blob: 150cdbac22b92e885a4416059262155dc119a1a7 (
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
|
/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef A_LOOPER_H_
#define A_LOOPER_H_
#include <media/stagefright/foundation/ABase.h>
#include <media/stagefright/foundation/AString.h>
#include <utils/Errors.h>
#include <utils/KeyedVector.h>
#include <utils/List.h>
#include <utils/RefBase.h>
#include <utils/threads.h>
namespace android {
struct AHandler;
struct AMessage;
struct ALooper : public RefBase {
typedef int32_t event_id;
typedef int32_t handler_id;
ALooper();
// Takes effect in a subsequent call to start().
void setName(const char *name);
handler_id registerHandler(const sp<AHandler> &handler);
void unregisterHandler(handler_id handlerID);
status_t start(
bool runOnCallingThread = false,
bool canCallJava = false,
int32_t priority = PRIORITY_DEFAULT
);
status_t stop();
static int64_t GetNowUs();
const char *getName() const {
return mName.c_str();
}
protected:
virtual ~ALooper();
private:
friend struct AMessage; // post()
struct Event {
int64_t mWhenUs;
sp<AMessage> mMessage;
};
Mutex mLock;
Condition mQueueChangedCondition;
AString mName;
List<Event> mEventQueue;
struct LooperThread;
sp<LooperThread> mThread;
bool mRunningLocally;
void post(const sp<AMessage> &msg, int64_t delayUs);
bool loop();
DISALLOW_EVIL_CONSTRUCTORS(ALooper);
};
} // namespace android
#endif // A_LOOPER_H_
|