ZCOM C I/F Library Routines

ZCOMERROR (3X)

 

 

ZCOMERROR (3X)

NAME

 

zcomerror – Return a formatted ZCOM error message

SYNOPSIS

 

 

#include

<zcom/zcomsys.h>

 

#include

<zcom/zcomcall.h> /* if compiled with ANSI C (recommended) */

char

*zcomerror(err)

 

int32

err;

 

 

Description

Routine zcomerror returns a character string containing error text

 

 

associated with an error number returned through use of the ZCOM

 

 

library calls. It works in a similar fashion to zcomstatus, however, it has

 

 

only one parameter passed in the call.

 

 

The return character string can be up to 31 bytes in length, plus a

 

 

terminating zero.

 

 

 

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

 

This routine may be called from a multi-threaded application using the

Considerations

POSIX (1003.1c) kernel threads API package. This routine has the

 

 

following characteristics when called by a multi-threaded application:

 

 

not a cancellation

Thread cancellation will not occur when a

 

 

point

thread is calling this routine.

 

 

async-cancel unsafe

The calling thread’s cancelability type must

 

 

 

be PTHREAD_CANCEL_DEFERRED if

 

 

 

cancellation is enabled.

 

 

async-signal unsafe

It cannot be called from a signal handler.

 

 

fork unsafe

It cannot be called by a child process after

 

 

 

fork(2) but before exec(2).

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Chapter 4