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1 // Copyright 2016 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 "android_webview/browser/aw_browser_terminator.h" | |
6 | |
7 #include <unistd.h> | |
8 | |
9 #include "android_webview/common/aw_descriptors.h" | |
10 #include "base/bind.h" | |
11 #include "base/logging.h" | |
12 #include "base/stl_util.h" | |
13 #include "base/sync_socket.h" | |
14 #include "content/public/browser/browser_thread.h" | |
15 #include "content/public/browser/child_process_data.h" | |
16 #include "content/public/browser/notification_service.h" | |
17 #include "content/public/browser/notification_types.h" | |
18 #include "content/public/browser/render_process_host.h" | |
19 | |
20 namespace android_webview { | |
21 | |
22 AwBrowserTerminator::AwBrowserTerminator() {} | |
23 | |
24 AwBrowserTerminator::~AwBrowserTerminator() {} | |
25 | |
26 void AwBrowserTerminator::OnChildStart(int child_process_id, | |
27 content::FileDescriptorInfo* mappings) { | |
28 DCHECK_CURRENTLY_ON(content::BrowserThread::PROCESS_LAUNCHER); | |
29 | |
30 base::AutoLock auto_lock(child_process_id_to_pipe_lock_); | |
31 DCHECK(!ContainsKey(child_process_id_to_pipe_, child_process_id)); | |
32 | |
33 std::unique_ptr<base::SyncSocket> local_pipe(new base::SyncSocket()); | |
Bernhard Bauer
2016/10/14 10:41:01
auto local_pipe = base::MakeUnique<base::SyncSocke
Tobias Sargeant
2016/12/08 16:41:41
This is moved code, but ok.
| |
34 std::unique_ptr<base::SyncSocket> child_pipe(new base::SyncSocket()); | |
35 if (base::SyncSocket::CreatePair(local_pipe.get(), child_pipe.get())) { | |
36 child_process_id_to_pipe_[child_process_id] = std::move(local_pipe); | |
37 mappings->Transfer(kAndroidWebViewCrashSignalDescriptor, | |
38 base::ScopedFD(dup(child_pipe->handle()))); | |
39 } | |
40 } | |
41 | |
42 void AwBrowserTerminator::OnChildExit( | |
43 int child_process_id, | |
44 base::ProcessHandle pid, | |
45 content::ProcessType process_type, | |
46 base::TerminationStatus termination_status, | |
47 base::android::ApplicationState app_state) { | |
48 std::unique_ptr<base::SyncSocket> pipe; | |
49 | |
50 { | |
51 base::AutoLock auto_lock(child_process_id_to_pipe_lock_); | |
52 const auto& iter = child_process_id_to_pipe_.find(child_process_id); | |
53 if (iter == child_process_id_to_pipe_.end()) { | |
54 // We might get a NOTIFICATION_RENDERER_PROCESS_TERMINATED and a | |
boliu
2016/10/13 21:07:18
hmm, you probably want to document on the observer
Tobias Sargeant
2016/12/08 16:41:41
Done.
| |
55 // NOTIFICATION_RENDERER_PROCESS_CLOSED. | |
56 return; | |
57 } | |
58 pipe = std::move(iter->second); | |
59 child_process_id_to_pipe_.erase(iter); | |
60 } | |
61 DCHECK(pipe->handle() != base::SyncSocket::kInvalidHandle); | |
62 | |
63 if (termination_status == base::TERMINATION_STATUS_NORMAL_TERMINATION) | |
64 return; | |
65 if (pipe->Peek() >= sizeof(int)) { | |
66 int exit_code; | |
67 pipe->Receive(&exit_code, sizeof(exit_code)); | |
68 LOG(FATAL) << "Renderer process crash detected (code " << exit_code | |
69 << "). Terminating browser."; | |
70 } else { | |
71 // The child process hasn't written anything into the pipe. This implies | |
72 // that it was terminated via SIGKILL by the low memory killer, and thus we | |
73 // need to perform a clean exit. | |
74 exit(0); | |
75 } | |
76 } | |
77 | |
78 } // namespace breakpad | |
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