pcp

The logger PMDA supports multiple clients and multiple logfiles.

• src/pmdas/logger/logger.c: Changed to support dynamic metrics for logfile data, which enables multiple client/multiple logfile support.
• src/pmdas/logger/event.c: Changes to support multiple clients and multiple logfiles. Abstracted the interface a bit.
• src/pmdas/logger/event.h: Moved 'struct LogfileData' definition here from logger.c. Removed event_cleanup() declaration.
• src/pmdas/logger/help: Updated.
• src/pmdas/logger/pmns: Make 'perfile' the start of the dynamic metrics.
• src/pmdas/logger/GNUmakefile.in: Make logger.o depend on domain.h.