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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 "net/proxy/multi_threaded_proxy_resolver.h" | 5 #include "net/proxy/multi_threaded_proxy_resolver.h" |
| 6 | 6 |
| 7 #include <deque> | 7 #include <deque> |
| 8 #include <vector> | 8 #include <vector> |
| 9 | 9 |
| 10 #include "base/bind.h" | 10 #include "base/bind.h" |
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| 112 ~MultiThreadedProxyResolver() override; | 112 ~MultiThreadedProxyResolver() override; |
| 113 | 113 |
| 114 // ProxyResolver implementation: | 114 // ProxyResolver implementation: |
| 115 int GetProxyForURL(const GURL& url, | 115 int GetProxyForURL(const GURL& url, |
| 116 ProxyInfo* results, | 116 ProxyInfo* results, |
| 117 const CompletionCallback& callback, | 117 const CompletionCallback& callback, |
| 118 RequestHandle* request, | 118 RequestHandle* request, |
| 119 const BoundNetLog& net_log) override; | 119 const BoundNetLog& net_log) override; |
| 120 void CancelRequest(RequestHandle request) override; | 120 void CancelRequest(RequestHandle request) override; |
| 121 LoadState GetLoadState(RequestHandle request) const override; | 121 LoadState GetLoadState(RequestHandle request) const override; |
| 122 void CancelSetPacScript() override; | |
| 123 int SetPacScript(const scoped_refptr<ProxyResolverScriptData>& script_data, | |
| 124 const CompletionCallback& callback) override; | |
| 125 | 122 |
| 126 private: | 123 private: |
| 127 class GetProxyForURLJob; | 124 class GetProxyForURLJob; |
| 128 // FIFO queue of pending jobs waiting to be started. | 125 // FIFO queue of pending jobs waiting to be started. |
| 129 // TODO(eroman): Make this priority queue. | 126 // TODO(eroman): Make this priority queue. |
| 130 typedef std::deque<scoped_refptr<Job>> PendingJobsQueue; | 127 typedef std::deque<scoped_refptr<Job>> PendingJobsQueue; |
| 131 typedef std::vector<scoped_refptr<Executor>> ExecutorList; | 128 typedef std::vector<scoped_refptr<Executor>> ExecutorList; |
| 132 | 129 |
| 133 // Returns an idle worker thread which is ready to receive GetProxyForURL() | 130 // Returns an idle worker thread which is ready to receive GetProxyForURL() |
| 134 // requests. If all threads are occupied, returns NULL. | 131 // requests. If all threads are occupied, returns NULL. |
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| 417 DCHECK(!outstanding_job_.get()); | 414 DCHECK(!outstanding_job_.get()); |
| 418 } | 415 } |
| 419 | 416 |
| 420 // MultiThreadedProxyResolver -------------------------------------------------- | 417 // MultiThreadedProxyResolver -------------------------------------------------- |
| 421 | 418 |
| 422 MultiThreadedProxyResolver::MultiThreadedProxyResolver( | 419 MultiThreadedProxyResolver::MultiThreadedProxyResolver( |
| 423 scoped_ptr<ProxyResolverFactory> resolver_factory, | 420 scoped_ptr<ProxyResolverFactory> resolver_factory, |
| 424 size_t max_num_threads, | 421 size_t max_num_threads, |
| 425 const scoped_refptr<ProxyResolverScriptData>& script_data, | 422 const scoped_refptr<ProxyResolverScriptData>& script_data, |
| 426 scoped_refptr<Executor> executor) | 423 scoped_refptr<Executor> executor) |
| 427 : ProxyResolver(resolver_factory->expects_pac_bytes()), | 424 : resolver_factory_(resolver_factory.Pass()), |
| 428 resolver_factory_(resolver_factory.Pass()), | |
| 429 max_num_threads_(max_num_threads), | 425 max_num_threads_(max_num_threads), |
| 430 script_data_(script_data) { | 426 script_data_(script_data) { |
| 431 DCHECK(script_data_); | 427 DCHECK(script_data_); |
| 432 executor->set_coordinator(this); | 428 executor->set_coordinator(this); |
| 433 executors_.push_back(executor); | 429 executors_.push_back(executor); |
| 434 } | 430 } |
| 435 | 431 |
| 436 MultiThreadedProxyResolver::~MultiThreadedProxyResolver() { | 432 MultiThreadedProxyResolver::~MultiThreadedProxyResolver() { |
| 437 DCHECK(CalledOnValidThread()); | 433 DCHECK(CalledOnValidThread()); |
| 438 // We will cancel all outstanding requests. | 434 // We will cancel all outstanding requests. |
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| 497 pending_jobs_.erase(it); | 493 pending_jobs_.erase(it); |
| 498 } | 494 } |
| 499 } | 495 } |
| 500 | 496 |
| 501 LoadState MultiThreadedProxyResolver::GetLoadState(RequestHandle req) const { | 497 LoadState MultiThreadedProxyResolver::GetLoadState(RequestHandle req) const { |
| 502 DCHECK(CalledOnValidThread()); | 498 DCHECK(CalledOnValidThread()); |
| 503 DCHECK(req); | 499 DCHECK(req); |
| 504 return LOAD_STATE_RESOLVING_PROXY_FOR_URL; | 500 return LOAD_STATE_RESOLVING_PROXY_FOR_URL; |
| 505 } | 501 } |
| 506 | 502 |
| 507 void MultiThreadedProxyResolver::CancelSetPacScript() { | |
| 508 NOTREACHED(); | |
| 509 } | |
| 510 | |
| 511 int MultiThreadedProxyResolver::SetPacScript( | |
| 512 const scoped_refptr<ProxyResolverScriptData>& script_data, | |
| 513 const CompletionCallback&callback) { | |
| 514 NOTREACHED(); | |
| 515 return ERR_NOT_IMPLEMENTED; | |
| 516 } | |
| 517 | |
| 518 Executor* MultiThreadedProxyResolver::FindIdleExecutor() { | 503 Executor* MultiThreadedProxyResolver::FindIdleExecutor() { |
| 519 DCHECK(CalledOnValidThread()); | 504 DCHECK(CalledOnValidThread()); |
| 520 for (ExecutorList::iterator it = executors_.begin(); | 505 for (ExecutorList::iterator it = executors_.begin(); |
| 521 it != executors_.end(); ++it) { | 506 it != executors_.end(); ++it) { |
| 522 Executor* executor = it->get(); | 507 Executor* executor = it->get(); |
| 523 if (!executor->outstanding_job()) | 508 if (!executor->outstanding_job()) |
| 524 return executor; | 509 return executor; |
| 525 } | 510 } |
| 526 return NULL; | 511 return NULL; |
| 527 } | 512 } |
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| 637 return ERR_IO_PENDING; | 622 return ERR_IO_PENDING; |
| 638 } | 623 } |
| 639 | 624 |
| 640 void MultiThreadedProxyResolverFactory::RemoveJob( | 625 void MultiThreadedProxyResolverFactory::RemoveJob( |
| 641 MultiThreadedProxyResolverFactory::Job* job) { | 626 MultiThreadedProxyResolverFactory::Job* job) { |
| 642 size_t erased = jobs_.erase(job); | 627 size_t erased = jobs_.erase(job); |
| 643 DCHECK_EQ(1u, erased); | 628 DCHECK_EQ(1u, erased); |
| 644 } | 629 } |
| 645 | 630 |
| 646 } // namespace net | 631 } // namespace net |
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