1 files changed, 126 insertions, 0 deletions
diff --git a/services/thermalservice/ThermalService.cpp b/services/thermalservice/ThermalService.cpp
new file mode 100644
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+++ b/services/thermalservice/ThermalService.cpp
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+/*
+ * Copyright (C) 2017 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 "ThermalService.h"
+#include <android/os/IThermalService.h>
+#include <android/os/IThermalEventListener.h>
+#include <android/os/Temperature.h>
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+#include <utils/Errors.h>
+#include <utils/Mutex.h>
+#include <utils/String16.h>
+
+namespace android {
+namespace os {
+
+/**
+ * Notify registered listeners of a thermal throttling start/stop event.
+ * @param temperature the temperature at which the event was generated
+ */
+binder::Status ThermalService::notifyThrottling(
+    const bool isThrottling, const Temperature& temperature) {
+    Mutex::Autolock _l(mListenersLock);
+
+    mThrottled = isThrottling;
+    mThrottleTemperature = temperature;
+
+    for (size_t i = 0; i < mListeners.size(); i++) {
+      mListeners[i]->notifyThrottling(isThrottling, temperature);
+    }
+    return binder::Status::ok();
+}
+
+/**
+ * Query whether the system is currently thermal throttling.
+ * @return true if currently thermal throttling, else false
+ */
+binder::Status ThermalService::isThrottling(bool* _aidl_return) {
+    Mutex::Autolock _l(mListenersLock);
+    *_aidl_return = mThrottled;
+    return binder::Status::ok();
+}
+
+/**
+ * Register a new thermal event listener.
+ * @param listener the client's IThermalEventListener instance to which
+ *                 notifications are to be sent
+ */
+binder::Status ThermalService::registerThermalEventListener(
+    const sp<IThermalEventListener>& listener) {
+    {
+        if (listener == NULL)
+            return binder::Status::ok();
+        Mutex::Autolock _l(mListenersLock);
+        // check whether this is a duplicate
+        for (size_t i = 0; i < mListeners.size(); i++) {
+            if (IInterface::asBinder(mListeners[i]) ==
+                IInterface::asBinder(listener)) {
+                return binder::Status::ok();
+            }
+        }
+
+        mListeners.add(listener);
+        IInterface::asBinder(listener)->linkToDeath(this);
+    }
+
+    return binder::Status::ok();
+}
+
+/**
+ * Unregister a previously-registered thermal event listener.
+ * @param listener the client's IThermalEventListener instance to which
+ *                 notifications are to no longer be sent
+ */
+binder::Status ThermalService::unregisterThermalEventListener(
+    const sp<IThermalEventListener>& listener) {
+    if (listener == NULL)
+        return binder::Status::ok();
+    Mutex::Autolock _l(mListenersLock);
+    for (size_t i = 0; i < mListeners.size(); i++) {
+        if (IInterface::asBinder(mListeners[i]) ==
+            IInterface::asBinder(listener)) {
+            IInterface::asBinder(mListeners[i])->unlinkToDeath(this);
+            mListeners.removeAt(i);
+            break;
+        }
+    }
+
+    return binder::Status::ok();
+}
+
+void ThermalService::binderDied(const wp<IBinder>& who) {
+    Mutex::Autolock _l(mListenersLock);
+
+    for (size_t i = 0; i < mListeners.size(); i++) {
+        if (IInterface::asBinder(mListeners[i]) == who) {
+            mListeners.removeAt(i);
+            break;
+        }
+    }
+}
+
+/**
+ * Publish the supplied ThermalService to servicemanager.
+ */
+void ThermalService::publish(
+    const sp<ThermalService>& service) {
+    defaultServiceManager()->addService(String16("thermalservice"),
+                                        service);
+}
+
+}  // namespace os
+}  // namespace android