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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_PEPPER_LOOKUP_REQUEST_H_
#define CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_LOOKUP_REQUEST_H_
#include "base/callback.h"
#include "base/memory/scoped_ptr.h"
#include "base/profiler/scoped_tracker.h"
#include "net/base/address_list.h"
#include "net/base/net_errors.h"
#include "net/dns/host_resolver.h"
#include "net/dns/single_request_host_resolver.h"
namespace content {
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,
net::RequestPriority priority,
T* bound_info,
const LookupRequestCallback& callback)
: resolver_(resolver),
request_info_(request_info),
priority_(priority),
bound_info_(bound_info),
callback_(callback) {}
void Start() {
int result =
resolver_.Resolve(request_info_,
priority_,
&addresses_,
base::Bind(&PepperLookupRequest<T>::OnLookupFinished,
base::Unretained(this)),
net::BoundNetLog());
if (result != net::ERR_IO_PENDING)
OnLookupFinished(result);
}
private:
void OnLookupFinished(int result) {
// TODO(vadimt): Remove ScopedTracker below once crbug.com/436634 is fixed.
tracked_objects::ScopedTracker tracking_profile(
FROM_HERE_WITH_EXPLICIT_FUNCTION(
"436634 PepperLookupRequest::OnLookupFinished"));
callback_.Run(result, addresses_, *bound_info_);
delete this;
}
net::SingleRequestHostResolver resolver_;
net::HostResolver::RequestInfo request_info_;
net::RequestPriority priority_;
scoped_ptr<T> bound_info_;
LookupRequestCallback callback_;
net::AddressList addresses_;
DISALLOW_COPY_AND_ASSIGN(PepperLookupRequest);
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_LOOKUP_REQUEST_H_
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