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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_dump_observer_android.h" | |
6 | |
7 #include <unistd.h> | |
8 | |
9 #include "base/bind.h" | |
10 #include "base/logging.h" | |
11 #include "base/stl_util.h" | |
12 #include "base/threading/sequenced_worker_pool.h" | |
13 #include "content/public/browser/browser_thread.h" | |
14 #include "content/public/browser/child_process_data.h" | |
15 #include "content/public/browser/notification_service.h" | |
16 #include "content/public/browser/notification_types.h" | |
17 #include "content/public/browser/render_process_host.h" | |
18 | |
19 using content::BrowserThread; | |
20 | |
21 namespace breakpad { | |
22 | |
23 CrashDumpObserver::Client::Client() {} | |
24 | |
25 CrashDumpObserver::Client::~Client() {} | |
26 | |
27 // static | |
28 CrashDumpObserver* CrashDumpObserver::instance_ = NULL; | |
Lei Zhang
2016/10/05 16:57:45
nit: nullptr
| |
29 | |
30 // static | |
31 CrashDumpObserver* CrashDumpObserver::GetInstance() { | |
32 CHECK(instance_); | |
33 return instance_; | |
34 } | |
35 | |
36 CrashDumpObserver::CrashDumpObserver() { | |
37 DCHECK_CURRENTLY_ON(BrowserThread::UI); | |
38 DCHECK(!instance_); | |
39 instance_ = this; | |
40 notification_registrar_.Add(this, | |
41 content::NOTIFICATION_RENDERER_PROCESS_TERMINATED, | |
42 content::NotificationService::AllSources()); | |
43 notification_registrar_.Add(this, | |
44 content::NOTIFICATION_RENDERER_PROCESS_CLOSED, | |
45 content::NotificationService::AllSources()); | |
46 BrowserChildProcessObserver::Add(this); | |
47 } | |
48 | |
49 CrashDumpObserver::~CrashDumpObserver() { | |
50 instance_ = nullptr; | |
51 BrowserChildProcessObserver::Remove(this); | |
52 } | |
53 | |
54 void CrashDumpObserver::OnChildExit(int child_process_id, | |
55 base::ProcessHandle pid, | |
56 content::ProcessType process_type, | |
57 base::TerminationStatus termination_status, | |
58 base::android::ApplicationState app_state) { | |
59 base::AutoLock auto_lock(registered_clients_lock_); | |
60 base::SequencedWorkerPool* pool = BrowserThread::GetBlockingPool(); | |
61 base::SequencedWorkerPool::SequenceToken token = pool->GetSequenceToken(); | |
62 | |
63 for (auto& client : registered_clients_) { | |
64 pool->PostSequencedWorkerTask( | |
65 token, FROM_HERE, | |
66 base::Bind(&Client::OnChildExit, client, child_process_id, pid, | |
67 process_type, termination_status, app_state)); | |
68 } | |
69 } | |
70 | |
71 void CrashDumpObserver::RegisterClient(scoped_refptr<Client> client) { | |
72 base::AutoLock auto_lock(registered_clients_lock_); | |
73 if (!ContainsValue(registered_clients_, client)) | |
74 registered_clients_.push_back(std::move(client)); | |
75 } | |
76 | |
77 void CrashDumpObserver::UnregisterClient(scoped_refptr<Client> client) { | |
Lei Zhang
2016/10/05 18:00:00
I don't see anyone ever calling this.
Tobias Sargeant
2016/10/06 17:42:22
True, but it seems like it's reasonable to have it
| |
78 base::AutoLock auto_lock(registered_clients_lock_); | |
79 registered_clients_.remove(client); | |
80 } | |
81 | |
82 void CrashDumpObserver::BrowserChildProcessStarted( | |
83 int child_process_id, | |
84 content::FileDescriptorInfo* mappings) { | |
85 base::AutoLock auto_lock(registered_clients_lock_); | |
86 for (auto& client : registered_clients_) { | |
87 client->OnChildStart(child_process_id, mappings); | |
88 } | |
89 } | |
90 | |
91 void CrashDumpObserver::BrowserChildProcessHostDisconnected( | |
92 const content::ChildProcessData& data) { | |
93 OnChildExit(data.id, data.handle, | |
94 static_cast<content::ProcessType>(data.process_type), | |
95 base::TERMINATION_STATUS_MAX_ENUM, | |
96 base::android::APPLICATION_STATE_UNKNOWN); | |
97 } | |
98 | |
99 void CrashDumpObserver::BrowserChildProcessCrashed( | |
100 const content::ChildProcessData& data, | |
101 int exit_code) { | |
102 OnChildExit(data.id, data.handle, | |
103 static_cast<content::ProcessType>(data.process_type), | |
104 base::TERMINATION_STATUS_ABNORMAL_TERMINATION, | |
105 base::android::APPLICATION_STATE_UNKNOWN); | |
106 } | |
107 | |
108 void CrashDumpObserver::Observe(int type, | |
109 const content::NotificationSource& source, | |
110 const content::NotificationDetails& details) { | |
111 content::RenderProcessHost* rph = | |
112 content::Source<content::RenderProcessHost>(source).ptr(); | |
113 base::TerminationStatus term_status = base::TERMINATION_STATUS_MAX_ENUM; | |
114 base::android::ApplicationState app_state = | |
115 base::android::APPLICATION_STATE_UNKNOWN; | |
116 switch (type) { | |
117 case content::NOTIFICATION_RENDERER_PROCESS_TERMINATED: { | |
118 // NOTIFICATION_RENDERER_PROCESS_TERMINATED is sent when the renderer | |
119 // process is cleanly shutdown. However, we still need to close the | |
120 // minidump_fd we kept open. | |
121 term_status = base::TERMINATION_STATUS_NORMAL_TERMINATION; | |
122 break; | |
123 } | |
124 case content::NOTIFICATION_RENDERER_PROCESS_CLOSED: { | |
125 // We do not care about android fast shutdowns as it is a known case where | |
126 // the renderer is intentionally killed when we are done with it. | |
127 if (rph->FastShutdownStarted()) { | |
128 break; | |
129 } | |
130 content::RenderProcessHost::RendererClosedDetails* process_details = | |
131 content::Details<content::RenderProcessHost::RendererClosedDetails>( | |
132 details) | |
133 .ptr(); | |
134 term_status = process_details->status; | |
135 app_state = base::android::ApplicationStatusListener::GetState(); | |
136 break; | |
137 } | |
138 default: | |
139 NOTREACHED(); | |
140 return; | |
141 } | |
142 | |
143 OnChildExit(rph->GetID(), rph->GetHandle(), content::PROCESS_TYPE_RENDERER, | |
144 term_status, app_state); | |
145 } | |
146 | |
147 } // namespace breakpad | |
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