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Bug fixes for SensorService 

i) Emulate Flush for AOSP Fusion Sesnsors on newer HALs that support batching.
ii) Early return if there are no events for the current SensorEventConnection.

Bug: 11325707, 11376538

Change-Id: Idb856302463649a99d3d5d0c965bb06ba06b8e1d
This commit is contained in:
Aravind Akella 2013-10-15 15:43:10 -07:00
parent 8507586903
commit b4099e77ec
2 changed files with 12 additions and 1 deletions
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12
services/sensorservice/SensorService.cpp
View File

@ -480,6 +480,11 @@ String8 SensorService::getSensorName(int handle) const {
return result;
}
bool SensorService::isVirtualSensor(int handle) const {
SensorInterface* sensor = mSensorMap.valueFor(handle);
return sensor->isVirtual();
}
Vector<Sensor> SensorService::getSensorList()
{
char value[PROPERTY_VALUE_MAX];
@ -858,6 +863,11 @@ status_t SensorService::SensorEventConnection::sendEvents(
}
}
// Early return if there are no events for this connection.
if (count == 0) {
return status_t(NO_ERROR);
}
// NOTE: ASensorEvent and sensors_event_t are the same type
ssize_t size = SensorEventQueue::write(mChannel,
reinterpret_cast<ASensorEvent const*>(scratch), count);
@ -922,7 +932,7 @@ status_t SensorService::SensorEventConnection::flush() {
// Loop through all sensors for this connection and call flush on each of them.
for (size_t i = 0; i < mSensorInfo.size(); ++i) {
const int handle = mSensorInfo.keyAt(i);
if (halVersion < SENSORS_DEVICE_API_VERSION_1_1) {
if (halVersion < SENSORS_DEVICE_API_VERSION_1_1 || mService->isVirtualSensor(handle)) {
// For older devices just increment pending flush count which will send a trivial
// flush complete event.
FlushInfo& flushInfo = mSensorInfo.editValueFor(handle);

1
services/sensorservice/SensorService.h
View File

@ -130,6 +130,7 @@ class SensorService :
DefaultKeyedVector<int, SensorInterface*> getActiveVirtualSensors() const;
String8 getSensorName(int handle) const;
bool isVirtualSensor(int handle) const;
void recordLastValue(sensors_event_t const * buffer, size_t count);
static void sortEventBuffer(sensors_event_t* buffer, size_t count);
Sensor registerSensor(SensorInterface* sensor);