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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // This is a small utility that snarfs the server time from the | 5 // This is a small utility that snarfs the server time from the |
6 // response headers of an http/https HEAD request and compares it to | 6 // response headers of an http/https HEAD request and compares it to |
7 // the local time. | 7 // the local time. |
8 // | 8 // |
9 // TODO(akalin): Also snarf the server time from the TLS handshake, if | 9 // TODO(akalin): Also snarf the server time from the TLS handshake, if |
10 // any (http://crbug.com/146090). | 10 // any (http://crbug.com/146090). |
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137 // Builds a URLRequestContext assuming there's only a single loop. | 137 // Builds a URLRequestContext assuming there's only a single loop. |
138 scoped_ptr<net::URLRequestContext> | 138 scoped_ptr<net::URLRequestContext> |
139 BuildURLRequestContext(net::NetLog* net_log) { | 139 BuildURLRequestContext(net::NetLog* net_log) { |
140 net::URLRequestContextBuilder builder; | 140 net::URLRequestContextBuilder builder; |
141 #if defined(OS_LINUX) | 141 #if defined(OS_LINUX) |
142 // On Linux, use a fixed ProxyConfigService, since the default one | 142 // On Linux, use a fixed ProxyConfigService, since the default one |
143 // depends on glib. | 143 // depends on glib. |
144 // | 144 // |
145 // TODO(akalin): Remove this once http://crbug.com/146421 is fixed. | 145 // TODO(akalin): Remove this once http://crbug.com/146421 is fixed. |
146 builder.set_proxy_config_service( | 146 builder.set_proxy_config_service( |
147 new net::ProxyConfigServiceFixed(net::ProxyConfig())); | 147 make_scoped_ptr(new net::ProxyConfigServiceFixed(net::ProxyConfig()))); |
148 #endif | 148 #endif |
149 scoped_ptr<net::URLRequestContext> context(builder.Build()); | 149 scoped_ptr<net::URLRequestContext> context(builder.Build()); |
150 context->set_net_log(net_log); | 150 context->set_net_log(net_log); |
151 return context.Pass(); | 151 return context.Pass(); |
152 } | 152 } |
153 | 153 |
154 // Assuming that the time |server_time| was received from a server, | 154 // Assuming that the time |server_time| was received from a server, |
155 // that the request for the server was started on |start_ticks|, and | 155 // that the request for the server was started on |start_ticks|, and |
156 // that it ended on |end_ticks|, fills |server_now| with an estimate | 156 // that it ended on |end_ticks|, fills |server_now| with an estimate |
157 // of the current time and |server_now_uncertainty| with a | 157 // of the current time and |server_now_uncertainty| with a |
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317 &skew, &skew_uncertainty); | 317 &skew, &skew_uncertainty); |
318 | 318 |
319 std::printf( | 319 std::printf( |
320 "An estimate for the local clock skew is %.2f ms with " | 320 "An estimate for the local clock skew is %.2f ms with " |
321 "uncertainty %.2f ms\n", | 321 "uncertainty %.2f ms\n", |
322 skew.InMillisecondsF(), | 322 skew.InMillisecondsF(), |
323 skew_uncertainty.InMillisecondsF()); | 323 skew_uncertainty.InMillisecondsF()); |
324 | 324 |
325 return EXIT_SUCCESS; | 325 return EXIT_SUCCESS; |
326 } | 326 } |
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