41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
// Copyright 2014 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/android/jni_utils.h"
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#include "base/android/jni_string.h"
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#include "base/android/scoped_java_ref.h"
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#include "base/containers/flat_map.h"
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#include "base/no_destructor.h"
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#include "base/synchronization/lock.h"
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#include "base/base_jni_headers/JNIUtils_jni.h"
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namespace base {
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namespace android {
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jobject GetSplitClassLoader(JNIEnv* env, const char* split_name) {
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struct LockAndMap {
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base::Lock lock;
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base::flat_map<const char*, ScopedJavaGlobalRef<jobject>> map;
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};
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static base::NoDestructor<LockAndMap> lock_and_map;
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base::AutoLock guard(lock_and_map->lock);
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auto it = lock_and_map->map.find(split_name);
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if (it != lock_and_map->map.end()) {
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return it->second.obj();
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}
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ScopedJavaGlobalRef<jobject> class_loader(Java_JNIUtils_getSplitClassLoader(
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env, ConvertUTF8ToJavaString(env, split_name)));
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jobject class_loader_obj = class_loader.obj();
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lock_and_map->map.insert({split_name, std::move(class_loader)});
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return class_loader_obj;
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}
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} // namespace android
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} // namespace base
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