Xinu7/man/man2/psend.doc

PSEND(2)            Xinu Programmer's Manual             PSEND(2)



NAME
     psend - send a message to a port

SYNOPSIS
     int psend(portid, message)
     int portid;
     char *message;

DESCRIPTION
     _P_s_e_n_d adds the pointer _m_e_s_s_a_g_e to the port _p_o_r_t_i_d. If suc-
     cessful, _p_s_e_n_d returns OK; it returns SYSERR if _p_o_r_t_i_d is
     invalid.  Note that only a pointer, not the entire message,
     is enqueued, and that psend may return to the caller before
     the receiver has consumed the message.

     If the port is full at the time of the call, the sending
     process will be blocked until space is available in the port
     for the message.

SEE ALSO
     pcount(2), pcreate(2), pdelete(2), preceive(2), preset(2)


































Version 6b               Printed 1/12/87                        1