ZCOM C I/F Library Routines
ZSET_RCVR (3X)
receiver of the incoming messages. Use of this feature does not require that a primary receiver be defined. For every terminal, each receiver mode (except mode ZcOUTB_MLTPLX) allows a maximum of ZcMAX_SHARED_RCVRS (64) program ZLUs to be set with action ZcADD_SHARED.
An application program can indicate that it no longer wishes to receive messages by issuing a zset_rcvr() call with the same parameters as those specified in the original zset_rcvr() request, and setting the action parameter to ZcDEL_PRIMARY or ZcDEL_SHARED.
The libraries libzcom_c.a and libpthread.a must be linked into the calling program by giving the options
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