2 Copyright (c) 2004-2009, John Hurst
5 Redistribution and use in source and binary forms, with or without
6 modification, are permitted provided that the following conditions
8 1. Redistributions of source code must retain the above copyright
9 notice, this list of conditions and the following disclaimer.
10 2. Redistributions in binary form must reproduce the above copyright
11 notice, this list of conditions and the following disclaimer in the
12 documentation and/or other materials provided with the distribution.
13 3. The name of the author may not be used to endorse or promote products
14 derived from this software without specific prior written permission.
16 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 \brief message logging API
35 #include <sys/types.h>
42 #define getpid GetCurrentProcessId
47 //------------------------------------------------------------------------------------------
51 Kumu::ILogSink::vLogf(LogType_t type, const char* fmt, va_list* list)
53 char buf[MaxLogLength];
54 vsnprintf(buf, MaxLogLength, fmt, *list);
56 WriteEntry(LogEntry(getpid(), type, buf));
59 //------------------------------------------------------------------------------------------
62 static Kumu::Mutex s_DefaultLogSinkLock;
63 static Kumu::ILogSink* s_DefaultLogSink = 0;
64 static Kumu::StdioLogSink s_StderrLogSink;
68 Kumu::SetDefaultLogSink(ILogSink* Sink)
70 AutoMutex L(s_DefaultLogSinkLock);
71 s_DefaultLogSink = Sink;
74 // Returns the internal default sink.
76 Kumu::DefaultLogSink()
78 AutoMutex L(s_DefaultLogSinkLock);
80 if ( s_DefaultLogSink == 0 )
81 s_DefaultLogSink = &s_StderrLogSink;
83 return *s_DefaultLogSink;
87 //------------------------------------------------------------------------------------------
91 Kumu::EntryListLogSink::WriteEntry(const LogEntry& Entry)
95 if ( Entry.TestFilter(m_filter) )
96 m_Target.push_back(Entry);
99 //------------------------------------------------------------------------------------------
103 Kumu::StdioLogSink::WriteEntry(const LogEntry& Entry)
108 if ( Entry.TestFilter(m_filter) )
110 Entry.CreateStringWithOptions(buf, m_options);
111 fputs(buf.c_str(), m_stream);
115 //---------------------------------------------------------------------------------
120 Kumu::WinDbgLogSink::WriteEntry(const LogEntry& Entry)
125 if ( Entry.TestFilter(m_filter) )
127 Entry.CreateStringWithOptions(buf, m_options);
128 ::OutputDebugString(buf.c_str());
133 //------------------------------------------------------------------------------------------
139 Kumu::StreamLogSink::WriteEntry(const LogEntry& Entry)
144 if ( Entry.TestFilter(m_filter) )
146 Entry.CreateStringWithOptions(buf, m_options);
147 write(m_fd, buf.c_str(), buf.size());
151 // foolin with symbols
152 //------------------------------------------------------------------------------------------
154 int const SYSLOG_ALERT = LOG_ALERT;
155 int const SYSLOG_CRIT = LOG_CRIT;
156 int const SYSLOG_ERR = LOG_ERR;
157 int const SYSLOG_WARNING = LOG_WARNING;
158 int const SYSLOG_NOTICE = LOG_NOTICE;
159 int const SYSLOG_INFO = LOG_INFO;
160 int const SYSLOG_DEBUG = LOG_DEBUG;
168 //------------------------------------------------------------------------------------------
170 Kumu::SyslogLogSink::SyslogLogSink(const std::string& source_name, int facility)
173 facility == LOG_DAEMON;
175 openlog(source_name.c_str(), LOG_CONS|LOG_NDELAY||LOG_PID, facility);
178 Kumu::SyslogLogSink::~SyslogLogSink()
185 Kumu::SyslogLogSink::WriteEntry(const LogEntry& Entry)
189 switch ( Entry.Type )
191 case Kumu::LOG_ALERT: priority = SYSLOG_ALERT; break;
192 case Kumu::LOG_CRIT: priority = SYSLOG_CRIT; break;
193 case Kumu::LOG_ERROR: priority = SYSLOG_ERR; break;
194 case Kumu::LOG_WARN: priority = SYSLOG_WARNING; break;
195 case Kumu::LOG_NOTICE: priority = SYSLOG_NOTICE; break;
196 case Kumu::LOG_INFO: priority = SYSLOG_INFO; break;
197 case Kumu::LOG_DEBUG: priority = SYSLOG_DEBUG; break;
202 if ( Entry.TestFilter(m_filter) )
204 syslog(priority, "%s", Entry.Msg.substr(0, Entry.Msg.size() - 1).c_str());
210 Kumu::SyslogNameToFacility(const std::string& facility_name)
212 if ( facility_name == "LOG_DAEMON" ) return LOG_DAEMON;
213 if ( facility_name == "LOG_LOCAL0" ) return LOG_LOCAL0;
214 if ( facility_name == "LOG_LOCAL1" ) return LOG_LOCAL1;
215 if ( facility_name == "LOG_LOCAL2" ) return LOG_LOCAL2;
216 if ( facility_name == "LOG_LOCAL3" ) return LOG_LOCAL3;
217 if ( facility_name == "LOG_LOCAL4" ) return LOG_LOCAL4;
218 if ( facility_name == "LOG_LOCAL5" ) return LOG_LOCAL5;
219 if ( facility_name == "LOG_LOCAL6" ) return LOG_LOCAL6;
220 if ( facility_name == "LOG_LOCAL7" ) return LOG_LOCAL7;
222 DefaultLogSink().Error("Unsupported facility name: %s, using default value LOG_DAEMON\n", facility_name.c_str());
228 //------------------------------------------------------------------------------------------
231 std::basic_ostream<char, std::char_traits<char> >&
232 Kumu::operator<<(std::basic_ostream<char, std::char_traits<char> >& strm, LogEntry const& Entry)
234 std::basic_ostringstream<char, std::char_traits<char> > s;
239 s << Entry.CreateStringWithOptions(buf, LOG_OPTION_ALL);
245 //------------------------------------------------------------------------------------------
250 Kumu::LogEntry::TestFilter(i32_t filter) const
255 if ( (filter & LOG_ALLOW_CRIT) == 0 )
260 if ( (filter & LOG_ALLOW_ALERT) == 0 )
265 if ( (filter & LOG_ALLOW_NOTICE) == 0 )
270 if ( (filter & LOG_ALLOW_ERROR) == 0 )
275 if ( (filter & LOG_ALLOW_WARN) == 0 )
280 if ( (filter & LOG_ALLOW_INFO) == 0 )
285 if ( (filter & LOG_ALLOW_DEBUG) == 0 )
296 Kumu::LogEntry::CreateStringWithOptions(std::string& out_buf, i32_t opt) const
304 if ( (opt & LOG_OPTION_TIMESTAMP) != 0 )
307 out_buf += Now.EncodeString(buf, 64);
310 if ( (opt & LOG_OPTION_PID) != 0 )
312 if ( ! out_buf.empty() ) out_buf += " ";
313 snprintf(buf, 64, "%d", PID);
317 if ( (opt & LOG_OPTION_TYPE) != 0 )
319 if ( ! out_buf.empty() ) out_buf += " ";
323 case LOG_CRIT: out_buf += "CRT"; break;
324 case LOG_ALERT: out_buf += "ALR"; break;
325 case LOG_NOTICE: out_buf += "NTC"; break;
326 case LOG_ERROR: out_buf += "ERR"; break;
327 case LOG_WARN: out_buf += "WRN"; break;
328 case LOG_INFO: out_buf += "INF"; break;
329 case LOG_DEBUG: out_buf += "DBG"; break;
330 default: out_buf += "DFL"; break;
334 out_buf.insert(0, "[");
345 Kumu::LogEntry::ArchiveLength() const
347 return sizeof(ui32_t)
348 + EventTime.ArchiveLength()
350 + sizeof(ui32_t) + Msg.size();
355 Kumu::LogEntry::Archive(Kumu::MemIOWriter* Writer) const
357 if ( ! Writer->WriteUi32BE(PID) ) return false;
358 if ( ! EventTime.Archive(Writer) ) return false;
359 if ( ! Writer->WriteUi32BE(Type) ) return false;
360 if ( ! ArchiveString(*Writer, Msg) ) return false;
366 Kumu::LogEntry::Unarchive(Kumu::MemIOReader* Reader)
368 if ( ! Reader->ReadUi32BE(&PID) ) return false;
369 if ( ! EventTime.Unarchive(Reader) ) return false;
370 if ( ! Reader->ReadUi32BE((ui32_t*)&Type) ) return false;
371 if ( ! UnarchiveString(*Reader, Msg) ) return false;