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// Copyright 2015 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 NET_DNS_MOJO_HOST_RESOLVER_IMPL_H_
#define NET_DNS_MOJO_HOST_RESOLVER_IMPL_H_
#include <set>
#include "base/macros.h"
#include "base/threading/thread_checker.h"
#include "net/interfaces/host_resolver_service.mojom.h"
namespace net {
class HostResolver;
// This is the implementation of the HostResolver Mojo interface.
// Inbound Mojo requests are sent to the HostResolver passed into the
// constructor. When destroyed, any outstanding resolver requests are cancelled.
// If a request's HostResolverRequestClient is shut down, the associated
// resolver request is cancelled.
class MojoHostResolverImpl : public interfaces::HostResolver {
public:
// |resolver| is expected to outlive |this|.
explicit MojoHostResolverImpl(net::HostResolver* resolver);
~MojoHostResolverImpl() override;
private:
class Job;
// Removes |job| from the set of pending jobs, and deletes it.
void DeleteJob(Job* job);
// Overridden from net::interfaces::HostResolver:
void Resolve(interfaces::HostResolverRequestInfoPtr request_info,
interfaces::HostResolverRequestClientPtr client) override;
// Resolver for resolving incoming requests. Not owned.
net::HostResolver* resolver_;
// All pending jobs, so they can be cancelled when this service is destroyed.
// Owns all jobs.
std::set<Job*> pending_jobs_;
base::ThreadChecker thread_checker_;
DISALLOW_COPY_AND_ASSIGN(MojoHostResolverImpl);
};
} // namespace net
#endif // NET_DNS_MOJO_HOST_RESOLVER_IMPL_H_
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