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 <sched.h>
20
21 #include <cutils/sched_policy.h>
22 #include <binder/IServiceManager.h>
23 #include <binder/IPCThreadState.h>
24 #include <binder/ProcessState.h>
25 #include <binder/IServiceManager.h>
26 #include "GpuService.h"
27 #include "SurfaceFlinger.h"
28
29 using namespace android;
30
main(int,char **)31 int main(int, char**) {
32 signal(SIGPIPE, SIG_IGN);
33 // When SF is launched in its own process, limit the number of
34 // binder threads to 4.
35 ProcessState::self()->setThreadPoolMaxThreadCount(4);
36
37 // start the thread pool
38 sp<ProcessState> ps(ProcessState::self());
39 ps->startThreadPool();
40
41 // instantiate surfaceflinger
42 sp<SurfaceFlinger> flinger = new SurfaceFlinger();
43
44 setpriority(PRIO_PROCESS, 0, PRIORITY_URGENT_DISPLAY);
45
46 set_sched_policy(0, SP_FOREGROUND);
47
48 #ifdef ENABLE_CPUSETS
49 // Put most SurfaceFlinger threads in the system-background cpuset
50 // Keeps us from unnecessarily using big cores
51 // Do this after the binder thread pool init
52 set_cpuset_policy(0, SP_SYSTEM);
53 #endif
54
55 // initialize before clients can connect
56 flinger->init();
57
58 // publish surface flinger
59 sp<IServiceManager> sm(defaultServiceManager());
60 sm->addService(String16(SurfaceFlinger::getServiceName()), flinger, false);
61
62 // publish GpuService
63 sp<GpuService> gpuservice = new GpuService();
64 sm->addService(String16(GpuService::SERVICE_NAME), gpuservice, false);
65
66 struct sched_param param = {0};
67 param.sched_priority = 2;
68 if (sched_setscheduler(0, SCHED_FIFO, ¶m) != 0) {
69 ALOGE("Couldn't set SCHED_FIFO");
70 }
71
72 // run surface flinger in this thread
73 flinger->run();
74
75 return 0;
76 }
77