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/**
* @file
*
* @brief Internal Support for POSIX 1003.1b 6.3.1 - map pages of memory
*
*/
/*
* Copyright (c) 2012 Chris Johns
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifndef _RTEMS_POSIX_MMANIMPL_H
#define _RTEMS_POSIX_MMANIMPL_H
#include <rtems/libio_.h>
#include <rtems/chain.h> /* FIXME: use score chains for proper layering? */
#include <rtems/posix/shm.h>
#ifdef __cplusplus
extern "C" {
#endif
/* FIXME: add Doxygen */
/**
* Every mmap'ed region has a mapping.
*/
typedef struct mmap_mappings_s {
rtems_chain_node node; /**< The mapping chain's node */
void* addr; /**< The address of the mapped memory */
size_t len; /**< The length of memory mapped */
int flags; /**< The mapping flags */
POSIX_Shm_Control *shm; /**< The shared memory object or NULL */
} mmap_mapping;
extern rtems_chain_control mmap_mappings;
static inline void mmap_mappings_lock_obtain( void )
{
rtems_libio_lock();
}
static inline void mmap_mappings_lock_release( void )
{
rtems_libio_unlock();
}
#ifdef __cplusplus
}
#endif
#endif
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