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Merge "Revert "Revert "Increase HidRawSensor thread priority to reduce latency""" into main am: 095c6960f8 am: 60b7e3a576

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Original change: https://android-review.googlesource.com/c/platform/hardware/libhardware/+/2755006

Change-Id: I0adccc4507cff40ae262c2b676d46931a5d8f92e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
This commit is contained in:
Treehugger Robot 2023-09-18 23:19:02 +00:00 committed by Automerger Merge Worker
commit 5f6bfea312
2 changed files with 12 additions and 1 deletions
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12
modules/sensors/dynamic_sensor/HidRawSensorDevice.cpp
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@ -35,6 +35,15 @@ using namespace Hid::Sensor::PropertyUsage;
const std::unordered_set<unsigned int> HidRawSensorDevice::sInterested{
ACCELEROMETER_3D, GYROMETER_3D, COMPASS_3D, CUSTOM};
void HidRawSensorDevice::enableSchedFifoMode() {
constexpr int kHidRawSensorPriority = 10; // Matches with sensor service priority
struct sched_param param = {0};
param.sched_priority = kHidRawSensorPriority;
if (sched_setscheduler(getTid(), SCHED_FIFO | SCHED_RESET_ON_FORK, &param) != 0) {
ALOGE("Couldn't set SCHED_FIFO for HidRawSensor thread: %s", strerror(errno));
}
}
sp<HidRawSensorDevice> HidRawSensorDevice::create(const std::string &devName) {
sp<HidRawSensorDevice> device(new HidRawSensorDevice(devName));
// offset +1 strong count added by constructor
@ -74,7 +83,8 @@ HidRawSensorDevice::HidRawSensorDevice(const std::string &devName)
return;
}
run("HidRawSensor");
run("HidRawSensor", PRIORITY_URGENT_DISPLAY);
enableSchedFifoMode();
mValid = true;
}

1
modules/sensors/dynamic_sensor/HidRawSensorDevice.h
View file

@ -41,6 +41,7 @@ private:
// constructor will result in +1 strong count
explicit HidRawSensorDevice(const std::string &devName);
void enableSchedFifoMode();
// implement function of Thread
virtual bool threadLoop() override;
std::unordered_map<unsigned int/*reportId*/, sp<HidRawSensor>> mSensors;