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& e)
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;
200 syslog(priority, "%s", e.Msg.substr(0, e.Msg.size() - 1).c_str());
205 Kumu::SyslogNameToFacility(const std::string& facility_name)
207 if ( facility_name == "LOG_DAEMON" ) return LOG_DAEMON;
208 if ( facility_name == "LOG_LOCAL0" ) return LOG_LOCAL0;
209 if ( facility_name == "LOG_LOCAL1" ) return LOG_LOCAL1;
210 if ( facility_name == "LOG_LOCAL2" ) return LOG_LOCAL2;
211 if ( facility_name == "LOG_LOCAL3" ) return LOG_LOCAL3;
212 if ( facility_name == "LOG_LOCAL4" ) return LOG_LOCAL4;
213 if ( facility_name == "LOG_LOCAL5" ) return LOG_LOCAL5;
214 if ( facility_name == "LOG_LOCAL6" ) return LOG_LOCAL6;
215 if ( facility_name == "LOG_LOCAL7" ) return LOG_LOCAL7;
217 DefaultLogSink().Error("Unsupported facility name: %s, using default value LOG_DAEMON\n", facility_name.c_str());
223 //------------------------------------------------------------------------------------------
226 std::basic_ostream<char, std::char_traits<char> >&
227 Kumu::operator<<(std::basic_ostream<char, std::char_traits<char> >& strm, LogEntry const& Entry)
229 std::basic_ostringstream<char, std::char_traits<char> > s;
234 s << Entry.CreateStringWithOptions(buf, LOG_OPTION_ALL);
240 //------------------------------------------------------------------------------------------
245 Kumu::LogEntry::TestFilter(i32_t filter) const
250 if ( (filter & LOG_ALLOW_CRIT) == 0 )
255 if ( (filter & LOG_ALLOW_ALERT) == 0 )
260 if ( (filter & LOG_ALLOW_NOTICE) == 0 )
265 if ( (filter & LOG_ALLOW_ERROR) == 0 )
270 if ( (filter & LOG_ALLOW_WARN) == 0 )
275 if ( (filter & LOG_ALLOW_INFO) == 0 )
280 if ( (filter & LOG_ALLOW_DEBUG) == 0 )
291 Kumu::LogEntry::CreateStringWithOptions(std::string& out_buf, i32_t opt) const
299 if ( (opt & LOG_OPTION_TIMESTAMP) != 0 )
302 out_buf += Now.EncodeString(buf, 64);
305 if ( (opt & LOG_OPTION_PID) != 0 )
307 if ( ! out_buf.empty() ) out_buf += " ";
308 snprintf(buf, 64, "%d", PID);
312 if ( (opt & LOG_OPTION_TYPE) != 0 )
314 if ( ! out_buf.empty() ) out_buf += " ";
318 case LOG_CRIT: out_buf += "CRT"; break;
319 case LOG_ALERT: out_buf += "ALR"; break;
320 case LOG_NOTICE: out_buf += "NTC"; break;
321 case LOG_ERROR: out_buf += "ERR"; break;
322 case LOG_WARN: out_buf += "WRN"; break;
323 case LOG_INFO: out_buf += "INF"; break;
324 case LOG_DEBUG: out_buf += "DBG"; break;
325 default: out_buf += "DFL"; break;
329 out_buf.insert(0, "[");
340 Kumu::LogEntry::ArchiveLength() const
342 return sizeof(ui32_t)
343 + EventTime.ArchiveLength()
345 + sizeof(ui32_t) + Msg.size();
350 Kumu::LogEntry::Archive(Kumu::MemIOWriter* Writer) const
352 if ( ! Writer->WriteUi32BE(PID) ) return false;
353 if ( ! EventTime.Archive(Writer) ) return false;
354 if ( ! Writer->WriteUi32BE(Type) ) return false;
355 if ( ! ArchiveString(*Writer, Msg) ) return false;
361 Kumu::LogEntry::Unarchive(Kumu::MemIOReader* Reader)
363 if ( ! Reader->ReadUi32BE(&PID) ) return false;
364 if ( ! EventTime.Unarchive(Reader) ) return false;
365 if ( ! Reader->ReadUi32BE((ui32_t*)&Type) ) return false;
366 if ( ! UnarchiveString(*Reader, Msg) ) return false;