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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "net/http/http_response_body_drainer.h" | |
| 6 | |
| 7 #include "base/compiler_specific.h" | |
| 8 #include "base/logging.h" | |
| 9 #include "net/base/io_buffer.h" | |
| 10 #include "net/base/net_errors.h" | |
| 11 #include "net/http/http_network_session.h" | |
| 12 #include "net/http/http_stream.h" | |
| 13 | |
| 14 namespace net { | |
| 15 | |
| 16 HttpResponseBodyDrainer::HttpResponseBodyDrainer(HttpStream* stream) | |
| 17 : stream_(stream), | |
| 18 next_state_(STATE_NONE), | |
| 19 total_read_(0), | |
| 20 session_(NULL) {} | |
| 21 | |
| 22 HttpResponseBodyDrainer::~HttpResponseBodyDrainer() {} | |
| 23 | |
| 24 void HttpResponseBodyDrainer::Start(HttpNetworkSession* session) { | |
| 25 read_buf_ = new IOBuffer(kDrainBodyBufferSize); | |
| 26 next_state_ = STATE_DRAIN_RESPONSE_BODY; | |
| 27 int rv = DoLoop(OK); | |
| 28 | |
| 29 if (rv == ERR_IO_PENDING) { | |
| 30 timer_.Start(FROM_HERE, | |
| 31 base::TimeDelta::FromSeconds(kTimeoutInSeconds), | |
| 32 this, | |
| 33 &HttpResponseBodyDrainer::OnTimerFired); | |
| 34 session_ = session; | |
| 35 session->AddResponseDrainer(this); | |
| 36 return; | |
| 37 } | |
| 38 | |
| 39 Finish(rv); | |
| 40 } | |
| 41 | |
| 42 int HttpResponseBodyDrainer::DoLoop(int result) { | |
| 43 DCHECK_NE(next_state_, STATE_NONE); | |
| 44 | |
| 45 int rv = result; | |
| 46 do { | |
| 47 State state = next_state_; | |
| 48 next_state_ = STATE_NONE; | |
| 49 switch (state) { | |
| 50 case STATE_DRAIN_RESPONSE_BODY: | |
| 51 DCHECK_EQ(OK, rv); | |
| 52 rv = DoDrainResponseBody(); | |
| 53 break; | |
| 54 case STATE_DRAIN_RESPONSE_BODY_COMPLETE: | |
| 55 rv = DoDrainResponseBodyComplete(rv); | |
| 56 break; | |
| 57 default: | |
| 58 NOTREACHED() << "bad state"; | |
| 59 rv = ERR_UNEXPECTED; | |
| 60 break; | |
| 61 } | |
| 62 } while (rv != ERR_IO_PENDING && next_state_ != STATE_NONE); | |
| 63 | |
| 64 return rv; | |
| 65 } | |
| 66 | |
| 67 int HttpResponseBodyDrainer::DoDrainResponseBody() { | |
| 68 next_state_ = STATE_DRAIN_RESPONSE_BODY_COMPLETE; | |
| 69 | |
| 70 return stream_->ReadResponseBody( | |
| 71 read_buf_.get(), | |
| 72 kDrainBodyBufferSize - total_read_, | |
| 73 base::Bind(&HttpResponseBodyDrainer::OnIOComplete, | |
| 74 base::Unretained(this))); | |
| 75 } | |
| 76 | |
| 77 int HttpResponseBodyDrainer::DoDrainResponseBodyComplete(int result) { | |
| 78 DCHECK_NE(ERR_IO_PENDING, result); | |
| 79 | |
| 80 if (result < 0) | |
| 81 return result; | |
| 82 | |
| 83 total_read_ += result; | |
| 84 if (stream_->IsResponseBodyComplete()) | |
| 85 return OK; | |
| 86 | |
| 87 DCHECK_LE(total_read_, kDrainBodyBufferSize); | |
| 88 if (total_read_ >= kDrainBodyBufferSize) | |
| 89 return ERR_RESPONSE_BODY_TOO_BIG_TO_DRAIN; | |
| 90 | |
| 91 if (result == 0) | |
| 92 return ERR_CONNECTION_CLOSED; | |
| 93 | |
| 94 next_state_ = STATE_DRAIN_RESPONSE_BODY; | |
| 95 return OK; | |
| 96 } | |
| 97 | |
| 98 void HttpResponseBodyDrainer::OnIOComplete(int result) { | |
| 99 int rv = DoLoop(result); | |
| 100 if (rv != ERR_IO_PENDING) { | |
| 101 timer_.Stop(); | |
| 102 Finish(rv); | |
| 103 } | |
| 104 } | |
| 105 | |
| 106 void HttpResponseBodyDrainer::OnTimerFired() { | |
| 107 Finish(ERR_TIMED_OUT); | |
| 108 } | |
| 109 | |
| 110 void HttpResponseBodyDrainer::Finish(int result) { | |
| 111 DCHECK_NE(ERR_IO_PENDING, result); | |
| 112 | |
| 113 if (session_) | |
| 114 session_->RemoveResponseDrainer(this); | |
| 115 | |
| 116 if (result < 0) { | |
| 117 stream_->Close(true /* no keep-alive */); | |
| 118 } else { | |
| 119 DCHECK_EQ(OK, result); | |
| 120 stream_->Close(false /* keep-alive */); | |
| 121 } | |
| 122 | |
| 123 delete this; | |
| 124 } | |
| 125 | |
| 126 } // namespace net | |
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Chromium Code Reviews
Issue 992733002:
Remove //net (except for Android test stuff) and sdch (Closed)
Base URL: git@github.com:domokit/mojo.git@master