diff options
Diffstat (limited to 'include/sys/wait.h')
| -rw-r--r-- | include/sys/wait.h | 97 |
1 files changed, 47 insertions, 50 deletions
diff --git a/include/sys/wait.h b/include/sys/wait.h index 2ba604de6..03ac5fe35 100644 --- a/include/sys/wait.h +++ b/include/sys/wait.h @@ -1,20 +1,20 @@ -/* Copyright (C) 1991, 92, 93, 94, 96, 97, 98 Free Software Foundation, Inc. +/* Copyright (C) 1991-1994,96,97,98,99,2000,2001 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. + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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. + Lesser 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 Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; 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 <sys/wait.h> @@ -27,65 +27,64 @@ __BEGIN_DECLS -#include <bits/types.h> - -#if defined __USE_XOPEN && !defined pid_t -typedef __pid_t pid_t; -# define pid_t pid_t -#endif +#include <signal.h> +#include <sys/resource.h> +/* These macros could also be defined int <stdlib.h>. */ +#if !defined _STDLIB_H || !defined __USE_XOPEN /* This will define the `W*' macros for the flag bits to `waitpid', `wait3', and `wait4'. */ -#include <bits/waitflags.h> +# include <bits/waitflags.h> -#ifdef __USE_BSD +# 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. */ -# if defined __GNUC__ && !defined __cplusplus -# 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 +# 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 +# if !defined __GNUC__ || __GNUC__ < 2 || defined __cplusplus +# define __WAIT_STATUS void * +# define __WAIT_STATUS_DEFN void * +# 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 * -#endif +# define __WAIT_STATUS_DEFN int * +# endif -#else /* Don't use BSD. */ +# else /* Don't use BSD. */ -# define __WAIT_INT(status) (status) -# define __WAIT_STATUS int * -# define __WAIT_STATUS_DEFN int * +# define __WAIT_INT(status) (status) +# define __WAIT_STATUS int * +# define __WAIT_STATUS_DEFN int * -#endif /* Use BSD. */ +# endif /* Use BSD. */ /* This will define all the `__W*' macros. */ -#include <bits/waitstatus.h> +# include <bits/waitstatus.h> -#define WEXITSTATUS(status) __WEXITSTATUS(__WAIT_INT(status)) -#define WTERMSIG(status) __WTERMSIG(__WAIT_INT(status)) -#define WSTOPSIG(status) __WSTOPSIG(__WAIT_INT(status)) -#define WIFEXITED(status) __WIFEXITED(__WAIT_INT(status)) -#define WIFSIGNALED(status) __WIFSIGNALED(__WAIT_INT(status)) -#define WIFSTOPPED(status) __WIFSTOPPED(__WAIT_INT(status)) +# define WEXITSTATUS(status) __WEXITSTATUS(__WAIT_INT(status)) +# define WTERMSIG(status) __WTERMSIG(__WAIT_INT(status)) +# define WSTOPSIG(status) __WSTOPSIG(__WAIT_INT(status)) +# define WIFEXITED(status) __WIFEXITED(__WAIT_INT(status)) +# define WIFSIGNALED(status) __WIFSIGNALED(__WAIT_INT(status)) +# define WIFSTOPPED(status) __WIFSTOPPED(__WAIT_INT(status)) +#endif /* <stdlib.h> not included. */ #ifdef __USE_BSD # define WCOREFLAG __WCOREFLAG @@ -107,8 +106,7 @@ typedef enum /* Wait for a child to die. When one does, put its status in *STAT_LOC and return its process ID. For errors, return (pid_t) -1. */ -extern __pid_t __wait __P ((__WAIT_STATUS __stat_loc)); -extern __pid_t wait __P ((__WAIT_STATUS __stat_loc)); +extern __pid_t wait (__WAIT_STATUS __stat_loc) __THROW; #ifdef __USE_BSD /* Special values for the PID argument to `waitpid' and `wait4'. */ @@ -128,8 +126,7 @@ 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 (__pid_t __pid, int *__stat_loc, int __options) __THROW; #if defined __USE_SVID || defined __USE_XOPEN # define __need_siginfo_t @@ -142,8 +139,8 @@ extern __pid_t waitpid __P ((__pid_t __pid, int *__stat_loc, 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)); +extern int waitid (idtype_t __idtype, __id_t __id, siginfo_t *__infop, + int __options) __THROW; #endif #if defined __USE_BSD || defined __USE_XOPEN_EXTENDED @@ -156,8 +153,8 @@ 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 (__WAIT_STATUS __stat_loc, int __options, + struct rusage * __usage) __THROW; #endif #ifdef __USE_BSD @@ -166,8 +163,8 @@ extern __pid_t wait3 __P ((__WAIT_STATUS __stat_loc, 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 (__pid_t __pid, __WAIT_STATUS __stat_loc, int __options, + struct rusage *__usage) __THROW; #endif /* Use BSD. */ |