table of contents
PMOPENLOG(3) | Library Functions Manual | PMOPENLOG(3) |
NAME¶
__pmOpenLog - create a log file for diagnostics and debug outputC SYNOPSIS¶
#include <pcp/pmapi.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 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 timeSEE ALSO¶
atexit(3) and freopen(3).PCP | Performance Co-Pilot |