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

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Revision 227 - (show annotations) (download) (as text)
Thu Aug 26 22:05:44 2004 UTC (15 years, 5 months ago) by schoenebeck
File MIME type: text/x-c++hdr
File size: 8593 byte(s)
* ALSA audio driver: bugfix in device parameter 'CARD' which caused an
  error message if used in conjunction with 'CREATE AUDIO_OUTPUT_DEVICE'
  LSCP command
* JACK audio driver: fixed minor JACK port name issue and the device was
  not activated by default on creation which caused it to render solely
  silence
* src/network/lscpserver.cpp: retry to bind socket for 3 minutes if bind
  failed

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 * *
7 * This program is free software; you can redistribute it and/or modify *
8 * it under the terms of the GNU General Public License as published by *
9 * the Free Software Foundation; either version 2 of the License, or *
10 * (at your option) any later version. *
11 * *
12 * This program is distributed in the hope that it will be useful, *
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15 * GNU General Public License for more details. *
16 * *
17 * You should have received a copy of the GNU General Public License *
18 * along with this program; if not, write to the Free Software *
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
20 * MA 02111-1307 USA *
21 ***************************************************************************/
22
23 #ifndef __LSCPSERVER_H_
24 #define __LSCPSERVER_H_
25
26 #include <unistd.h>
27 #include <sys/types.h>
28 #include <sys/socket.h>
29 #include <sys/select.h>
30 #include <sys/time.h>
31 #include <netinet/in.h>
32 #include <netinet/tcp.h>
33 #include <arpa/inet.h>
34 #include <netdb.h>
35
36 #include <list>
37
38 #include "lscp.h"
39 #include "lscpparser.h"
40 #include "lscp.h"
41 #include "lscpevent.h"
42 #include "../Sampler.h"
43 #include "../common/Thread.h"
44 #include "../common/Mutex.h"
45 #include "../common/Condition.h"
46
47 /// TCP Port on which the server should listen for connection requests.
48 #define LSCP_PORT 8888
49
50 /// try up to 3 minutes to bind server socket
51 #define LSCP_SERVER_BIND_TIMEOUT 180
52
53 using namespace LinuxSampler;
54
55 // External references to the main scanner and parser functions
56 extern int yyparse(void* YYPARSE_PARAM);
57 extern void restart(yyparse_param_t* pparam, int& yychar);
58
59 /**
60 * Network server for the LinuxSampler Control Protocol (LSCP).
61 */
62 class LSCPServer : public Thread {
63 public:
64 LSCPServer(Sampler* pSampler);
65 int WaitUntilInitialized(long TimeoutSeconds = 0L, long TimeoutNanoSeconds = 0L);
66
67 // Methods called by the parser
68 String DestroyAudioOutputDevice(uint DeviceIndex);
69 String DestroyMidiInputDevice(uint DeviceIndex);
70 String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground = false);
71 String LoadEngine(String EngineName, uint uiSamplerChannel);
72 String GetChannels();
73 String ListChannels();
74 String AddChannel();
75 String RemoveChannel(uint uiSamplerChannel);
76 String GetAvailableEngines();
77 String GetEngineInfo(String EngineName);
78 String GetChannelInfo(uint uiSamplerChannel);
79 String GetVoiceCount(uint uiSamplerChannel);
80 String GetStreamCount(uint uiSamplerChannel);
81 String GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel);
82 String GetAvailableAudioOutputDrivers();
83 String GetAvailableMidiInputDrivers();
84 String GetAudioOutputDriverInfo(String Driver);
85 String GetMidiInputDriverInfo(String Driver);
86 #ifdef __GNUC__
87 typedef std::map<String,String> StringMap; // nasty workaround for a GCC bug (see GCC bug #15980, #57)
88 String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
89 String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
90 String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = StringMap());
91 String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = StringMap());
92 #else
93 String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
94 String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
95 String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
96 String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
97 #endif // __GNUC__
98 String GetAudioOutputDeviceCount();
99 String GetMidiInputDeviceCount();
100 String GetAudioOutputDevices();
101 String GetMidiInputDevices();
102 String GetAudioOutputDeviceInfo(uint DeviceIndex);
103 String GetMidiInputDeviceInfo(uint DeviceIndex);
104 String GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex);
105 String GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName);
106 String GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId);
107 String GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName);
108 String SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal);
109 String SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
110 String SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
111 String SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal);
112 String SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel);
113 String SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel);
114 String SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel);
115 String SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel);
116 String SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel);
117 String SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel);
118 String SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel);
119 String SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel);
120 String SetVolume(double dVolume, uint uiSamplerChannel);
121 String ResetChannel(uint uiSamplerChannel);
122 String ResetSampler();
123 String SubscribeNotification(LSCPEvent::event_t);
124 String UnsubscribeNotification(LSCPEvent::event_t);
125 String SetEcho(yyparse_param_t* pSession, double boolean_value);
126 void AnswerClient(String ReturnMessage);
127
128 static int currentSocket;
129 static std::map<int,String> bufferedCommands;
130
131 static void SendLSCPNotify( LSCPEvent Event );
132
133 protected:
134 int hSocket;
135 sockaddr_in SocketAddress;
136 Sampler* pSampler;
137 Condition Initialized;
138
139 int Main(); ///< Implementation of virtual method from class Thread
140
141 private:
142
143 /**
144 * Find a created audio output device index.
145 */
146 int GetAudioOutputDeviceIndex (AudioOutputDevice *pDevice);
147
148 /**
149 * Find a created midi input device index.
150 */
151 int GetMidiInputDeviceIndex (MidiInputDevice *pDevice);
152
153 static std::map<int,String> bufferedNotifies;
154 static Mutex NotifyMutex;
155 static Mutex NotifyBufferMutex;
156 static bool GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter );
157 static void CloseConnection( std::vector<yyparse_param_t>::iterator iter );
158 static std::vector<yyparse_param_t> Sessions;
159 static Mutex SubscriptionMutex;
160 static std::map< LSCPEvent::event_t, std::list<int> > eventSubscriptions;
161 static fd_set fdSet;
162 };
163
164 /**
165 * Instrument loader thread for the LinuxSampler Control Protocol (LSCP).
166 */
167 class LSCPLoadInstrument : public Thread {
168
169 public:
170 LSCPLoadInstrument(Engine* pEngine, String Filename, uint uiInstrument);
171
172 protected:
173 // Instance variables.
174 Engine* pEngine;
175 String Filename;
176 uint uiInstrument;
177
178 // Implementation of virtual method from class Thread.
179 int Main();
180 };
181
182 #endif // __LSCPSERVER_H_

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