xref: /dragonfly/lib/libc/rpc/svc_run.c (revision 25a2db75)
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  * $NetBSD: svc_run.c,v 1.17 2000/07/06 03:10:35 christos Exp $
32  * $FreeBSD: src/lib/libc/rpc/svc_run.c,v 1.20 2006/02/27 22:10:59 deischen Exp $
33  * $DragonFly: src/lib/libc/rpc/svc_run.c,v 1.4 2005/11/13 12:27:04 swildner Exp $
34  */
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 "reentrant.h"
42 #include <err.h>
43 #include <errno.h>
44 #include <rpc/rpc.h>
45 #include <stdio.h>
46 #include <string.h>
47 #include <unistd.h>
48 #include "un-namespace.h"
49 
50 #include <rpc/rpc.h>
51 #include "rpc_com.h"
52 #include "mt_misc.h"
53 
54 void
55 svc_run(void)
56 {
57 	fd_set readfds, cleanfds;
58 	struct timeval timeout;
59 
60 	timeout.tv_sec = 30;
61 	timeout.tv_usec = 0;
62 
63 	for (;;) {
64 		rwlock_rdlock(&svc_fd_lock);
65 		readfds = svc_fdset;
66 		cleanfds = svc_fdset;
67 		rwlock_unlock(&svc_fd_lock);
68 		switch (_select(svc_maxfd+1, &readfds, NULL, NULL, &timeout)) {
69 		case -1:
70 			FD_ZERO(&readfds);
71 			if (errno == EINTR) {
72 				continue;
73 			}
74 			_warn("svc_run: - select failed");
75 			return;
76 		case 0:
77 			__svc_clean_idle(&cleanfds, 30, FALSE);
78 			continue;
79 		default:
80 			svc_getreqset(&readfds);
81 		}
82 	}
83 }
84 
85 /*
86  *      This function causes svc_run() to exit by telling it that it has no
87  *      more work to do.
88  */
89 void
90 svc_exit(void)
91 {
92 	rwlock_wrlock(&svc_fd_lock);
93 	FD_ZERO(&svc_fdset);
94 	rwlock_unlock(&svc_fd_lock);
95 }
96