From c7aa1e73d980f0f0c349dec153aa20c766518cbf Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Mon, 30 Oct 2000 06:26:31 +0000 Subject: Header file cleanup --- include/sys/wait.h | 135 ++++++++++++++++++++++++++++++++--------------------- 1 file changed, 82 insertions(+), 53 deletions(-) (limited to 'include/sys/wait.h') diff --git a/include/sys/wait.h b/include/sys/wait.h index be95c2202..2ba604de6 100644 --- a/include/sys/wait.h +++ b/include/sys/wait.h @@ -1,82 +1,84 @@ -/* Copyright (C) 1991, 1992 Free Software Foundation, Inc. -This file is part of the GNU C Library. +/* Copyright (C) 1991, 92, 93, 94, 96, 97, 98 Free Software Foundation, Inc. + This file is part of the GNU C Library. -The GNU C Library is free software; you can redistribute it and/or -modify it under the terms of the GNU Library General Public License as -published by the Free Software Foundation; either version 2 of the -License, or (at your option) any later version. + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. -The GNU C Library is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -Library General Public License for more details. + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. -You should have received a copy of the GNU Library General Public -License along with the GNU C Library; see the file COPYING.LIB. If -not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave, -Cambridge, MA 02139, USA. */ + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ /* * POSIX Standard: 3.2.1 Wait for Process Termination */ #ifndef _SYS_WAIT_H - #define _SYS_WAIT_H 1 + #include -#include __BEGIN_DECLS -#include +#include + +#if defined __USE_XOPEN && !defined pid_t +typedef __pid_t pid_t; +# define pid_t pid_t +#endif /* This will define the `W*' macros for the flag bits to `waitpid', `wait3', and `wait4'. */ -#include +#include #ifdef __USE_BSD /* Lots of hair to allow traditional BSD use of `union wait' as well as POSIX.1 use of `int' for the status word. */ -#ifdef __GNUC__ -#define __WAIT_INT(status) \ +# if defined __GNUC__ && !defined __cplusplus +# define __WAIT_INT(status) \ (__extension__ ({ union { __typeof(status) __in; int __i; } __u; \ __u.__in = (status); __u.__i; })) -#else -#define __WAIT_INT(status) (*(int *) &(status)) -#endif - -/* This is the type of the argument to `wait'. With GCC 2.6.1 and later, - the funky union causes redeclarations with either `int *' or `union wait - *' to be allowed without complaint. __WAIT_STATUS_DEFN is the type used - in the actual function definitions. */ - -/* g++ in gcc 2.6.1 doesn't work. Maybe 2.7.x. H.J. */ -#if !defined (__GNUC__) || defined (__cplusplus) || \ - __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) || \ - (defined(_MIT_POSIX_THREADS) && _MIT_POSIX_THREADS > 0) -#define __WAIT_STATUS __ptr_t -#define __WAIT_STATUS_DEFN __ptr_t -#else +# else +# define __WAIT_INT(status) (*(int *) &(status)) +# endif + +/* This is the type of the argument to `wait'. The funky union + causes redeclarations with ether `int *' or `union wait *' to be + allowed without complaint. __WAIT_STATUS_DEFN is the type used in + the actual function definitions. */ + +# if !defined __GNUC__ || __GNUC__ < 2 || defined __cplusplus +# define __WAIT_STATUS __ptr_t +# define __WAIT_STATUS_DEFN __ptr_t +# else /* This works in GCC 2.6.1 and later. */ typedef union { union wait *__uptr; int *__iptr; - } __WAIT_STATUS __attribute__ ((transparent_union)); -#define __WAIT_STATUS_DEFN int * + } __WAIT_STATUS __attribute__ ((__transparent_union__)); +# define __WAIT_STATUS_DEFN int * #endif #else /* Don't use BSD. */ -#define __WAIT_INT(status) (status) -#define __WAIT_STATUS int * +# define __WAIT_INT(status) (status) +# define __WAIT_STATUS int * +# define __WAIT_STATUS_DEFN int * #endif /* Use BSD. */ /* This will define all the `__W*' macros. */ -#include +#include #define WEXITSTATUS(status) __WEXITSTATUS(__WAIT_INT(status)) #define WTERMSIG(status) __WTERMSIG(__WAIT_INT(status)) @@ -86,9 +88,20 @@ typedef union #define WIFSTOPPED(status) __WIFSTOPPED(__WAIT_INT(status)) #ifdef __USE_BSD -#define WCOREDUMP(status) __WCOREDUMP(__WAIT_INT(status)) -#define W_EXITCODE(ret, sig) __W_EXITCODE(ret, sig) -#define W_STOPCODE(sig) __W_STOPCODE(sig) +# define WCOREFLAG __WCOREFLAG +# define WCOREDUMP(status) __WCOREDUMP(__WAIT_INT(status)) +# define W_EXITCODE(ret, sig) __W_EXITCODE(ret, sig) +# define W_STOPCODE(sig) __W_STOPCODE(sig) +#endif + +/* The following values are used by the `waitid' function. */ +#if defined __USE_SVID || defined __USE_XOPEN +typedef enum +{ + P_ALL, /* Wait for any child. */ + P_PID, /* Wait for specified process. */ + P_PGID /* Wait for members of process group. */ +} idtype_t; #endif @@ -99,8 +112,8 @@ extern __pid_t wait __P ((__WAIT_STATUS __stat_loc)); #ifdef __USE_BSD /* Special values for the PID argument to `waitpid' and `wait4'. */ -#define WAIT_ANY (-1) /* Any process. */ -#define WAIT_MYPGRP 0 /* Any process in my process group. */ +# define WAIT_ANY (-1) /* Any process. */ +# define WAIT_MYPGRP 0 /* Any process in my process group. */ #endif /* Wait for a child matching PID to die. @@ -115,11 +128,25 @@ extern __pid_t wait __P ((__WAIT_STATUS __stat_loc)); return PID and store the dead child's status in STAT_LOC. Return (pid_t) -1 for errors. If the WUNTRACED bit is set in OPTIONS, return status for stopped children; otherwise don't. */ -extern __pid_t __waitpid __P ((__pid_t __pid, int *__stat_loc, - int __options)); extern __pid_t waitpid __P ((__pid_t __pid, int *__stat_loc, int __options)); -#ifdef __USE_BSD + +#if defined __USE_SVID || defined __USE_XOPEN +# define __need_siginfo_t +# include +/* Wait for a childing matching IDTYPE and ID to change the status and + place appropriate information in *INFOP. + If IDTYPE is P_PID, match any process whose process ID is ID. + If IDTYPE is P_PGID, match any process whose process group is ID. + If IDTYPE is P_ALL, match any process. + If the WNOHANG bit is set in OPTIONS, and that child + is not already dead, clear *INFOP and return 0. If successful, store + exit code and status in *INFOP. */ +extern int waitid __P ((idtype_t __idtype, __id_t __id, siginfo_t *__infop, + int __options)); +#endif + +#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED /* This being here makes the prototypes valid whether or not we have already included to define `struct rusage'. */ struct rusage; @@ -129,14 +156,16 @@ struct rusage; nil, store information about the child's resource usage there. If the WUNTRACED bit is set in OPTIONS, return status for stopped children; otherwise don't. */ -extern __pid_t __wait3 __P ((__WAIT_STATUS __stat_loc, - int __options, struct rusage * __usage)); extern __pid_t wait3 __P ((__WAIT_STATUS __stat_loc, int __options, struct rusage * __usage)); +#endif + +#ifdef __USE_BSD +/* This being here makes the prototypes valid whether or not + we have already included to define `struct rusage'. */ +struct rusage; /* PID is like waitpid. Other args are like wait3. */ -extern __pid_t __wait4 __P ((__pid_t __pid, __WAIT_STATUS __stat_loc, - int __options, struct rusage *__usage)); extern __pid_t wait4 __P ((__pid_t __pid, __WAIT_STATUS __stat_loc, int __options, struct rusage *__usage)); #endif /* Use BSD. */ -- cgit v1.2.3