| /* |
| * Copyright (C) 2008 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. |
| */ |
| |
| |
| /* |
| * System clock functions. |
| */ |
| |
| #include <sys/time.h> |
| #include <limits.h> |
| #include <fcntl.h> |
| #include <errno.h> |
| #include <string.h> |
| |
| #include "JNIHelp.h" |
| #include "jni.h" |
| #include "core_jni_helpers.h" |
| |
| #include <sys/time.h> |
| #include <time.h> |
| |
| #include <utils/SystemClock.h> |
| |
| namespace android { |
| |
| /* |
| * native public static long uptimeMillis(); |
| */ |
| static jlong android_os_SystemClock_uptimeMillis(JNIEnv* env, |
| jobject clazz) |
| { |
| return (jlong)uptimeMillis(); |
| } |
| |
| /* |
| * native public static long elapsedRealtime(); |
| */ |
| static jlong android_os_SystemClock_elapsedRealtime(JNIEnv* env, |
| jobject clazz) |
| { |
| return (jlong)elapsedRealtime(); |
| } |
| |
| /* |
| * native public static long currentThreadTimeMillis(); |
| */ |
| static jlong android_os_SystemClock_currentThreadTimeMillis(JNIEnv* env, |
| jobject clazz) |
| { |
| struct timespec tm; |
| |
| clock_gettime(CLOCK_THREAD_CPUTIME_ID, &tm); |
| |
| return tm.tv_sec * 1000LL + tm.tv_nsec / 1000000; |
| } |
| |
| /* |
| * native public static long currentThreadTimeMicro(); |
| */ |
| static jlong android_os_SystemClock_currentThreadTimeMicro(JNIEnv* env, |
| jobject clazz) |
| { |
| struct timespec tm; |
| |
| clock_gettime(CLOCK_THREAD_CPUTIME_ID, &tm); |
| |
| return tm.tv_sec * 1000000LL + tm.tv_nsec / 1000; |
| } |
| |
| /* |
| * native public static long currentTimeMicro(); |
| */ |
| static jlong android_os_SystemClock_currentTimeMicro(JNIEnv* env, |
| jobject clazz) |
| { |
| struct timeval tv; |
| |
| gettimeofday(&tv, NULL); |
| return tv.tv_sec * 1000000LL + tv.tv_usec; |
| } |
| |
| /* |
| * public static native long elapsedRealtimeNano(); |
| */ |
| static jlong android_os_SystemClock_elapsedRealtimeNano(JNIEnv* env, |
| jobject clazz) |
| { |
| return (jlong)elapsedRealtimeNano(); |
| } |
| |
| /* |
| * JNI registration. |
| */ |
| static JNINativeMethod gMethods[] = { |
| /* name, signature, funcPtr */ |
| { "uptimeMillis", "()J", |
| (void*) android_os_SystemClock_uptimeMillis }, |
| { "elapsedRealtime", "()J", |
| (void*) android_os_SystemClock_elapsedRealtime }, |
| { "currentThreadTimeMillis", "()J", |
| (void*) android_os_SystemClock_currentThreadTimeMillis }, |
| { "currentThreadTimeMicro", "()J", |
| (void*) android_os_SystemClock_currentThreadTimeMicro }, |
| { "currentTimeMicro", "()J", |
| (void*) android_os_SystemClock_currentTimeMicro }, |
| { "elapsedRealtimeNanos", "()J", |
| (void*) android_os_SystemClock_elapsedRealtimeNano }, |
| }; |
| int register_android_os_SystemClock(JNIEnv* env) |
| { |
| return RegisterMethodsOrDie(env, "android/os/SystemClock", gMethods, NELEM(gMethods)); |
| } |
| |
| }; // namespace android |
| |