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

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Revision 778 - (show annotations) (download) (as text)
Fri Sep 23 06:58:26 2005 UTC (18 years, 6 months ago) by iliev
File MIME type: text/x-c++hdr
File size: 9394 byte(s)
Added new LSCP commands: GET TOTAL_VOICE_COUNT,
GET TOTAL_VOICE_COUNT_MAX, SUBSCRIBE/UNSUBSCRIBE TOTAL_VOICE_COUNT

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 * Copyright (C) 2005 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 "lscpinstrumentloader.h"
44 #include "../Sampler.h"
45 #include "../common/Thread.h"
46 #include "../common/Mutex.h"
47 #include "../common/Condition.h"
48
49 /// TCP Port on which the server should listen for connection requests.
50 #define LSCP_ADDR INADDR_ANY
51 #define LSCP_PORT 8888
52
53 /// try up to 3 minutes to bind server socket
54 #define LSCP_SERVER_BIND_TIMEOUT 180
55
56 using namespace LinuxSampler;
57
58 // External references to the main scanner and parser functions
59 extern int yyparse(void* YYPARSE_PARAM);
60 extern void restart(yyparse_param_t* pparam, int& yychar);
61
62 /**
63 * Network server for the LinuxSampler Control Protocol (LSCP).
64 */
65 class LSCPServer : public Thread {
66 public:
67 LSCPServer(Sampler* pSampler, long int addr, short int port);
68 virtual ~LSCPServer();
69 int WaitUntilInitialized(long TimeoutSeconds = 0L, long TimeoutNanoSeconds = 0L);
70
71 // Methods called by the parser
72 String DestroyAudioOutputDevice(uint DeviceIndex);
73 String DestroyMidiInputDevice(uint DeviceIndex);
74 String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground = false);
75 String SetEngineType(String EngineName, uint uiSamplerChannel);
76 String GetChannels();
77 String ListChannels();
78 String AddChannel();
79 String RemoveChannel(uint uiSamplerChannel);
80 String GetAvailableEngines();
81 String ListAvailableEngines();
82 String GetEngineInfo(String EngineName);
83 String GetChannelInfo(uint uiSamplerChannel);
84 String GetVoiceCount(uint uiSamplerChannel);
85 String GetStreamCount(uint uiSamplerChannel);
86 String GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel);
87 String GetAvailableAudioOutputDrivers();
88 String ListAvailableAudioOutputDrivers();
89 String GetAvailableMidiInputDrivers();
90 String ListAvailableMidiInputDrivers();
91 String GetAudioOutputDriverInfo(String Driver);
92 String GetMidiInputDriverInfo(String Driver);
93 #ifdef __GNUC__
94 typedef std::map<String,String> StringMap; // nasty workaround for a GCC bug (see GCC bug #15980, #57)
95 String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
96 String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
97 String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = StringMap());
98 String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = StringMap());
99 #else
100 String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
101 String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
102 String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
103 String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
104 #endif // __GNUC__
105 String GetAudioOutputDeviceCount();
106 String GetMidiInputDeviceCount();
107 String GetAudioOutputDevices();
108 String GetMidiInputDevices();
109 String GetAudioOutputDeviceInfo(uint DeviceIndex);
110 String GetMidiInputDeviceInfo(uint DeviceIndex);
111 String GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex);
112 String GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName);
113 String GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId);
114 String GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName);
115 String SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal);
116 String SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
117 String SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
118 String SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal);
119 String SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel);
120 String SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel);
121 String SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel);
122 String SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel);
123 String SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel);
124 String SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel);
125 String SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel);
126 String SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel);
127 String SetVolume(double dVolume, uint uiSamplerChannel);
128 String SetChannelMute(bool bMute, uint uiSamplerChannel);
129 String SetChannelSolo(bool bSolo, uint uiSamplerChannel);
130 String ResetChannel(uint uiSamplerChannel);
131 String ResetSampler();
132 String GetServerInfo();
133 String GetTotalVoiceCount();
134 String GetTotalVoiceCountMax();
135 String SubscribeNotification(LSCPEvent::event_t);
136 String UnsubscribeNotification(LSCPEvent::event_t);
137 String QueryDatabase(String query);
138 String SetEcho(yyparse_param_t* pSession, double boolean_value);
139 void AnswerClient(String ReturnMessage);
140
141 static int currentSocket;
142 static std::map<int,String> bufferedCommands;
143
144 static void SendLSCPNotify( LSCPEvent Event );
145 static int EventSubscribers( std::list<LSCPEvent::event_t> events );
146 static void LockRTNotify( void ) { RTNotifyMutex.Lock(); }
147 static void UnlockRTNotify( void ) { RTNotifyMutex.Unlock(); }
148
149 protected:
150 int hSocket;
151 sockaddr_in SocketAddress;
152 Sampler* pSampler;
153 Condition Initialized;
154 LSCPInstrumentLoader InstrumentLoader; ///< thread responsible for loading instruments in the background
155
156 int Main(); ///< Implementation of virtual method from class Thread
157
158 private:
159
160 /**
161 * Find a created audio output device index.
162 */
163 int GetAudioOutputDeviceIndex (AudioOutputDevice *pDevice);
164
165 /**
166 * Find a created midi input device index.
167 */
168 int GetMidiInputDeviceIndex (MidiInputDevice *pDevice);
169
170 bool HasSoloChannel();
171 void MuteNonSoloChannels();
172 void UnmuteChannels();
173
174 static std::map<int,String> bufferedNotifies;
175 static Mutex NotifyMutex;
176 static Mutex NotifyBufferMutex;
177 static bool GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter );
178 static void CloseConnection( std::vector<yyparse_param_t>::iterator iter );
179 static std::vector<yyparse_param_t> Sessions;
180 static Mutex SubscriptionMutex;
181 static std::map< LSCPEvent::event_t, std::list<int> > eventSubscriptions;
182 static fd_set fdSet;
183
184 //Protect main thread that generates real time notify messages
185 //like voice count, stream count and buffer fill
186 //from LSCP server removing engines and channels from underneath
187 static Mutex RTNotifyMutex;
188 };
189
190 #endif // __LSCPSERVER_H_

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