Reference Guide

ZCOM C I/F Library Routines
ZCOMLOG (3X)
Chapter 4 183
ZCOMLOG (3X)
NAME zcomlog – Add a message to the ZCOM log file
SYNOPSIS
#include <zcom/zcomsys.h>
#include <zcom/zcomcall.h> /* if compiled with ANSI C (recommended) */
void zcomlog (error, msgno, narg [, desc, arg])
uint32 error;
int32 msgno;
uint8 narg;
uint32 desc;
uint32 arg;
DESCRIPTION Routine zcomlog creates a log record and passes it to the ZCOM message
log system, where the logged messages will be retrieved and processed by
the ZMLOG program. Before calling this routine, zcomlname(3X) should
be called to set up the logging program name for all subsequent log
records.
The log record created consists of the program name as specified in the
preceding zcomlname call, the message number msgno and the
associated arguments arg. This routine has a variable number of
arguments: the call argument pair “desc, arg” repeats for the number of
times specified by narg.
The libraries libzcom_c.a and libpthread.a must be linked into the calling
program by giving the options “-lzcom_c -lpthread” to cc(1) or ld(1).
Threads
Considerations
This routine may be called from a multi-threaded application using the
POSIX (1003.1c) kernel threads API package. This routine has the
following characteristics when called by a multi-threaded application:
cancellation point Thread cancellation can occur when a thread
calls this routine.
async-cancel unsafe The calling thread’s cancelability type must be
PTHREAD_CANCEL_DEFERRED if
cancellation is enabled.