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A streambuffer, logging via syslog
logbuf can be used, if you want to use syslog for logging but don't want to change all your nice C++-style output statements in your code.
Here is an example showing the usage of logbuf:
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	openlog("myDaemon", LOG_CONS|LOG_PID, LOG_DAEMON);
	logbuf ebuf(LOG_ERR, 2);
	ostream lerr(&ebuf);
	... some code ...
	lerr << "Whoops, got an error" << endl;
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The second optional argument of the constructor can be used to switch the output destination between syslog and some file. If it is omitted or set to -1, logging can be switched on or off. The initial state is on.
| logbuf (int loglevel, int fd = -1) | logbuf | 
Constructs a new instance.
Parameters:
| loglevel | The log level for this instance. see syslog(3) for symbolic names to use. | 
| fd | An optional file descriptor to use if switched off. | 
| void  setOn (bool newstate) | setOn | 
Switches loggin on or off.
Parameters:
| newstate | The desired state. | 
| void  setLevel (int newlevel) | setLevel | 
Modifies the loglevel of this instance.
Parameters:
| newlevel | The new loglevel. | 
| bool  on () | on | 
Retrieve the current state.
Returns: The current state.
| int  level () | level | 
Retrieves the current loglevel.
Returns: The current loglevel.
| int  overflow (int c = EOF) | overflow | 
Called by the associated ostream to write a character. Stores the character in a buffer and calls syslog(level, buffer) whenever a LF is seen.
| Generated by: rrt on drom on Mon Nov 26 16:06:15 2007, using kdoc 2.0a54. |