[Android]Binder提前关掉导致通讯失败

1.提前关掉/dev/binder

IPCThreadState::self()->stopProcess();

1. 如果此时有以下类似代码，还要去获取某一个service，会一直死循环

gAudioFlingerClient由于media server crash,会被clear，但是defaultServiceManager()是正常的，一直存在全局变量里

const sp & AudioSystem::get_audio_flinger()
{

Mutex::Autolock _l(gLock);
if (gAudioFlinger == 0) {
    sp<IServiceManager> sm = defaultServiceManager();
    sp<IBinder> binder;
    do {
        binder = sm->getService(String16("media.audio_flinger"));
        if (binder != 0)
            break;
        ALOGW("AudioFlinger not published, waiting...");
        usleep(500000); 
    } while (true);

Binder thread如何起来? 通过spawnPooledThread()可以起来类似"Binder_2"名字的thread.

会有几个Binder thread?

void ProcessState::spawnPooledThread(bool isMain)
{

if (mThreadPoolStarted) {
    int32_t s = android_atomic_add(1, &mThreadPoolSeq);
    char buf[16];
    snprintf(buf, sizeof(buf), "Binder_%X", s);
    ALOGV("Spawning new pooled thread, name=%s\n", buf);
    sp<Thread> t = new PoolThread(isMain);
    t->run(buf);
}

}