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// -*- C++ -*-
//=============================================================================
/**
* @file os_sem.h
*
* XSI semaphore facility
*
* $Id$
*
* @author Don Hinton <dhinton@dresystems.com>
* @author This code was originally in various places including ace/OS.h.
*/
//=============================================================================
#ifndef ACE_OS_INCLUDE_SYS_OS_SEM_H
#define ACE_OS_INCLUDE_SYS_OS_SEM_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/os_ipc.h"
#if !defined (ACE_LACKS_SYS_SEM_H)
# include /**/ <sys/sem.h>
#endif /* !ACE_LACKS_SYS_SEM_H */
// Place all additions (especially function declarations) within extern "C" {}
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
#if defined (ACE_LACKS_SEMBUF_T)
struct sembuf
{
/// semaphore #
unsigned short sem_num;
/// semaphore operation
short sem_op;
/// operation flags
short sem_flg;
};
#endif /* ACE_LACKS_SEMBUF_T */
#if !defined (ACE_HAS_SEMUN) || (defined (__GLIBC__) && defined (_SEM_SEMUN_UNDEFINED))
union semun
{
/// value for SETVAL
int val;
/// buffer for IPC_STAT & IPC_SET
struct semid_ds *buf;
/// array for GETALL & SETALL
u_short *array;
};
#endif /* !ACE_HAS_SEMUN || (defined (__GLIBC__) && defined (_SEM_SEMUN_UNDEFINED)) */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#include /**/ "ace/post.h"
#endif /* ACE_OS_INCLUDE_SYS_OS_SEM_H */
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