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Bug fix for wakeup sensors.

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SensorService should hold a wakelock till the app reads events from a wakeup sensor. Currently drivers hold a wakelock with a
timeout while delivering events from a wake up sensor like Significant Motion. This hack can be removed now.
Bug: 9774884

Change-Id: I6cab0147c63f57a494a61f4dfe2a64a27dfe1b4e
This commit is contained in:
Aravind Akella
2014-02-11 18:44:42 -08:00
parent 3a025393b5
commit 35187bd5c1
2 changed files with 7 additions and 5 deletions
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5
core/jni/android_hardware_SensorManager.cpp
View File

@@ -160,7 +160,6 @@ private:
ASensorEvent buffer[16];
while ((n = q->read(buffer, 16)) > 0) {
for (int i=0 ; i<n ; i++) {
if (buffer[i].type == SENSOR_TYPE_STEP_COUNTER) {
// step-counter returns a uint64, but the java API only deals with floats
float value = float(buffer[i].u64.step_counter);
@@ -183,17 +182,17 @@ private:
buffer[i].vector.status,
buffer[i].timestamp);
}
if (env->ExceptionCheck()) {
mSensorQueue->sendAck(buffer, n);
ALOGE("Exception dispatching input event.");
return 1;
}
}
mSensorQueue->sendAck(buffer, n);
}
if (n<0 && n != -EAGAIN) {
// FIXME: error receiving events, what to do in this case?
}
return 1;
}
};

7
native/android/sensor.cpp
View File

@@ -123,10 +123,13 @@ int ASensorEventQueue_hasEvents(ASensorEventQueue* queue)
ssize_t ASensorEventQueue_getEvents(ASensorEventQueue* queue,
ASensorEvent* events, size_t count)
{
return static_cast<SensorEventQueue*>(queue)->read(events, count);
ssize_t actual = static_cast<SensorEventQueue*>(queue)->read(events, count);
if (actual > 0) {
static_cast<SensorEventQueue*>(queue)->sendAck(events, actual);
}
return actual;
}
/*****************************************************************************/
const char* ASensor_getName(ASensor const* sensor)