/*
Copyright (c) 1993 Xerox Corporation.  All rights reserved.
*/
/*
$Id$

$Date$
 */

/*
 * PCR support for BSD-style shared memory.
 *
 * Host Dependent.
 */

#ifndef	__PCR_ShmBSD_h
#define __PCR_ShmBSD_h 1

#include <config/PCR_StdTypes.h>
#include <config/PCR_OS.h>

#if (PCR_OS_MMAP)
#   define PCR_ShmBSD_IMPL	1
#else
#   define PCR_ShmBSD_IMPL      0
#endif

#include <th/PCR_ThTypes.h>

#if defined(PCR_OS_SUNOS4) || defined(PCR_OS_SUNOS5)
#   include <host/sys/types.h>
#   include <host/sys/mman.h>
#endif



#if (PCR_ShmBSD_IMPL)

extern PCR_ERes
PCR_ShmBSD_GetPageSize(void);


extern PCR_ERes
PCR_ShmBSD_MMap(
    caddr_t addr,
    size_t len,
    int prot,
    int flags,
    int fd,
    off_t off,
    caddr_t *where
);


extern PCR_ERes
PCR_ShmBSD_MUnmap(
    caddr_t addr,
    size_t len
);


extern PCR_ERes
PCR_ShmBSD_MProtect(
    caddr_t addr,
    size_t len,
    int prot
);





#elif defined(PCR_NO_HOSTDEP_ERR)
    /* ... */
#else
#   error ShmBSD unimplemented for this host / os
#endif

#endif /* !__PCR_ShmBSD_h */

/*
$Log$
*/