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77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
// Copyright 2017 The Chromium Authors. All rights reserved.
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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_array.h"
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#include "base/android/jni_string.h"
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#include "base/android/library_loader/library_loader_hooks.h"
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#include "base/file_descriptor_store.h"
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#include "base/logging.h"
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#include "base/macros.h"
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#include "base/optional.h"
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#include "base/posix/global_descriptors.h"
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#include "jni/ChildProcessServiceImpl_jni.h"
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using base::android::JavaIntArrayToIntVector;
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using base::android::JavaParamRef;
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namespace base {
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namespace android {
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void RegisterFileDescriptors(JNIEnv* env,
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const JavaParamRef<jclass>& clazz,
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const JavaParamRef<jobjectArray>& j_keys,
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const JavaParamRef<jintArray>& j_ids,
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const JavaParamRef<jintArray>& j_fds,
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const JavaParamRef<jlongArray>& j_offsets,
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const JavaParamRef<jlongArray>& j_sizes) {
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std::vector<base::Optional<std::string>> keys;
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jsize keys_size = env->GetArrayLength(j_keys);
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keys.reserve(keys_size);
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for (jsize i = 0; i < keys_size; i++) {
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base::android::ScopedJavaLocalRef<jstring> str(
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env, static_cast<jstring>(env->GetObjectArrayElement(j_keys, i)));
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base::Optional<std::string> key;
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if (!str.is_null()) {
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key = base::android::ConvertJavaStringToUTF8(env, str);
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}
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keys.push_back(std::move(key));
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}
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std::vector<int> ids;
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base::android::JavaIntArrayToIntVector(env, j_ids, &ids);
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std::vector<int> fds;
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base::android::JavaIntArrayToIntVector(env, j_fds, &fds);
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std::vector<int64_t> offsets;
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base::android::JavaLongArrayToInt64Vector(env, j_offsets, &offsets);
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std::vector<int64_t> sizes;
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base::android::JavaLongArrayToInt64Vector(env, j_sizes, &sizes);
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DCHECK_EQ(keys.size(), ids.size());
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DCHECK_EQ(ids.size(), fds.size());
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DCHECK_EQ(fds.size(), offsets.size());
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DCHECK_EQ(offsets.size(), sizes.size());
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for (size_t i = 0; i < ids.size(); i++) {
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base::MemoryMappedFile::Region region = {offsets.at(i), sizes.at(i)};
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const base::Optional<std::string>& key = keys.at(i);
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int id = ids.at(i);
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int fd = fds.at(i);
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if (key) {
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base::FileDescriptorStore::GetInstance().Set(*key, base::ScopedFD(fd),
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region);
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} else {
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base::GlobalDescriptors::GetInstance()->Set(id, fd, region);
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}
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}
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}
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void ExitChildProcess(JNIEnv* env, const JavaParamRef<jclass>& clazz) {
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VLOG(0) << "ChildProcessServiceImpl: Exiting child process.";
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base::android::LibraryLoaderExitHook();
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_exit(0);
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}
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} // namespace android
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} // namespace base
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