/[svn]/linuxsampler/trunk/src/network/lscpserver.h
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revision 137 by capela, Sun Jun 20 16:49:47 2004 UTC revision 2135 by schoenebeck, Thu Sep 30 20:00:43 2010 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 - 2008 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 23  Line 24 
24  #ifndef __LSCPSERVER_H_  #ifndef __LSCPSERVER_H_
25  #define __LSCPSERVER_H_  #define __LSCPSERVER_H_
26    
27    #if defined(WIN32)
28    #include <windows.h>
29    typedef int socklen_t;
30    #else
31  #include <unistd.h>  #include <unistd.h>
32  #include <sys/types.h>  #include <sys/types.h>
33  #include <sys/socket.h>  #include <sys/socket.h>
34    #include <sys/select.h>
35    #include <sys/time.h>
36  #include <netinet/in.h>  #include <netinet/in.h>
37  #include <netinet/tcp.h>  #include <netinet/tcp.h>
38  #include <arpa/inet.h>  #include <arpa/inet.h>
39  #include <netdb.h>  #include <netdb.h>
40    #endif
41    
42    #include <list>
43    
44  #include "lscp.h"  #include "lscp.h"
45  #include "lscpparser.h"  #include "lscpparser.h"
46    #include "lscpevent.h"
47  #include "../Sampler.h"  #include "../Sampler.h"
48  #include "../common/Thread.h"  #include "../common/Thread.h"
49    #include "../common/Mutex.h"
50    #include "../common/Condition.h"
51    #include "../common/global_private.h"
52    
53    #include "../drivers/midi/MidiInstrumentMapper.h"
54    #include "../drivers/midi/VirtualMidiDevice.h"
55    
56    #if HAVE_SQLITE3
57    #include "../db/InstrumentsDb.h"
58    #endif
59    
60  /// TCP Port on which the server should listen for connection requests.  /// TCP Port on which the server should listen for connection requests.
61    #define LSCP_ADDR INADDR_ANY
62  #define LSCP_PORT 8888  #define LSCP_PORT 8888
63    
64  using namespace LinuxSampler;  /// try up to 3 minutes to bind server socket
65    #define LSCP_SERVER_BIND_TIMEOUT 180
 /// 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).  
 extern int hSession;  
66    
67  // External references to the main scanner and parser functions  // External references to the main scanner and parser functions
68  extern int yyparse(void* YYPARSE_PARAM);  extern int yyparse(void* YYPARSE_PARAM);
69  extern int yylex_init(yyscan_t* scanner);  
70  extern int yylex_destroy(yyscan_t yyscanner);  namespace LinuxSampler {
71    
72    extern void restart(yyparse_param_t* pparam, int& yychar);
73    
74  /**  /**
75   * Network server for the LinuxSampler Control Protocol (LSCP).   * Network server for the LinuxSampler Control Protocol (LSCP).
76   */   */
77  class LSCPServer : public Thread {  class LSCPServer : public Thread {
78      public:      public:
79          LSCPServer(Sampler* pSampler);          LSCPServer(Sampler* pSampler, long int addr, short int port);
80            virtual ~LSCPServer();
81            int WaitUntilInitialized(long TimeoutSeconds = 0L, long TimeoutNanoSeconds = 0L);
82            void RemoveListeners();
83    
84          // Methods called by the parser          // Methods called by the parser
         String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters);  
85          String DestroyAudioOutputDevice(uint DeviceIndex);          String DestroyAudioOutputDevice(uint DeviceIndex);
86            String DestroyMidiInputDevice(uint DeviceIndex);
87          String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground = false);          String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground = false);
88          String LoadEngine(String EngineName, uint uiSamplerChannel);          String SetEngineType(String EngineName, uint uiSamplerChannel);
89          String GetChannels();          String GetChannels();
90            String ListChannels();
91          String AddChannel();          String AddChannel();
92          String RemoveChannel(uint uiSamplerChannel);          String RemoveChannel(uint uiSamplerChannel);
93          String GetAvailableEngines();          String GetAvailableEngines();
94            String ListAvailableEngines();
95          String GetEngineInfo(String EngineName);          String GetEngineInfo(String EngineName);
96          String GetChannelInfo(uint uiSamplerChannel);          String GetChannelInfo(uint uiSamplerChannel);
97          String GetVoiceCount(uint uiSamplerChannel);          String GetVoiceCount(uint uiSamplerChannel);
98          String GetStreamCount(uint uiSamplerChannel);          String GetStreamCount(uint uiSamplerChannel);
99          String GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel);          String GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel);
100          String GetAvailableAudioOutputDrivers();          String GetAvailableAudioOutputDrivers();
101            String ListAvailableAudioOutputDrivers();
102            String GetAvailableMidiInputDrivers();
103            String ListAvailableMidiInputDrivers();
104          String GetAudioOutputDriverInfo(String Driver);          String GetAudioOutputDriverInfo(String Driver);
105            String GetMidiInputDriverInfo(String Driver);
106  #ifdef __GNUC__  #ifdef __GNUC__
107          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)
108          String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());          String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
109            String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
110            String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = StringMap());
111            String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = StringMap());
112  #else  #else
113          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>());
114            String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
115            String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
116            String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
117  #endif // __GNUC__  #endif // __GNUC__
118          String GetAudioOutputDeviceCount();          String GetAudioOutputDeviceCount();
119            String GetMidiInputDeviceCount();
120          String GetAudioOutputDevices();          String GetAudioOutputDevices();
121            String GetMidiInputDevices();
122          String GetAudioOutputDeviceInfo(uint DeviceIndex);          String GetAudioOutputDeviceInfo(uint DeviceIndex);
123            String GetMidiInputDeviceInfo(uint DeviceIndex);
124            String GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex);
125            String GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName);
126          String GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId);          String GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId);
127          String GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName);          String GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName);
128          String SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal);          String SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal);
129          String SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);          String SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
130            String SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
131            String SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal);
132          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);  
133          String SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel);          String SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel);
134          String SetVolume(double Volume, uint uiSamplerChannel);          String SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel);
135            String SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel);
136            String SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel);
137            String SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel);
138            String SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel);
139            String SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel);
140            String SetVolume(double dVolume, uint uiSamplerChannel);
141            String SetChannelMute(bool bMute, uint uiSamplerChannel);
142            String SetChannelSolo(bool bSolo, uint uiSamplerChannel);
143            String AddOrReplaceMIDIInstrumentMapping(uint MidiMapID, uint MidiBank, uint MidiProg, String EngineType, String InstrumentFile, uint InstrumentIndex, float Volume, MidiInstrumentMapper::mode_t LoadMode, String Name, bool bModal);
144            String RemoveMIDIInstrumentMapping(uint MidiMapID, uint MidiBank, uint MidiProg);
145            String GetMidiInstrumentMappings(uint MidiMapID);
146            String GetAllMidiInstrumentMappings();
147            String GetMidiInstrumentMapping(uint MidiMapID, uint MidiBank, uint MidiProg);
148            String ListMidiInstrumentMappings(uint MidiMapID);
149            String ListAllMidiInstrumentMappings();
150            String ClearMidiInstrumentMappings(uint MidiMapID);
151            String ClearAllMidiInstrumentMappings();
152            String AddMidiInstrumentMap(String MapName = "");
153            String RemoveMidiInstrumentMap(uint MidiMapID);
154            String RemoveAllMidiInstrumentMaps();
155            String GetMidiInstrumentMaps();
156            String ListMidiInstrumentMaps();
157            String GetMidiInstrumentMap(uint MidiMapID);
158            String SetMidiInstrumentMapName(uint MidiMapID, String NewName);
159            String SetChannelMap(uint uiSamplerChannel, int MidiMapID);
160            String CreateFxSend(uint uiSamplerChannel, uint MidiCtrl, String Name = "");
161            String DestroyFxSend(uint uiSamplerChannel, uint FxSendID);
162            String GetFxSends(uint uiSamplerChannel);
163            String ListFxSends(uint uiSamplerChannel);
164            String GetFxSendInfo(uint uiSamplerChannel, uint FxSendID);
165            String SetFxSendName(uint uiSamplerChannel, uint FxSendID, String Name);
166            String SetFxSendAudioOutputChannel(uint uiSamplerChannel, uint FxSendID, uint FxSendChannel, uint DeviceChannel);
167            String SetFxSendMidiController(uint uiSamplerChannel, uint FxSendID, uint MidiController);
168            String SetFxSendLevel(uint uiSamplerChannel, uint FxSendID, double dLevel);
169    
170            // effect commands
171            String GetAvailableEffects();
172            String ListAvailableEffects();
173            String GetEffectInfo(int iEffectIndex);
174            String CreateEffectInstance(int index);
175            String CreateEffectInstance(String effectSystem, String module, String effectName);
176            String DestroyEffectInstance(int iEffectID);
177            String GetEffectInstances();
178            String ListEffectInstances();
179            String GetEffectInstanceInfo(int iEffectInstanceIndex);
180            String GetEffectInstanceInputControlInfo(int iEffectInstanceIndex, int iInputControlIndex);
181            String SetEffectInstanceInputControl(int iEffectInstanceIndex, int iInputControlIndex, double dValue);
182            String GetMasterEffectChains(int iAudioOutputDevice);
183            String ListMasterEffectChains(int iAudioOutputDevice);
184            String AddMasterEffectChain(int iAudioOutputDevice);
185            String RemoveMasterEffectChain(int iAudioOutputDevice, int iMasterEffectChain);
186            String GetMasterEffectChainInfo(int iAudioOutputDevice, int iMasterEffectChain);
187            String AppendMasterEffectChainEffect(int iAudioOutputDevice, int iMasterEffectChain, int iEffectInstance);
188            String InsertMasterEffectChainEffect(int iAudioOutputDevice, int iMasterEffectChain, int iEffectInstance, int iEffectChainPosition);
189            String RemoveMasterEffectChainEffect(int iAudioOutputDevice, int iMasterEffectChain, int iEffectInstance);
190    
191            String AddDbInstrumentDirectory(String Dir);
192            String RemoveDbInstrumentDirectory(String Dir, bool Force = false);
193            String GetDbInstrumentDirectoryCount(String Dir, bool Recursive = false);
194            String GetDbInstrumentDirectories(String Dir, bool Recursive = false);
195            String GetDbInstrumentDirectoryInfo(String Dir);
196            String SetDbInstrumentDirectoryName(String Dir, String Name);
197            String MoveDbInstrumentDirectory(String Dir, String Dst);
198            String CopyDbInstrumentDirectory(String Dir, String Dst);
199            String SetDbInstrumentDirectoryDescription(String Dir, String Desc);
200            String FindDbInstrumentDirectories(String Dir, std::map<String,String> Parameters, bool Recursive = true);
201            String AddDbInstruments(String DbDir, String FilePath, int Index = -1, bool bBackground = false);
202            String AddDbInstruments(String ScanMode, String DbDir, String FsDir, bool bBackground = false, bool insDir = false);
203            String RemoveDbInstrument(String Instr);
204            String GetDbInstrumentCount(String Dir, bool Recursive = false);
205            String GetDbInstruments(String Dir, bool Recursive = false);
206            String GetDbInstrumentInfo(String Instr);
207            String SetDbInstrumentName(String Instr, String Name);
208            String MoveDbInstrument(String Instr, String Dst);
209            String CopyDbInstrument(String Instr, String Dst);
210            String SetDbInstrumentDescription(String Instr, String Desc);
211            String SetDbInstrumentFilePath(String OldPath, String NewPath);
212            String FindLostDbInstrumentFiles();
213            String FindDbInstruments(String Dir, std::map<String,String> Parameters, bool Recursive = true);
214            String FormatInstrumentsDb();
215            String EditSamplerChannelInstrument(uint uiSamplerChannel);
216            String GetDbInstrumentsJobInfo(int JobId);
217          String ResetChannel(uint uiSamplerChannel);          String ResetChannel(uint uiSamplerChannel);
218          String SubscribeNotification(event_t Event);          String ResetSampler();
219          String UnsubscribeNotification(event_t Event);          String GetServerInfo();
220            String GetTotalStreamCount();
221            String GetTotalVoiceCount();
222            String GetTotalVoiceCountMax();
223            String GetGlobalMaxVoices();
224            String SetGlobalMaxVoices(int iVoices);
225            String GetGlobalMaxStreams();
226            String SetGlobalMaxStreams(int iStreams);
227            String GetGlobalVolume();
228            String SetGlobalVolume(double dVolume);
229            String GetFileInstruments(String Filename);
230            String ListFileInstruments(String Filename);
231            String GetFileInstrumentInfo(String Filename, uint InstrumentID);
232            String SendChannelMidiData(String MidiMsg, uint uiSamplerChannel, uint Arg1, uint Arg2);
233            String SubscribeNotification(LSCPEvent::event_t);
234            String UnsubscribeNotification(LSCPEvent::event_t);
235            String SetEcho(yyparse_param_t* pSession, double boolean_value);
236          void   AnswerClient(String ReturnMessage);          void   AnswerClient(String ReturnMessage);
237            void   CloseAllConnections();
238    
239            static int currentSocket;
240            static std::map<int,String> bufferedCommands;
241    
242            static void SendLSCPNotify( LSCPEvent Event );
243            static int EventSubscribers( std::list<LSCPEvent::event_t> events );
244        static void LockRTNotify();
245        static void UnlockRTNotify();
246        static String FilterEndlines(String s);
247    
248      protected:      protected:
249          int            hSocket;          int            hSocket;
250          sockaddr_in    SocketAddress;          sockaddr_in    SocketAddress;
251          Sampler*       pSampler;          Sampler*       pSampler;
252            Condition      Initialized;
253    
254          int Main(); ///< Implementation of virtual method from class Thread          int Main(); ///< Implementation of virtual method from class Thread
255    
256      private:      private:
257    
258          /**          /**
259           * Converts a result_t structure into a valid LSCP answer message.           * Find a created audio output device index.
260           */           */
261          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();  
         }  
 };  
262    
263            /**
264             * Find a created midi input device index.
265             */
266            int GetMidiInputDeviceIndex (MidiInputDevice *pDevice);
267    
268  /**          EngineChannel* GetEngineChannel(uint uiSamplerChannel);
  * Instrument loader thread for the LinuxSampler Control Protocol (LSCP).  
  */  
 class LSCPLoadInstrument : public Thread {  
269    
270      public:                  /**
271          LSCPLoadInstrument(Engine* pEngine, String Filename, uint uiInstrument);                   * Gets the specified effect send on the specified sampler channel.
272                     */
273                    FxSend* GetFxSend(uint uiSamplerChannel, uint FxSendID);
274    
275            bool HasSoloChannel();
276            void MuteNonSoloChannels();
277            void UnmuteChannels();
278    
279      protected:          /**
280          // Instance variables.           * Throws an exception if the specified file is not found or
281          Engine* pEngine;           * if directory is specified.
282          String  Filename;           */
283          uint    uiInstrument;          static void VerifyFile(String Filename);
284    
285          // Implementation of virtual method from class Thread.          static std::map<int,String> bufferedNotifies;
286          int Main();          static Mutex NotifyMutex;
287            static Mutex NotifyBufferMutex;
288            static bool GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter );
289            static void CloseConnection( std::vector<yyparse_param_t>::iterator iter );
290            static std::vector<yyparse_param_t> Sessions;
291            static Mutex SubscriptionMutex;
292            static std::map< LSCPEvent::event_t, std::list<int> > eventSubscriptions;
293            static fd_set fdSet;
294    
295            //Protect main thread that generates real time notify messages
296            //like voice count, stream count and buffer fill
297            //from LSCP server removing engines and channels from underneath
298            static Mutex RTNotifyMutex;
299    
300            class EventHandler : public ChannelCountListener, public AudioDeviceCountListener,
301                public MidiDeviceCountListener, public MidiInstrumentCountListener,
302                public MidiInstrumentInfoListener, public MidiInstrumentMapCountListener,
303                public MidiInstrumentMapInfoListener, public FxSendCountListener,
304                public VoiceCountListener, public StreamCountListener, public BufferFillListener,
305                public TotalStreamCountListener, public TotalVoiceCountListener,
306                public EngineChangeListener, public MidiPortCountListener {
307    
308                public:
309                    EventHandler(LSCPServer* pParent);
310    
311                    /**
312                     * Invoked when the number of sampler channels has changed.
313                     * @param NewCount The new number of sampler channels.
314                     */
315                    virtual void ChannelCountChanged(int NewCount);
316                    virtual void ChannelAdded(SamplerChannel* pChannel);
317                    virtual void ChannelToBeRemoved(SamplerChannel* pChannel);
318    
319                    /**
320                     * Invoked when the number of audio output devices has changed.
321                     * @param NewCount The new number of audio output devices.
322                     */
323                    virtual void AudioDeviceCountChanged(int NewCount);
324    
325                    /**
326                     * Invoked when the number of MIDI input devices has changed.
327                     * @param NewCount The new number of MIDI input devices.
328                     */
329                    virtual void MidiDeviceCountChanged(int NewCount);
330    
331                    /**
332                     * Invoked right before the supplied MIDI input device is going
333                     * to be destroyed.
334                     * @param pDevice MidiInputDevice to be deleted
335                     */
336                    virtual void MidiDeviceToBeDestroyed(MidiInputDevice* pDevice);
337    
338                    /**
339                     * Invoked to inform that a new MidiInputDevice has just been
340                     * created.
341                     * @param pDevice newly created MidiInputDevice
342                     */
343                    virtual void MidiDeviceCreated(MidiInputDevice* pDevice);
344    
345                    /**
346                     * Invoked when the number of MIDI input ports has changed.
347                     * @param NewCount The new number of MIDI input ports.
348                     */
349                    virtual void MidiPortCountChanged(int NewCount);
350    
351                    /**
352                     * Invoked right before the supplied MIDI input port is going
353                     * to be destroyed.
354                     * @param pPort MidiInputPort to be deleted
355                     */
356                    virtual void MidiPortToBeRemoved(MidiInputPort* pPort);
357    
358                    /**
359                     * Invoked to inform that a new MidiInputPort has just been
360                     * added.
361                     * @param pPort newly created MidiInputPort
362                     */
363                    virtual void MidiPortAdded(MidiInputPort* pPort);
364    
365                    /**
366                     * Invoked when the number of MIDI instruments has changed.
367                     * @param MapId The numerical ID of the MIDI instrument map.
368                     * @param NewCount The new number of MIDI instruments.
369                     */
370                    virtual void MidiInstrumentCountChanged(int MapId, int NewCount);
371    
372                    /**
373                     * Invoked when a MIDI instrument in a MIDI instrument map is changed.
374                     * @param MapId The numerical ID of the MIDI instrument map.
375                     * @param Bank The index of the MIDI bank, containing the instrument.
376                     * @param Program The MIDI program number of the instrument.
377                     */
378                    virtual void MidiInstrumentInfoChanged(int MapId, int Bank, int Program);
379    
380                    /**
381                     * Invoked when the number of MIDI instrument maps has changed.
382                     * @param NewCount The new number of MIDI instruments.
383                     */
384                    virtual void MidiInstrumentMapCountChanged(int NewCount);
385    
386                    /**
387                     * Invoked when the settings of a MIDI instrument map are changed.
388                     * @param MapId The numerical ID of the MIDI instrument map.
389                     */
390                    virtual void MidiInstrumentMapInfoChanged(int MapId);
391    
392                    /**
393                     * Invoked when the number of effect sends
394                     * on the specified sampler channel has changed.
395                     * @param ChannelId The numerical ID of the sampler channel.
396                     * @param NewCount The new number of effect sends.
397                     */
398                    virtual void FxSendCountChanged(int ChannelId, int NewCount);
399    
400                    /**
401                     * Invoked when the number of active voices
402                     * on the specified sampler channel has changed.
403                     * @param ChannelId The numerical ID of the sampler channel.
404                     * @param NewCount The new number of active voices.
405                     */
406                    virtual void VoiceCountChanged(int ChannelId, int NewCount);
407    
408                    /**
409                     * Invoked when the number of active disk streams
410                     * on the specified sampler channel has changed.
411                     * @param ChannelId The numerical ID of the sampler channel.
412                     * @param NewCount The new number of active disk streams.
413                     */
414                    virtual void StreamCountChanged(int ChannelId, int NewCount);
415    
416                    /**
417                     * Invoked when the fill state of the disk stream
418                     * buffers on the specified sampler channel is changed.
419                     * @param ChannelId The numerical ID of the sampler channel.
420                     * @param FillData The buffer fill data for the specified sampler channel.
421                     */
422                    virtual void BufferFillChanged(int ChannelId, String FillData);
423    
424                    /**
425                     * Invoked when the total number of active voices is changed.
426                     * @param NewCount The new number of active voices.
427                     */
428                    virtual void TotalVoiceCountChanged(int NewCount);
429                    virtual void TotalStreamCountChanged(int NewCount);
430    
431                    virtual void EngineToBeChanged(int ChannelId);
432                    virtual void EngineChanged(int ChannelId);
433    
434                    virtual ~EventHandler();
435    
436                    struct midi_listener_entry {
437                        SamplerChannel* pSamplerChannel;
438                        EngineChannel* pEngineChannel;
439                        VirtualMidiDevice* pMidiListener;
440                    };
441    
442                    std::vector<midi_listener_entry> channelMidiListeners;
443    
444                    struct device_midi_listener_entry {
445                        MidiInputPort* pPort;
446                        VirtualMidiDevice* pMidiListener;
447                        uint uiDeviceID;
448                    };
449    
450                    std::vector<device_midi_listener_entry> deviceMidiListeners;
451    
452                private:
453                    LSCPServer* pParent;
454            } eventHandler;
455    
456    #if HAVE_SQLITE3
457            class DbInstrumentsEventHandler : public InstrumentsDb::Listener {
458                public:
459                    virtual void DirectoryCountChanged(String Dir);
460                    virtual void DirectoryInfoChanged(String Dir);
461                    virtual void DirectoryNameChanged(String Dir, String NewName);
462                    virtual void InstrumentCountChanged(String Dir);
463                    virtual void InstrumentInfoChanged(String Instr);
464                    virtual void InstrumentNameChanged(String Instr, String NewName);
465                    virtual void JobStatusChanged(int JobId);
466            } dbInstrumentsEventHandler;
467    #endif // HAVE_SQLITE3
468  };  };
469    
470    }
471    
472  #endif // __LSCPSERVER_H_  #endif // __LSCPSERVER_H_
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