rrpc_are_you_there.3ncs

来自「<B>Digital的Unix操作系统VAX 4.2源码</B>」· 3NCS 代码 · 共 54 行

.TH rrpc_are_you_there 
.SH Name
rrpc_are_you_there \- check whether a server is answering requests
.SH Format
.NXR ".NXR "Remote Remote Procedure Call Interface "rrpc_are_you_there"
.nf
\fB#include <rrpc.h>\fR
.sp
\fBvoid rrpc_$are_you_there(\fR \fIhandle\fB,\fR *\fIstatus\fB)\fR
.nf
\fBhandle_t \fIhandle\fP;
\fBstatus_$t *\fIstatus\fP;
.fi
.SH Arguments
.TP 20
\fIhandle\fR
A remote procedure call (RPC) handle.
.TP 20
\fIstatus\fR
The completion status.
.SH Description
The 
.PN rrpc_$are_you_there
call checks whether a server is answering requests.
.SH Restrictions
On the client side, because of the way the
.PN rrpc_
calls are defined and implemented
in the run-time library 
.PN libnck.a ,
you must explicitly call
into the entry point vector table for the 
.PN rrpc_
interface to
send an 
.PN rrpc_
request across the network. The
following is an example of a call that works
as desired.
.EX
(*rrpc_$client_epv.rrpc_$are_you_there)(handle, &status);
.EE
.PP
The server side stub routine calls the entry point 
.PN rrpc_$are_you_there
on behalf of the client.  The results of the call are then
passed back to the client.
.SH Files
.PN /usr/include/idl/c/rrpc.h
.br
.PN /usr/include/idl/rrpc.idl
.SH See Also
intro(3ncs)