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| 1 /* | 1 /* |
| 2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. | 2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
| 5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
| 6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ | 9 */ |
| 10 | 10 |
| 11 #include "webrtc/p2p/base/stunrequest.h" | 11 #include "webrtc/p2p/base/stunrequest.h" |
| 12 | 12 |
| 13 #include <algorithm> | 13 #include <algorithm> |
| 14 #include <memory> | 14 #include <memory> |
| 15 | 15 |
| 16 #include "webrtc/base/checks.h" | 16 #include "webrtc/rtc_base/checks.h" |
| 17 #include "webrtc/base/helpers.h" | 17 #include "webrtc/rtc_base/helpers.h" |
| 18 #include "webrtc/base/logging.h" | 18 #include "webrtc/rtc_base/logging.h" |
| 19 #include "webrtc/base/ptr_util.h" | 19 #include "webrtc/rtc_base/ptr_util.h" |
| 20 #include "webrtc/base/stringencode.h" | 20 #include "webrtc/rtc_base/stringencode.h" |
| 21 | 21 |
| 22 namespace cricket { | 22 namespace cricket { |
| 23 | 23 |
| 24 const uint32_t MSG_STUN_SEND = 1; | 24 const uint32_t MSG_STUN_SEND = 1; |
| 25 | 25 |
| 26 // RFC 5389 says SHOULD be 500ms. | 26 // RFC 5389 says SHOULD be 500ms. |
| 27 // For years, this was 100ms, but for networks that | 27 // For years, this was 100ms, but for networks that |
| 28 // experience moments of high RTT (such as 2G networks), this doesn't | 28 // experience moments of high RTT (such as 2G networks), this doesn't |
| 29 // work well. | 29 // work well. |
| 30 const int STUN_INITIAL_RTO = 250; // milliseconds | 30 const int STUN_INITIAL_RTO = 250; // milliseconds |
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| 251 int StunRequest::resend_delay() { | 251 int StunRequest::resend_delay() { |
| 252 if (count_ == 0) { | 252 if (count_ == 0) { |
| 253 return 0; | 253 return 0; |
| 254 } | 254 } |
| 255 int retransmissions = (count_ - 1); | 255 int retransmissions = (count_ - 1); |
| 256 int rto = STUN_INITIAL_RTO << retransmissions; | 256 int rto = STUN_INITIAL_RTO << retransmissions; |
| 257 return std::min(rto, STUN_MAX_RTO); | 257 return std::min(rto, STUN_MAX_RTO); |
| 258 } | 258 } |
| 259 | 259 |
| 260 } // namespace cricket | 260 } // namespace cricket |
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