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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 SERVICES_NETWORK_MOJO_HOST_RESOLVER_IMPL_H_
- #define SERVICES_NETWORK_MOJO_HOST_RESOLVER_IMPL_H_
- #include <list>
- #include <memory>
- #include <string>
- #include "base/component_export.h"
- #include "base/memory/raw_ptr.h"
- #include "base/threading/thread_checker.h"
- #include "mojo/public/cpp/bindings/pending_remote.h"
- #include "net/log/net_log_with_source.h"
- #include "services/proxy_resolver/public/mojom/proxy_resolver.mojom.h"
- namespace net {
- class HostResolver;
- class NetworkIsolationKey;
- } // namespace net
- namespace network {
- // MojoHostResolverImpl handles mojo host resolution requests from the Proxy
- // Resolver Service. 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.
- //
- // TODO(mmenke): Rename this to something that makes it clearer that this is
- // just for use by the ProxyResolverFactoryMojo, or merge it into
- // ProxyResolverFactoryMojo.
- class COMPONENT_EXPORT(NETWORK_SERVICE) MojoHostResolverImpl {
- public:
- // |resolver| is expected to outlive |this|.
- MojoHostResolverImpl(net::HostResolver* resolver,
- const net::NetLogWithSource& net_log);
- MojoHostResolverImpl(const MojoHostResolverImpl&) = delete;
- MojoHostResolverImpl& operator=(const MojoHostResolverImpl&) = delete;
- ~MojoHostResolverImpl();
- void Resolve(
- const std::string& hostname,
- const net::NetworkIsolationKey& network_isolation_key,
- bool is_ex,
- mojo::PendingRemote<proxy_resolver::mojom::HostResolverRequestClient>
- client);
- bool request_in_progress() { return !pending_jobs_.empty(); }
- private:
- class Job;
- // Removes |job| from the set of pending jobs.
- void DeleteJob(std::list<Job>::iterator job);
- // Resolver for resolving incoming requests. Not owned.
- raw_ptr<net::HostResolver> resolver_;
- // The NetLogWithSource to be passed to |resolver_| for all requests.
- const net::NetLogWithSource net_log_;
- // All pending jobs, so they can be cancelled when this service is destroyed.
- std::list<Job> pending_jobs_;
- base::ThreadChecker thread_checker_;
- };
- } // namespace network
- #endif // SERVICES_NETWORK_MOJO_HOST_RESOLVER_IMPL_H_
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