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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 #include "jingle/glue/pseudotcp_adapter.h" | 5 #include "jingle/glue/pseudotcp_adapter.h" |
| 6 | 6 |
| 7 #include <vector> | 7 #include <vector> |
| 8 | 8 |
| 9 #include "base/bind.h" | 9 #include "base/bind.h" |
| 10 #include "base/bind_helpers.h" | 10 #include "base/bind_helpers.h" |
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| 39 virtual bool DropNextPacket() = 0; | 39 virtual bool DropNextPacket() = 0; |
| 40 }; | 40 }; |
| 41 | 41 |
| 42 class LeakyBucket : public RateLimiter { | 42 class LeakyBucket : public RateLimiter { |
| 43 public: | 43 public: |
| 44 // |rate| is in drops per second. | 44 // |rate| is in drops per second. |
| 45 LeakyBucket(double volume, double rate) | 45 LeakyBucket(double volume, double rate) |
| 46 : volume_(volume), | 46 : volume_(volume), |
| 47 rate_(rate), | 47 rate_(rate), |
| 48 level_(0.0), | 48 level_(0.0), |
| 49 last_update_(base::TimeTicks::HighResNow()) { | 49 last_update_(base::TimeTicks::Now()) { |
| 50 } | 50 } |
| 51 | 51 |
| 52 ~LeakyBucket() override {} | 52 ~LeakyBucket() override {} |
| 53 | 53 |
| 54 bool DropNextPacket() override { | 54 bool DropNextPacket() override { |
| 55 base::TimeTicks now = base::TimeTicks::HighResNow(); | 55 base::TimeTicks now = base::TimeTicks::Now(); |
| 56 double interval = (now - last_update_).InSecondsF(); | 56 double interval = (now - last_update_).InSecondsF(); |
| 57 last_update_ = now; | 57 last_update_ = now; |
| 58 level_ = level_ + 1.0 - interval * rate_; | 58 level_ = level_ + 1.0 - interval * rate_; |
| 59 if (level_ > volume_) { | 59 if (level_ > volume_) { |
| 60 level_ = volume_; | 60 level_ = volume_; |
| 61 return true; | 61 return true; |
| 62 } else if (level_ < 0.0) { | 62 } else if (level_ < 0.0) { |
| 63 level_ = 0.0; | 63 level_ = 0.0; |
| 64 } | 64 } |
| 65 return false; | 65 return false; |
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| 435 client_pseudotcp_.get()); | 435 client_pseudotcp_.get()); |
| 436 | 436 |
| 437 tester->Start(); | 437 tester->Start(); |
| 438 message_loop_.Run(); | 438 message_loop_.Run(); |
| 439 tester->CheckResults(); | 439 tester->CheckResults(); |
| 440 } | 440 } |
| 441 | 441 |
| 442 } // namespace | 442 } // namespace |
| 443 | 443 |
| 444 } // namespace jingle_glue | 444 } // namespace jingle_glue |
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