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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 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 // Represents the browser side of the browser <--> renderer communication | 5 // Represents the browser side of the browser <--> renderer communication |
6 // channel. There will be one RenderProcessHost per renderer process. | 6 // channel. There will be one RenderProcessHost per renderer process. |
7 | 7 |
8 #include "content/browser/renderer_host/render_process_host_impl.h" | 8 #include "content/browser/renderer_host/render_process_host_impl.h" |
9 | 9 |
10 #include <algorithm> | 10 #include <algorithm> |
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622 delete this; | 622 delete this; |
623 } | 623 } |
624 | 624 |
625 RenderProcessHost* render_process_host_; | 625 RenderProcessHost* render_process_host_; |
626 base::OnceClosure task_; | 626 base::OnceClosure task_; |
627 base::WeakPtrFactory<RenderProcessHostIsReadyObserver> weak_factory_; | 627 base::WeakPtrFactory<RenderProcessHostIsReadyObserver> weak_factory_; |
628 | 628 |
629 DISALLOW_COPY_AND_ASSIGN(RenderProcessHostIsReadyObserver); | 629 DISALLOW_COPY_AND_ASSIGN(RenderProcessHostIsReadyObserver); |
630 }; | 630 }; |
631 | 631 |
632 // The following object is used to keep track of which sites | |
Charlie Reis
2017/05/23 07:29:13
nit: s/object/class/
nit: used to track the sites
clamy
2017/05/23 13:41:15
Done.
| |
633 // RenderProcessHosts are hosting frames and expecting navigations to. | |
634 // There are two of them per BrowserContext, one for frames and one for | |
Charlie Reis
2017/05/23 07:29:13
nit: Colon rather than comma (to make it seem more
clamy
2017/05/23 13:41:15
Done.
| |
635 // navigations. | |
Charlie Reis
2017/05/23 07:29:13
Can you elaborate a bit further here, explaining h
clamy
2017/05/23 13:41:15
Done.
| |
636 const void* const kCommittedSiteCountPerProcessTrackerKey = | |
637 "CommittedSiteCountPerProcessTrackerKey"; | |
638 const void* const kPendingSiteCountPerProcessTrackerKey = | |
639 "PendingSiteCountPerProcessTrackerKey"; | |
640 class SiteCountPerProcessTracker : public base::SupportsUserData::Data { | |
Charlie Reis
2017/05/23 07:29:13
nit: Maybe SiteProcessCountTracker (now that we've
clamy
2017/05/23 13:41:15
Done.
| |
641 public: | |
642 SiteCountPerProcessTracker() {} | |
643 ~SiteCountPerProcessTracker() override {} | |
644 | |
645 void AddCountForSiteForProcess(int render_process_host_id, | |
Charlie Reis
2017/05/23 07:29:13
nit: IncrementSiteProcessCount
nit: Swap parameter
clamy
2017/05/23 13:41:15
Done.
| |
646 const GURL& site_url) { | |
647 std::map<ProcessID, Count>& counts_per_process = map_[site_url]; | |
648 ++counts_per_process[render_process_host_id]; | |
649 } | |
650 | |
651 void RemoveCountForSiteForProcess(int render_process_host_id, | |
Charlie Reis
2017/05/23 07:29:13
nit: DecrementSiteProcessCount and swap parameter
clamy
2017/05/23 13:41:15
Done.
| |
652 const GURL& site_url) { | |
653 auto result = map_.find(site_url); | |
654 DCHECK(result != map_.end()); | |
655 std::map<ProcessID, Count>& counts_per_process = result->second; | |
656 | |
657 --counts_per_process[render_process_host_id]; | |
658 DCHECK(counts_per_process[render_process_host_id] >= 0); | |
659 | |
660 if (counts_per_process[render_process_host_id] == 0) | |
661 counts_per_process.erase(render_process_host_id); | |
662 | |
663 if (counts_per_process.empty()) | |
664 map_.erase(site_url); | |
665 } | |
666 | |
667 void FindRenderProcessesForSite( | |
668 const GURL& site_url, | |
669 std::set<RenderProcessHost*>* foreground_processes, | |
670 std::set<RenderProcessHost*>* background_processes) { | |
671 auto result = map_.find(site_url); | |
672 if (result == map_.end()) | |
673 return; | |
674 | |
675 std::map<ProcessID, Count>& counts_per_process = result->second; | |
676 for (auto iter : counts_per_process) { | |
677 RenderProcessHost* host = RenderProcessHost::FromID(iter.first); | |
678 DCHECK(host); | |
679 if (host->VisibleWidgetCount()) | |
680 foreground_processes->insert(host); | |
681 else | |
682 background_processes->insert(host); | |
683 } | |
684 } | |
685 | |
686 private: | |
687 using ProcessID = int; | |
688 using Count = int; | |
689 using CountPerProcessPerSiteMap = std::map<GURL, std::map<ProcessID, Count>>; | |
690 CountPerProcessPerSiteMap map_; | |
691 }; | |
692 | |
632 } // namespace | 693 } // namespace |
633 | 694 |
634 RendererMainThreadFactoryFunction g_renderer_main_thread_factory = NULL; | 695 RendererMainThreadFactoryFunction g_renderer_main_thread_factory = NULL; |
635 | 696 |
636 base::MessageLoop* g_in_process_thread; | 697 base::MessageLoop* g_in_process_thread; |
637 | 698 |
638 // Stores the maximum number of renderer processes the content module can | 699 // Stores the maximum number of renderer processes the content module can |
639 // create. | 700 // create. |
640 static size_t g_max_renderer_count_override = 0; | 701 static size_t g_max_renderer_count_override = 0; |
641 | 702 |
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1741 DCHECK_GT(audio_stream_count_, 0); | 1802 DCHECK_GT(audio_stream_count_, 0); |
1742 --audio_stream_count_; | 1803 --audio_stream_count_; |
1743 UpdateProcessPriority(); | 1804 UpdateProcessPriority(); |
1744 } | 1805 } |
1745 | 1806 |
1746 void RenderProcessHostImpl::set_render_process_host_factory( | 1807 void RenderProcessHostImpl::set_render_process_host_factory( |
1747 const RenderProcessHostFactory* rph_factory) { | 1808 const RenderProcessHostFactory* rph_factory) { |
1748 g_render_process_host_factory_ = rph_factory; | 1809 g_render_process_host_factory_ = rph_factory; |
1749 } | 1810 } |
1750 | 1811 |
1812 // static | |
1813 void RenderProcessHostImpl::AddFrameWithSite( | |
1814 BrowserContext* browser_context, | |
1815 RenderProcessHost* render_process_host, | |
1816 const GURL& site_url) { | |
1817 if (site_url.is_empty()) | |
1818 return; | |
1819 | |
1820 SiteCountPerProcessTracker* tracker = | |
1821 static_cast<SiteCountPerProcessTracker*>(browser_context->GetUserData( | |
1822 kCommittedSiteCountPerProcessTrackerKey)); | |
1823 if (!tracker) { | |
1824 tracker = new SiteCountPerProcessTracker(); | |
1825 browser_context->SetUserData(kCommittedSiteCountPerProcessTrackerKey, | |
1826 base::WrapUnique(tracker)); | |
1827 } | |
1828 tracker->AddCountForSiteForProcess(render_process_host->GetID(), site_url); | |
1829 } | |
1830 | |
1831 // static | |
1832 void RenderProcessHostImpl::RemoveFrameWithSite( | |
1833 BrowserContext* browser_context, | |
1834 RenderProcessHost* render_process_host, | |
1835 const GURL& site_url) { | |
1836 if (site_url.is_empty()) | |
1837 return; | |
1838 | |
1839 SiteCountPerProcessTracker* tracker = | |
1840 static_cast<SiteCountPerProcessTracker*>(browser_context->GetUserData( | |
1841 kCommittedSiteCountPerProcessTrackerKey)); | |
1842 if (!tracker) { | |
1843 tracker = new SiteCountPerProcessTracker(); | |
1844 browser_context->SetUserData(kCommittedSiteCountPerProcessTrackerKey, | |
1845 base::WrapUnique(tracker)); | |
1846 } | |
1847 tracker->RemoveCountForSiteForProcess(render_process_host->GetID(), site_url); | |
1848 } | |
1849 | |
1850 // static | |
1851 void RenderProcessHostImpl::AddExpectedNavigationToSite( | |
1852 BrowserContext* browser_context, | |
1853 RenderProcessHost* render_process_host, | |
1854 const GURL& site_url) { | |
1855 if (site_url.is_empty()) | |
1856 return; | |
1857 | |
1858 SiteCountPerProcessTracker* tracker = | |
1859 static_cast<SiteCountPerProcessTracker*>( | |
1860 browser_context->GetUserData(kPendingSiteCountPerProcessTrackerKey)); | |
1861 if (!tracker) { | |
1862 tracker = new SiteCountPerProcessTracker(); | |
1863 browser_context->SetUserData(kPendingSiteCountPerProcessTrackerKey, | |
1864 base::WrapUnique(tracker)); | |
1865 } | |
1866 tracker->AddCountForSiteForProcess(render_process_host->GetID(), site_url); | |
1867 } | |
1868 | |
1869 // static | |
1870 void RenderProcessHostImpl::RemoveExpectedNavigationToSite( | |
1871 BrowserContext* browser_context, | |
1872 RenderProcessHost* render_process_host, | |
1873 const GURL& site_url) { | |
1874 if (site_url.is_empty()) | |
1875 return; | |
1876 | |
1877 SiteCountPerProcessTracker* tracker = | |
1878 static_cast<SiteCountPerProcessTracker*>( | |
1879 browser_context->GetUserData(kPendingSiteCountPerProcessTrackerKey)); | |
1880 if (!tracker) { | |
1881 tracker = new SiteCountPerProcessTracker(); | |
1882 browser_context->SetUserData(kPendingSiteCountPerProcessTrackerKey, | |
1883 base::WrapUnique(tracker)); | |
1884 } | |
1885 tracker->RemoveCountForSiteForProcess(render_process_host->GetID(), site_url); | |
1886 } | |
1887 | |
1751 bool RenderProcessHostImpl::IsForGuestsOnly() const { | 1888 bool RenderProcessHostImpl::IsForGuestsOnly() const { |
1752 return is_for_guests_only_; | 1889 return is_for_guests_only_; |
1753 } | 1890 } |
1754 | 1891 |
1755 StoragePartition* RenderProcessHostImpl::GetStoragePartition() const { | 1892 StoragePartition* RenderProcessHostImpl::GetStoragePartition() const { |
1756 return storage_partition_impl_; | 1893 return storage_partition_impl_; |
1757 } | 1894 } |
1758 | 1895 |
1759 static void AppendCompositorCommandLineFlags(base::CommandLine* command_line) { | 1896 static void AppendCompositorCommandLineFlags(base::CommandLine* command_line) { |
1760 command_line->AppendSwitchASCII( | 1897 command_line->AppendSwitchASCII( |
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2866 // First, attempt to reuse an existing RenderProcessHost if necessary. | 3003 // First, attempt to reuse an existing RenderProcessHost if necessary. |
2867 switch (process_reuse_policy) { | 3004 switch (process_reuse_policy) { |
2868 case SiteInstanceImpl::ProcessReusePolicy::PROCESS_PER_SITE: | 3005 case SiteInstanceImpl::ProcessReusePolicy::PROCESS_PER_SITE: |
2869 render_process_host = GetProcessHostForSite(browser_context, site_url); | 3006 render_process_host = GetProcessHostForSite(browser_context, site_url); |
2870 break; | 3007 break; |
2871 case SiteInstanceImpl::ProcessReusePolicy::USE_DEFAULT_SUBFRAME_PROCESS: | 3008 case SiteInstanceImpl::ProcessReusePolicy::USE_DEFAULT_SUBFRAME_PROCESS: |
2872 DCHECK(SiteIsolationPolicy::IsTopDocumentIsolationEnabled()); | 3009 DCHECK(SiteIsolationPolicy::IsTopDocumentIsolationEnabled()); |
2873 render_process_host = GetDefaultSubframeProcessHost( | 3010 render_process_host = GetDefaultSubframeProcessHost( |
2874 browser_context, site_instance, is_for_guests_only); | 3011 browser_context, site_instance, is_for_guests_only); |
2875 break; | 3012 break; |
3013 case SiteInstanceImpl::ProcessReusePolicy::REUSE_PENDING_OR_COMMITTED_SITE: | |
3014 render_process_host = | |
3015 FindReusableProcessHostForSite(browser_context, site_url); | |
3016 break; | |
2876 default: | 3017 default: |
2877 break; | 3018 break; |
2878 } | 3019 } |
2879 | 3020 |
2880 // If not (or if none found), see if we should reuse an existing process. | 3021 // If not (or if none found), see if we should reuse an existing process. |
2881 if (!render_process_host && | 3022 if (!render_process_host && |
2882 ShouldTryToUseExistingProcessHost(browser_context, site_url)) { | 3023 ShouldTryToUseExistingProcessHost(browser_context, site_url)) { |
2883 render_process_host = GetExistingProcessHost(browser_context, site_url); | 3024 render_process_host = GetExistingProcessHost(browser_context, site_url); |
2884 } | 3025 } |
2885 | 3026 |
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3258 browser_context->GetUserData(&kDefaultSubframeProcessHostHolderKey)); | 3399 browser_context->GetUserData(&kDefaultSubframeProcessHostHolderKey)); |
3259 if (!holder) { | 3400 if (!holder) { |
3260 holder = new DefaultSubframeProcessHostHolder(browser_context); | 3401 holder = new DefaultSubframeProcessHostHolder(browser_context); |
3261 browser_context->SetUserData(kDefaultSubframeProcessHostHolderKey, | 3402 browser_context->SetUserData(kDefaultSubframeProcessHostHolderKey, |
3262 base::WrapUnique(holder)); | 3403 base::WrapUnique(holder)); |
3263 } | 3404 } |
3264 | 3405 |
3265 return holder->GetProcessHost(site_instance, is_for_guests_only); | 3406 return holder->GetProcessHost(site_instance, is_for_guests_only); |
3266 } | 3407 } |
3267 | 3408 |
3409 // static | |
3410 RenderProcessHost* RenderProcessHostImpl::FindReusableProcessHostForSite( | |
3411 BrowserContext* browser_context, | |
3412 const GURL& site_url) { | |
3413 if (site_url.is_empty()) | |
3414 return nullptr; | |
3415 | |
3416 std::set<RenderProcessHost*> eligible_foreground_hosts; | |
3417 std::set<RenderProcessHost*> eligible_background_hosts; | |
3418 | |
3419 // Add the RenderProcessHosts hosting a frame for |site_url| to the list of | |
3420 // eligible RenderProcessHosts. | |
3421 SiteCountPerProcessTracker* committed_tracker = | |
3422 static_cast<SiteCountPerProcessTracker*>(browser_context->GetUserData( | |
3423 kCommittedSiteCountPerProcessTrackerKey)); | |
3424 if (committed_tracker) { | |
3425 committed_tracker->FindRenderProcessesForSite( | |
3426 site_url, &eligible_foreground_hosts, &eligible_background_hosts); | |
3427 } | |
3428 | |
3429 // Add the RenderProcessHosts expecting a navigation to |site_url| to the list | |
3430 // of eligible RenderProcessHosts. | |
3431 SiteCountPerProcessTracker* pending_tracker = | |
3432 static_cast<SiteCountPerProcessTracker*>( | |
3433 browser_context->GetUserData(kPendingSiteCountPerProcessTrackerKey)); | |
3434 if (pending_tracker) { | |
3435 pending_tracker->FindRenderProcessesForSite( | |
3436 site_url, &eligible_foreground_hosts, &eligible_background_hosts); | |
Charlie Reis
2017/05/23 07:29:14
Should there be any preference between processes t
clamy
2017/05/23 13:41:15
I think it would prioritize the navigating ones to
| |
3437 } | |
3438 | |
3439 if (!eligible_foreground_hosts.empty()) { | |
3440 int index = base::RandInt(0, eligible_foreground_hosts.size() - 1); | |
3441 auto iterator = eligible_foreground_hosts.begin(); | |
3442 for (int i = 0; i < index; ++i) | |
3443 ++iterator; | |
3444 return (*iterator); | |
3445 } | |
3446 | |
3447 if (!eligible_background_hosts.empty()) { | |
3448 int index = base::RandInt(0, eligible_background_hosts.size() - 1); | |
3449 auto iterator = eligible_background_hosts.begin(); | |
3450 for (int i = 0; i < index; ++i) | |
3451 ++iterator; | |
3452 return (*iterator); | |
3453 } | |
3454 | |
3455 return nullptr; | |
3456 } | |
3457 | |
3268 #if BUILDFLAG(ENABLE_WEBRTC) | 3458 #if BUILDFLAG(ENABLE_WEBRTC) |
3269 void RenderProcessHostImpl::OnRegisterAecDumpConsumer(int id) { | 3459 void RenderProcessHostImpl::OnRegisterAecDumpConsumer(int id) { |
3270 BrowserThread::PostTask( | 3460 BrowserThread::PostTask( |
3271 BrowserThread::UI, FROM_HERE, | 3461 BrowserThread::UI, FROM_HERE, |
3272 base::Bind(&RenderProcessHostImpl::RegisterAecDumpConsumerOnUIThread, | 3462 base::Bind(&RenderProcessHostImpl::RegisterAecDumpConsumerOnUIThread, |
3273 weak_factory_.GetWeakPtr(), id)); | 3463 weak_factory_.GetWeakPtr(), id)); |
3274 } | 3464 } |
3275 | 3465 |
3276 void RenderProcessHostImpl::OnUnregisterAecDumpConsumer(int id) { | 3466 void RenderProcessHostImpl::OnUnregisterAecDumpConsumer(int id) { |
3277 BrowserThread::PostTask( | 3467 BrowserThread::PostTask( |
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3348 LOG(ERROR) << "Terminating render process for bad Mojo message: " << error; | 3538 LOG(ERROR) << "Terminating render process for bad Mojo message: " << error; |
3349 | 3539 |
3350 // The ReceivedBadMessage call below will trigger a DumpWithoutCrashing. | 3540 // The ReceivedBadMessage call below will trigger a DumpWithoutCrashing. |
3351 // Capture the error message in a crash key value. | 3541 // Capture the error message in a crash key value. |
3352 base::debug::ScopedCrashKey error_key_value("mojo-message-error", error); | 3542 base::debug::ScopedCrashKey error_key_value("mojo-message-error", error); |
3353 bad_message::ReceivedBadMessage(render_process_id, | 3543 bad_message::ReceivedBadMessage(render_process_id, |
3354 bad_message::RPH_MOJO_PROCESS_ERROR); | 3544 bad_message::RPH_MOJO_PROCESS_ERROR); |
3355 } | 3545 } |
3356 | 3546 |
3357 } // namespace content | 3547 } // namespace content |
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