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Side by Side Diff: components/crash/content/tools/crash_service.h

Issue 1351923002: Revert of Turn components/crash into a layered component. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 3 months ago
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1 // Copyright (c) 2011 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 COMPONENTS_CRASH_CONTENT_TOOLS_CRASH_SERVICE_H_
6 #define COMPONENTS_CRASH_CONTENT_TOOLS_CRASH_SERVICE_H_
7
8 #include <string>
9
10 #include "base/basictypes.h"
11 #include "base/files/file_path.h"
12 #include "base/synchronization/lock.h"
13
14 namespace google_breakpad {
15
16 class CrashReportSender;
17 class CrashGenerationServer;
18 class ClientInfo;
19
20 }
21
22 namespace breakpad {
23
24 // This class implements an out-of-process crash server. It uses breakpad's
25 // CrashGenerationServer and CrashReportSender to generate and then send the
26 // crash dumps. Internally, it uses OS specific pipe to allow applications to
27 // register for crash dumps and later on when a registered application crashes
28 // it will signal an event that causes this code to wake up and perform a
29 // crash dump on the signaling process. The dump is then stored on disk and
30 // possibly sent to the crash2 servers.
31 class CrashService {
32 public:
33 CrashService();
34 ~CrashService();
35
36 // Starts servicing crash dumps. Returns false if it failed. Do not use
37 // other members in that case. |operating_dir| is where the CrashService
38 // should store breakpad's checkpoint file. |dumps_path| is the directory
39 // where the crash dumps should be stored.
40 bool Initialize(const base::FilePath& operating_dir,
41 const base::FilePath& dumps_path);
42
43 // Command line switches:
44 //
45 // --max-reports=<number>
46 // Allows to override the maximum number for reports per day. Normally
47 // the crash dumps are never sent so if you want to send any you must
48 // specify a positive number here.
49 static const char kMaxReports[];
50 // --no-window
51 // Does not create a visible window on the desktop. The window does not have
52 // any other functionality other than allowing the crash service to be
53 // gracefully closed.
54 static const char kNoWindow[];
55 // --reporter=<string>
56 // Allows to specify a custom string that appears on the detail crash report
57 // page in the crash server. This should be a 25 chars or less string.
58 // The default tag if not specified is 'crash svc'.
59 static const char kReporterTag[];
60 // --dumps-dir=<directory-path>
61 // Override the directory to which crash dump files will be written.
62 static const char kDumpsDir[];
63 // --pipe-name=<string>
64 // Override the name of the Windows named pipe on which we will
65 // listen for crash dump request messages.
66 static const char kPipeName[];
67
68 // Returns number of crash dumps handled.
69 int requests_handled() const {
70 return requests_handled_;
71 }
72 // Returns number of crash clients registered.
73 int clients_connected() const {
74 return clients_connected_;
75 }
76 // Returns number of crash clients terminated.
77 int clients_terminated() const {
78 return clients_terminated_;
79 }
80
81 // Starts the processing loop. This function does not return unless the
82 // user is logging off or the user closes the crash service window. The
83 // return value is a good number to pass in ExitProcess().
84 int ProcessingLoop();
85
86 private:
87 static void OnClientConnected(void* context,
88 const google_breakpad::ClientInfo* client_info);
89
90 static void OnClientDumpRequest(
91 void* context,
92 const google_breakpad::ClientInfo* client_info,
93 const std::wstring* file_path);
94
95 static void OnClientExited(void* context,
96 const google_breakpad::ClientInfo* client_info);
97
98 // This routine sends the crash dump to the server. It takes the sending_
99 // lock when it is performing the send.
100 static unsigned long __stdcall AsyncSendDump(void* context);
101
102 // Returns the security descriptor which access to low integrity processes
103 // The caller is supposed to free the security descriptor by calling
104 // LocalFree.
105 PSECURITY_DESCRIPTOR GetSecurityDescriptorForLowIntegrity();
106
107 google_breakpad::CrashGenerationServer* dumper_;
108 google_breakpad::CrashReportSender* sender_;
109
110 // the extra tag sent to the server with each dump.
111 std::wstring reporter_tag_;
112
113 // clients serviced statistics:
114 int requests_handled_;
115 int requests_sent_;
116 volatile long clients_connected_;
117 volatile long clients_terminated_;
118 base::Lock sending_;
119
120 DISALLOW_COPY_AND_ASSIGN(CrashService);
121 };
122
123 } // namespace breakpad
124
125 #endif // COMPONENTS_CRASH_CONTENT_TOOLS_CRASH_SERVICE_H_
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