svc_run.c revision 71579 
1/*
2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part.  Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user.
8 *
9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
12 *
13 * Sun RPC is provided with no support and without any obligation on the
14 * part of Sun Microsystems, Inc. to assist in its use, correction,
15 * modification or enhancement.
16 *
17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
20 *
21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22 * or profits or other special, indirect and consequential damages, even if
23 * Sun has been advised of the possibility of such damages.
24 *
25 * Sun Microsystems, Inc.
26 * 2550 Garcia Avenue
27 * Mountain View, California  94043
28 */
29
30#if defined(LIBC_SCCS) && !defined(lint)
31/*static char *sccsid = "from: @(#)svc_run.c 1.1 87/10/13 Copyr 1984 Sun Micro";*/
32/*static char *sccsid = "from: @(#)svc_run.c	2.1 88/07/29 4.0 RPCSRC";*/
33static char *rcsid = "$FreeBSD: head/lib/libc/rpc/svc_run.c 71579 2001-01-24 13:01:12Z deischen $";
34#endif
35
36/*
37 * This is the rpc server side idle loop
38 * Wait for input, call server program.
39 */
40#include "namespace.h"
41#include <rpc/rpc.h>
42#include <stdio.h>
43#include <sys/errno.h>
44#include <sys/types.h>
45#include <sys/time.h>
46#include <unistd.h>
47#include <stdlib.h>
48#include <string.h>
49#include "un-namespace.h"
50
51extern int __svc_fdsetsize;
52extern fd_set *__svc_fdset;
53
54void
55svc_run()
56{
57	fd_set *fds;
58
59	for (;;) {
60		if (__svc_fdset) {
61			int bytes = howmany(__svc_fdsetsize, NFDBITS) *
62				sizeof(fd_mask);
63			fds = (fd_set *)malloc(bytes);
64			memcpy(fds, __svc_fdset, bytes);
65		} else
66			fds = NULL;
67		switch (_select(svc_maxfd + 1, fds, NULL, NULL,
68				(struct timeval *)0)) {
69		case -1:
70			if (errno == EINTR) {
71				if (fds)
72					free(fds);
73				continue;
74			}
75			perror("svc_run: - select failed");
76			if (fds)
77				free(fds);
78			return;
79		case 0:
80			if (fds)
81				free(fds);
82			continue;
83		default:
84			/* if fds == NULL, _select() can't return a result */
85			svc_getreqset2(fds, svc_maxfd + 1);
86			free(fds);
87		}
88	}
89}
90