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| 1 // Copyright 2015 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 "components/crash/content/browser/crash_micro_dump_manager_android.h" | |
| 6 | |
| 7 #include <unistd.h> | |
| 8 | |
| 9 #include "base/bind.h" | |
| 10 #include "base/logging.h" | |
| 11 #include "content/public/browser/browser_thread.h" | |
| 12 #include "content/public/browser/child_process_data.h" | |
| 13 #include "content/public/browser/notification_service.h" | |
| 14 #include "content/public/browser/notification_types.h" | |
| 15 #include "content/public/browser/render_process_host.h" | |
| 16 | |
| 17 using content::BrowserThread; | |
| 18 | |
| 19 namespace breakpad { | |
| 20 | |
| 21 // static | |
| 22 CrashMicroDumpManager* CrashMicroDumpManager::GetInstance() { | |
| 23 return base::Singleton<CrashMicroDumpManager>::get(); | |
| 24 } | |
| 25 | |
| 26 CrashMicroDumpManager::CrashMicroDumpManager() : weak_factory_(this) { | |
| 27 DCHECK_CURRENTLY_ON(BrowserThread::UI); | |
| 28 | |
| 29 notification_registrar_.Add(this, | |
| 30 content::NOTIFICATION_RENDERER_PROCESS_TERMINATED, | |
| 31 content::NotificationService::AllSources()); | |
| 32 notification_registrar_.Add(this, | |
| 33 content::NOTIFICATION_RENDERER_PROCESS_CLOSED, | |
| 34 content::NotificationService::AllSources()); | |
| 35 } | |
| 36 | |
| 37 CrashMicroDumpManager::~CrashMicroDumpManager() { | |
| 38 base::AutoLock auto_lock(child_process_id_to_pipe_lock_); | |
| 39 child_process_id_to_pipe_.clear(); | |
| 40 } | |
| 41 | |
| 42 base::ScopedFD CrashMicroDumpManager::CreateCrashInfoChannel( | |
| 43 int child_process_id) { | |
| 44 DCHECK_CURRENTLY_ON(BrowserThread::PROCESS_LAUNCHER); | |
| 45 std::unique_ptr<base::SyncSocket> local_pipe(new base::SyncSocket()); | |
| 46 std::unique_ptr<base::SyncSocket> child_pipe(new base::SyncSocket()); | |
| 47 if (!base::SyncSocket::CreatePair(local_pipe.get(), child_pipe.get())) | |
| 48 return base::ScopedFD(); | |
| 49 { | |
| 50 base::AutoLock auto_lock(child_process_id_to_pipe_lock_); | |
| 51 DCHECK(!ContainsKey(child_process_id_to_pipe_, child_process_id)); | |
| 52 child_process_id_to_pipe_[child_process_id] = std::move(local_pipe); | |
| 53 } | |
| 54 return base::ScopedFD(dup(child_pipe->handle())); | |
| 55 } | |
| 56 | |
| 57 void CrashMicroDumpManager::HandleChildTerminationOnFileThread( | |
| 58 int child_process_id, | |
| 59 base::TerminationStatus termination_status) { | |
| 60 DCHECK_CURRENTLY_ON(BrowserThread::FILE); | |
| 61 | |
| 62 std::unique_ptr<base::SyncSocket> pipe; | |
| 63 { | |
| 64 base::AutoLock auto_lock(child_process_id_to_pipe_lock_); | |
| 65 const auto& iter = child_process_id_to_pipe_.find(child_process_id); | |
| 66 if (iter == child_process_id_to_pipe_.end()) { | |
| 67 // We might get a NOTIFICATION_RENDERER_PROCESS_TERMINATED and a | |
| 68 // NOTIFICATION_RENDERER_PROCESS_CLOSED. | |
| 69 return; | |
| 70 } | |
| 71 pipe = std::move(iter->second); | |
| 72 child_process_id_to_pipe_.erase(iter); | |
| 73 } | |
| 74 DCHECK(pipe->handle() != base::SyncSocket::kInvalidHandle); | |
| 75 | |
| 76 if (termination_status == base::TERMINATION_STATUS_NORMAL_TERMINATION) | |
| 77 return; | |
| 78 if (pipe->Peek() >= sizeof(int)) { | |
| 79 int exit_code; | |
| 80 pipe->Receive(&exit_code, sizeof(exit_code)); | |
| 81 LOG(FATAL) << "Renderer process crash detected (code " << exit_code | |
| 82 << "). Terminating browser."; | |
| 83 } else { | |
| 84 // The child process hasn't written anything into the pipe. This implies | |
| 85 // that it was terminated via SIGKILL by the low memory killer, and thus we | |
| 86 // need to perform a clean exit. | |
| 87 exit(0); | |
| 88 } | |
| 89 } | |
| 90 | |
| 91 void CrashMicroDumpManager::Observe( | |
| 92 int type, | |
| 93 const content::NotificationSource& source, | |
| 94 const content::NotificationDetails& details) { | |
| 95 content::RenderProcessHost* rph = | |
| 96 content::Source<content::RenderProcessHost>(source).ptr(); | |
| 97 // In case of a normal termination we just need to close the pipe_fd we kept | |
| 98 // open. | |
| 99 base::TerminationStatus termination_status = | |
| 100 base::TERMINATION_STATUS_NORMAL_TERMINATION; | |
| 101 switch (type) { | |
| 102 case content::NOTIFICATION_RENDERER_PROCESS_TERMINATED: { | |
| 103 // NOTIFICATION_RENDERER_PROCESS_TERMINATED is sent when the renderer | |
| 104 // process is cleanly shutdown. | |
| 105 break; | |
| 106 } | |
| 107 case content::NOTIFICATION_RENDERER_PROCESS_CLOSED: { | |
| 108 // Android fast shutdowns is a known case where the renderer is | |
| 109 // intentionally killed when we are done with it. | |
| 110 if (!rph->FastShutdownStarted()) { | |
| 111 content::RenderProcessHost::RendererClosedDetails* process_details = | |
| 112 content::Details<content::RenderProcessHost::RendererClosedDetails>( | |
| 113 details).ptr(); | |
| 114 termination_status = process_details->status; | |
| 115 } | |
| 116 break; | |
| 117 } | |
| 118 default: | |
| 119 NOTREACHED(); | |
| 120 return; | |
| 121 } | |
| 122 BrowserThread::PostTask( | |
| 123 BrowserThread::FILE, FROM_HERE, | |
| 124 base::Bind(&CrashMicroDumpManager::HandleChildTerminationOnFileThread, | |
| 125 weak_factory_.GetWeakPtr(), rph->GetID(), | |
| 126 termination_status)); | |
| 127 } | |
| 128 | |
| 129 } // namespace breakpad | |
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Chromium Code Reviews
Issue 2393853002:
Refactor CrashDump*Manager to use a shared CrashDumpObserver singleton. (Closed)
