1 // Copyright 2014 The Chromium Authors
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/jni_utils.h"
7 #include "base/android/jni_string.h"
8 #include "base/android/scoped_java_ref.h"
9 #include "base/containers/flat_map.h"
10 #include "base/no_destructor.h"
11 #include "base/synchronization/lock.h"
13 #include "base/base_jni/JNIUtils_jni.h"
18 jobject GetSplitClassLoader(JNIEnv* env, const char* split_name) {
21 base::flat_map<const char*, ScopedJavaGlobalRef<jobject>> map;
23 static base::NoDestructor<LockAndMap> lock_and_map;
25 base::AutoLock guard(lock_and_map->lock);
26 auto it = lock_and_map->map.find(split_name);
27 if (it != lock_and_map->map.end()) {
28 return it->second.obj();
31 ScopedJavaGlobalRef<jobject> class_loader(Java_JNIUtils_getSplitClassLoader(
32 env, ConvertUTF8ToJavaString(env, split_name)));
33 jobject class_loader_obj = class_loader.obj();
34 lock_and_map->map.insert({split_name, std::move(class_loader)});
35 return class_loader_obj;
38 } // namespace android