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