Repo created

TMessagesProj/jni/voip/webrtc/base/android/child_process_service.cc

@@ -0,0 +1,83 @@
+// 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/base_jni_headers/ChildProcessService_jni.h"
+#include "base/debug/dump_without_crashing.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"
+
+using base::android::JavaIntArrayToIntVector;
+using base::android::JavaParamRef;
+
+namespace base {
+namespace android {
+
+void JNI_ChildProcessService_RegisterFileDescriptors(
+    JNIEnv* env,
+    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;
+  JavaObjectArrayReader<jstring> keys_array(j_keys);
+  keys.reserve(keys_array.size());
+  for (auto str : keys_array) {
+    base::Optional<std::string> key;
+    if (str) {
+      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) {
+  VLOG(0) << "ChildProcessService: Exiting child process.";
+  base::android::LibraryLoaderExitHook();
+  _exit(0);
+}
+
+// Make sure this isn't inlined so it shows up in stack traces.
+// the function body unique by adding a log line, so it doesn't get merged
+// with other functions by link time optimizations (ICF).
+NOINLINE void JNI_ChildProcessService_DumpProcessStack(JNIEnv* env) {
+  LOG(ERROR) << "Dumping as requested.";
+  base::debug::DumpWithoutCrashing();
+}
+
+}  // namespace android
+}  // namespace base