main_surfaceflinger.cpp revision ac8d239dd7c22fc2be4e2d470b9d164c3c9285e9 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <sys/resource.h>
18
19#include <cutils/sched_policy.h>
20#include <binder/IServiceManager.h>
21#include <binder/IPCThreadState.h>
22#include <binder/ProcessState.h>
23#include <binder/IServiceManager.h>
24#include "SurfaceFlinger.h"
25
26using namespace android;
27
28int main(int, char**) {
29    signal(SIGPIPE, SIG_IGN);
30    // When SF is launched in its own process, limit the number of
31    // binder threads to 4.
32    ProcessState::self()->setThreadPoolMaxThreadCount(4);
33
34    // start the thread pool
35    sp<ProcessState> ps(ProcessState::self());
36    ps->startThreadPool();
37
38    // instantiate surfaceflinger
39    sp<SurfaceFlinger> flinger = new SurfaceFlinger();
40
41    setpriority(PRIO_PROCESS, 0, PRIORITY_URGENT_DISPLAY);
42
43    set_sched_policy(0, SP_FOREGROUND);
44
45#ifdef ENABLE_CPUSETS
46    // Put most SurfaceFlinger threads in the system-background cpuset
47    // Keeps us from unnecessarily using big cores
48    // Do this after the binder thread pool init
49    set_cpuset_policy(0, SP_SYSTEM);
50#endif
51
52    // initialize before clients can connect
53    flinger->init();
54
55    // publish surface flinger
56    sp<IServiceManager> sm(defaultServiceManager());
57    sm->addService(String16(SurfaceFlinger::getServiceName()), flinger, false);
58
59    // run in this thread
60    flinger->run();
61
62    return 0;
63}
64