1 /*
2  * Copyright (c) 2012, The Linux Foundation. All rights reserved.
3 
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are
6  * met:
7  *   * Redistributions of source code must retain the above copyright
8  *     notice, this list of conditions and the following disclaimer.
9  *   * Redistributions in binary form must reproduce the above
10  *     copyright notice, this list of conditions and the following
11  *     disclaimer in the documentation and/or other materials provided
12  *     with the distribution.
13  *   * Neither the name of The Linux Foundation nor the names of its
14  *     contributors may be used to endorse or promote products derived
15  *     from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
18  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
26  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29 
30 #ifndef INCLUDE_IDLEINVALIDATOR
31 #define INCLUDE_IDLEINVALIDATOR
32 
33 #include <cutils/log.h>
34 #include <utils/threads.h>
35 #include <gr.h>
36 
37 typedef void (*InvalidatorHandler)(void*);
38 
39 class IdleInvalidator : public android::Thread {
40     void *mHwcContext;
41     int mTimeoutEventFd;
42     static InvalidatorHandler mHandler;
43     static android::sp<IdleInvalidator> sInstance;
44 
45     public:
46     IdleInvalidator();
47     /* init timer obj */
48     int init(InvalidatorHandler reg_handler, void* user_data, unsigned int
49              idleSleepTime);
50     /*Overrides*/
51     virtual bool        threadLoop();
52     virtual int         readyToRun();
53     virtual void        onFirstRef();
54     static IdleInvalidator *getInstance();
55 };
56 
57 #endif // INCLUDE_IDLEINVALIDATOR
58