1 |
/*************************************************************************** |
2 |
* * |
3 |
* LinuxSampler - modular, streaming capable sampler * |
4 |
* * |
5 |
* Copyright (C) 2003 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 <netinet/in.h> |
30 |
#include <netinet/tcp.h> |
31 |
#include <arpa/inet.h> |
32 |
#include <netdb.h> |
33 |
|
34 |
#include "lscp.h" |
35 |
#include "lscpparser.h" |
36 |
#include "../Sampler.h" |
37 |
#include "../common/Thread.h" |
38 |
|
39 |
/// TCP Port on which the server should listen for connection requests. |
40 |
#define LSCP_PORT 8888 |
41 |
|
42 |
using namespace LinuxSampler; |
43 |
|
44 |
/// 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). |
45 |
extern int hSession; |
46 |
|
47 |
// External references to the main scanner and parser functions |
48 |
extern int yyparse(void* YYPARSE_PARAM); |
49 |
extern int yylex_init(yyscan_t* scanner); |
50 |
extern int yylex_destroy(yyscan_t yyscanner); |
51 |
|
52 |
/** |
53 |
* Network server for the LinuxSampler Control Protocol (LSCP). |
54 |
*/ |
55 |
class LSCPServer : public Thread { |
56 |
public: |
57 |
LSCPServer(Sampler* pSampler); |
58 |
|
59 |
// Methods called by the parser |
60 |
String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel); |
61 |
String LoadEngine(String EngineName, uint uiSamplerChannel); |
62 |
String GetChannels(); |
63 |
String AddChannel(); |
64 |
String RemoveChannel(uint uiSamplerChannel); |
65 |
String GetAvailableEngines(); |
66 |
String GetEngineInfo(String EngineName); |
67 |
String GetChannelInfo(uint uiSamplerChannel); |
68 |
String GetVoiceCount(uint uiSamplerChannel); |
69 |
String GetStreamCount(uint uiSamplerChannel); |
70 |
String GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel); |
71 |
String SetAudioOutputType(audio_output_type_t AudioOutputType, uint uiSamplerChannel); |
72 |
String SetAudioOutputChannel(uint AudioOutputChannel, uint uiSamplerChannel); |
73 |
String SetMIDIInputType(midi_input_type_t MidiInputType, uint uiSamplerChannel); |
74 |
String SetMIDIInputPort(String MIDIInputPort, uint uiSamplerchannel); |
75 |
String SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel); |
76 |
String SetVolume(double Volume, uint uiSamplerChannel); |
77 |
String ResetChannel(uint uiSamplerChannel); |
78 |
String SubscribeNotification(uint UDPPort); |
79 |
String UnsubscribeNotification(String SessionID); |
80 |
void AnswerClient(String ReturnMessage); |
81 |
protected: |
82 |
int hSocket; |
83 |
sockaddr_in SocketAddress; |
84 |
Sampler* pSampler; |
85 |
|
86 |
int Main(); ///< Implementation of virtual method from class Thread |
87 |
private: |
88 |
/** |
89 |
* Converts a result_t structure into a valid LSCP answer message. |
90 |
*/ |
91 |
inline String ConvertResult(result_t result) { |
92 |
switch (result.type) { |
93 |
case result_type_success: { |
94 |
return "OK\r\n"; |
95 |
} |
96 |
case result_type_warning: { |
97 |
std::stringstream ss; |
98 |
ss << "WRN:" << result.code << ":" << result.message << "\r\n"; |
99 |
return ss.str(); |
100 |
} |
101 |
case result_type_error: { |
102 |
std::stringstream ss; |
103 |
ss << "ERR:" << result.code << ":" << result.message << "\r\n"; |
104 |
return ss.str(); |
105 |
} |
106 |
} |
107 |
} |
108 |
|
109 |
template<class T> inline String ToString(T o) { |
110 |
std::stringstream ss; |
111 |
ss << o; |
112 |
return ss.str(); |
113 |
} |
114 |
}; |
115 |
|
116 |
#endif // __LSCPSERVER_H_ |