1 /*
2 * Copyright (C) 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 <nativehelper/JNIHelp.h>
19
20 #include "core_jni_helpers.h"
21 #include <unistd.h>
22
23 #include <bionic/malloc.h>
24 #include <android/graphics/renderthread.h>
25
26 namespace android {
27
android_app_ActivityThread_purgePendingResources(JNIEnv * env,jobject clazz)28 static void android_app_ActivityThread_purgePendingResources(JNIEnv* env, jobject clazz) {
29 // Don't care about return values.
30 mallopt(M_PURGE, 0);
31 }
32
33 static void
android_app_ActivityThread_dumpGraphics(JNIEnv * env,jobject clazz,jobject javaFileDescriptor)34 android_app_ActivityThread_dumpGraphics(JNIEnv* env, jobject clazz, jobject javaFileDescriptor) {
35 int fd = jniGetFDFromFileDescriptor(env, javaFileDescriptor);
36 ARenderThread_dumpGraphicsMemory(fd);
37 }
38
android_app_ActivityThread_initZygoteChildHeapProfiling(JNIEnv * env,jobject clazz)39 static void android_app_ActivityThread_initZygoteChildHeapProfiling(JNIEnv* env, jobject clazz) {
40 android_mallopt(M_INIT_ZYGOTE_CHILD_PROFILING, nullptr, 0);
41 }
42
43 static JNINativeMethod gActivityThreadMethods[] = {
44 // ------------ Regular JNI ------------------
45 { "nPurgePendingResources", "()V",
46 (void*) android_app_ActivityThread_purgePendingResources },
47 { "nDumpGraphicsInfo", "(Ljava/io/FileDescriptor;)V",
48 (void*) android_app_ActivityThread_dumpGraphics },
49 { "nInitZygoteChildHeapProfiling", "()V",
50 (void*) android_app_ActivityThread_initZygoteChildHeapProfiling }
51 };
52
register_android_app_ActivityThread(JNIEnv * env)53 int register_android_app_ActivityThread(JNIEnv* env) {
54 return RegisterMethodsOrDie(env, "android/app/ActivityThread",
55 gActivityThreadMethods, NELEM(gActivityThreadMethods));
56 }
57
58 };
59