[pclasses-devel] Logging framework

[Christian P. <cp...@se...>]

Hi List !

I've added the re-worked logging framework from P1 to P2's CVS.

LogMessage: Log message class (stores severity, timestamp and log msg).
LogChannel: Log message channel/stream. Output's messages to targets 
registered with the LogChannel. Keeps per-thread stream-state.
LogTarget: The LogTarget output's the LogMessage's (zB. to file, socket, ...).
LogManager: Logging Manager, makes life easier, keeps track of LogChannels and 
LogTargets.

Client usage:

-- snip --
// get instance to the LogManager
LogManager& mgr = LogManager::instance();

// add a global log channel
LogChannel* globalChan = mgr.addChannel("global");

// add a LogTarget of type ConsoleLogTarget to the globalChan LogChannel
// The LogTarget is created by the PluginManager and owned by the LogManager.
LogTarget* target = mgr.addTarget(globalChan, "console", "ConsoleLogTarget");
if(!target) return;

// open target
target->open(URL("stdin://"));

// we may now send messages to the LogChannel ...
(*globalChan) << "Hello world!" << endl;

// change message level to Critical and send next log message
(*globalChan)(LogMessage::Critical) << "Bush sucks!" << endl;

mgr("global") << "Even simpler ... but slower" << endl;
-- snip --

Of course, the client is allowed to directly add LogTargets to LogChannels. 
However, the LogManager does not care about deleting manually added 
LogTargets.

The first LogTarget plugin is already in CVS:  
ConsoleLogTarget [alias: Console]

Have a nice day!


Greetings,
Christian