1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "base/android/scoped_java_ref.h"
7 #include "base/android/jni_android.h"
8 #include "base/logging.h"
14 const int kDefaultLocalFrameCapacity = 16;
18 ScopedJavaLocalFrame::ScopedJavaLocalFrame(JNIEnv* env) : env_(env) {
19 int failed = env_->PushLocalFrame(kDefaultLocalFrameCapacity);
23 ScopedJavaLocalFrame::ScopedJavaLocalFrame(JNIEnv* env, int capacity)
25 int failed = env_->PushLocalFrame(capacity);
29 ScopedJavaLocalFrame::~ScopedJavaLocalFrame() { env_->PopLocalFrame(NULL); }
31 JavaRef<jobject>::JavaRef() : obj_(NULL) {}
33 JavaRef<jobject>::JavaRef(JNIEnv* env, jobject obj) : obj_(obj) {
35 DCHECK(env && env->GetObjectRefType(obj) == JNILocalRefType);
39 JavaRef<jobject>::~JavaRef() {
42 JNIEnv* JavaRef<jobject>::SetNewLocalRef(JNIEnv* env, jobject obj) {
44 env = AttachCurrentThread();
46 DCHECK_EQ(env, AttachCurrentThread()); // Is |env| on correct thread.
49 obj = env->NewLocalRef(obj);
51 env->DeleteLocalRef(obj_);
56 void JavaRef<jobject>::SetNewGlobalRef(JNIEnv* env, jobject obj) {
58 env = AttachCurrentThread();
60 DCHECK_EQ(env, AttachCurrentThread()); // Is |env| on correct thread.
63 obj = env->NewGlobalRef(obj);
65 env->DeleteGlobalRef(obj_);
69 void JavaRef<jobject>::ResetLocalRef(JNIEnv* env) {
71 DCHECK_EQ(env, AttachCurrentThread()); // Is |env| on correct thread.
72 env->DeleteLocalRef(obj_);
77 void JavaRef<jobject>::ResetGlobalRef() {
79 AttachCurrentThread()->DeleteGlobalRef(obj_);
84 jobject JavaRef<jobject>::ReleaseInternal() {
90 } // namespace android