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-rw-r--r--StdLib/Include/sys/wait.h170
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diff --git a/StdLib/Include/sys/wait.h b/StdLib/Include/sys/wait.h
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-/* $NetBSD: wait.h,v 1.24 2005/12/11 12:25:21 christos Exp $ */
-
-/*
- * Copyright (c) 1982, 1986, 1989, 1993, 1994
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)wait.h 8.2 (Berkeley) 7/10/94
- */
-#ifndef _SYS_WAIT_H_
-#define _SYS_WAIT_H_
-
-#include <sys/featuretest.h>
-#include <sys/types.h>
-
-/*
- * This file holds definitions relevent to the wait4 system call
- * and the alternate interfaces that use it (wait, wait3, waitpid).
- */
-
-/*
- * Macros to test the exit status returned by wait
- * and extract the relevant values.
- */
-#define _W_INT(w) (*(int *)(void *)&(w)) /* convert union wait to int */
-
-#define _WSTATUS(x) (_W_INT(x) & 0177)
-#define _WSTOPPED 0177 /* _WSTATUS if process is stopped */
-#define WIFSTOPPED(x) (_WSTATUS(x) == _WSTOPPED)
-#define WSTOPSIG(x) ((int)(((unsigned int)_W_INT(x)) >> 8) & 0xff)
-#define WIFSIGNALED(x) (_WSTATUS(x) != _WSTOPPED && _WSTATUS(x) != 0)
-#define WTERMSIG(x) (_WSTATUS(x))
-#define WIFEXITED(x) (_WSTATUS(x) == 0)
-#define WEXITSTATUS(x) ((int)(((unsigned int)_W_INT(x)) >> 8) & 0xff)
-#define WCOREFLAG 0200
-#define WCOREDUMP(x) (_W_INT(x) & WCOREFLAG)
-
-#define W_EXITCODE(ret, sig) ((ret) << 8 | (sig))
-#define W_STOPCODE(sig) ((sig) << 8 | _WSTOPPED)
-
-/*
- * Option bits for the third argument of wait4. WNOHANG causes the
- * wait to not hang if there are no stopped or terminated processes, rather
- * returning an error indication in this case (pid==0). WUNTRACED
- * indicates that the caller should receive status about untraced children
- * which stop due to signals. If children are stopped and a wait without
- * this option is done, it is as though they were still running... nothing
- * about them is returned.
- */
-#define WNOHANG 0x00000001 /* don't hang in wait */
-#define WUNTRACED 0x00000002 /* tell about stopped,
- untraced children */
-#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
-#define WALTSIG 0x00000004 /* wait for processes that exit
- with an alternate signal (i.e.
- not SIGCHLD) */
-#define WALLSIG 0x00000008 /* wait for processes that exit
- with any signal, i.e. SIGCHLD
- and alternates */
-
-/*
- * These are the Linux names of some of the above flags, for compatibility
- * with Linux's clone(2) API.
- */
-#define __WCLONE WALTSIG
-#define __WALL WALLSIG
-
-/*
- * These bits are used in order to support SVR4 (etc) functionality
- * without replicating sys_wait4 5 times.
- */
-#define WNOWAIT 0x00010000 /* Don't mark child 'P_WAITED' */
-#define WNOZOMBIE 0x00020000 /* Ignore zombies */
-#endif /* _XOPEN_SOURCE || _NETBSD_SOURCE */
-
-/* POSIX extensions and 4.2/4.3 compatibility: */
-
-/*
- * Tokens for special values of the "pid" parameter to wait4.
- */
-#define WAIT_ANY (-1) /* any process */
-#define WAIT_MYPGRP 0 /* any process in my process group */
-
-/*
- * Deprecated:
- * Structure of the information in the status word returned by wait4.
- * If w_stopval==WSTOPPED, then the second structure describes
- * the information returned, else the first.
- */
-union wait {
- int w_status; /* used in syscall */
- /*
- * Terminated process status.
- */
- struct {
-#if BYTE_ORDER == LITTLE_ENDIAN
- unsigned int w_Termsig:7, /* termination signal */
- w_Coredump:1, /* core dump indicator */
- w_Retcode:8, /* exit code if w_termsig==0 */
- w_Filler:16; /* upper bits filler */
-#endif
-#if BYTE_ORDER == BIG_ENDIAN
- unsigned int w_Filler:16, /* upper bits filler */
- w_Retcode:8, /* exit code if w_termsig==0 */
- w_Coredump:1, /* core dump indicator */
- w_Termsig:7; /* termination signal */
-#endif
- } w_T;
- /*
- * Stopped process status. Returned
- * only for traced children unless requested
- * with the WUNTRACED option bit.
- */
- struct {
-#if BYTE_ORDER == LITTLE_ENDIAN
- unsigned int w_Stopval:8, /* == W_STOPPED if stopped */
- w_Stopsig:8, /* signal that stopped us */
- w_Filler:16; /* upper bits filler */
-#endif
-#if BYTE_ORDER == BIG_ENDIAN
- unsigned int w_Filler:16, /* upper bits filler */
- w_Stopsig:8, /* signal that stopped us */
- w_Stopval:8; /* == W_STOPPED if stopped */
-#endif
- } w_S;
-};
-#define w_termsig w_T.w_Termsig
-#define w_coredump w_T.w_Coredump
-#define w_retcode w_T.w_Retcode
-#define w_stopval w_S.w_Stopval
-#define w_stopsig w_S.w_Stopsig
-
-#define WSTOPPED _WSTOPPED
-
-__BEGIN_DECLS
-pid_t wait(int *);
-
-#if 0 /* Normally declared here but not implemented for UEFI. */
-struct rusage; /* forward declaration */
-
-pid_t waitpid(pid_t, int *, int);
-pid_t wait3(int *, int, struct rusage *);
-pid_t wait4(pid_t, int *, int, struct rusage *);
-#endif
-__END_DECLS
-
-#endif /* !_SYS_WAIT_H_ */