centos man page for __pmopenlog

Query: __pmopenlog

OS: centos

Section: 3

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

PMOPENLOG(3)						     Library Functions Manual						      PMOPENLOG(3)

NAME
__pmOpenLog - create a log file for diagnostics and debug output
C SYNOPSIS
#include <pcp/pmapi.h> #include <pcp/impl.h> FILE *__pmOpenLog(const char *progname, const char *logname, FILE *oldstream, int *status); cc ... -lpcp
DESCRIPTION
__pmOpenLog reassigns the standard I/O stream oldstream to be associated with the file logname. If it already exists, logname will be re- moved and recreated if possible (to ensure correct ownership and permissions from the caller to __pmOpenLog). On return, the function value is the new standard I/O stream. In the event of an error, this will be oldstream unchanged and status will be 0. For success, status is 1, a standard preamble is written to logname Log for progname on hostname started date and time and an atexit(3) handler is installed to write the postscript message to logname Log finished date and time when the processes exits. progname is only used to annotate messages.
SEE ALSO
atexit(3) and freopen(3). Performance Co-Pilot PCP PMOPENLOG(3)
Related Man Pages
pmgetconfig(3) - centos
pmdaopenlog(3) - centos
pmiwrite(3) - centos
perror(2) - plan9
logname(1) - osf1
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