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/********************************************************************
* Description: memsem.hh
* Provides function prototypes that let programmers use a block of
* memory to implement a mutual exclusion semaphore.
*
* Derived from a work by Fred Proctor & Will Shackleford
*
* Author:
* License: LGPL Version 2
* System: Linux
*
* Copyright (c) 2004 All rights reserved.
*
* Last change:
********************************************************************/
#ifndef MEMSEM_HH
#define MEMSEM_HH
#include "sem.hh"
/* Take the mutual exclusion semaphore. */
struct mem_access_object {
void *data;
long connection_number;
long total_connections;
double timeout;
double sem_delay;
int read_only;
int split_buffer;
char toggle_bit;
RCS_SEMAPHORE *sem;
};
extern int mem_get_access(struct mem_access_object *mo);
/* Give up the mutual exclusion semaphore. */
extern int mem_release_access(struct mem_access_object *mo);
#endif
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