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// -*- C++ -*-
//=============================================================================
/**
* @file unistd.h
*
* standard symbolic constants and types
*
* $Id$
*
* @author Don Hinton <dhinton@ieee.org>
* @author This code was originally in various places including ace/OS.h.
*/
//=============================================================================
#ifndef ACE_OS_INCLUDE_UNISTD_H
#define ACE_OS_INCLUDE_UNISTD_H
#include "ace/pre.h"
#include "ace/config-all.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/os_include/sys/types.h"
#include "ace/os_include/inttypes.h"
#if defined (ACE_WIN32) && !defined (ACE_HAS_WINCE)
# include <process.h>
# include <io.h>
#endif /* ACE_WIN32 && !ACE_HAS_WINCE */
#if !defined (ACE_LACKS_UNISTD_H)
# include /**/ <unistd.h>
#endif /* !ACE_LACKS_UNISTD_H */
# if defined (ACE_LACKS_UALARM_PROTOTYPE)
extern "C" u_int ualarm (u_int usecs, u_int interval);
# endif /* ACE_LACKS_UALARM_PROTOTYPE */
#if defined (ACE_LACKS_PREAD_PROTOTYPE) && (_XOPEN_SOURCE - 0) < 500
// _XOPEN_SOURCE == 500 Single Unix conformance
// It seems that _XOPEN_SOURCE == 500 means that the prototypes are
// already defined in the system headers.
extern "C" ssize_t pread (int fd,
void *buf,
size_t nbytes,
off_t offset);
extern "C" ssize_t pwrite (int fd,
const void *buf,
size_t n,
off_t offset);
#endif /* ACE_LACKS_PREAD_PROTOTYPE && (_XOPEN_SOURCE - 0) < 500 */
#if defined (ACE_LACKS_GETPGID_PROTOTYPE) && \
!defined (_XOPEN_SOURCE) && !defined (_XOPEN_SOURCE_EXTENDED)
extern "C" pid_t getpgid (pid_t pid);
#endif /* ACE_LACKS_GETPGID_PROTOTYPE &&
!_XOPEN_SOURCE && !_XOPEN_SOURCE_EXTENDED */
#if !defined (_LARGEFILE64_SOURCE)
# if defined (ACE_LACKS_LSEEK64_PROTOTYPE) && \
defined (ACE_LACKS_LLSEEK_PROTOTYPE)
# error Define either ACE_LACKS_LSEEK64_PROTOTYPE or ACE_LACKS_LLSEEK_PROTOTYPE, not both!
# elif defined (ACE_LACKS_LSEEK64_PROTOTYPE)
extern "C" ACE_LOFF_T lseek64 (int fd, ACE_LOFF_T offset, int whence);
# elif defined (ACE_LACKS_LLSEEK_PROTOTYPE)
extern "C" ACE_LOFF_T llseek (int fd, ACE_LOFF_T offset, int whence);
# endif
#endif /* _LARGEFILE64_SOURCE */
#if !defined (_SC_AIO_MAX)
#define _SC_AIO_MAX 1
#endif /* _SC_AIO_MAX */
#if defined (__BORLANDC__)
# include "ace/os_include/fcntl.h"
# define _chdir chdir
# undef _access
# define _access access
# if (__BORLANDC__ <= 0x540)
# define _getcwd getcwd
# endif
# define _isatty isatty
#endif /* __BORLANDC__ */
#include "ace/post.h"
#endif /* ACE_OS_INCLUDE_UNISTD_H */
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