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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"
#include "net/log/net_log.h"
namespace net {
class HostResolver;
// MojoHostResolverImpl handles mojo host resolution requests. 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:
// |resolver| is expected to outlive |this|.
MojoHostResolverImpl(net::HostResolver* resolver, const BoundNetLog& net_log);
~MojoHostResolverImpl();
void Resolve(interfaces::HostResolverRequestInfoPtr request_info,
interfaces::HostResolverRequestClientPtr client);
bool request_in_progress() { return !pending_jobs_.empty(); }
private:
class Job;
// Removes |job| from the set of pending jobs, and deletes it.
void DeleteJob(Job* job);
// Resolver for resolving incoming requests. Not owned.
net::HostResolver* resolver_;
// The BoundNetLog to be passed to |resolver_| for all requests.
const BoundNetLog net_log_;
// 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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