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Microsoft OS/2 SDK 03-01-1988

/*
 * This is a common include file used by examples REGISTER, ACCESS, and
 * REPLACE  (found in VIOSUB.C).
 * It contains the declaration of the shared memory segment.
 *
 * Copyright (C) Microsoft Corp. 1988
 */

/* size of shared memory segment */
#define SHRSEGSIZE	sizeof(struct ShareRec)

#define SHRSEGNAME	"\\SHAREMEM\\SHARESEG.DAT"	  /* shared seg name */
#define WAITFOREVER	-1L		/* no timeout if semaphore is owned */

struct ShareRec {
	unsigned long	updated;	/* buffer access semaphore */
	unsigned long	mutexsem;	/* buffer access semaphore */
	int		count;		/* buffer write pointer */
	int		totalength;
};

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