/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ /* Wrapper around the ugly sys/wait includes/ifdefs *//* $Id$ */ #ifdef HAVE_SYS_WAIT_H# include <sys/wait.h>#endif #ifndef POSIX_SYS_WAIT/* Get rid of system macros (which probably use union wait) */# undef WIFCORED# undef WIFEXITED# undef WEXITSTATUS# undef WIFSIGNALED# undef WTERMSIG# undef WIFSTOPPED# undef WSTOPSIG#endif /* POSIX_SYS_WAIT */ typedef int WAIT_T; #ifndef WIFCORED# define WIFCORED(s)	((s) & 0x80)#endif#define WSTATUS(s)	(s) #ifndef WIFEXITED# define WIFEXITED(s)	(((s) & 0xff) == 0)#endif#ifndef WEXITSTATUS# define WEXITSTATUS(s)	(((s) >> 8) & 0xff)#endif#ifndef WIFSIGNALED# define WIFSIGNALED(s)	(((s) & 0xff) != 0 && ((s) & 0xff) != 0x7f)#endif#ifndef WTERMSIG# define WTERMSIG(s)	((s) & 0x7f)#endif#ifndef WIFSTOPPED# define WIFSTOPPED(s)	(((s) & 0xff) == 0x7f)#endif#ifndef WSTOPSIG# define WSTOPSIG(s)	(((s) >> 8) & 0xff)#endif #if !defined(HAVE_WAITPID) && defined(HAVE_WAIT3)  /* always used with p == -1 */# define ksh_waitpid(p, s, o)	wait3((s), (o), (struct rusage *) 0)#else /* !HAVE_WAITPID && HAVE_WAIT3 */# define ksh_waitpid(p, s, o)	waitpid((p), (s), (o))#endif /* !HAVE_WAITPID && HAVE_WAIT3 */