williamr@2: /*- williamr@2: * Copyright (c) 1982, 1986, 1989, 1993, 1994 williamr@2: * The Regents of the University of California. All rights reserved. williamr@2: * williamr@2: * Redistribution and use in source and binary forms, with or without williamr@2: * modification, are permitted provided that the following conditions williamr@2: * are met: williamr@2: * 1. Redistributions of source code must retain the above copyright williamr@2: * notice, this list of conditions and the following disclaimer. williamr@2: * 2. Redistributions in binary form must reproduce the above copyright williamr@2: * notice, this list of conditions and the following disclaimer in the williamr@2: * documentation and/or other materials provided with the distribution. williamr@2: * 4. Neither the name of the University nor the names of its contributors williamr@2: * may be used to endorse or promote products derived from this software williamr@2: * without specific prior written permission. williamr@2: * williamr@2: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND williamr@2: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE williamr@2: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE williamr@2: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE williamr@2: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL williamr@2: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS williamr@2: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) williamr@2: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT williamr@2: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY williamr@2: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF williamr@2: * SUCH DAMAGE. williamr@2: * © Portions copyright (c) 2007 Symbian Software Ltd. All rights reserved. williamr@2: * @(#)wait.h 8.2 (Berkeley) 7/10/94 williamr@2: * $FreeBSD: src/sys/sys/wait.h,v 1.21 2005/01/05 22:19:44 jhb Exp $ williamr@2: */ williamr@2: williamr@2: #ifndef _SYS_WAIT_H_ williamr@2: #define _SYS_WAIT_H_ williamr@2: williamr@2: #include williamr@2: williamr@2: /* williamr@2: * This file holds definitions relevant to the wait4 system call and the williamr@2: * alternate interfaces that use it (wait, wait3, waitpid). williamr@2: */ williamr@2: williamr@2: /* williamr@2: * Macros to test the exit status returned by wait and extract the relevant williamr@2: * values. williamr@2: */ williamr@2: #if __BSD_VISIBLE williamr@2: #define _W_INT(w) (*(int *)&(w)) /* Convert union wait to int. */ williamr@2: #define WCOREFLAG 0200 williamr@2: #else williamr@2: #define _W_INT(i) (i) williamr@2: #endif williamr@2: williamr@2: #define _WSTATUS(x) (_W_INT(x) & 0177) williamr@2: #define _WSTOPPED 0177 /* _WSTATUS if process is stopped */ williamr@2: #define WIFSTOPPED(x) (_WSTATUS(x) == _WSTOPPED) williamr@2: #define WSTOPSIG(x) (_W_INT(x) >> 8) williamr@2: #define WIFSIGNALED(x) (_WSTATUS(x) != _WSTOPPED && _WSTATUS(x) != 0) williamr@2: #define WTERMSIG(x) (_WSTATUS(x)) williamr@2: #define WIFEXITED(x) (_WSTATUS(x) == 0) williamr@2: #define WEXITSTATUS(x) (_W_INT(x) >> 8) williamr@2: #define WIFCONTINUED(x) (x == 0x13) /* 0x13 == SIGCONT */ williamr@2: #if __BSD_VISIBLE williamr@2: #define WCOREDUMP(x) (_W_INT(x) & WCOREFLAG) williamr@2: williamr@2: #define W_EXITCODE(ret, sig) ((ret) << 8 | (sig)) williamr@2: #define W_STOPCODE(sig) ((sig) << 8 | _WSTOPPED) williamr@2: #endif williamr@2: williamr@2: #ifdef __SYMBIAN32__ williamr@2: #define WIFTERMINATED(x) (_WSTATUS(x)==1) williamr@2: #define WTERMINATESTATUS(x) (_W_INT(x) >> 8) williamr@2: #define WIFPANICED(x) (_WSTATUS(x)==2) williamr@2: #define WPANICCODE(x) (_W_INT(x) >> 8) williamr@2: #endif /* __SYMBIAN32__ */ williamr@2: williamr@2: /* williamr@2: * Option bits for the third argument of wait4. WNOHANG causes the williamr@2: * wait to not hang if there are no stopped or terminated processes, rather williamr@2: * returning an error indication in this case (pid==0). WUNTRACED williamr@2: * indicates that the caller should receive status about untraced children williamr@2: * which stop due to signals. If children are stopped and a wait without williamr@2: * this option is done, it is as though they were still running... nothing williamr@2: * about them is returned. williamr@2: */ williamr@2: #define WNOHANG 1 /* Don't hang in wait. */ williamr@2: #define WUNTRACED 2 /* Tell about stopped, untraced children. */ williamr@2: #define WCONTINUED 4 /* Report a job control continued process. */ williamr@2: williamr@2: #if __BSD_VISIBLE williamr@2: #define WLINUXCLONE 0x80000000 /* Wait for kthread spawned from linux_clone. */ williamr@2: #endif williamr@2: williamr@2: /* williamr@2: * Tokens for special values of the "pid" parameter to wait4. williamr@2: */ williamr@2: #if __BSD_VISIBLE williamr@2: #define WAIT_ANY (-1) /* any process */ williamr@2: #define WAIT_MYPGRP 0 /* any process in my process group */ williamr@2: #endif /* __BSD_VISIBLE */ williamr@2: williamr@2: #ifndef _KERNEL williamr@2: #include williamr@2: williamr@2: __BEGIN_DECLS williamr@2: IMPORT_C williamr@2: pid_t wait(int *); williamr@2: IMPORT_C williamr@2: pid_t waitpid(pid_t, int *, int); williamr@2: #if __BSD_VISIBLE williamr@2: struct rusage; williamr@2: #endif williamr@2: __END_DECLS williamr@2: #endif /* !_KERNEL */ williamr@2: williamr@2: #endif /* !_SYS_WAIT_H_ */