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 #include <sys/cdefs.h> 38 __FBSDID("$FreeBSD$"); 39 40 /* 41 * This is the rpc server side idle loop 42 * Wait for input, call server program. 43 */ 44 #include "namespace.h" 45 #include "reentrant.h" 46 #include <err.h> 47 #include <errno.h> 48 #include <rpc/rpc.h> 49 #include <stdio.h> 50 #include <string.h> 51 #include <unistd.h> 52 #include "un-namespace.h" 53 54 #include <rpc/rpc.h> 55 #include "rpc_com.h" 56 #include "mt_misc.h" 57 58 void 59 svc_run(void) 60 { 61 fd_set readfds, cleanfds; 62 struct timeval timeout; 63 64 timeout.tv_sec = 30; 65 timeout.tv_usec = 0; 66 67 for (;;) { 68 rwlock_rdlock(&svc_fd_lock); 69 readfds = svc_fdset; 70 cleanfds = svc_fdset; 71 rwlock_unlock(&svc_fd_lock); 72 switch (_select(svc_maxfd+1, &readfds, NULL, NULL, &timeout)) { 73 case -1: 74 FD_ZERO(&readfds); 75 if (errno == EINTR) { 76 continue; 77 } 78 _warn("svc_run: - select failed"); 79 return; 80 case 0: 81 __svc_clean_idle(&cleanfds, 30, FALSE); 82 continue; 83 default: 84 svc_getreqset(&readfds); 85 } 86 } 87 } 88 89 /* 90 * This function causes svc_run() to exit by telling it that it has no 91 * more work to do. 92 */ 93 void 94 svc_exit(void) 95 { 96 rwlock_wrlock(&svc_fd_lock); 97 FD_ZERO(&svc_fdset); 98 rwlock_unlock(&svc_fd_lock); 99 } 100