1 |
/*************************************************************************** |
2 |
* * |
3 |
* Copyright (C) 2005, 2006 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 __LS_INSTRUMENTLOADER_H__ |
22 |
#define __LS_INSTRUMENTLOADER_H__ |
23 |
|
24 |
#include "../common/global.h" |
25 |
#include "../common/Thread.h" |
26 |
#include "../common/Condition.h" |
27 |
#include "../common/Mutex.h" |
28 |
#include "../Sampler.h" |
29 |
#include "InstrumentManager.h" |
30 |
|
31 |
#include <list> |
32 |
|
33 |
namespace LinuxSampler { |
34 |
|
35 |
/** @brief Used by InstrumentManager for background tasks. |
36 |
* |
37 |
* This class is just an encapsulation of tasks that should be done by |
38 |
* the InstrumentManager in the background, that is in a separate thread |
39 |
* without blocking the calling thread. This class is thus not exported |
40 |
* to the API. |
41 |
*/ |
42 |
class InstrumentManagerThread : public Thread { |
43 |
public: |
44 |
InstrumentManagerThread(); |
45 |
void StartNewLoad(String Filename, uint uiInstrumentIndex, EngineChannel* pEngineChannel); |
46 |
void StartSettingMode(InstrumentManager* pManager, const InstrumentManager::instrument_id_t& ID, InstrumentManager::mode_t Mode); |
47 |
virtual ~InstrumentManagerThread(); |
48 |
protected: |
49 |
struct command_t { |
50 |
enum cmd_type_t { |
51 |
DIRECT_LOAD, ///< command was created by a StartNewLoad() call |
52 |
INSTR_MODE ///< command was created by a StartSettingMode() call |
53 |
} type; |
54 |
EngineChannel* pEngineChannel; ///< only for DIRECT_LOAD commands |
55 |
InstrumentManager* pManager; ///< only for INSTR_MODE commands |
56 |
InstrumentManager::instrument_id_t instrumentId; ///< only for INSTR_MODE commands |
57 |
InstrumentManager::mode_t mode; ///< only for INSTR_MODE commands |
58 |
}; |
59 |
|
60 |
// Instance variables. |
61 |
std::list<command_t> queue; ///< queue with commands for loading new instruments. |
62 |
Mutex mutex; ///< for making the queue thread safe |
63 |
Condition conditionJobsLeft; ///< synchronizer to block this thread until a new job arrives |
64 |
|
65 |
int Main(); ///< Implementation of virtual method from class Thread. |
66 |
}; |
67 |
|
68 |
} // namespace LinuxSampler |
69 |
|
70 |
#endif // __LS_INSTRUMENTLOADER_H__ |