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authorMathias Agopian <mathias@google.com>2012-09-19 16:26:30 -0700
committerAndroid (Google) Code Review <android-gerrit@google.com>2012-09-19 16:26:31 -0700
commit3a24e8f160c7794f44ef9fd5c70a61ff62412717 (patch)
treeaabb6c1868ec93e79d6a6c6c143f2a3a631a47a5 /services
parentd56eff2f49e64bb71863ffb866af8c3f686b96e9 (diff)
parent787ac1b388f144f5e6dd38f8b807866a5256dafc (diff)
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Merge changes I561c198c,Id4865f3c into jb-mr1-dev
* changes: improve sensor battery usage tracking track UID with connections
Diffstat (limited to 'services')
-rw-r--r--services/sensorservice/Android.mk1
-rw-r--r--services/sensorservice/BatteryService.cpp126
-rw-r--r--services/sensorservice/BatteryService.h71
-rw-r--r--services/sensorservice/SensorDevice.cpp75
-rw-r--r--services/sensorservice/SensorService.cpp14
-rw-r--r--services/sensorservice/SensorService.h5
6 files changed, 215 insertions, 77 deletions
diff --git a/services/sensorservice/Android.mk b/services/sensorservice/Android.mk
index 6a302c0..e0cfaa6 100644
--- a/services/sensorservice/Android.mk
+++ b/services/sensorservice/Android.mk
@@ -2,6 +2,7 @@ LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
LOCAL_SRC_FILES:= \
+ BatteryService.cpp \
CorrectedGyroSensor.cpp \
Fusion.cpp \
GravitySensor.cpp \
diff --git a/services/sensorservice/BatteryService.cpp b/services/sensorservice/BatteryService.cpp
new file mode 100644
index 0000000..70b65ab
--- /dev/null
+++ b/services/sensorservice/BatteryService.cpp
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+#include <math.h>
+#include <sys/types.h>
+
+#include <utils/Atomic.h>
+#include <utils/Errors.h>
+#include <utils/Singleton.h>
+
+#include <binder/BinderService.h>
+#include <binder/Parcel.h>
+
+#include "BatteryService.h"
+
+namespace android {
+// ---------------------------------------------------------------------------
+
+BatteryService::BatteryService() {
+ const sp<IServiceManager> sm(defaultServiceManager());
+ if (sm != NULL) {
+ const String16 name("batteryinfo");
+ mBatteryStatService = sm->getService(name);
+ }
+}
+
+status_t BatteryService::noteStartSensor(int uid, int handle) {
+ Parcel data, reply;
+ data.writeInterfaceToken(DESCRIPTOR);
+ data.writeInt32(uid);
+ data.writeInt32(handle);
+ status_t err = mBatteryStatService->transact(
+ TRANSACTION_noteStartSensor, data, &reply, 0);
+ err = reply.readExceptionCode();
+ return err;
+}
+
+status_t BatteryService::noteStopSensor(int uid, int handle) {
+ Parcel data, reply;
+ data.writeInterfaceToken(DESCRIPTOR);
+ data.writeInt32(uid);
+ data.writeInt32(handle);
+ status_t err = mBatteryStatService->transact(
+ TRANSACTION_noteStopSensor, data, &reply, 0);
+ err = reply.readExceptionCode();
+ return err;
+}
+
+bool BatteryService::addSensor(uid_t uid, int handle) {
+ Mutex::Autolock _l(mActivationsLock);
+ Info key(uid, handle);
+ ssize_t index = mActivations.indexOf(key);
+ if (index < 0) {
+ index = mActivations.add(key);
+ }
+ Info& info(mActivations.editItemAt(index));
+ info.count++;
+ return info.count == 1;
+}
+
+bool BatteryService::removeSensor(uid_t uid, int handle) {
+ Mutex::Autolock _l(mActivationsLock);
+ ssize_t index = mActivations.indexOf(Info(uid, handle));
+ if (index < 0) return false;
+ Info& info(mActivations.editItemAt(index));
+ info.count--;
+ return info.count == 0;
+}
+
+
+void BatteryService::enableSensorImpl(uid_t uid, int handle) {
+ if (mBatteryStatService != 0) {
+ if (addSensor(uid, handle)) {
+ int64_t identity = IPCThreadState::self()->clearCallingIdentity();
+ noteStartSensor(uid, handle);
+ IPCThreadState::self()->restoreCallingIdentity(identity);
+ }
+ }
+}
+void BatteryService::disableSensorImpl(uid_t uid, int handle) {
+ if (mBatteryStatService != 0) {
+ if (removeSensor(uid, handle)) {
+ int64_t identity = IPCThreadState::self()->clearCallingIdentity();
+ noteStopSensor(uid, handle);
+ IPCThreadState::self()->restoreCallingIdentity(identity);
+ }
+ }
+}
+
+void BatteryService::cleanupImpl(uid_t uid) {
+ if (mBatteryStatService != 0) {
+ Mutex::Autolock _l(mActivationsLock);
+ int64_t identity = IPCThreadState::self()->clearCallingIdentity();
+ for (ssize_t i=0 ; i<mActivations.size() ; i++) {
+ const Info& info(mActivations[i]);
+ if (info.uid == uid) {
+ noteStopSensor(info.uid, info.handle);
+ mActivations.removeAt(i);
+ i--;
+ }
+ }
+ IPCThreadState::self()->restoreCallingIdentity(identity);
+ }
+}
+
+const String16 BatteryService::DESCRIPTOR("com.android.internal.app.IBatteryStats");
+
+ANDROID_SINGLETON_STATIC_INSTANCE(BatteryService)
+
+// ---------------------------------------------------------------------------
+}; // namespace android
+
diff --git a/services/sensorservice/BatteryService.h b/services/sensorservice/BatteryService.h
new file mode 100644
index 0000000..86cc884
--- /dev/null
+++ b/services/sensorservice/BatteryService.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Singleton.h>
+
+namespace android {
+// ---------------------------------------------------------------------------
+
+class BatteryService : public Singleton<BatteryService> {
+ static const int TRANSACTION_noteStartSensor = IBinder::FIRST_CALL_TRANSACTION + 3;
+ static const int TRANSACTION_noteStopSensor = IBinder::FIRST_CALL_TRANSACTION + 4;
+ static const String16 DESCRIPTOR;
+
+ friend class Singleton<BatteryService>;
+ sp<IBinder> mBatteryStatService;
+
+ BatteryService();
+ status_t noteStartSensor(int uid, int handle);
+ status_t noteStopSensor(int uid, int handle);
+
+ void enableSensorImpl(uid_t uid, int handle);
+ void disableSensorImpl(uid_t uid, int handle);
+ void cleanupImpl(uid_t uid);
+
+ struct Info {
+ uid_t uid;
+ int handle;
+ int32_t count;
+ Info() : uid(0), handle(0), count(0) { }
+ Info(uid_t uid, int handle) : uid(uid), handle(handle), count(0) { }
+ bool operator < (const Info& rhs) const {
+ return (uid == rhs.uid) ? (handle < rhs.handle) : (uid < rhs.uid);
+ }
+ };
+
+ Mutex mActivationsLock;
+ SortedVector<Info> mActivations;
+ bool addSensor(uid_t uid, int handle);
+ bool removeSensor(uid_t uid, int handle);
+
+public:
+ static void enableSensor(uid_t uid, int handle) {
+ BatteryService::getInstance().enableSensorImpl(uid, handle);
+ }
+ static void disableSensor(uid_t uid, int handle) {
+ BatteryService::getInstance().disableSensorImpl(uid, handle);
+ }
+ static void cleanup(uid_t uid) {
+ BatteryService::getInstance().cleanupImpl(uid);
+ }
+};
+
+// ---------------------------------------------------------------------------
+}; // namespace android
+
diff --git a/services/sensorservice/SensorDevice.cpp b/services/sensorservice/SensorDevice.cpp
index 2244a86..a9e3ef4 100644
--- a/services/sensorservice/SensorDevice.cpp
+++ b/services/sensorservice/SensorDevice.cpp
@@ -33,68 +33,6 @@
namespace android {
// ---------------------------------------------------------------------------
-class BatteryService : public Singleton<BatteryService> {
- static const int TRANSACTION_noteStartSensor = IBinder::FIRST_CALL_TRANSACTION + 3;
- static const int TRANSACTION_noteStopSensor = IBinder::FIRST_CALL_TRANSACTION + 4;
- static const String16 DESCRIPTOR;
-
- friend class Singleton<BatteryService>;
- sp<IBinder> mBatteryStatService;
-
- BatteryService() {
- const sp<IServiceManager> sm(defaultServiceManager());
- if (sm != NULL) {
- const String16 name("batteryinfo");
- mBatteryStatService = sm->getService(name);
- }
- }
-
- status_t noteStartSensor(int uid, int handle) {
- Parcel data, reply;
- data.writeInterfaceToken(DESCRIPTOR);
- data.writeInt32(uid);
- data.writeInt32(handle);
- status_t err = mBatteryStatService->transact(
- TRANSACTION_noteStartSensor, data, &reply, 0);
- err = reply.readExceptionCode();
- return err;
- }
-
- status_t noteStopSensor(int uid, int handle) {
- Parcel data, reply;
- data.writeInterfaceToken(DESCRIPTOR);
- data.writeInt32(uid);
- data.writeInt32(handle);
- status_t err = mBatteryStatService->transact(
- TRANSACTION_noteStopSensor, data, &reply, 0);
- err = reply.readExceptionCode();
- return err;
- }
-
-public:
- void enableSensor(int handle) {
- if (mBatteryStatService != 0) {
- int uid = IPCThreadState::self()->getCallingUid();
- int64_t identity = IPCThreadState::self()->clearCallingIdentity();
- noteStartSensor(uid, handle);
- IPCThreadState::self()->restoreCallingIdentity(identity);
- }
- }
- void disableSensor(int handle) {
- if (mBatteryStatService != 0) {
- int uid = IPCThreadState::self()->getCallingUid();
- int64_t identity = IPCThreadState::self()->clearCallingIdentity();
- noteStopSensor(uid, handle);
- IPCThreadState::self()->restoreCallingIdentity(identity);
- }
- }
-};
-
-const String16 BatteryService::DESCRIPTOR("com.android.internal.app.IBatteryStats");
-
-ANDROID_SINGLETON_STATIC_INSTANCE(BatteryService)
-
-// ---------------------------------------------------------------------------
ANDROID_SINGLETON_STATIC_INSTANCE(SensorDevice)
@@ -218,16 +156,9 @@ status_t SensorDevice::activate(void* ident, int handle, int enabled)
ALOGD_IF(DEBUG_CONNECTIONS, "\t>>> actuating h/w");
err = mSensorDevice->activate(mSensorDevice, handle, enabled);
- if (enabled) {
- ALOGE_IF(err, "Error activating sensor %d (%s)", handle, strerror(-err));
- if (err == 0) {
- BatteryService::getInstance().enableSensor(handle);
- }
- } else {
- if (err == 0) {
- BatteryService::getInstance().disableSensor(handle);
- }
- }
+ ALOGE_IF(err, "Error %s sensor %d (%s)",
+ enabled ? "activating" : "disabling",
+ handle, strerror(-err));
}
{ // scope for the lock
diff --git a/services/sensorservice/SensorService.cpp b/services/sensorservice/SensorService.cpp
index c9b0f7c..e3dcd02 100644
--- a/services/sensorservice/SensorService.cpp
+++ b/services/sensorservice/SensorService.cpp
@@ -39,6 +39,7 @@
#include <hardware/sensors.h>
+#include "BatteryService.h"
#include "CorrectedGyroSensor.h"
#include "GravitySensor.h"
#include "LinearAccelerationSensor.h"
@@ -383,7 +384,8 @@ Vector<Sensor> SensorService::getSensorList()
sp<ISensorEventConnection> SensorService::createSensorEventConnection()
{
- sp<SensorEventConnection> result(new SensorEventConnection(this));
+ uid_t uid = IPCThreadState::self()->getCallingUid();
+ sp<SensorEventConnection> result(new SensorEventConnection(this, uid));
return result;
}
@@ -420,6 +422,7 @@ void SensorService::cleanupConnection(SensorEventConnection* c)
}
}
mActiveConnections.remove(connection);
+ BatteryService::cleanup(c->getUid());
}
status_t SensorService::enable(const sp<SensorEventConnection>& connection,
@@ -457,6 +460,7 @@ status_t SensorService::enable(const sp<SensorEventConnection>& connection,
if (err == NO_ERROR) {
// connection now active
if (connection->addSensor(handle)) {
+ BatteryService::enableSensor(connection->getUid(), handle);
// the sensor was added (which means it wasn't already there)
// so, see if this connection becomes active
if (mActiveConnections.indexOf(connection) < 0) {
@@ -482,7 +486,9 @@ status_t SensorService::disable(const sp<SensorEventConnection>& connection,
SensorRecord* rec = mActiveSensors.valueFor(handle);
if (rec) {
// see if this connection becomes inactive
- connection->removeSensor(handle);
+ if (connection->removeSensor(handle)) {
+ BatteryService::disableSensor(connection->getUid(), handle);
+ }
if (connection->hasAnySensor() == false) {
mActiveConnections.remove(connection);
}
@@ -553,8 +559,8 @@ bool SensorService::SensorRecord::removeConnection(
// ---------------------------------------------------------------------------
SensorService::SensorEventConnection::SensorEventConnection(
- const sp<SensorService>& service)
- : mService(service), mChannel(new BitTube())
+ const sp<SensorService>& service, uid_t uid)
+ : mService(service), mChannel(new BitTube()), mUid(uid)
{
}
diff --git a/services/sensorservice/SensorService.h b/services/sensorservice/SensorService.h
index 54a76e8..18591bf 100644
--- a/services/sensorservice/SensorService.h
+++ b/services/sensorservice/SensorService.h
@@ -77,13 +77,14 @@ class SensorService :
sp<SensorService> const mService;
sp<BitTube> const mChannel;
+ uid_t mUid;
mutable Mutex mConnectionLock;
// protected by SensorService::mLock
SortedVector<int> mSensorInfo;
public:
- SensorEventConnection(const sp<SensorService>& service);
+ SensorEventConnection(const sp<SensorService>& service, uid_t uid);
status_t sendEvents(sensors_event_t const* buffer, size_t count,
sensors_event_t* scratch = NULL);
@@ -91,6 +92,8 @@ class SensorService :
bool hasAnySensor() const;
bool addSensor(int32_t handle);
bool removeSensor(int32_t handle);
+
+ uid_t getUid() const { return mUid; }
};
class SensorRecord {