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// Copyright (c) 2012 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.
#ifndef CONTENT_BROWSER_RENDERER_HOST_PEPPER_LOOKUP_REQUEST_H_
#define CONTENT_BROWSER_RENDERER_HOST_PEPPER_LOOKUP_REQUEST_H_
#pragma once
#include "base/callback.h"
#include "base/memory/scoped_ptr.h"
#include "net/base/address_list.h"
#include "net/base/host_resolver.h"
#include "net/base/net_errors.h"
#include "net/base/single_request_host_resolver.h"
template<class T>
class PepperLookupRequest {
public:
typedef base::Callback<void(int, const net::AddressList&, const T&)>
LookupRequestCallback;
// Takes ownership over |bound_info|. |bound_info| will be passed to
// callback, when lookup will finish.
PepperLookupRequest(net::HostResolver* resolver,
const net::HostResolver::RequestInfo& request_info,
T* bound_info,
const LookupRequestCallback& callback)
: resolver_(resolver),
request_info_(request_info),
bound_info_(bound_info),
callback_(callback) {
}
void Start() {
int result = resolver_.Resolve(
request_info_, &addresses_,
base::Bind(&PepperLookupRequest<T>::OnLookupFinished,
base::Unretained(this)),
net::BoundNetLog());
if (result != net::ERR_IO_PENDING)
OnLookupFinished(result);
}
private:
void OnLookupFinished(int result) {
callback_.Run(result, addresses_, *bound_info_);
delete this;
}
net::SingleRequestHostResolver resolver_;
net::HostResolver::RequestInfo request_info_;
scoped_ptr<T> bound_info_;
LookupRequestCallback callback_;
net::AddressList addresses_;
DISALLOW_COPY_AND_ASSIGN(PepperLookupRequest);
};
#endif // CONTENT_BROWSER_RENDERER_HOST_PEPPER_LOOKUP_REQUEST_H_
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