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Merge "Avoiding flush on-change sensors at subscription" into mnc-dr-dev am: a78c2e65e1

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am: ffb07f645e

* commit 'ffb07f645e12b5c32479bba74b3310353edf691a':
  Avoiding flush on-change sensors at subscription
This commit is contained in:
Peng Xu 2015-10-29 16:46:18 +00:00 committed by android-build-merger
commit e4db21f4b8
1 changed files with 9 additions and 4 deletions
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13
services/sensorservice/SensorService.cpp
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@ -912,10 +912,15 @@ status_t SensorService::enable(const sp<SensorEventConnection>& connection,
status_t err = sensor->batch(connection.get(), handle, 0, samplingPeriodNs,
maxBatchReportLatencyNs);
// Call flush() before calling activate() on the sensor. Wait for a first flush complete
// event before sending events on this connection. Ignore one-shot sensors which don't
// support flush(). Also if this sensor isn't already active, don't call flush().
if (err == NO_ERROR && sensor->getSensor().getReportingMode() != AREPORTING_MODE_ONE_SHOT &&
// Call flush() before calling activate() on the sensor. Wait for a first
// flush complete event before sending events on this connection. Ignore
// one-shot sensors which don't support flush(). Ignore on-change sensors
// to maintain the on-change logic (any on-change events except the initial
// one should be trigger by a change in value). Also if this sensor isn't
// already active, don't call flush().
if (err == NO_ERROR &&
sensor->getSensor().getReportingMode() != AREPORTING_MODE_ONE_SHOT &&
sensor->getSensor().getReportingMode() != AREPORTING_MODE_ON_CHANGE &&
rec->getNumConnections() > 1) {
connection->setFirstFlushPending(handle, true);
status_t err_flush = sensor->flush(connection.get(), handle);