RPC -WR5441 Dokumentacja Pobierz pdf (Strona 34)

Page 34 Remote Procedure Call Programming Guide

fprintf(stderr, "client got callback\n");

if (!svc_sendreply(transp, xdr_void, 0)) {

fprintf(stderr, "err: exampleprog");

return (1);

}

* server

#include <stdio.h>

#include <rpc/rpc.h>

#include <sys/signal.h>

char *getnewprog();

char hostname[256];

int docallback();

int pnum; /* program number for callback routine */

main()

{

gethostname(hostname, sizeof(hostname));

registerrpc(EXAMPLEPROG, EXAMPLEVERS,

EXAMPLEPROC_CALLBACK, getnewprog, xdr_int, xdr_void);

fprintf(stderr, "server going into svc_run\n");

signal(SIGALRM, docallback);

alarm(10);

svc_run();

fprintf(stderr, "Error: svc_run shouldn’t return\n");

}

char *

getnewprog(pnump)

char *pnump;

{

pnum = *(int *)pnump;

return NULL;

}

docallback()

{

int ans;

ans = callrpc(hostname, pnum, 1, 1, xdr_void, 0,

xdr_void, 0);

if (ans != 0) {

fprintf(stderr, "server: ");

clnt_perrno(ans);

fprintf(stderr, "\n");

}

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RPC -WR5441 Dokumentacja Strona 34