ACC Programmer's Reference Guide

214 Chapter4

ZCOM C I/F Library Routines

ZGET_SHRCVR_LIST (3X)

zget_shrcvr_list – Get list of current shared receivers

#include <zcom/zcomsys.h>

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

int32 zget_shrcvr_list (zap, mode, mlen, zrcvrs)

zaddr_type *zap;

uint32 mode;

int32 mlen;

zaddr_type zrcvrs[];

DESCRIPTION Routine zget_shrcvr_list is used to retrieve the contents of a linked list of

shared receivers from the ZCOM subsystem tables. Depending on the

mode selected, and terminal specified (if needed), this call will return an

array of shared receivers from one of the ZCOM tables (DSC Events,

Node Status Receivers, PTT Receivers, or LTT Receivers).

The libraries libzcom_c.a and libpthread.a must be linked into thecalling

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.

async-signal unsafe It cannot be called from a signal handler.