Home

jachLog is a pure pascal, flexible, extensible and lightweight library to add advanced logging capabilities to your Delphi applications.

The library supports multithreaded applications and can be itself multithreaded, which helps minimize the impact it have on the performance of mission critical applications.

The main logging class provide methods to add log records in a simple, yet powerful manner.

To learn how to use the library, read:

• Get started page.
• Log levels and filter by level - Learn about the standard meaning of the Severity levels
• Topics and filter by level by topic
• Debug verbosity
• Multiple log destinations
• Performance
  • Caching log messages
  • Writing to destinations using multiple threads

Here you'll find documentation for the units and classes:

• ujachLogMgr
  • TjachLog
  • TjachLogWriteCoordinatorThread
  • TjachLogWriterThread
• ujachLogClasses
  • TjachLogTopicIndex
  • TLogSeverity
  • TLogLevel
  • IjachLogEntry
  • TjachLogEntryList
  • TjachLogWriter
  • TLogCache
• ujachLogToDisk
  • TjachLogToDisk
• ujachLogToConsole
  • TjachLogToConsole
• ujachLogAuto
  • jachLog global variable
  • function GetLogDiskWriter
  • function GetLogConsoleWriter

Demos:

Recomended topics:

• Severity levels