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/* sys/wait.h
Copyright 1997, 1998, 2001, 2002, 2003, 2004, 2006, 2011, 2012 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#ifndef _SYS_WAIT_H
#define _SYS_WAIT_H
#include <sys/types.h>
#include <sys/resource.h>
#include <cygwin/wait.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifdef __INSIDE_CYGWIN__
typedef int *__wait_status_ptr_t;
#elif defined(__cplusplus)
/* Attribute __transparent_union__ is only supported for C. */
typedef void *__wait_status_ptr_t;
#else /* !__INSIDE_CYGWIN__ && !__cplusplus */
/* Allow `int' and `union wait' for the status. */
typedef union
{
int *__int_ptr;
union wait *__union_wait_ptr;
} __wait_status_ptr_t __attribute__ ((__transparent_union__));
#endif /* __INSIDE_CYGWIN__ */
pid_t wait (__wait_status_ptr_t __status);
pid_t waitpid (pid_t __pid, __wait_status_ptr_t __status, int __options);
pid_t wait3 (__wait_status_ptr_t __status, int __options, struct rusage *__rusage);
pid_t wait4 (pid_t __pid, __wait_status_ptr_t __status, int __options, struct rusage *__rusage);
#ifdef _COMPILING_NEWLIB
pid_t _wait (__wait_status_ptr_t __status);
#endif
union wait
{
int w_status;
struct
{
unsigned int __w_termsig:7; /* Terminating signal. */
unsigned int __w_coredump:1; /* Set if dumped core. */
unsigned int __w_retcode:8; /* Return code if exited normally. */
unsigned int:16;
} __wait_terminated;
struct
{
unsigned int __w_stopval:8; /* W_STOPPED if stopped. */
unsigned int __w_stopsig:8; /* Stopping signal. */
unsigned int:16;
} __wait_stopped;
};
#define w_termsig __wait_terminated.__w_termsig
#define w_coredump __wait_terminated.__w_coredump
#define w_retcode __wait_terminated.__w_retcode
#define w_stopsig __wait_stopped.__w_stopsig
#define w_stopval __wait_stopped.__w_stopval
#ifdef __cplusplus
}
#endif
/* Used in cygwin/wait.h, redefine to accept `int' and `union wait'. */
#undef __wait_status_to_int
#ifdef __cplusplus
extern "C++" {
inline int __wait_status_to_int (int __status)
{ return __status; }
inline int __wait_status_to_int (const union wait & __status)
{ return __status.w_status; }
}
#else /* !__cplusplus */
#define __wait_status_to_int(__status) (__extension__ \
(((union { __typeof(__status) __in; int __out; }) { .__in = (__status) }).__out))
#endif /* __cplusplus */
#endif /* _SYS_WAIT_H */
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