add directory gnu
This commit is contained in:
gohigh
148
gnu/glibc/glibc-1.03/posix/sys/wait.h
Normal file
148
gnu/glibc/glibc-1.03/posix/sys/wait.h
Normal file
@@ -0,0 +1,148 @@
|
||||
/* Copyright (C) 1991, 1992 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 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 Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, 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 <gnu/types.h>
|
||||
#include <gnu/wait.h>
|
||||
|
||||
|
||||
#define WNOHANG __WNOHANG
|
||||
#define WUNTRACED __WUNTRACED
|
||||
|
||||
|
||||
/* Encoding of the status word. */
|
||||
|
||||
#include <endian.h>
|
||||
|
||||
#ifdef __USE_BSD
|
||||
union __wait
|
||||
{
|
||||
#ifdef __LITTLE_ENDIAN
|
||||
struct
|
||||
{
|
||||
unsigned int __w_termsig:7;
|
||||
unsigned int __w_coredump:1;
|
||||
unsigned int __w_retcode:8;
|
||||
unsigned int :16;
|
||||
} __wait_status;
|
||||
#else /* Big endian. */
|
||||
struct
|
||||
{
|
||||
unsigned int :16;
|
||||
unsigned int __w_retcode:8;
|
||||
unsigned int __w_coredump:1;
|
||||
unsigned int __w_termsig:7;
|
||||
} __wait_status;
|
||||
#endif /* Little endian. */
|
||||
};
|
||||
#define w_termsig __wait_status.__w_termsig
|
||||
#define w_coredump __wait_status.__w_coredump
|
||||
#define w_retcode __wait_status.__w_retcode
|
||||
#define w_stopsig w_retcode
|
||||
|
||||
#ifdef __GNUC__
|
||||
#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 v2, this will be a strange union. */
|
||||
|
||||
/* IGNORE(@This line MUST be split! m4 will not change it otherwise.@) */
|
||||
#define __WAIT_STATUS \
|
||||
PTR
|
||||
|
||||
#else /* Don't use BSD. */
|
||||
|
||||
#define __WAIT_INT(status) (status)
|
||||
|
||||
#define __WAIT_STATUS int *
|
||||
|
||||
#endif /* Use BSD. */
|
||||
|
||||
#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))
|
||||
|
||||
#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)
|
||||
#endif
|
||||
|
||||
|
||||
/* 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 EXFUN(__wait, (__WAIT_STATUS __stat_loc));
|
||||
extern __pid_t EXFUN(wait, (__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. */
|
||||
#endif
|
||||
|
||||
/* Wait for a child matching PID to die.
|
||||
If PID is greater than 0, match any process whose process ID is PID.
|
||||
If PID is (pid_t) -1, match any process.
|
||||
If PID is (pid_t) 0, match any process with the
|
||||
same process group as the current process.
|
||||
If PID is less than -1, match any process whose
|
||||
process group is the absolute value of PID.
|
||||
If the WNOHANG bit is set in OPTIONS, and that child
|
||||
is not already dead, return (pid_t) 0. If successful,
|
||||
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 EXFUN(__waitpid, (__pid_t __pid, int *__stat_loc,
|
||||
int __options));
|
||||
#ifdef __USE_BSD
|
||||
/* Wait for a child to exit. When one does, put its status in *STAT_LOC and
|
||||
return its process ID. For errors return (pid_t) -1. If USAGE is not nil,
|
||||
store information about the child's resource usage (as a `struct rusage')
|
||||
there. If the WUNTRACED bit is set in OPTIONS, return status for stopped
|
||||
children; otherwise don't. */
|
||||
extern __pid_t EXFUN(__wait3, (union __wait *__stat_loc,
|
||||
int __options, PTR __usage));
|
||||
#define wait3 __wait3
|
||||
|
||||
/* PID is like waitpid. Other args are like wait3. */
|
||||
extern __pid_t EXFUN(__wait4, (__pid_t __pid, union __wait *__stat_loc,
|
||||
int __options, PTR __usage));
|
||||
#define wait4 __wait4
|
||||
#endif /* Use BSD. */
|
||||
|
||||
#define waitpid __waitpid
|
||||
#define wait __wait
|
||||
|
||||
|
||||
#endif /* sys/wait.h */
|
||||
Reference in New Issue
Block a user