Header file cleanup

1 files changed, 82 insertions, 53 deletions

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	<sys/wait.h>
  */
 
 #ifndef	_SYS_WAIT_H
-
 #define	_SYS_WAIT_H	1
+
 #include <features.h>
-#include <errno.h>
 
 __BEGIN_DECLS
 
-#include <sys/types.h>
+#include <bits/types.h>
+
+#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 <waitflags.h>
+#include <bits/waitflags.h>
 
 #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 <waitstatus.h>
+#include <bits/waitstatus.h>
 
 #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 <bits/siginfo.h>
+/* 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 <sys/resource.h> 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 <sys/resource.h> 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.  */