitialized(long TimeoutSeconds = 0L, long TimeoutNanoSeconds = 0L);
71    
72          // Methods called by the parser          // Methods called by the parser
         String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters);  
73          String DestroyAudioOutputDevice(uint DeviceIndex);          String DestroyAudioOutputDevice(uint DeviceIndex);
74          String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel);          String DestroyMidiInputDevice(uint DeviceIndex);
75          String LoadEngine(String EngineName, uint uiSamplerChannel);          String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground = false);
76            String SetEngineType(String EngineName, uint uiSamplerChannel);
77          String GetChannels();          String GetChannels();
78            String ListChannels();
79          String AddChannel();          String AddChannel();
80          String RemoveChannel(uint uiSamplerChannel);          String RemoveChannel(uint uiSamplerChannel);
81          String GetAvailableEngines();          String GetAvailableEngines();
82            String ListAvailableEngines();
83          String GetEngineInfo(String EngineName);          String GetEngineInfo(String EngineName);
84          String GetChannelInfo(uint uiSamplerChannel);          String GetChannelInfo(uint uiSamplerChannel);
85          String GetVoiceCount(uint uiSamplerChannel);          String GetVoiceCount(uint uiSamplerChannel);
86          String GetStreamCount(uint uiSamplerChannel);          String GetStreamCount(uint uiSamplerChannel);
87          String GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel);          String GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel);
88          String GetAvailableAudioOutputDrivers();          String GetAvailableAudioOutputDrivers();
89            String ListAvailableAudioOutputDrivers();
90            String GetAvailableMidiInputDrivers();
91            String ListAvailableMidiInputDrivers();
92          String GetAudioOutputDriverInfo(String Driver);          String GetAudioOutputDriverInfo(String Driver);
93            String GetMidiInputDriverInfo(String Driver);
94  #ifdef __GNUC__  #ifdef __GNUC__
95          typedef std::map<String,String> StringMap; // nasty workaround for a GCC bug (see GCC bug #15980, #57)          typedef std::map<String,String> StringMap; // nasty workaround for a GCC bug (see GCC bug #15980, #57)
96          String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());          String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
97            String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
98            String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = StringMap());
99            String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = StringMap());
100  #else  #else
101          String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());          String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
102            String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
103            String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
104            String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
105  #endif // __GNUC__  #endif // __GNUC__
106          String GetAudioOutputDeviceCount();          String GetAudioOutputDeviceCount();
107            String GetMidiInputDeviceCount();
108          String GetAudioOutputDevices();          String GetAudioOutputDevices();
109            String GetMidiInputDevices();
110          String GetAudioOutputDeviceInfo(uint DeviceIndex);          String GetAudioOutputDeviceInfo(uint DeviceIndex);
111            String GetMidiInputDeviceInfo(uint DeviceIndex);
112            String GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex);
113            String GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName);
114          String GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId);          String GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId);
115          String GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName);          String GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName);
116          String SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal);          String SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal);
117          String SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);          String SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
118            String SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
119            String SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal);
120          String SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel);          String SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel);
         String SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel);  
         String SetMIDIInputPort(String MIDIInputPort, uint uiSamplerchannel);  
         String SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel);  
121          String SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel);          String SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel);
122          String SetVolume(double Volume, uint uiSamplerChannel);          String SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel);
123            String SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel);
124            String SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel);
125            String SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel);
126            String SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel);
127            String SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel);
128            String SetVolume(double dVolume, uint uiSamplerChannel);
129            String SetChannelMute(bool bMute, uint uiSamplerChannel);
130            String SetChannelSolo(bool bSolo, uint uiSamplerChannel);
131            String AddOrReplaceMIDIInstrumentMapping(uint MidiBankMSB, uint MidiBankLSB, uint MidiProg, String EngineType, String InstrumentFile, uint InstrumentIndex, float Volume, MidiInstrumentMapper::mode_t LoadMode, String Name);
132            String RemoveMIDIInstrumentMapping(uint MidiBankMSB, uint MidiBankLSB, uint MidiProg);
133            String GetMidiIstrumentMappings();
134            String GetMidiInstrumentMapping(uint MidiBankMSB, uint MidiBankLSB, uint MidiProg);
135            String ListMidiInstrumentMappings();
136            String ClearMidiInstrumentMappings();
137          String ResetChannel(uint uiSamplerChannel);          String ResetChannel(uint uiSamplerChannel);
138          String SubscribeNotification(uint UDPPort);          String ResetSampler();
139          String UnsubscribeNotification(String SessionID);          String GetServerInfo();
140            String GetTotalVoiceCount();
141            String GetTotalVoiceCountMax();
142            String SubscribeNotification(LSCPEvent::event_t);
143            String UnsubscribeNotification(LSCPEvent::event_t);
144            String QueryDatabase(String query);
145            String SetEcho(yyparse_param_t* pSession, double boolean_value);
146          void   AnswerClient(String ReturnMessage);          void   AnswerClient(String ReturnMessage);
147    
148            static int currentSocket;
149            static std::map<int,String> bufferedCommands;
150    
151            static void SendLSCPNotify( LSCPEvent Event );
152            static int EventSubscribers( std::list<LSCPEvent::event_t> events );
153            static void LockRTNotify( void ) { RTNotifyMutex.Lock(); }
154            static void UnlockRTNotify( void ) { RTNotifyMutex.Unlock(); }
155    
156      protected:      protected:
157          int            hSocket;          int            hSocket;
158          sockaddr_in    SocketAddress;          sockaddr_in    SocketAddress;
159          Sampler*       pSampler;          Sampler*       pSampler;
160            Condition      Initialized;
161    
162          int Main(); ///< Implementation of virtual method from class Thread          int Main(); ///< Implementation of virtual method from class Thread
163    
164      private:      private:
165    
166          /**          /**
167           * Converts a result_t structure into a valid LSCP answer message.           * Find a created audio output device index.
168           */           */
169          inline String ConvertResult(result_t result) {          int GetAudioOutputDeviceIndex (AudioOutputDevice *pDevice);
             switch (result.type) {  
                 case result_type_success: {  
                     return "OK\r\n";  
                 }  
                 case result_type_warning: {  
                     std::stringstream ss;  
                     ss << "WRN:" << result.code << ":" << result.message << "\r\n";  
                     return ss.str();  
                 }  
                 case result_type_error: {  
                     std::stringstream ss;  
                     ss << "ERR:" << result.code << ":" << result.message << "\r\n";  
                     return ss.str();  
                 }  
             }  
         }  
   
         template<class T> inline String ToString(T o) {  
             std::stringstream ss;  
             ss << o;  
             return ss.str();  
         }  
 };  
   
   
 /**  
  * Instrument loader thread for the LinuxSampler Control Protocol (LSCP).  
  */  
 class LSCPLoadInstrument : public Thread {  
   
     public:  
         LSCPLoadInstrument(Engine* pEngine, String Filename, uint uiInstrument);  
170    
171      protected:          /**
172          // Instance variables.           * Find a created midi input device index.
173          Engine* pEngine;           */
174          String  Filename;          int GetMidiInputDeviceIndex (MidiInputDevice *pDevice);
         uint    uiInstrument;  
175    
176          // Implementation of virtual method from class Thread.          bool HasSoloChannel();
177          int Main();          void MuteNonSoloChannels();
178            void UnmuteChannels();
179    
180            static std::map<int,String> bufferedNotifies;
181            static Mutex NotifyMutex;
182            static Mutex NotifyBufferMutex;
183            static bool GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter );
184            static void CloseConnection( std::vector<yyparse_param_t>::iterator iter );
185            static std::vector<yyparse_param_t> Sessions;
186            static Mutex SubscriptionMutex;
187            static std::map< LSCPEvent::event_t, std::list<int> > eventSubscriptions;
188            static fd_set fdSet;
189    
190            //Protect main thread that generates real time notify messages
191            //like voice count, stream count and buffer fill
192            //from LSCP server removing engines and channels from underneath
193            static Mutex RTNotifyMutex;
194  };  };
195    
196  #endif // __LSCPSERVER_H_  #endif // __LSCPSERVER_H_
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