1 files changed, 142 insertions, 0 deletions
diff --git a/services/jni/com_android_server_PowerManagerService.cpp b/services/jni/com_android_server_PowerManagerService.cpp
new file mode 100644
index 0000000..b80dbc5
--- /dev/null
+++ b/services/jni/com_android_server_PowerManagerService.cpp
@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#define LOG_TAG "PowerManagerService-JNI"
+
+//#define LOG_NDEBUG 0
+
+#include "JNIHelp.h"
+#include "jni.h"
+#include <limits.h>
+#include <android_runtime/AndroidRuntime.h>
+#include "com_android_server_PowerManagerService.h"
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+static struct {
+    jclass clazz;
+
+    jmethodID goToSleep;
+    jmethodID userActivity;
+} gPowerManagerServiceClassInfo;
+
+// ----------------------------------------------------------------------------
+
+static jobject gPowerManagerServiceObj;
+
+static Mutex gPowerManagerLock;
+static bool gScreenOn;
+static bool gScreenBright;
+
+// ----------------------------------------------------------------------------
+
+static bool checkAndClearExceptionFromCallback(JNIEnv* env, const char* methodName) {
+    if (env->ExceptionCheck()) {
+        LOGE("An exception was thrown by callback '%s'.", methodName);
+        LOGE_EX(env);
+        env->ExceptionClear();
+        return true;
+    }
+    return false;
+}
+
+bool android_server_PowerManagerService_isScreenOn() {
+    AutoMutex _l(gPowerManagerLock);
+    return gScreenOn;
+}
+
+bool android_server_PowerManagerService_isScreenBright() {
+    AutoMutex _l(gPowerManagerLock);
+    return gScreenBright;
+}
+
+void android_server_PowerManagerService_userActivity(nsecs_t eventTime, int32_t eventType) {
+    if (gPowerManagerServiceObj) {
+        JNIEnv* env = AndroidRuntime::getJNIEnv();
+
+        env->CallVoidMethod(gPowerManagerServiceObj, gPowerManagerServiceClassInfo.userActivity,
+                nanoseconds_to_milliseconds(eventTime), false, eventType, false);
+        checkAndClearExceptionFromCallback(env, "userActivity");
+    }
+}
+
+void android_server_PowerManagerService_goToSleep(nsecs_t eventTime) {
+    if (gPowerManagerServiceObj) {
+        JNIEnv* env = AndroidRuntime::getJNIEnv();
+
+        env->CallVoidMethod(gPowerManagerServiceObj, gPowerManagerServiceClassInfo.goToSleep,
+                nanoseconds_to_milliseconds(eventTime));
+        checkAndClearExceptionFromCallback(env, "goToSleep");
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+static void android_server_PowerManagerService_nativeInit(JNIEnv* env, jobject obj) {
+    gPowerManagerServiceObj = env->NewGlobalRef(obj);
+}
+
+static void android_server_PowerManagerService_nativeSetPowerState(JNIEnv* env,
+        jobject serviceObj, jboolean screenOn, jboolean screenBright) {
+    AutoMutex _l(gPowerManagerLock);
+    gScreenOn = screenOn;
+    gScreenBright = screenBright;
+}
+
+// ----------------------------------------------------------------------------
+
+static JNINativeMethod gPowerManagerServiceMethods[] = {
+    /* name, signature, funcPtr */
+    { "nativeInit", "()V",
+            (void*) android_server_PowerManagerService_nativeInit },
+    { "nativeSetPowerState", "(ZZ)V",
+            (void*) android_server_PowerManagerService_nativeSetPowerState },
+};
+
+#define FIND_CLASS(var, className) \
+        var = env->FindClass(className); \
+        LOG_FATAL_IF(! var, "Unable to find class " className); \
+        var = jclass(env->NewGlobalRef(var));
+
+#define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
+        var = env->GetMethodID(clazz, methodName, methodDescriptor); \
+        LOG_FATAL_IF(! var, "Unable to find method " methodName);
+
+#define GET_FIELD_ID(var, clazz, fieldName, fieldDescriptor) \
+        var = env->GetFieldID(clazz, fieldName, fieldDescriptor); \
+        LOG_FATAL_IF(! var, "Unable to find field " fieldName);
+
+int register_android_server_PowerManagerService(JNIEnv* env) {
+    int res = jniRegisterNativeMethods(env, "com/android/server/PowerManagerService",
+            gPowerManagerServiceMethods, NELEM(gPowerManagerServiceMethods));
+    LOG_FATAL_IF(res < 0, "Unable to register native methods.");
+
+    // Callbacks
+
+    FIND_CLASS(gPowerManagerServiceClassInfo.clazz, "com/android/server/PowerManagerService");
+
+    GET_METHOD_ID(gPowerManagerServiceClassInfo.goToSleep, gPowerManagerServiceClassInfo.clazz,
+            "goToSleep", "(J)V");
+
+    GET_METHOD_ID(gPowerManagerServiceClassInfo.userActivity, gPowerManagerServiceClassInfo.clazz,
+            "userActivity", "(JZIZ)V");
+
+    return 0;
+}
+
+} /* namespace android */