Logging Mechanisms in Cocoa

FROM : JanakiRam
DATE : Thu Feb 07 20:15:25 2008

Hi All,

        I'm porting windows application to Mac using Cocoa. Now i need to
implement the Logging ( NSLog/printf's with some trace levels ) in Cocoa.
Can any one clarify my following queries.

        i) Are there any open source Logging Frameworks in Cocoa ?

        ii) If not , please provide some guidelines on implementing in it
using Cocoa/

        Please help me to make a progress in this. Thanks in Advance.

-JanakiRam.