Snap for 6916203 from 5f87c17a36538e3469aa1aa6b51dc68a34f14ecf to mainline-release
Change-Id: I3867b3b0970fd070047c53b152e31e5ccecd9766
diff --git a/services/sensorservice/SensorEventConnection.cpp b/services/sensorservice/SensorEventConnection.cpp
index b4b5f98..6c86712 100644
--- a/services/sensorservice/SensorEventConnection.cpp
+++ b/services/sensorservice/SensorEventConnection.cpp
@@ -14,6 +14,7 @@
* limitations under the License.
*/
+#include <log/log.h>
#include <sys/socket.h>
#include <utils/threads.h>
@@ -47,20 +48,13 @@
SensorService::SensorEventConnection::~SensorEventConnection() {
ALOGD_IF(DEBUG_CONNECTIONS, "~SensorEventConnection(%p)", this);
destroy();
-}
-
-void SensorService::SensorEventConnection::destroy() {
- Mutex::Autolock _l(mDestroyLock);
-
- // destroy once only
- if (mDestroyed) {
- return;
- }
-
mService->cleanupConnection(this);
if (mEventCache != nullptr) {
delete[] mEventCache;
}
+}
+
+void SensorService::SensorEventConnection::destroy() {
mDestroyed = true;
}
@@ -665,6 +659,11 @@
int handle, bool enabled, nsecs_t samplingPeriodNs, nsecs_t maxBatchReportLatencyNs,
int reservedFlags)
{
+ if (mDestroyed) {
+ android_errorWriteLog(0x534e4554, "168211968");
+ return DEAD_OBJECT;
+ }
+
status_t err;
if (enabled) {
err = mService->enable(this, handle, samplingPeriodNs, maxBatchReportLatencyNs,
@@ -679,10 +678,19 @@
status_t SensorService::SensorEventConnection::setEventRate(
int handle, nsecs_t samplingPeriodNs)
{
+ if (mDestroyed) {
+ android_errorWriteLog(0x534e4554, "168211968");
+ return DEAD_OBJECT;
+ }
+
return mService->setEventRate(this, handle, samplingPeriodNs, mOpPackageName);
}
status_t SensorService::SensorEventConnection::flush() {
+ if (mDestroyed) {
+ return DEAD_OBJECT;
+ }
+
return mService->flushSensor(this, mOpPackageName);
}
diff --git a/services/sensorservice/SensorEventConnection.h b/services/sensorservice/SensorEventConnection.h
index 8f2d5db..9487a39 100644
--- a/services/sensorservice/SensorEventConnection.h
+++ b/services/sensorservice/SensorEventConnection.h
@@ -17,6 +17,7 @@
#ifndef ANDROID_SENSOR_EVENT_CONNECTION_H
#define ANDROID_SENSOR_EVENT_CONNECTION_H
+#include <atomic>
#include <stdint.h>
#include <sys/types.h>
#include <unordered_map>
@@ -182,8 +183,8 @@
int mTotalAcksNeeded, mTotalAcksReceived;
#endif
- mutable Mutex mDestroyLock;
- bool mDestroyed;
+ // Used to track if this object was inappropriately used after destroy().
+ std::atomic_bool mDestroyed;
// Store a mapping of sensor handles to required AppOp for a sensor. This map only contains a
// valid mapping for sensors that require a permission in order to reduce the lookup time.
