mirror of
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82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
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// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef NET_DNS_HOST_RESOLVER_MOJO_H_
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#define NET_DNS_HOST_RESOLVER_MOJO_H_
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#include <memory>
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#include "base/macros.h"
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#include "base/memory/weak_ptr.h"
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#include "base/threading/thread_checker.h"
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#include "net/base/completion_once_callback.h"
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#include "net/dns/host_cache.h"
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#include "net/dns/host_resolver.h"
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#include "net/interfaces/host_resolver_service.mojom.h"
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namespace net {
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class AddressList;
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class NetLogWithSource;
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// A HostResolver implementation that converts requests to mojo types and
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// forwards them to a mojo Impl interface.
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class HostResolverMojo : public HostResolver {
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public:
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class Impl {
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public:
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virtual ~Impl() = default;
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virtual void ResolveDns(
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std::unique_ptr<HostResolver::RequestInfo> request_info,
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interfaces::HostResolverRequestClientPtr) = 0;
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};
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// |impl| must outlive |this|.
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explicit HostResolverMojo(Impl* impl);
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~HostResolverMojo() override;
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// HostResolver overrides.
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std::unique_ptr<ResolveHostRequest> CreateRequest(
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const HostPortPair& host,
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const NetLogWithSource& net_log) override;
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// Note: |Resolve()| currently ignores |priority|.
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int Resolve(const RequestInfo& info,
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RequestPriority priority,
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AddressList* addresses,
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CompletionOnceCallback callback,
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std::unique_ptr<Request>* request,
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const NetLogWithSource& source_net_log) override;
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int ResolveFromCache(const RequestInfo& info,
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AddressList* addresses,
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const NetLogWithSource& source_net_log) override;
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int ResolveStaleFromCache(const RequestInfo& info,
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AddressList* addresses,
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HostCache::EntryStaleness* stale_info,
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const NetLogWithSource& source_net_log) override;
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HostCache* GetHostCache() override;
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bool HasCached(base::StringPiece hostname,
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HostCache::Entry::Source* source_out,
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HostCache::EntryStaleness* stale_out) const override;
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private:
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class Job;
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class RequestImpl;
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int ResolveFromCacheInternal(const RequestInfo& info,
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const HostCache::Key& key,
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AddressList* addresses);
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Impl* const impl_;
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std::unique_ptr<HostCache> host_cache_;
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base::WeakPtrFactory<HostCache> host_cache_weak_factory_;
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base::ThreadChecker thread_checker_;
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DISALLOW_COPY_AND_ASSIGN(HostResolverMojo);
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};
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} // namespace net
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#endif // NET_DNS_HOST_RESOLVER_MOJO_H_
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