naiveproxy/base/android/child_process_service.cc
2018-08-14 22:19:20 +00:00

80 lines
2.6 KiB
C++

// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/android/jni_array.h"
#include "base/android/jni_string.h"
#include "base/android/library_loader/library_loader_hooks.h"
#include "base/file_descriptor_store.h"
#include "base/logging.h"
#include "base/macros.h"
#include "base/optional.h"
#include "base/posix/global_descriptors.h"
#include "jni/ChildProcessService_jni.h"
using base::android::JavaIntArrayToIntVector;
using base::android::JavaParamRef;
namespace base {
namespace android {
void JNI_ChildProcessService_RegisterFileDescriptors(
JNIEnv* env,
const JavaParamRef<jclass>& clazz,
const JavaParamRef<jobjectArray>& j_keys,
const JavaParamRef<jintArray>& j_ids,
const JavaParamRef<jintArray>& j_fds,
const JavaParamRef<jlongArray>& j_offsets,
const JavaParamRef<jlongArray>& j_sizes) {
std::vector<base::Optional<std::string>> keys;
jsize keys_size = env->GetArrayLength(j_keys);
keys.reserve(keys_size);
for (jsize i = 0; i < keys_size; i++) {
base::android::ScopedJavaLocalRef<jstring> str(
env, static_cast<jstring>(env->GetObjectArrayElement(j_keys, i)));
base::Optional<std::string> key;
if (!str.is_null()) {
key = base::android::ConvertJavaStringToUTF8(env, str);
}
keys.push_back(std::move(key));
}
std::vector<int> ids;
base::android::JavaIntArrayToIntVector(env, j_ids, &ids);
std::vector<int> fds;
base::android::JavaIntArrayToIntVector(env, j_fds, &fds);
std::vector<int64_t> offsets;
base::android::JavaLongArrayToInt64Vector(env, j_offsets, &offsets);
std::vector<int64_t> sizes;
base::android::JavaLongArrayToInt64Vector(env, j_sizes, &sizes);
DCHECK_EQ(keys.size(), ids.size());
DCHECK_EQ(ids.size(), fds.size());
DCHECK_EQ(fds.size(), offsets.size());
DCHECK_EQ(offsets.size(), sizes.size());
for (size_t i = 0; i < ids.size(); i++) {
base::MemoryMappedFile::Region region = {offsets.at(i), sizes.at(i)};
const base::Optional<std::string>& key = keys.at(i);
int id = ids.at(i);
int fd = fds.at(i);
if (key) {
base::FileDescriptorStore::GetInstance().Set(*key, base::ScopedFD(fd),
region);
} else {
base::GlobalDescriptors::GetInstance()->Set(id, fd, region);
}
}
}
void JNI_ChildProcessService_ExitChildProcess(
JNIEnv* env,
const JavaParamRef<jclass>& clazz) {
VLOG(0) << "ChildProcessService: Exiting child process.";
base::android::LibraryLoaderExitHook();
_exit(0);
}
} // namespace android
} // namespace base