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Logger Class

Encapsulates system logging services using libsimpleio.
Inheritance Hierarchy
System.DiagnosticsTraceListener
  IO.Objects.SimpleIO.syslogLogger

Namespace: IO.Objects.SimpleIO.syslog
Assembly: libsimpleio (in libsimpleio.dll) Version: 2.2025.76.2
Syntax
C#
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public class Logger : TraceListener

The Logger type exposes the following members.

Constructors
 NameDescription
Public methodLogger Constructor for a logging object that uses the Linux syslog service.
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Methods
 NameDescription
Public methodError(String) Log an error message.
Public methodError(String, Int32) Log an error message, including an errno error string.
Public methodNote Log a notification message.
Public methodWarning Log a warning message.
Public methodWrite Trace interface method for posting a message.
Public methodWriteLine Trace interface method for posting a message.
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Fields
 NameDescription
Public fieldStatic memberLOG_ALERT Alert condition message.
Public fieldStatic memberLOG_AUTH Authentication facility.
Public fieldStatic memberLOG_CRIT Critical condition message.
Public fieldStatic memberLOG_DAEMON System daemon/background process facility.
Public fieldStatic memberLOG_DEBUG Debug message.
Public fieldStatic memberLOG_EMERG Emergency condition message.
Public fieldStatic memberLOG_ERR Error message.
Public fieldStatic memberLOG_INFO Informational message.
Public fieldStatic memberLOG_LOCAL0 Locally defined facility.
Public fieldStatic memberLOG_LOCAL1 Locally defined facility.
Public fieldStatic memberLOG_LOCAL2 Locally defined facility.
Public fieldStatic memberLOG_LOCAL3 Locally defined facility.
Public fieldStatic memberLOG_LOCAL4 Locally defined facility.
Public fieldStatic memberLOG_LOCAL5 Locally defined facility.
Public fieldStatic memberLOG_LOCAL6 Locally defined facility.
Public fieldStatic memberLOG_LOCAL7 Locally defined facility.
Public fieldStatic memberLOG_MAIL Mail subsystem facility.
Public fieldStatic memberLOG_NDELAY Open the connection to the syslog service immediately. Recommended.
Public fieldStatic memberLOG_NOTICE Normal condition message.
Public fieldStatic memberLOG_ODELAY Do not open the connection to the syslog service before logging the first message. Not recommended.
Public fieldStatic memberLOG_PERROR Write message to both syslog service AND stderr.
Public fieldStatic memberLOG_PID Prepend the caller's process ID to the message.
Public fieldStatic memberLOG_USER User program facility. Use LOG_LOCALx instead.
Public fieldStatic memberLOG_WARNING Warning message.
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Remarks
An instance of this class can be used either standalone or as a System.Diagnostics.TraceListener. The static methods Systems.Diagnostics.Trace.Write() and Systems.Diagnostics.Trace.WriteIf() most naturally fit the Linux syslog facility.
Example
C#
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var log = new IO.Objects.SimpleIO.syslog.Logger();
log.Note("Hello, Syslog!");

System.Diagnostics.Trace.Listeners.Clear();
System.Diagnostics.Trace.Listeners.Add(log);
System.Diagnostics.Trace.Write("Hello, Trace!");
See Also