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

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Revision 563 - (hide annotations) (download) (as text)
Sun May 22 20:43:32 2005 UTC (15 years, 4 months ago) by schoenebeck
File MIME type: text/x-c++hdr
File size: 9026 byte(s)
* (re)implemented voice stealing algorithm "oldestvoiceonkey" and made it
  the default voice stealing algorithm
* added new LSCP command "GET SERVER INFO" which currently returns
  description and version about this sampler
* added some API documentation comments
* minor cleanup

1 schoenebeck 35 /***************************************************************************
2     * *
3     * LinuxSampler - modular, streaming capable sampler *
4     * *
5 schoenebeck 56 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 schoenebeck 385 * Copyright (C) 2005 Christian Schoenebeck *
7 schoenebeck 35 * *
8 schoenebeck 385 * This library is free software; you can redistribute it and/or modify *
9 schoenebeck 35 * 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 schoenebeck 385 * This library is distributed in the hope that it will be useful, *
14 schoenebeck 35 * 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 schoenebeck 385 * along with this library; if not, write to the Free Software *
20 schoenebeck 35 * 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 senkov 170 #include <sys/select.h>
31     #include <sys/time.h>
32 schoenebeck 35 #include <netinet/in.h>
33     #include <netinet/tcp.h>
34     #include <arpa/inet.h>
35     #include <netdb.h>
36    
37 senkov 170 #include <list>
38    
39 schoenebeck 53 #include "lscp.h"
40 schoenebeck 35 #include "lscpparser.h"
41 senkov 170 #include "lscp.h"
42     #include "lscpevent.h"
43 schoenebeck 385 #include "lscpinstrumentloader.h"
44 schoenebeck 53 #include "../Sampler.h"
45     #include "../common/Thread.h"
46 senkov 170 #include "../common/Mutex.h"
47 schoenebeck 211 #include "../common/Condition.h"
48 schoenebeck 35
49     /// TCP Port on which the server should listen for connection requests.
50     #define LSCP_PORT 8888
51    
52 schoenebeck 227 /// try up to 3 minutes to bind server socket
53     #define LSCP_SERVER_BIND_TIMEOUT 180
54    
55 schoenebeck 53 using namespace LinuxSampler;
56    
57 schoenebeck 35 // External references to the main scanner and parser functions
58     extern int yyparse(void* YYPARSE_PARAM);
59 schoenebeck 219 extern void restart(yyparse_param_t* pparam, int& yychar);
60 schoenebeck 35
61     /**
62     * Network server for the LinuxSampler Control Protocol (LSCP).
63     */
64     class LSCPServer : public Thread {
65     public:
66 schoenebeck 53 LSCPServer(Sampler* pSampler);
67 schoenebeck 475 virtual ~LSCPServer();
68 schoenebeck 211 int WaitUntilInitialized(long TimeoutSeconds = 0L, long TimeoutNanoSeconds = 0L);
69 schoenebeck 35
70     // Methods called by the parser
71 schoenebeck 123 String DestroyAudioOutputDevice(uint DeviceIndex);
72 senkov 155 String DestroyMidiInputDevice(uint DeviceIndex);
73 capela 137 String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground = false);
74 schoenebeck 411 String SetEngineType(String EngineName, uint uiSamplerChannel);
75 schoenebeck 35 String GetChannels();
76 schoenebeck 209 String ListChannels();
77 schoenebeck 35 String AddChannel();
78 schoenebeck 53 String RemoveChannel(uint uiSamplerChannel);
79 schoenebeck 35 String GetAvailableEngines();
80 capela 527 String ListAvailableEngines();
81 schoenebeck 35 String GetEngineInfo(String EngineName);
82 schoenebeck 53 String GetChannelInfo(uint uiSamplerChannel);
83     String GetVoiceCount(uint uiSamplerChannel);
84     String GetStreamCount(uint uiSamplerChannel);
85     String GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel);
86 schoenebeck 123 String GetAvailableAudioOutputDrivers();
87 capela 527 String ListAvailableAudioOutputDrivers();
88 senkov 155 String GetAvailableMidiInputDrivers();
89 capela 527 String ListAvailableMidiInputDrivers();
90 schoenebeck 123 String GetAudioOutputDriverInfo(String Driver);
91 senkov 155 String GetMidiInputDriverInfo(String Driver);
92 schoenebeck 123 #ifdef __GNUC__
93     typedef std::map<String,String> StringMap; // nasty workaround for a GCC bug (see GCC bug #15980, #57)
94     String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
95 senkov 155 String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
96 senkov 140 String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = StringMap());
97 senkov 155 String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = StringMap());
98 schoenebeck 123 #else
99     String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
100 senkov 155 String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
101 senkov 140 String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
102 senkov 155 String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
103 schoenebeck 123 #endif // __GNUC__
104     String GetAudioOutputDeviceCount();
105 senkov 155 String GetMidiInputDeviceCount();
106 schoenebeck 123 String GetAudioOutputDevices();
107 senkov 155 String GetMidiInputDevices();
108 schoenebeck 123 String GetAudioOutputDeviceInfo(uint DeviceIndex);
109 senkov 155 String GetMidiInputDeviceInfo(uint DeviceIndex);
110     String GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex);
111 senkov 185 String GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName);
112 schoenebeck 123 String GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId);
113     String GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName);
114     String SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal);
115     String SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
116 senkov 155 String SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
117 capela 159 String SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal);
118 schoenebeck 123 String SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel);
119 capela 159 String SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel);
120 capela 143 String SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel);
121 capela 159 String SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel);
122     String SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel);
123     String SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel);
124 schoenebeck 123 String SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel);
125 capela 159 String SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel);
126 schoenebeck 225 String SetVolume(double dVolume, uint uiSamplerChannel);
127 schoenebeck 53 String ResetChannel(uint uiSamplerChannel);
128 schoenebeck 212 String ResetSampler();
129 schoenebeck 563 String GetServerInfo();
130 senkov 170 String SubscribeNotification(LSCPEvent::event_t);
131     String UnsubscribeNotification(LSCPEvent::event_t);
132 senkov 397 String QueryDatabase(String query);
133 schoenebeck 210 String SetEcho(yyparse_param_t* pSession, double boolean_value);
134 schoenebeck 35 void AnswerClient(String ReturnMessage);
135 senkov 170
136     static int currentSocket;
137     static std::map<int,String> bufferedCommands;
138 senkov 184
139     static void SendLSCPNotify( LSCPEvent Event );
140 senkov 360 static int EventSubscribers( std::list<LSCPEvent::event_t> events );
141     static void LockRTNotify( void ) { RTNotifyMutex.Lock(); }
142     static void UnlockRTNotify( void ) { RTNotifyMutex.Unlock(); }
143 senkov 184
144 schoenebeck 35 protected:
145 schoenebeck 53 int hSocket;
146     sockaddr_in SocketAddress;
147     Sampler* pSampler;
148 schoenebeck 211 Condition Initialized;
149 schoenebeck 385 LSCPInstrumentLoader InstrumentLoader; ///< thread responsible for loading instruments in the background
150 schoenebeck 35
151     int Main(); ///< Implementation of virtual method from class Thread
152 senkov 170
153 schoenebeck 35 private:
154 schoenebeck 209
155 schoenebeck 35 /**
156 capela 143 * Find a created audio output device index.
157     */
158     int GetAudioOutputDeviceIndex (AudioOutputDevice *pDevice);
159 schoenebeck 209
160 senkov 155 /**
161     * Find a created midi input device index.
162     */
163     int GetMidiInputDeviceIndex (MidiInputDevice *pDevice);
164 capela 143
165 senkov 170 static std::map<int,String> bufferedNotifies;
166     static Mutex NotifyMutex;
167     static Mutex NotifyBufferMutex;
168 schoenebeck 210 static bool GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter );
169     static void CloseConnection( std::vector<yyparse_param_t>::iterator iter );
170     static std::vector<yyparse_param_t> Sessions;
171 senkov 170 static Mutex SubscriptionMutex;
172     static std::map< LSCPEvent::event_t, std::list<int> > eventSubscriptions;
173     static fd_set fdSet;
174 senkov 360
175     //Protect main thread that generates real time notify messages
176     //like voice count, stream count and buffer fill
177     //from LSCP server removing engines and channels from underneath
178     static Mutex RTNotifyMutex;
179 schoenebeck 35 };
180    
181     #endif // __LSCPSERVER_H_

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