/[svn]/linuxsampler/trunk/src/network/lscpserver.h
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Contents of /linuxsampler/trunk/src/network/lscpserver.h

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Revision 1200 - (show annotations) (download) (as text)
Thu May 24 14:04:18 2007 UTC (16 years, 10 months ago) by iliev
File MIME type: text/x-c++hdr
File size: 20066 byte(s)
* Implemented instrument scanning in background
  and commands for monitoring the scan progress

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 * Copyright (C) 2005 - 2007 Christian Schoenebeck *
7 * *
8 * 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 *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
12 * *
13 * This library is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
17 * *
18 * You should have received a copy of the GNU General Public License *
19 * along with this library; if not, write to the Free Software *
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21 * MA 02111-1307 USA *
22 ***************************************************************************/
23
24 #ifndef __LSCPSERVER_H_
25 #define __LSCPSERVER_H_
26
27 #include <unistd.h>
28 #include <sys/types.h>
29 #include <sys/socket.h>
30 #include <sys/select.h>
31 #include <sys/time.h>
32 #include <netinet/in.h>
33 #include <netinet/tcp.h>
34 #include <arpa/inet.h>
35 #include <netdb.h>
36
37 #include <list>
38
39 #include "lscp.h"
40 #include "lscpparser.h"
41 #include "lscp.h"
42 #include "lscpevent.h"
43 #include "../Sampler.h"
44 #include "../common/Thread.h"
45 #include "../common/Mutex.h"
46 #include "../common/Condition.h"
47 #include "../common/global.h"
48
49 #include "../drivers/midi/MidiInstrumentMapper.h"
50
51 #if HAVE_SQLITE3
52 #include "../db/InstrumentsDb.h"
53 #endif
54
55 /// TCP Port on which the server should listen for connection requests.
56 #define LSCP_ADDR INADDR_ANY
57 #define LSCP_PORT 8888
58
59 /// try up to 3 minutes to bind server socket
60 #define LSCP_SERVER_BIND_TIMEOUT 180
61
62 using namespace LinuxSampler;
63
64 // External references to the main scanner and parser functions
65 extern int yyparse(void* YYPARSE_PARAM);
66 extern void restart(yyparse_param_t* pparam, int& yychar);
67
68 /**
69 * Network server for the LinuxSampler Control Protocol (LSCP).
70 */
71 class LSCPServer : public Thread {
72 public:
73 LSCPServer(Sampler* pSampler, long int addr, short int port);
74 virtual ~LSCPServer();
75 int WaitUntilInitialized(long TimeoutSeconds = 0L, long TimeoutNanoSeconds = 0L);
76
77 // Methods called by the parser
78 String DestroyAudioOutputDevice(uint DeviceIndex);
79 String DestroyMidiInputDevice(uint DeviceIndex);
80 String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground = false);
81 String SetEngineType(String EngineName, uint uiSamplerChannel);
82 String GetChannels();
83 String ListChannels();
84 String AddChannel();
85 String RemoveChannel(uint uiSamplerChannel);
86 String GetAvailableEngines();
87 String ListAvailableEngines();
88 String GetEngineInfo(String EngineName);
89 String GetChannelInfo(uint uiSamplerChannel);
90 String GetVoiceCount(uint uiSamplerChannel);
91 String GetStreamCount(uint uiSamplerChannel);
92 String GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel);
93 String GetAvailableAudioOutputDrivers();
94 String ListAvailableAudioOutputDrivers();
95 String GetAvailableMidiInputDrivers();
96 String ListAvailableMidiInputDrivers();
97 String GetAudioOutputDriverInfo(String Driver);
98 String GetMidiInputDriverInfo(String Driver);
99 #ifdef __GNUC__
100 typedef std::map<String,String> StringMap; // nasty workaround for a GCC bug (see GCC bug #15980, #57)
101 String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
102 String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
103 String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = StringMap());
104 String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = StringMap());
105 #else
106 String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
107 String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
108 String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
109 String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
110 #endif // __GNUC__
111 String GetAudioOutputDeviceCount();
112 String GetMidiInputDeviceCount();
113 String GetAudioOutputDevices();
114 String GetMidiInputDevices();
115 String GetAudioOutputDeviceInfo(uint DeviceIndex);
116 String GetMidiInputDeviceInfo(uint DeviceIndex);
117 String GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex);
118 String GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName);
119 String GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId);
120 String GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName);
121 String SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal);
122 String SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
123 String SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
124 String SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal);
125 String SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel);
126 String SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel);
127 String SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel);
128 String SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel);
129 String SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel);
130 String SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel);
131 String SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel);
132 String SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel);
133 String SetVolume(double dVolume, uint uiSamplerChannel);
134 String SetChannelMute(bool bMute, uint uiSamplerChannel);
135 String SetChannelSolo(bool bSolo, uint uiSamplerChannel);
136 String AddOrReplaceMIDIInstrumentMapping(uint MidiMapID, uint MidiBank, uint MidiProg, String EngineType, String InstrumentFile, uint InstrumentIndex, float Volume, MidiInstrumentMapper::mode_t LoadMode, String Name, bool bModal);
137 String RemoveMIDIInstrumentMapping(uint MidiMapID, uint MidiBank, uint MidiProg);
138 String GetMidiInstrumentMappings(uint MidiMapID);
139 String GetAllMidiInstrumentMappings();
140 String GetMidiInstrumentMapping(uint MidiMapID, uint MidiBank, uint MidiProg);
141 String ListMidiInstrumentMappings(uint MidiMapID);
142 String ListAllMidiInstrumentMappings();
143 String ClearMidiInstrumentMappings(uint MidiMapID);
144 String ClearAllMidiInstrumentMappings();
145 String AddMidiInstrumentMap(String MapName = "");
146 String RemoveMidiInstrumentMap(uint MidiMapID);
147 String RemoveAllMidiInstrumentMaps();
148 String GetMidiInstrumentMaps();
149 String ListMidiInstrumentMaps();
150 String GetMidiInstrumentMap(uint MidiMapID);
151 String SetMidiInstrumentMapName(uint MidiMapID, String NewName);
152 String SetChannelMap(uint uiSamplerChannel, int MidiMapID);
153 String CreateFxSend(uint uiSamplerChannel, uint MidiCtrl, String Name = "");
154 String DestroyFxSend(uint uiSamplerChannel, uint FxSendID);
155 String GetFxSends(uint uiSamplerChannel);
156 String ListFxSends(uint uiSamplerChannel);
157 String GetFxSendInfo(uint uiSamplerChannel, uint FxSendID);
158 String SetFxSendName(uint uiSamplerChannel, uint FxSendID, String Name);
159 String SetFxSendAudioOutputChannel(uint uiSamplerChannel, uint FxSendID, uint FxSendChannel, uint DeviceChannel);
160 String SetFxSendMidiController(uint uiSamplerChannel, uint FxSendID, uint MidiController);
161 String SetFxSendLevel(uint uiSamplerChannel, uint FxSendID, double dLevel);
162 String AddDbInstrumentDirectory(String Dir);
163 String RemoveDbInstrumentDirectory(String Dir, bool Force = false);
164 String GetDbInstrumentDirectoryCount(String Dir, bool Recursive = false);
165 String GetDbInstrumentDirectories(String Dir, bool Recursive = false);
166 String GetDbInstrumentDirectoryInfo(String Dir);
167 String SetDbInstrumentDirectoryName(String Dir, String Name);
168 String MoveDbInstrumentDirectory(String Dir, String Dst);
169 String CopyDbInstrumentDirectory(String Dir, String Dst);
170 String SetDbInstrumentDirectoryDescription(String Dir, String Desc);
171 String FindDbInstrumentDirectories(String Dir, std::map<String,String> Parameters, bool Recursive = true);
172 String AddDbInstruments(String DbDir, String FilePath, int Index = -1, bool bBackground = false);
173 String AddDbInstruments(String ScanMode, String DbDir, String FsDir, bool bBackground = false);
174 String RemoveDbInstrument(String Instr);
175 String GetDbInstrumentCount(String Dir, bool Recursive = false);
176 String GetDbInstruments(String Dir, bool Recursive = false);
177 String GetDbInstrumentInfo(String Instr);
178 String SetDbInstrumentName(String Instr, String Name);
179 String MoveDbInstrument(String Instr, String Dst);
180 String CopyDbInstrument(String Instr, String Dst);
181 String SetDbInstrumentDescription(String Instr, String Desc);
182 String FindDbInstruments(String Dir, std::map<String,String> Parameters, bool Recursive = true);
183 String GetDbInstrumentsJobInfo(int JobId);
184 String ResetChannel(uint uiSamplerChannel);
185 String ResetSampler();
186 String GetServerInfo();
187 String GetTotalVoiceCount();
188 String GetTotalVoiceCountMax();
189 String GetGlobalVolume();
190 String SetGlobalVolume(double dVolume);
191 String SubscribeNotification(LSCPEvent::event_t);
192 String UnsubscribeNotification(LSCPEvent::event_t);
193 String SetEcho(yyparse_param_t* pSession, double boolean_value);
194 void AnswerClient(String ReturnMessage);
195
196 static int currentSocket;
197 static std::map<int,String> bufferedCommands;
198
199 static void SendLSCPNotify( LSCPEvent Event );
200 static int EventSubscribers( std::list<LSCPEvent::event_t> events );
201 static void LockRTNotify( void ) { RTNotifyMutex.Lock(); }
202 static void UnlockRTNotify( void ) { RTNotifyMutex.Unlock(); }
203 static String FilterEndlines(String s);
204
205 protected:
206 int hSocket;
207 sockaddr_in SocketAddress;
208 Sampler* pSampler;
209 Condition Initialized;
210
211 int Main(); ///< Implementation of virtual method from class Thread
212
213 private:
214
215 /**
216 * Find a created audio output device index.
217 */
218 int GetAudioOutputDeviceIndex (AudioOutputDevice *pDevice);
219
220 /**
221 * Find a created midi input device index.
222 */
223 int GetMidiInputDeviceIndex (MidiInputDevice *pDevice);
224
225 EngineChannel* GetEngineChannel(uint uiSamplerChannel);
226
227 /**
228 * Gets the specified effect send on the specified sampler channel.
229 */
230 FxSend* GetFxSend(uint uiSamplerChannel, uint FxSendID);
231
232 bool HasSoloChannel();
233 void MuteNonSoloChannels();
234 void UnmuteChannels();
235
236 static std::map<int,String> bufferedNotifies;
237 static Mutex NotifyMutex;
238 static Mutex NotifyBufferMutex;
239 static bool GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter );
240 static void CloseConnection( std::vector<yyparse_param_t>::iterator iter );
241 static std::vector<yyparse_param_t> Sessions;
242 static Mutex SubscriptionMutex;
243 static std::map< LSCPEvent::event_t, std::list<int> > eventSubscriptions;
244 static fd_set fdSet;
245
246 //Protect main thread that generates real time notify messages
247 //like voice count, stream count and buffer fill
248 //from LSCP server removing engines and channels from underneath
249 static Mutex RTNotifyMutex;
250
251 class EventHandler : public ChannelCountListener, public AudioDeviceCountListener,
252 public MidiDeviceCountListener, public MidiInstrumentCountListener,
253 public MidiInstrumentInfoListener, public MidiInstrumentMapCountListener,
254 public MidiInstrumentMapInfoListener, public FxSendCountListener,
255 public VoiceCountListener, public StreamCountListener,
256 public BufferFillListener, public TotalVoiceCountListener {
257
258 public:
259 /**
260 * Invoked when the number of sampler channels has changed.
261 * @param NewCount The new number of sampler channels.
262 */
263 virtual void ChannelCountChanged(int NewCount);
264
265 /**
266 * Invoked when the number of audio output devices has changed.
267 * @param NewCount The new number of audio output devices.
268 */
269 virtual void AudioDeviceCountChanged(int NewCount);
270
271 /**
272 * Invoked when the number of MIDI input devices has changed.
273 * @param NewCount The new number of MIDI input devices.
274 */
275 virtual void MidiDeviceCountChanged(int NewCount);
276
277 /**
278 * Invoked when the number of MIDI instruments has changed.
279 * @param MapId The numerical ID of the MIDI instrument map.
280 * @param NewCount The new number of MIDI instruments.
281 */
282 virtual void MidiInstrumentCountChanged(int MapId, int NewCount);
283
284 /**
285 * Invoked when a MIDI instrument in a MIDI instrument map is changed.
286 * @param MapId The numerical ID of the MIDI instrument map.
287 * @param Bank The index of the MIDI bank, containing the instrument.
288 * @param Program The MIDI program number of the instrument.
289 */
290 virtual void MidiInstrumentInfoChanged(int MapId, int Bank, int Program);
291
292 /**
293 * Invoked when the number of MIDI instrument maps has changed.
294 * @param NewCount The new number of MIDI instruments.
295 */
296 virtual void MidiInstrumentMapCountChanged(int NewCount);
297
298 /**
299 * Invoked when the settings of a MIDI instrument map are changed.
300 * @param MapId The numerical ID of the MIDI instrument map.
301 */
302 virtual void MidiInstrumentMapInfoChanged(int MapId);
303
304 /**
305 * Invoked when the number of effect sends
306 * on the specified sampler channel has changed.
307 * @param ChannelId The numerical ID of the sampler channel.
308 * @param NewCount The new number of effect sends.
309 */
310 virtual void FxSendCountChanged(int ChannelId, int NewCount);
311
312 /**
313 * Invoked when the number of active voices
314 * on the specified sampler channel has changed.
315 * @param ChannelId The numerical ID of the sampler channel.
316 * @param NewCount The new number of active voices.
317 */
318 virtual void VoiceCountChanged(int ChannelId, int NewCount);
319
320 /**
321 * Invoked when the number of active disk streams
322 * on the specified sampler channel has changed.
323 * @param ChannelId The numerical ID of the sampler channel.
324 * @param NewCount The new number of active disk streams.
325 */
326 virtual void StreamCountChanged(int ChannelId, int NewCount);
327
328 /**
329 * Invoked when the fill state of the disk stream
330 * buffers on the specified sampler channel is changed.
331 * @param ChannelId The numerical ID of the sampler channel.
332 * @param FillData The buffer fill data for the specified sampler channel.
333 */
334 virtual void BufferFillChanged(int ChannelId, String FillData);
335
336 /**
337 * Invoked when the total number of active voices is changed.
338 * @param NewCount The new number of active voices.
339 */
340 virtual void TotalVoiceCountChanged(int NewCount);
341 } eventHandler;
342
343 #if HAVE_SQLITE3
344 class DbInstrumentsEventHandler : public InstrumentsDb::Listener {
345 public:
346
347 /**
348 * Invoked when the number of instrument directories
349 * in a specific directory has changed.
350 * @param Dir The absolute pathname of the directory in
351 * which the number of directories is changed.
352 */
353 virtual void DirectoryCountChanged(String Dir);
354
355 /**
356 * Invoked when the settings of an instrument directory
357 * are changed.
358 * @param Dir The absolute pathname of the directory
359 * whose settings are changed.
360 */
361 virtual void DirectoryInfoChanged(String Dir);
362
363 /**
364 * Invoked when an instrument directory is renamed.
365 * @param Dir The old absolute pathname of the directory.
366 * @param NewName The new name of the directory.
367 */
368 virtual void DirectoryNameChanged(String Dir, String NewName);
369
370 /**
371 * Invoked when the number of instruments
372 * in a specific directory has changed.
373 * @param Dir The absolute pathname of the directory in
374 * which the number of instruments is changed.
375 */
376 virtual void InstrumentCountChanged(String Dir);
377
378 /**
379 * Invoked when the settings of an instrument are changed.
380 * @param Instr The absolute pathname of the instrument
381 * whose settings are changed.
382 */
383 virtual void InstrumentInfoChanged(String Instr);
384
385 /**
386 * Invoked when an instrument is renamed.
387 * @param Instr The old absolute pathname of the instrument.
388 * @param NewName The new name of the directory.
389 */
390 virtual void InstrumentNameChanged(String Instr, String NewName);
391
392 /**
393 * Invoked when the status of particular job is changed.
394 * @param JobId The ID of the job.
395 */
396 virtual void JobStatusChanged(int JobId);
397 } dbInstrumentsEventHandler;
398 #endif // HAVE_SQLITE3
399 };
400
401 #endif // __LSCPSERVER_H_

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