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

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Revision 385 - (hide annotations) (download) (as text)
Thu Feb 17 02:53:45 2005 UTC (15 years, 1 month ago) by schoenebeck
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File size: 2613 byte(s)
* lscpserver: we now only use one instrument loader thread; commands for
  loading instruments in the background wait in a queue to be processed one
  by one to avoid possible race conditions and to improve I/O efficiency
* fixed possible race condition while streaming with multiple disk threads
  by using an own decompression buffer for each disk thread
* libgig: fixed some memory leaks caused by non virtual base constructors

1 schoenebeck 385 /***************************************************************************
2     * *
3     * Copyright (C) 2005 Christian Schoenebeck *
4     * *
5     * This library is free software; you can redistribute it and/or modify *
6     * it under the terms of the GNU General Public License as published by *
7     * the Free Software Foundation; either version 2 of the License, or *
8     * (at your option) any later version. *
9     * *
10     * This library is distributed in the hope that it will be useful, *
11     * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13     * GNU General Public License for more details. *
14     * *
15     * You should have received a copy of the GNU General Public License *
16     * along with this library; if not, write to the Free Software *
17     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
18     * MA 02111-1307 USA *
19     ***************************************************************************/
20    
21     #ifndef __LSCPINSTRUMENTLOADER_H__
22     #define __LSCPINSTRUMENTLOADER_H__
23    
24     #include "../common/global.h"
25     #include "../common/Thread.h"
26     #include "../common/RingBuffer.h"
27     #include "../Sampler.h"
28    
29     /// Maximum numbers of instruments waiting to be loaded by the LSCPInstrumentLoader.
30     #define INSTRUMENT_LOADER_QUEUE_SIZE 200
31    
32     using namespace LinuxSampler;
33    
34     /**
35     * Instrument loader thread for the LinuxSampler Control Protocol (LSCP)
36     * Server for loading instruments in the background. This loader will only
37     * load one instrument by one.
38     */
39     class LSCPInstrumentLoader : public Thread {
40     public:
41     LSCPInstrumentLoader();
42     void StartNewLoad(String Filename, uint uiInstrumentIndex, Engine* pEngine);
43     virtual ~LSCPInstrumentLoader();
44     protected:
45     struct command_t {
46     String Filename;
47     uint uiInstrumentIndex;
48     Engine* pEngine;
49     };
50    
51     // Instance variables.
52     RingBuffer<command_t>* pQueue; ///< queue with commands for loading new instruments.
53    
54     int Main(); ///< Implementation of virtual method from class Thread.
55     };
56    
57     #endif // __LSCPINSTRUMENTLOADER_H__

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