/[svn]/linuxsampler/trunk/src/network/lscpserver.h
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revision 135 by senkov, Sun Jun 20 16:01:50 2004 UTC revision 2515 by schoenebeck, Wed Feb 5 20:45:18 2014 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 - 2014 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 LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel);          String DestroyMidiInputDevice(uint DeviceIndex);
87          String LoadEngine(String EngineName, uint uiSamplerChannel);          String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground = false);
88            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 AddChannelMidiInput(uint uiSamplerChannel, uint MIDIDeviceId, uint MIDIPort = 0);
136            String RemoveChannelMidiInput(uint uiSamplerChannel);
137            String RemoveChannelMidiInput(uint uiSamplerChannel, uint MIDIDeviceId);
138            String RemoveChannelMidiInput(uint uiSamplerChannel, uint MIDIDeviceId, uint MIDIPort);
139            String ListChannelMidiInputs(uint uiSamplerChannel);
140            String SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel);
141            String SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel);
142            String SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel);
143            String SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel);
144            String SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel);
145            String SetVolume(double dVolume, uint uiSamplerChannel);
146            String SetChannelMute(bool bMute, uint uiSamplerChannel);
147            String SetChannelSolo(bool bSolo, uint uiSamplerChannel);
148            String AddOrReplaceMIDIInstrumentMapping(uint MidiMapID, uint MidiBank, uint MidiProg, String EngineType, String InstrumentFile, uint InstrumentIndex, float Volume, MidiInstrumentMapper::mode_t LoadMode, String Name, bool bModal);
149            String RemoveMIDIInstrumentMapping(uint MidiMapID, uint MidiBank, uint MidiProg);
150            String GetMidiInstrumentMappings(uint MidiMapID);
151            String GetAllMidiInstrumentMappings();
152            String GetMidiInstrumentMapping(uint MidiMapID, uint MidiBank, uint MidiProg);
153            String ListMidiInstrumentMappings(uint MidiMapID);
154            String ListAllMidiInstrumentMappings();
155            String ClearMidiInstrumentMappings(uint MidiMapID);
156            String ClearAllMidiInstrumentMappings();
157            String AddMidiInstrumentMap(String MapName = "");
158            String RemoveMidiInstrumentMap(uint MidiMapID);
159            String RemoveAllMidiInstrumentMaps();
160            String GetMidiInstrumentMaps();
161            String ListMidiInstrumentMaps();
162            String GetMidiInstrumentMap(uint MidiMapID);
163            String SetMidiInstrumentMapName(uint MidiMapID, String NewName);
164            String SetChannelMap(uint uiSamplerChannel, int MidiMapID);
165            String CreateFxSend(uint uiSamplerChannel, uint MidiCtrl, String Name = "");
166            String DestroyFxSend(uint uiSamplerChannel, uint FxSendID);
167            String GetFxSends(uint uiSamplerChannel);
168            String ListFxSends(uint uiSamplerChannel);
169            String GetFxSendInfo(uint uiSamplerChannel, uint FxSendID);
170            String SetFxSendName(uint uiSamplerChannel, uint FxSendID, String Name);
171            String SetFxSendAudioOutputChannel(uint uiSamplerChannel, uint FxSendID, uint FxSendChannel, uint DeviceChannel);
172            String SetFxSendMidiController(uint uiSamplerChannel, uint FxSendID, uint MidiController);
173            String SetFxSendLevel(uint uiSamplerChannel, uint FxSendID, double dLevel);
174            String SetFxSendEffect(uint uiSamplerChannel, uint FxSendID, int iSendEffectChain, int iEffectChainPosition);
175    
176            // effect commands
177            String GetAvailableEffects();
178            String ListAvailableEffects();
179            String GetEffectInfo(int iEffectIndex);
180            String CreateEffectInstance(int iEffectIndex);
181            String CreateEffectInstance(String effectSystem, String module, String effectName);
182            String DestroyEffectInstance(int iEffectInstance);
183            String GetEffectInstances();
184            String ListEffectInstances();
185            String GetEffectInstanceInfo(int iEffectInstance);
186            String GetEffectInstanceInputControlInfo(int iEffectInstance, int iInputControlIndex);
187            String SetEffectInstanceInputControlValue(int iEffectInstance, int iInputControlIndex, double dValue);
188            String GetSendEffectChains(int iAudioOutputDevice);
189            String ListSendEffectChains(int iAudioOutputDevice);
190            String AddSendEffectChain(int iAudioOutputDevice);
191            String RemoveSendEffectChain(int iAudioOutputDevice, int iSendEffectChain);
192            String GetSendEffectChainInfo(int iAudioOutputDevice, int iSendEffectChain);
193            String AppendSendEffectChainEffect(int iAudioOutputDevice, int iSendEffectChain, int iEffectInstance);
194            String InsertSendEffectChainEffect(int iAudioOutputDevice, int iSendEffectChain, int iEffectChainPosition, int iEffectInstance);
195            String RemoveSendEffectChainEffect(int iAudioOutputDevice, int iSendEffectChain, int iEffectChainPosition);
196    
197            String AddDbInstrumentDirectory(String Dir);
198            String RemoveDbInstrumentDirectory(String Dir, bool Force = false);
199            String GetDbInstrumentDirectoryCount(String Dir, bool Recursive = false);
200            String GetDbInstrumentDirectories(String Dir, bool Recursive = false);
201            String GetDbInstrumentDirectoryInfo(String Dir);
202            String SetDbInstrumentDirectoryName(String Dir, String Name);
203            String MoveDbInstrumentDirectory(String Dir, String Dst);
204            String CopyDbInstrumentDirectory(String Dir, String Dst);
205            String SetDbInstrumentDirectoryDescription(String Dir, String Desc);
206            String FindDbInstrumentDirectories(String Dir, std::map<String,String> Parameters, bool Recursive = true);
207            String AddDbInstruments(String DbDir, String FilePath, int Index = -1, bool bBackground = false);
208            String AddDbInstruments(String ScanMode, String DbDir, String FsDir, bool bBackground = false, bool insDir = false);
209            String RemoveDbInstrument(String Instr);
210            String GetDbInstrumentCount(String Dir, bool Recursive = false);
211            String GetDbInstruments(String Dir, bool Recursive = false);
212            String GetDbInstrumentInfo(String Instr);
213            String SetDbInstrumentName(String Instr, String Name);
214            String MoveDbInstrument(String Instr, String Dst);
215            String CopyDbInstrument(String Instr, String Dst);
216            String SetDbInstrumentDescription(String Instr, String Desc);
217            String SetDbInstrumentFilePath(String OldPath, String NewPath);
218            String FindLostDbInstrumentFiles();
219            String FindDbInstruments(String Dir, std::map<String,String> Parameters, bool Recursive = true);
220            String FormatInstrumentsDb();
221            String EditSamplerChannelInstrument(uint uiSamplerChannel);
222            String GetDbInstrumentsJobInfo(int JobId);
223          String ResetChannel(uint uiSamplerChannel);          String ResetChannel(uint uiSamplerChannel);
224          String SubscribeNotification(event_t Event);          String ResetSampler();
225          String UnsubscribeNotification(event_t Event);          String GetServerInfo();
226            String GetTotalStreamCount();
227            String GetTotalVoiceCount();
228            String GetTotalVoiceCountMax();
229            String GetGlobalMaxVoices();
230            String SetGlobalMaxVoices(int iVoices);
231            String GetGlobalMaxStreams();
232            String SetGlobalMaxStreams(int iStreams);
233            String GetGlobalVolume();
234            String SetGlobalVolume(double dVolume);
235            String GetFileInstruments(String Filename);
236            String ListFileInstruments(String Filename);
237            String GetFileInstrumentInfo(String Filename, uint InstrumentID);
238            String SendChannelMidiData(String MidiMsg, uint uiSamplerChannel, uint Arg1, uint Arg2);
239            String SubscribeNotification(LSCPEvent::event_t);
240            String UnsubscribeNotification(LSCPEvent::event_t);
241            String SetEcho(yyparse_param_t* pSession, double boolean_value);
242            String SetShellInteract(yyparse_param_t* pSession, double boolean_value);
243          void   AnswerClient(String ReturnMessage);          void   AnswerClient(String ReturnMessage);
244            void   CloseAllConnections();
245    
246            static int currentSocket;
247            static std::map<int,String> bufferedCommands;
248    
249            static void SendLSCPNotify( LSCPEvent Event );
250            static int EventSubscribers( std::list<LSCPEvent::event_t> events );
251            static String FilterEndlines(String s);
252    
253            //Protect main thread that generates real time notify messages
254            //like voice count, stream count and buffer fill
255            //from LSCP server removing engines and channels from underneath
256            static Mutex RTNotifyMutex;
257    
258      protected:      protected:
259          int            hSocket;          int            hSocket;
260          sockaddr_in    SocketAddress;          sockaddr_in    SocketAddress;
261          Sampler*       pSampler;          Sampler*       pSampler;
262            Condition      Initialized;
263    
264          int Main(); ///< Implementation of virtual method from class Thread          int Main(); ///< Implementation of virtual method from class Thread
265    
266      private:      private:
267    
268          /**          /**
269           * Converts a result_t structure into a valid LSCP answer message.           * Find a created audio output device index.
270           */           */
271          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();  
         }  
 };  
272    
273            /**
274             * Find a created midi input device index.
275             */
276            int GetMidiInputDeviceIndex (MidiInputDevice *pDevice);
277    
278  /**          EngineChannel* GetEngineChannel(uint uiSamplerChannel);
  * Instrument loader thread for the LinuxSampler Control Protocol (LSCP).  
  */  
 class LSCPLoadInstrument : public Thread {  
279    
280      public:                  /**
281          LSCPLoadInstrument(Engine* pEngine, String Filename, uint uiInstrument);                   * Gets the specified effect send on the specified sampler channel.
282                     */
283                    FxSend* GetFxSend(uint uiSamplerChannel, uint FxSendID);
284    
285            bool HasSoloChannel();
286            void MuteNonSoloChannels();
287            void UnmuteChannels();
288    
289      protected:          /**
290          // Instance variables.           * Throws an exception if the specified file is not found or
291          Engine* pEngine;           * if directory is specified.
292          String  Filename;           */
293          uint    uiInstrument;          static void VerifyFile(String Filename);
294    
295          // Implementation of virtual method from class Thread.          static std::map<int,String> bufferedNotifies;
296          int Main();          static Mutex NotifyMutex;
297            static Mutex NotifyBufferMutex;
298            bool GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter );
299            static void CloseConnection( std::vector<yyparse_param_t>::iterator iter );
300            static std::vector<yyparse_param_t> Sessions;
301            static Mutex SubscriptionMutex;
302            static std::map< LSCPEvent::event_t, std::list<int> > eventSubscriptions;
303            static fd_set fdSet;
304    
305            class EventHandler : public ChannelCountListener, public AudioDeviceCountListener,
306                public MidiDeviceCountListener, public MidiInstrumentCountListener,
307                public MidiInstrumentInfoListener, public MidiInstrumentMapCountListener,
308                public MidiInstrumentMapInfoListener, public FxSendCountListener,
309                public VoiceCountListener, public StreamCountListener, public BufferFillListener,
310                public TotalStreamCountListener, public TotalVoiceCountListener,
311                public EngineChangeListener, public MidiPortCountListener {
312    
313                public:
314                    EventHandler(LSCPServer* pParent);
315    
316                    /**
317                     * Invoked when the number of sampler channels has changed.
318                     * @param NewCount The new number of sampler channels.
319                     */
320                    virtual void ChannelCountChanged(int NewCount);
321                    virtual void ChannelAdded(SamplerChannel* pChannel);
322                    virtual void ChannelToBeRemoved(SamplerChannel* pChannel);
323    
324                    /**
325                     * Invoked when the number of audio output devices has changed.
326                     * @param NewCount The new number of audio output devices.
327                     */
328                    virtual void AudioDeviceCountChanged(int NewCount);
329    
330                    /**
331                     * Invoked when the number of MIDI input devices has changed.
332                     * @param NewCount The new number of MIDI input devices.
333                     */
334                    virtual void MidiDeviceCountChanged(int NewCount);
335    
336                    /**
337                     * Invoked right before the supplied MIDI input device is going
338                     * to be destroyed.
339                     * @param pDevice MidiInputDevice to be deleted
340                     */
341                    virtual void MidiDeviceToBeDestroyed(MidiInputDevice* pDevice);
342    
343                    /**
344                     * Invoked to inform that a new MidiInputDevice has just been
345                     * created.
346                     * @param pDevice newly created MidiInputDevice
347                     */
348                    virtual void MidiDeviceCreated(MidiInputDevice* pDevice);
349    
350                    /**
351                     * Invoked when the number of MIDI input ports has changed.
352                     * @param NewCount The new number of MIDI input ports.
353                     */
354                    virtual void MidiPortCountChanged(int NewCount);
355    
356                    /**
357                     * Invoked right before the supplied MIDI input port is going
358                     * to be destroyed.
359                     * @param pPort MidiInputPort to be deleted
360                     */
361                    virtual void MidiPortToBeRemoved(MidiInputPort* pPort);
362    
363                    /**
364                     * Invoked to inform that a new MidiInputPort has just been
365                     * added.
366                     * @param pPort newly created MidiInputPort
367                     */
368                    virtual void MidiPortAdded(MidiInputPort* pPort);
369    
370                    /**
371                     * Invoked when the number of MIDI instruments has changed.
372                     * @param MapId The numerical ID of the MIDI instrument map.
373                     * @param NewCount The new number of MIDI instruments.
374                     */
375                    virtual void MidiInstrumentCountChanged(int MapId, int NewCount);
376    
377                    /**
378                     * Invoked when a MIDI instrument in a MIDI instrument map is changed.
379                     * @param MapId The numerical ID of the MIDI instrument map.
380                     * @param Bank The index of the MIDI bank, containing the instrument.
381                     * @param Program The MIDI program number of the instrument.
382                     */
383                    virtual void MidiInstrumentInfoChanged(int MapId, int Bank, int Program);
384    
385                    /**
386                     * Invoked when the number of MIDI instrument maps has changed.
387                     * @param NewCount The new number of MIDI instruments.
388                     */
389                    virtual void MidiInstrumentMapCountChanged(int NewCount);
390    
391                    /**
392                     * Invoked when the settings of a MIDI instrument map are changed.
393                     * @param MapId The numerical ID of the MIDI instrument map.
394                     */
395                    virtual void MidiInstrumentMapInfoChanged(int MapId);
396    
397                    /**
398                     * Invoked when the number of effect sends
399                     * on the specified sampler channel has changed.
400                     * @param ChannelId The numerical ID of the sampler channel.
401                     * @param NewCount The new number of effect sends.
402                     */
403                    virtual void FxSendCountChanged(int ChannelId, int NewCount);
404    
405                    /**
406                     * Invoked when the number of active voices
407                     * on the specified sampler channel has changed.
408                     * @param ChannelId The numerical ID of the sampler channel.
409                     * @param NewCount The new number of active voices.
410                     */
411                    virtual void VoiceCountChanged(int ChannelId, int NewCount);
412    
413                    /**
414                     * Invoked when the number of active disk streams
415                     * on the specified sampler channel has changed.
416                     * @param ChannelId The numerical ID of the sampler channel.
417                     * @param NewCount The new number of active disk streams.
418                     */
419                    virtual void StreamCountChanged(int ChannelId, int NewCount);
420    
421                    /**
422                     * Invoked when the fill state of the disk stream
423                     * buffers on the specified sampler channel is changed.
424                     * @param ChannelId The numerical ID of the sampler channel.
425                     * @param FillData The buffer fill data for the specified sampler channel.
426                     */
427                    virtual void BufferFillChanged(int ChannelId, String FillData);
428    
429                    /**
430                     * Invoked when the total number of active voices is changed.
431                     * @param NewCount The new number of active voices.
432                     */
433                    virtual void TotalVoiceCountChanged(int NewCount);
434                    virtual void TotalStreamCountChanged(int NewCount);
435    
436                    virtual void EngineToBeChanged(int ChannelId);
437                    virtual void EngineChanged(int ChannelId);
438    
439                    virtual ~EventHandler();
440    
441                    struct midi_listener_entry {
442                        SamplerChannel* pSamplerChannel;
443                        EngineChannel* pEngineChannel;
444                        VirtualMidiDevice* pMidiListener;
445                    };
446    
447                    std::vector<midi_listener_entry> channelMidiListeners;
448    
449                    struct device_midi_listener_entry {
450                        MidiInputPort* pPort;
451                        VirtualMidiDevice* pMidiListener;
452                        uint uiDeviceID;
453                    };
454    
455                    std::vector<device_midi_listener_entry> deviceMidiListeners;
456    
457                private:
458                    LSCPServer* pParent;
459            } eventHandler;
460    
461    #if HAVE_SQLITE3
462            class DbInstrumentsEventHandler : public InstrumentsDb::Listener {
463                public:
464                    virtual void DirectoryCountChanged(String Dir);
465                    virtual void DirectoryInfoChanged(String Dir);
466                    virtual void DirectoryNameChanged(String Dir, String NewName);
467                    virtual void InstrumentCountChanged(String Dir);
468                    virtual void InstrumentInfoChanged(String Instr);
469                    virtual void InstrumentNameChanged(String Instr, String NewName);
470                    virtual void JobStatusChanged(int JobId);
471            } dbInstrumentsEventHandler;
472    #endif // HAVE_SQLITE3
473  };  };
474    
475    }
476    
477  #endif // __LSCPSERVER_H_  #endif // __LSCPSERVER_H_
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