blob: 6a60880537aa77631a68db135c90bda117e5a638 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
#ifndef __DRUMGIZMO_CACHEMANAGER_H__
#define __DRUMGIZMO_CACHEMANAGER_H__
#include <string>
#include <list>
#include <vector>
#include "thread.h"
#include "semaphore.h"
#include "mutex.h"
#include "audiotypes.h"
#include "audiofile.h"
#define CACHE_DUMMYID -2
#define CACHE_NOID -1
class AudioFile;
typedef int cacheid_t;
class CacheManager : public Thread {
public:
CacheManager();
~CacheManager();
void init(size_t poolsize);
void deinit();
void thread_main();
sample_t *open(AudioFile *file, size_t initial_samples_needed, int channel, cacheid_t &new_id);
sample_t *next(cacheid_t id, size_t &size);
void close(cacheid_t id);
private:
void pushEvent();
typedef struct {
AudioFile *file;
int channel;
size_t pos;
sample_t *front;
sample_t *back;
} cache_t;
enum cmd_t {
LOADNEXT = 0,
CLEAN = 1
};
typedef struct {
bool active;
cacheid_t id;
size_t pos;
cmd_t cmd;
} event_t;
CacheManager::event_t createLoadNextEvent(cacheid_t id, size_t pos, cmd_t type);
void loadNext(cacheid_t id);
void pushEvent(event_t e);
const cache_t getNextCache(cacheid_t id);
std::list<event_t> eventqueue;
std::list<cacheid_t> availableids;
std::vector<cache_t> id2cache;
Mutex m_events;
Mutex m_ids;
Mutex m_caches;
Semaphore sem;
int running;
};
#endif
|