| 1 | /*- |
| 2 | * Copyright (c) 1991 The Regents of the University of California. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * This code is derived from software contributed to Berkeley by |
| 6 | * Van Jacobson and Steven McCanne of Lawrence Berkeley Laboratory. |
| 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 | * @(#)wait.h 6.3 (Berkeley) 5/8/91 |
| 37 | */ |
| 38 | |
| 39 | /* Define how to access the structure that the wait system call stores. |
| 40 | On many systems, there is a structure defined for this. |
| 41 | But on vanilla-ish USG systems there is not. */ |
| 42 | |
| 43 | #ifndef HAVE_WAIT_STRUCT |
| 44 | |
| 45 | #define WAITTYPE int |
| 46 | #define WIFSTOPPED(w) (((w)&0377) == 0177) |
| 47 | #define WIFSIGNALED(w) (((w)&0377) != 0177 && ((w)&~0377) == 0) |
| 48 | #define WIFEXITED(w) (((w)&0377) == 0) |
| 49 | #define WEXITSTATUS(w) ((w) >> 8) |
| 50 | #define WSTOPSIG(w) ((w) >> 8) |
| 51 | #define WCOREDUMP(w) (((w)&0200) != 0) |
| 52 | #define WTERMSIG(w) ((w) & 0177) |
| 53 | #define WSETEXIT(w, status) ((w) = (status)) |
| 54 | #define WSETSTOP(w,sig) ((w) = (0177 | ((sig) << 8))) |
| 55 | |
| 56 | #else |
| 57 | |
| 58 | #include <sys/wait.h> |
| 59 | |
| 60 | #define WAITTYPE union wait |
| 61 | #ifndef WEXITSTATUS |
| 62 | #define WEXITSTATUS(w) (w).w_retcode |
| 63 | #endif |
| 64 | #ifndef WSTOPSIG |
| 65 | #define WSTOPSIG(w) (w).w_stopsig |
| 66 | #endif |
| 67 | #ifndef WCOREDUMP |
| 68 | #define WCOREDUMP(w) (w).w_coredump |
| 69 | #endif |
| 70 | #ifndef WTERMSIG |
| 71 | #define WTERMSIG(w) (w).w_termsig |
| 72 | #endif |
| 73 | #ifndef WSETEXIT |
| 74 | #define WSETEXIT(w, status) ((w).w_status = (status)) |
| 75 | #endif |
| 76 | #ifndef WSETSTOP |
| 77 | #define WSETSTOP(w,sig) \ |
| 78 | ((w).w_stopsig = (sig), (w).w_coredump = 0, (w).w_termsig = 0177) |
| 79 | #endif |
| 80 | |
| 81 | #endif |