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// Copyright 2014 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 "mojo/common/channel_init.h"
#include "base/bind.h"
#include "base/message_loop/message_loop.h"
#include "mojo/embedder/embedder.h"
namespace mojo {
namespace common {
ChannelInit::ChannelInit()
: channel_info_(NULL),
weak_factory_(this) {
}
ChannelInit::~ChannelInit() {
if (channel_info_) {
io_thread_task_runner_->PostTask(
FROM_HERE,
base::Bind(&mojo::embedder::DestroyChannelOnIOThread, channel_info_));
}
}
mojo::ScopedMessagePipeHandle ChannelInit::Init(
base::PlatformFile file,
scoped_refptr<base::TaskRunner> io_thread_task_runner) {
DCHECK(!io_thread_task_runner_.get()); // Should only init once.
io_thread_task_runner_ = io_thread_task_runner;
mojo::ScopedMessagePipeHandle message_pipe = mojo::embedder::CreateChannel(
mojo::embedder::ScopedPlatformHandle(
mojo::embedder::PlatformHandle(file)),
io_thread_task_runner,
base::Bind(&ChannelInit::OnCreatedChannel, weak_factory_.GetWeakPtr(),
io_thread_task_runner),
base::MessageLoop::current()->message_loop_proxy()).Pass();
return message_pipe.Pass();
}
// static
void ChannelInit::OnCreatedChannel(
base::WeakPtr<ChannelInit> host,
scoped_refptr<base::TaskRunner> io_thread,
embedder::ChannelInfo* channel) {
// By the time we get here |host| may have been destroyed. If so, shutdown the
// channel.
if (!host.get()) {
io_thread->PostTask(
FROM_HERE,
base::Bind(&mojo::embedder::DestroyChannelOnIOThread, channel));
return;
}
host->channel_info_ = channel;
}
} // namespace common
} // namespace mojo
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