Merge "graphics: use FIFO scheduler in IComposer"

    class hal

    user system

    group graphics drmrpc readproc

    capabilities SYS_NICE

    onrestart restart surfaceflinger

#define LOG_TAG "android.hardware.graphics.composer@2.1-service"

#include <sched.h>

#include <android/hardware/graphics/composer/2.1/IComposer.h>

#include <binder/ProcessState.h>

    android::ProcessState::self()->setThreadPoolMaxThreadCount(4);

    android::ProcessState::self()->startThreadPool();

    // same as SF main thread

    struct sched_param param = {0};

    param.sched_priority = 2;

    if (sched_setscheduler(0, SCHED_FIFO | SCHED_RESET_ON_FORK,

                &param) != 0) {

        ALOGE("Couldn't set SCHED_FIFO: %d", errno);

    }

    return defaultPassthroughServiceImplementation<IComposer>("hwcomposer");

}