SIMPLE SOLUTIONS

__PMOPENLOG(3) - man page online | library functions

Create a log file for diagnostics and debug output.

Chapter
PCP
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 removed and recreated if possible (to en‐ sure 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)
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__pmOpenLog(3) referred by
refer to atexit(3) | fopen(3)