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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "base/debug/stack_trace.h" | 5 #include "base/debug/stack_trace.h" |
6 #include "base/syslog_logging.h" | 6 #include "base/syslog_logging.h" |
7 | 7 |
8 #if defined(OS_WIN) | 8 #if defined(OS_WIN) |
| 9 #include "base/bind.h" |
| 10 #include "base/callback_helpers.h" |
9 #include "base/win/eventlog_messages.h" | 11 #include "base/win/eventlog_messages.h" |
10 | 12 |
11 #include <windows.h> | 13 #include <windows.h> |
12 #elif defined(OS_LINUX) | 14 #elif defined(OS_LINUX) |
13 #include <syslog.h> | 15 #include <syslog.h> |
14 #endif | 16 #endif |
15 | 17 |
16 #include <cstring> | 18 #include <cstring> |
17 #include <ostream> | 19 #include <ostream> |
18 #include <string> | 20 #include <string> |
19 | 21 |
20 namespace logging { | 22 namespace logging { |
21 | 23 |
| 24 #if defined(OS_WIN) |
| 25 |
| 26 namespace { |
| 27 std::string* g_event_source_name = nullptr; |
| 28 } |
| 29 |
| 30 void SetEventSourceName(const std::string& name) { |
| 31 DCHECK_EQ(nullptr, g_event_source_name); |
| 32 g_event_source_name = new std::string(name); |
| 33 } |
| 34 #endif // defined(OS_WIN) |
| 35 |
22 EventLogMessage::EventLogMessage(const char* file, | 36 EventLogMessage::EventLogMessage(const char* file, |
23 int line, | 37 int line, |
24 LogSeverity severity) | 38 LogSeverity severity) |
25 : log_message_(file, line, severity) { | 39 : log_message_(file, line, severity) { |
26 } | 40 } |
27 | 41 |
28 EventLogMessage::~EventLogMessage() { | 42 EventLogMessage::~EventLogMessage() { |
29 #if defined(OS_WIN) | 43 #if defined(OS_WIN) |
30 const char kEventSource[] = "chrome"; | 44 // If g_event_source_name is nullptr (which it is per default) SYSLOG will |
31 HANDLE event_log_handle = RegisterEventSourceA(NULL, kEventSource); | 45 // degrade gracefully to regular LOG. If you see this happening most probably |
| 46 // you are using SYSLOG before you called SetEventSourceName. |
| 47 if (g_event_source_name == nullptr) |
| 48 return; |
| 49 |
| 50 HANDLE event_log_handle = |
| 51 RegisterEventSourceA(NULL, g_event_source_name->c_str()); |
32 if (event_log_handle == NULL) { | 52 if (event_log_handle == NULL) { |
33 stream() << " !!NOT ADDED TO EVENTLOG!!"; | 53 stream() << " !!NOT ADDED TO EVENTLOG!!"; |
34 return; | 54 return; |
35 } | 55 } |
36 | 56 |
| 57 base::ScopedClosureRunner auto_deregister( |
| 58 base::Bind(base::IgnoreResult(&DeregisterEventSource), event_log_handle)); |
37 std::string message(log_message_.str()); | 59 std::string message(log_message_.str()); |
38 WORD log_type = EVENTLOG_ERROR_TYPE; | 60 WORD log_type = EVENTLOG_ERROR_TYPE; |
39 switch (log_message_.severity()) { | 61 switch (log_message_.severity()) { |
40 case LOG_INFO: | 62 case LOG_INFO: |
41 log_type = EVENTLOG_INFORMATION_TYPE; | 63 log_type = EVENTLOG_INFORMATION_TYPE; |
42 break; | 64 break; |
43 case LOG_WARNING: | 65 case LOG_WARNING: |
44 log_type = EVENTLOG_WARNING_TYPE; | 66 log_type = EVENTLOG_WARNING_TYPE; |
45 break; | 67 break; |
46 case LOG_ERROR: | 68 case LOG_ERROR: |
47 case LOG_FATAL: | 69 case LOG_FATAL: |
48 // The price of getting the stack trace is not worth the hassle for | 70 // The price of getting the stack trace is not worth the hassle for |
49 // non-error conditions. | 71 // non-error conditions. |
50 base::debug::StackTrace trace; | 72 base::debug::StackTrace trace; |
51 message.append(trace.ToString()); | 73 message.append(trace.ToString()); |
52 log_type = EVENTLOG_ERROR_TYPE; | 74 log_type = EVENTLOG_ERROR_TYPE; |
53 break; | 75 break; |
54 } | 76 } |
55 LPCSTR strings[1] = {message.data()}; | 77 LPCSTR strings[1] = {message.data()}; |
56 if (!ReportEventA(event_log_handle, log_type, BROWSER_CATEGORY, | 78 if (!ReportEventA(event_log_handle, log_type, BROWSER_CATEGORY, |
57 MSG_LOG_MESSAGE, NULL, 1, 0, strings, NULL)) { | 79 MSG_LOG_MESSAGE, NULL, 1, 0, strings, NULL)) { |
58 stream() << " !!NOT ADDED TO EVENTLOG!!"; | 80 stream() << " !!NOT ADDED TO EVENTLOG!!"; |
59 } | 81 } |
60 DeregisterEventSource(event_log_handle); | |
61 #elif defined(OS_LINUX) | 82 #elif defined(OS_LINUX) |
62 const char kEventSource[] = "chrome"; | 83 const char kEventSource[] = "chrome"; |
63 openlog(kEventSource, LOG_NOWAIT | LOG_PID, LOG_USER); | 84 openlog(kEventSource, LOG_NOWAIT | LOG_PID, LOG_USER); |
64 // We can't use the defined names for the logging severity from syslog.h | 85 // We can't use the defined names for the logging severity from syslog.h |
65 // because they collide with the names of our own severity levels. Therefore | 86 // because they collide with the names of our own severity levels. Therefore |
66 // we use the actual values which of course do not match ours. | 87 // we use the actual values which of course do not match ours. |
67 // See sys/syslog.h for reference. | 88 // See sys/syslog.h for reference. |
68 int priority = 3; | 89 int priority = 3; |
69 switch (log_message_.severity()) { | 90 switch (log_message_.severity()) { |
70 case LOG_INFO: | 91 case LOG_INFO: |
71 priority = 6; | 92 priority = 6; |
72 break; | 93 break; |
73 case LOG_WARNING: | 94 case LOG_WARNING: |
74 priority = 4; | 95 priority = 4; |
75 break; | 96 break; |
76 case LOG_ERROR: | 97 case LOG_ERROR: |
77 priority = 3; | 98 priority = 3; |
78 break; | 99 break; |
79 case LOG_FATAL: | 100 case LOG_FATAL: |
80 priority = 2; | 101 priority = 2; |
81 break; | 102 break; |
82 } | 103 } |
83 syslog(priority, "%s", log_message_.str().c_str()); | 104 syslog(priority, "%s", log_message_.str().c_str()); |
84 closelog(); | 105 closelog(); |
85 #endif // defined(OS_WIN) | 106 #endif // defined(OS_WIN) |
86 } | 107 } |
87 | 108 |
88 } // namespace logging | 109 } // namespace logging |
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