1 /* $NetBSD: svc_run.c,v 1.17 2000/07/06 03:10:35 christos Exp $ */
2
3 /*-
4 * SPDX-License-Identifier: BSD-3-Clause
5 *
6 * Copyright (c) 2009, Sun Microsystems, Inc.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are met:
11 * - Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 * - Redistributions in binary form must reproduce the above copyright notice,
14 * this list of conditions and the following disclaimer in the documentation
15 * and/or other materials provided with the distribution.
16 * - Neither the name of Sun Microsystems, Inc. nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #if defined(LIBC_SCCS) && !defined(lint)
34 static char *sccsid2 = "from: @(#)svc_run.c 1.1 87/10/13 Copyr 1984 Sun Micro";
35 static char *sccsid = "from: @(#)svc_run.c 2.1 88/07/29 4.0 RPCSRC";
36 #endif
37 /*
38 * This is the rpc server side idle loop
39 * Wait for input, call server program.
40 */
41 #include "namespace.h"
42 #include "reentrant.h"
43 #include <err.h>
44 #include <errno.h>
45 #include <rpc/rpc.h>
46 #include <stdio.h>
47 #include <string.h>
48 #include <unistd.h>
49 #include "un-namespace.h"
50
51 #include <rpc/rpc.h>
52 #include "rpc_com.h"
53 #include "mt_misc.h"
54
55 void
svc_run(void)56 svc_run(void)
57 {
58 fd_set readfds, cleanfds;
59 struct timeval timeout;
60
61 timeout.tv_sec = 30;
62 timeout.tv_usec = 0;
63
64 for (;;) {
65 rwlock_rdlock(&svc_fd_lock);
66 readfds = svc_fdset;
67 cleanfds = svc_fdset;
68 rwlock_unlock(&svc_fd_lock);
69 switch (_select(svc_maxfd+1, &readfds, NULL, NULL, &timeout)) {
70 case -1:
71 FD_ZERO(&readfds);
72 if (errno == EINTR) {
73 continue;
74 }
75 _warn("svc_run: - select failed");
76 return;
77 case 0:
78 __svc_clean_idle(&cleanfds, 30, FALSE);
79 continue;
80 default:
81 svc_getreqset(&readfds);
82 }
83 }
84 }
85
86 /*
87 * This function causes svc_run() to exit by telling it that it has no
88 * more work to do.
89 */
90 void
svc_exit(void)91 svc_exit(void)
92 {
93 rwlock_wrlock(&svc_fd_lock);
94 FD_ZERO(&svc_fdset);
95 rwlock_unlock(&svc_fd_lock);
96 }
97