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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CHROME_BROWSER_CRASH_HANDLER_HOST_LINUXISH_H_ | |
6 #define CHROME_BROWSER_CRASH_HANDLER_HOST_LINUXISH_H_ | |
7 #pragma once | |
8 | |
9 #include "base/compiler_specific.h" | |
10 #include "base/message_loop.h" | |
11 | |
12 #if defined(USE_LINUX_BREAKPAD) | |
13 #include <sys/types.h> | |
14 | |
15 #include <string> | |
16 | |
17 #include "base/memory/scoped_ptr.h" | |
18 | |
19 struct BreakpadInfo; | |
20 | |
21 namespace base { | |
22 class Thread; | |
23 } | |
24 #endif // defined(USE_LINUX_BREAKPAD) | |
25 | |
26 template <typename T> struct DefaultSingletonTraits; | |
27 | |
28 // This is the base class for singleton objects which crash dump renderers and | |
29 // plugins on Linux or Android. We perform the crash dump from the browser | |
30 // because it allows us to be outside the sandbox. | |
31 // | |
32 // PluginCrashHandlerHostLinux and RendererCrashHandlerHostLinux are | |
33 // singletons that handle plugin and renderer crashes, respectively. | |
34 // | |
35 // Processes signal that they need to be dumped by sending a datagram over a | |
36 // UNIX domain socket. All processes of the same type share the client end of | |
37 // this socket which is installed in their descriptor table before exec. | |
38 class CrashHandlerHostLinux : public MessageLoopForIO::Watcher, | |
39 public MessageLoop::DestructionObserver { | |
40 public: | |
41 // Get the file descriptor which processes should be given in order to signal | |
42 // crashes to the browser. | |
43 int GetDeathSignalSocket() const { | |
44 return process_socket_; | |
45 } | |
46 | |
47 // MessagePumbLibevent::Watcher impl: | |
48 virtual void OnFileCanWriteWithoutBlocking(int fd) OVERRIDE; | |
49 virtual void OnFileCanReadWithoutBlocking(int fd) OVERRIDE; | |
50 | |
51 // MessageLoop::DestructionObserver impl: | |
52 virtual void WillDestroyCurrentMessageLoop() OVERRIDE; | |
53 | |
54 #if defined(USE_LINUX_BREAKPAD) | |
55 // Whether we are shutting down or not. | |
56 bool IsShuttingDown() const; | |
57 #endif | |
58 | |
59 protected: | |
60 CrashHandlerHostLinux(); | |
61 virtual ~CrashHandlerHostLinux(); | |
62 | |
63 #if defined(USE_LINUX_BREAKPAD) | |
64 // Only called in concrete subclasses. | |
65 void InitCrashUploaderThread(); | |
66 | |
67 std::string process_type_; | |
68 #endif | |
69 | |
70 private: | |
71 void Init(); | |
72 | |
73 #if defined(USE_LINUX_BREAKPAD) | |
74 // This is here on purpose to make CrashHandlerHostLinux abstract. | |
75 virtual void SetProcessType() = 0; | |
76 | |
77 // Do work on the FILE thread for OnFileCanReadWithoutBlocking(). | |
78 void WriteDumpFile(BreakpadInfo* info, | |
79 pid_t crashing_pid, | |
80 char* crash_context, | |
81 int signal_fd); | |
82 | |
83 // Continue OnFileCanReadWithoutBlocking()'s work on the IO thread. | |
84 void QueueCrashDumpTask(BreakpadInfo* info, int signal_fd); | |
85 #endif | |
86 | |
87 int process_socket_; | |
88 int browser_socket_; | |
89 | |
90 #if defined(USE_LINUX_BREAKPAD) | |
91 MessageLoopForIO::FileDescriptorWatcher file_descriptor_watcher_; | |
92 scoped_ptr<base::Thread> uploader_thread_; | |
93 bool shutting_down_; | |
94 #endif | |
95 | |
96 DISALLOW_COPY_AND_ASSIGN(CrashHandlerHostLinux); | |
97 }; | |
98 | |
99 class ExtensionCrashHandlerHostLinux : public CrashHandlerHostLinux { | |
100 public: | |
101 // Returns the singleton instance. | |
102 static ExtensionCrashHandlerHostLinux* GetInstance(); | |
103 | |
104 private: | |
105 friend struct DefaultSingletonTraits<ExtensionCrashHandlerHostLinux>; | |
106 ExtensionCrashHandlerHostLinux(); | |
107 virtual ~ExtensionCrashHandlerHostLinux(); | |
108 | |
109 #if defined(USE_LINUX_BREAKPAD) | |
110 virtual void SetProcessType() OVERRIDE; | |
111 #endif | |
112 | |
113 DISALLOW_COPY_AND_ASSIGN(ExtensionCrashHandlerHostLinux); | |
114 }; | |
115 | |
116 class GpuCrashHandlerHostLinux : public CrashHandlerHostLinux { | |
117 public: | |
118 // Returns the singleton instance. | |
119 static GpuCrashHandlerHostLinux* GetInstance(); | |
120 | |
121 private: | |
122 friend struct DefaultSingletonTraits<GpuCrashHandlerHostLinux>; | |
123 GpuCrashHandlerHostLinux(); | |
124 virtual ~GpuCrashHandlerHostLinux(); | |
125 | |
126 #if defined(USE_LINUX_BREAKPAD) | |
127 virtual void SetProcessType() OVERRIDE; | |
128 #endif | |
129 | |
130 DISALLOW_COPY_AND_ASSIGN(GpuCrashHandlerHostLinux); | |
131 }; | |
132 | |
133 class PluginCrashHandlerHostLinux : public CrashHandlerHostLinux { | |
134 public: | |
135 // Returns the singleton instance. | |
136 static PluginCrashHandlerHostLinux* GetInstance(); | |
137 | |
138 private: | |
139 friend struct DefaultSingletonTraits<PluginCrashHandlerHostLinux>; | |
140 PluginCrashHandlerHostLinux(); | |
141 virtual ~PluginCrashHandlerHostLinux(); | |
142 | |
143 #if defined(USE_LINUX_BREAKPAD) | |
144 virtual void SetProcessType() OVERRIDE; | |
145 #endif | |
146 | |
147 DISALLOW_COPY_AND_ASSIGN(PluginCrashHandlerHostLinux); | |
148 }; | |
149 | |
150 class PpapiCrashHandlerHostLinux : public CrashHandlerHostLinux { | |
151 public: | |
152 // Returns the singleton instance. | |
153 static PpapiCrashHandlerHostLinux* GetInstance(); | |
154 | |
155 private: | |
156 friend struct DefaultSingletonTraits<PpapiCrashHandlerHostLinux>; | |
157 PpapiCrashHandlerHostLinux(); | |
158 virtual ~PpapiCrashHandlerHostLinux(); | |
159 | |
160 #if defined(USE_LINUX_BREAKPAD) | |
161 virtual void SetProcessType() OVERRIDE; | |
162 #endif | |
163 | |
164 DISALLOW_COPY_AND_ASSIGN(PpapiCrashHandlerHostLinux); | |
165 }; | |
166 | |
167 class RendererCrashHandlerHostLinux : public CrashHandlerHostLinux { | |
168 public: | |
169 // Returns the singleton instance. | |
170 static RendererCrashHandlerHostLinux* GetInstance(); | |
171 | |
172 private: | |
173 friend struct DefaultSingletonTraits<RendererCrashHandlerHostLinux>; | |
174 RendererCrashHandlerHostLinux(); | |
175 virtual ~RendererCrashHandlerHostLinux(); | |
176 | |
177 #if defined(USE_LINUX_BREAKPAD) | |
178 virtual void SetProcessType() OVERRIDE; | |
179 #endif | |
180 | |
181 DISALLOW_COPY_AND_ASSIGN(RendererCrashHandlerHostLinux); | |
182 }; | |
183 | |
184 #endif // CHROME_BROWSER_CRASH_HANDLER_HOST_LINUXISH_H_ | |
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