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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ipc/ipc_mojo_message_helper.h"
#include <utility>
#include "base/logging.h"
#include "ipc/ipc_mojo_handle_attachment.h"
namespace IPC {
// static
bool MojoMessageHelper::WriteMessagePipeTo(
base::Pickle* message,
mojo::ScopedMessagePipeHandle handle) {
message->WriteAttachment(new internal::MojoHandleAttachment(
mojo::ScopedHandle::From(std::move(handle))));
return true;
}
// static
bool MojoMessageHelper::ReadMessagePipeFrom(
const base::Pickle* message,
base::PickleIterator* iter,
mojo::ScopedMessagePipeHandle* handle) {
scoped_refptr<base::Pickle::Attachment> attachment;
if (!message->ReadAttachment(iter, &attachment)) {
LOG(ERROR) << "Failed to read attachment for message pipe.";
return false;
}
MessageAttachment::Type type =
static_cast<MessageAttachment*>(attachment.get())->GetType();
if (type != MessageAttachment::Type::MOJO_HANDLE) {
LOG(ERROR) << "Unxpected attachment type:" << static_cast<int>(type);
return false;
}
handle->reset(mojo::MessagePipeHandle(
static_cast<internal::MojoHandleAttachment*>(attachment.get())
->TakeHandle()
.release()
.value()));
return true;
}
MojoMessageHelper::MojoMessageHelper() = default;
} // namespace IPC
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