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schoenebeck |
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/*************************************************************************** |
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* * |
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* LinuxSampler - modular, streaming capable sampler * |
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* * |
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* Copyright (C) 2003 by Benno Senoner and Christian Schoenebeck * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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#ifndef __LSCPSERVER_H_ |
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#define __LSCPSERVER_H_ |
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#include <unistd.h> |
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#include <sys/types.h> |
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#include <sys/socket.h> |
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#include <netinet/in.h> |
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#include <netinet/tcp.h> |
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#include <arpa/inet.h> |
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#include <netdb.h> |
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#include "lscpparser.h" |
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#include "../thread.h" |
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#include "../audiothread.h" |
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/// TCP Port on which the server should listen for connection requests. |
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#define LSCP_PORT 8888 |
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/// 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). |
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extern int hSession; |
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// External references to the main scanner and parser functions |
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extern int yyparse(void* YYPARSE_PARAM); |
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extern int yylex_init(yyscan_t* scanner); |
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extern int yylex_destroy(yyscan_t yyscanner); |
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/** |
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* Network server for the LinuxSampler Control Protocol (LSCP). |
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*/ |
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class LSCPServer : public Thread { |
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public: |
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LSCPServer(AudioThread* pEngine); |
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// Methods called by the parser |
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String LoadInstrument(String Filename, uint Instrument, uint SamplerChannel); |
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String LoadEngine(String EngineName, uint SamplerChannel); |
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String GetChannels(); |
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String AddChannel(); |
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String RemoveChannel(uint SamplerChannel); |
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String GetAvailableEngines(); |
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String GetEngineInfo(String EngineName); |
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String GetChannelInfo(uint SamplerChannel); |
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String GetVoiceCount(uint SamplerChannel); |
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String GetStreamCount(uint SamplerChannel); |
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String GetBufferFill(fill_response_t ResponseType, uint SamplerChannel); |
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String SetAudioOutputType(audio_output_type_t AudioOutputType, uint SamplerChannel); |
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String SetAudioOutputChannel(uint AudioOutputChannel, uint SamplerChannel); |
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String SetMIDIInputPort(String MIDIInputPort, uint Samplerchannel); |
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String SetMIDIInputChannel(uint MIDIChannel, uint SamplerChannel); |
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String SetVolume(double Volume, uint SamplerChannel); |
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String ResetChannel(uint SamplerChannel); |
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String SubscribeNotification(uint UDPPort); |
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String UnsubscribeNotification(String SessionID); |
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void AnswerClient(String ReturnMessage); |
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protected: |
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int hSocket; |
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sockaddr_in SocketAddress; |
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AudioThread* pEngine; // FIXME: as long as we only have one engine... |
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int Main(); ///< Implementation of virtual method from class Thread |
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private: |
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/** |
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* Converts a result_t structure into a valid LSCP answer message. |
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*/ |
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inline String ConvertResult(result_t result) { |
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switch (result.type) { |
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case result_type_success: { |
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return "OK\r\n"; |
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} |
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case result_type_warning: { |
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std::stringstream ss; |
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ss << "WRN:" << result.code << ":" << result.message << "\r\n"; |
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return ss.str(); |
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} |
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case result_type_error: { |
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std::stringstream ss; |
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ss << "ERR:" << result.code << ":" << result.message << "\r\n"; |
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return ss.str(); |
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} |
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} |
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} |
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inline String ToString(int i) { |
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std::stringstream ss; |
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ss << i; |
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return ss.str(); |
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} |
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inline String ToString(double d) { |
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std::stringstream ss; |
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ss << d; |
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return ss.str(); |
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} |
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}; |
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#endif // __LSCPSERVER_H_ |