blob: 148fb7bbe8a9193c12f3ef553b8391f70c10c656 (
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
|
/*
* Copyright (C) 2014 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 ANDROID_AUDIO_FAST_THREAD_STATE_H
#define ANDROID_AUDIO_FAST_THREAD_STATE_H
#include <stdint.h>
#include <media/nbaio/NBLog.h>
namespace android {
// Represents a single state of a FastThread
struct FastThreadState {
FastThreadState();
/*virtual*/ ~FastThreadState();
typedef uint32_t Command;
static const Command
INITIAL = 0, // used only for the initial state
HOT_IDLE = 1, // do nothing
COLD_IDLE = 2, // wait for the futex
IDLE = 3, // either HOT_IDLE or COLD_IDLE
EXIT = 4; // exit from thread
// additional values defined per subclass
Command mCommand;
int32_t* mColdFutexAddr; // for COLD_IDLE only, pointer to the associated futex
unsigned mColdGen; // increment when COLD_IDLE is requested so it's only performed once
NBLog::Writer* mNBLogWriter; // non-blocking logger
}; // struct FastThreadState
} // android
#endif // ANDROID_AUDIO_FAST_THREAD_STATE_H
|
