Log's not updating as expected Post: 302966909

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pmc_flush_logfile

PMC_CONFIGURE_LOGFILE(3)				   BSD Library Functions Manual 				  PMC_CONFIGURE_LOGFILE(3)

NAME

     pmc_configure_logfile, pmc_flush_logfile, pmc_writelog, pmc_close_logfile -- log file management

LIBRARY

     Performance Counters Library (libpmc, -lpmc)

SYNOPSIS

     #include <pmc.h>

     int
     pmc_configure_logfile(int fd);

     int
     pmc_flush_logfile(void);

     int
     pmc_writelog(uint32_t userdata);

     int
     pmc_close_logfile(void);

DESCRIPTION

     The functions manage logging of hwpmc(4) events.

     Function pmc_configure_logfile() is used to turn on and turn off logging.	If argument fd is a valid file handle returned by a prior call to
     open(2) or socket(2) then performance events will be logged to the file corresponding to the specified handle.  If the value of argument fd
     is -1 then logging will be stopped after any pending data is flushed.

     Function pmc_flush_logfile() will force all log data queued inside the hwpmc(4) driver to be written out.

     Function pmc_writelog() will append a log entry containing the value of argument userdata to the log file.

     Function pmc_close_logfile() will flush all pending log data and close hwpmc(4)'s side of the stream.

RETURN VALUES

     Upon successful completion, the value 0 is returned; otherwise the value -1 is returned and the global variable errno is set to indicate the
     error.

ERRORS

     A call to pmc_configure_logfile() may fail with the following errors:

     [EAGAIN]		The hwpmc(4) driver was not able to create a helper process due to system limits being reached.

     [EBUSY]		Function pmc_configure_logfile() was called with a log file already configured.

     [EINVAL]		Function pmc_configure_logfile() was called with an argument of -1 without a log file being previously configured.

     [ENOMEM]		The system encountered a memory shortage when servicing this request.

     A call to pmc_flush_logfile() may fail with the following errors:

     [EINVAL]		Function pmc_flush_logfile() was called without a log file being previously configured.

     A call to pmc_writelog() may fail with the following errors:

     [EINVAL]		Function pmc_writelog() was called without a log file being previously configured.

     [ENOMEM]		The system encountered a memory shortage when servicing this request.

SEE ALSO

     pmc(3), hwpmc(4)

BSD
								 November 24, 2007							       BSD