xref: /dragonfly/lib/libc/rpc/svc_run.c (revision 2cd2d2b5)
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  * @(#)svc_run.c 1.1 87/10/13 Copyr 1984 Sun Micro
30  * @(#)svc_run.c	2.1 88/07/29 4.0 RPCSRC
31  * $FreeBSD: src/lib/libc/rpc/svc_run.c,v 1.10 1999/08/28 00:00:49 peter Exp $
32  * $DragonFly: src/lib/libc/rpc/svc_run.c,v 1.2 2003/06/17 04:26:45 dillon Exp $
33  */
34 
35 /*
36  * This is the rpc server side idle loop
37  * Wait for input, call server program.
38  */
39 #include <rpc/rpc.h>
40 #include <stdio.h>
41 #include <sys/errno.h>
42 #include <sys/types.h>
43 #include <sys/time.h>
44 #include <unistd.h>
45 #include <stdlib.h>
46 #include <string.h>
47 
48 extern int __svc_fdsetsize;
49 extern fd_set *__svc_fdset;
50 
51 void
52 svc_run()
53 {
54 	fd_set *fds;
55 
56 	for (;;) {
57 		if (__svc_fdset) {
58 			int bytes = howmany(__svc_fdsetsize, NFDBITS) *
59 				sizeof(fd_mask);
60 			fds = (fd_set *)malloc(bytes);
61 			memcpy(fds, __svc_fdset, bytes);
62 		} else
63 			fds = NULL;
64 		switch (select(svc_maxfd + 1, fds, NULL, NULL,
65 				(struct timeval *)0)) {
66 		case -1:
67 			if (errno == EINTR) {
68 				if (fds)
69 					free(fds);
70 				continue;
71 			}
72 			perror("svc_run: - select failed");
73 			if (fds)
74 				free(fds);
75 			return;
76 		case 0:
77 			if (fds)
78 				free(fds);
79 			continue;
80 		default:
81 			/* if fds == NULL, select() can't return a result */
82 			svc_getreqset2(fds, svc_maxfd + 1);
83 			free(fds);
84 		}
85 	}
86 }
87