projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 15637ed4 RG |
1 | /* |
| 2 | * Copyright (c) 1989 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * This code is derived from software contributed to Berkeley by | |
| 6 | * Rick Macklem at The University of Guelph. | |
| 7 | * | |
| 8 | * Redistribution and use in source and binary forms, with or without | |
| 9 | * modification, are permitted provided that the following conditions | |
| 10 | * are met: | |
| 11 | * 1. Redistributions of source code must retain the above copyright | |
| 12 | * notice, this list of conditions and the following disclaimer. | |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 14 | * notice, this list of conditions and the following disclaimer in the | |
| 15 | * documentation and/or other materials provided with the distribution. | |
| 16 | * 3. All advertising materials mentioning features or use of this software | |
| 17 | * must display the following acknowledgement: | |
| 18 | * This product includes software developed by the University of | |
| 19 | * California, Berkeley and its contributors. | |
| 20 | * 4. Neither the name of the University nor the names of its contributors | |
| 21 | * may be used to endorse or promote products derived from this software | |
| 22 | * without specific prior written permission. | |
| 23 | * | |
| 24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 34 | * SUCH DAMAGE. | |
| 35 | */ | |
| 36 | ||
| 37 | #ifndef lint | |
| 38 | char copyright[] = | |
| 39 | "@(#) Copyright (c) 1989 Regents of the University of California.\n\ | |
| 40 | All rights reserved.\n"; | |
| 41 | #endif not lint | |
| 42 | ||
| 43 | #ifndef lint | |
| 44 | static char sccsid[] = "@(#)nfsiod.c 5.4 (Berkeley) 6/29/90"; | |
| 45 | #endif not lint | |
| 46 | ||
| 47 | #include <stdio.h> | |
| 48 | #include <signal.h> | |
| 49 | #include <fcntl.h> | |
| 50 | #include <sys/types.h> | |
| 51 | #include <sys/ioctl.h> | |
| 52 | ||
| 53 | /* Global defs */ | |
| 54 | #ifdef DEBUG | |
| 55 | int debug = 1; | |
| 56 | #else | |
| 57 | int debug = 0; | |
| 58 | #endif | |
| 59 | ||
| 60 | /* | |
| 61 | * Nfsiod does asynchronous buffered I/O on behalf of the NFS client. | |
| 62 | * It does not have to be running for correct operation, but will improve | |
| 63 | * throughput. The one optional argument is the number of children to fork. | |
| 64 | */ | |
| 65 | main(argc, argv) | |
| 66 | int argc; | |
| 67 | char *argv[]; | |
| 68 | { | |
| 69 | register int i; | |
| 70 | int cnt; | |
| 71 | ||
| 72 | if (debug == 0) { | |
| 73 | daemon(0, 0); | |
| 74 | signal(SIGINT, SIG_IGN); | |
| 75 | signal(SIGQUIT, SIG_IGN); | |
| 76 | signal(SIGTERM, SIG_IGN); | |
| 77 | signal(SIGHUP, SIG_IGN); | |
| 78 | } | |
| 79 | if (argc != 2 || (cnt = atoi(argv[1])) <= 0 || cnt > 20) | |
| 80 | cnt = 1; | |
| 81 | for (i = 1; i < cnt; i++) | |
| 82 | if (fork() == 0) | |
| 83 | break; | |
| 84 | async_daemon(); /* Never returns */ | |
| 85 | exit(1); | |
| 86 | } |