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1 // Copyright 2016 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 HEADLESS_PUBLIC_UTIL_DETERMINISTIC_HTTP_PROTOCOL_HANDLER_H_ | |
6 #define HEADLESS_PUBLIC_UTIL_DETERMINISTIC_HTTP_PROTOCOL_HANDLER_H_ | |
7 | |
8 #include <memory> | |
9 | |
10 #include "base/single_thread_task_runner.h" | |
11 #include "net/url_request/url_request_job_factory.h" | |
12 | |
13 namespace net { | |
14 class URLRequestContext; | |
15 class URLRequestJobFactory; | |
16 } // namespace | |
17 | |
18 namespace headless { | |
19 class DeterministicDispatcher; | |
20 class HeadlessBrowserContext; | |
21 | |
22 // A deterministic protocol handler. Requests make to this protocol handler | |
Sami
2016/09/23 14:27:29
s/make/made/
alex clarke (OOO till 29th)
2016/09/23 16:40:26
Done.
| |
23 // will return in order of creation, regardless of what order the network | |
24 // returns them in. This helps remove one large source of network related | |
25 // non determinism at the cost of slower page loads. | |
26 class DeterministicHttpProtocolHandler | |
27 : public net::URLRequestJobFactory::ProtocolHandler { | |
28 public: | |
29 // Note |deterministic_dispatcher| is expected to be shared across a number of | |
30 // protocol handlers, e.g. for http & https protocols. | |
31 DeterministicHttpProtocolHandler( | |
32 DeterministicDispatcher* deterministic_dispatcher, | |
33 scoped_refptr<base::SingleThreadTaskRunner> io_task_runner); | |
34 ~DeterministicHttpProtocolHandler() override; | |
35 | |
36 net::URLRequestJob* MaybeCreateJob( | |
37 net::URLRequest* request, | |
38 net::NetworkDelegate* network_delegate) const override; | |
39 | |
40 private: | |
41 class NopGenericURLRequestJobDelegate; | |
42 | |
43 DeterministicDispatcher* deterministic_dispatcher_; // NOT OWNED. | |
44 scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_; | |
45 std::unique_ptr<NopGenericURLRequestJobDelegate> nop_delagate_; | |
46 | |
47 // |url_request_context_| and |url_request_job_factory_| are lazily created on | |
48 // the IO thread. The URLRequestContextis setup to bypassing any | |
Sami
2016/09/23 14:27:29
s/Contextis/Context is/
alex clarke (OOO till 29th)
2016/09/23 16:40:26
Done.
| |
49 // user-specified protocol handlers including this one. This is necessary to | |
50 // actually fetch http resources. | |
51 mutable std::unique_ptr<net::URLRequestContext> url_request_context_; | |
52 mutable std::unique_ptr<net::URLRequestJobFactory> url_request_job_factory_; | |
53 | |
54 DISALLOW_COPY_AND_ASSIGN(DeterministicHttpProtocolHandler); | |
55 }; | |
56 | |
57 } // namespace headless | |
58 | |
59 #endif // HEADLESS_PUBLIC_UTIL_DETERMINISTIC_HTTP_PROTOCOL_HANDLER_H_ | |
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