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1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef NET_DNS_MOJO_HOST_RESOLVER_IMPL_H_ | |
6 #define NET_DNS_MOJO_HOST_RESOLVER_IMPL_H_ | |
7 | |
8 #include <set> | |
9 | |
10 #include "base/macros.h" | |
11 #include "base/threading/thread_checker.h" | |
12 #include "net/interfaces/host_resolver_service.mojom.h" | |
13 | |
14 namespace net { | |
15 | |
16 class HostResolver; | |
17 | |
18 // This is the implementation of the HostResolver Mojo interface. | |
19 // Inbound Mojo requests are sent to the HostResolver passed into the | |
20 // constructor. When destroyed, any outstanding resolver requests are cancelled. | |
21 // If a request's HostResolverRequestClient is shut down, the associated | |
22 // resolver request is cancelled. | |
23 class MojoHostResolverImpl : public interfaces::HostResolver { | |
24 public: | |
25 // |resolver| is expected to outlive |this|. | |
26 explicit MojoHostResolverImpl(net::HostResolver* resolver); | |
27 ~MojoHostResolverImpl() override; | |
28 | |
29 private: | |
30 class Job; | |
31 | |
32 // Removes |job| from the set of pending jobs, and deletes it. | |
33 void DeleteJob(Job* job); | |
34 | |
35 // Overridden from net::interfaces::HostResolver: | |
36 void Resolve(interfaces::HostResolverRequestInfoPtr request_info, | |
37 interfaces::HostResolverRequestClientPtr client) override; | |
38 | |
39 // Resolver for resolving incoming requests. Not owned. | |
40 net::HostResolver* resolver_; | |
41 | |
42 // All pending jobs, so they can be cancelled when this service is destroyed. | |
43 // Owns all jobs. | |
44 std::set<Job*> pending_jobs_; | |
45 | |
46 base::ThreadChecker thread_checker_; | |
47 | |
48 DISALLOW_COPY_AND_ASSIGN(MojoHostResolverImpl); | |
49 }; | |
50 | |
51 } // namespace net | |
52 | |
53 #endif // NET_DNS_MOJO_HOST_RESOLVER_IMPL_H_ | |
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