1 /*
2 * Copyright 2018 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <jni.h>
18 #include <android/trace.h>
19
isEnabled(JNIEnv *,jclass)20 static jboolean isEnabled(JNIEnv*, jclass) {
21 return ATrace_isEnabled();
22 }
23
beginEndSection(JNIEnv *,jclass)24 static void beginEndSection(JNIEnv*, jclass) {
25 ATrace_beginSection("ndk::beginEndSection");
26 ATrace_endSection();
27 }
28
asyncBeginEndSection(JNIEnv *,jclass)29 static void asyncBeginEndSection(JNIEnv*, jclass) {
30 ATrace_beginAsyncSection("ndk::asyncBeginEndSection", 4770);
31 ATrace_endAsyncSection("ndk::asyncBeginEndSection", 4770);
32 }
33
34
counter(JNIEnv *,jclass)35 static void counter(JNIEnv*, jclass) {
36 ATrace_setCounter("ndk::counter", 10);
37 ATrace_setCounter("ndk::counter", 20);
38 ATrace_setCounter("ndk::counter", 30);
39 ATrace_setCounter("ndk::counter", 9223372000000005807L);
40 }
41
42 static JNINativeMethod gMethods[] = {
43 { "isEnabled", "()Z", (void*) isEnabled },
44 { "beginEndSection", "()V", (void*) beginEndSection },
45 { "asyncBeginEndSection", "()V", (void*) asyncBeginEndSection },
46 { "counter", "()V", (void*) counter },
47 };
48
JNI_OnLoad(JavaVM * vm,void *)49 jint JNI_OnLoad(JavaVM* vm, void* /*reserved*/) {
50 JNIEnv* env = nullptr;
51 if (vm->GetEnv((void**)&env, JNI_VERSION_1_4) != JNI_OK) {
52 return JNI_ERR;
53 }
54 jclass clazz = env->FindClass("com/android/cts/atracetestapp/AtraceNdkMethods");
55 env->RegisterNatives(clazz, gMethods, sizeof(gMethods) / sizeof(JNINativeMethod));
56 return JNI_VERSION_1_4;
57 }
58