/* timer.h */

/* EMACS_MODES: c !fill */

/* This file contains the declarations for the timer management package. */

typedef	unsigned	nonce;		/* a timeout nonce */

typedef	struct	timer	{		/* a timer */
	struct	q_elt	tm_elt;		/* next element in queue */
	time_t		tm_time;	/* time the timer expires */
	nonce		tm_nonce;	/* nonce for this timer */
	int		(*tm_subr) ();	/* subroutine to call on timeout */
	caddr_t		tm_arg;		/* arg to pass to subr */
} timer;


typedef	struct	time_q	{		/* the queue of active timers */
	timer	*tmq_head;		/* head of the timer queue */
	timer	*tmq_tail;		/* tail of the timer queue */
	int	tmq_len;		/* number of elements in queue */
} time_q;

typedef	struct	timerid	{		/* a timer identifier */
	timer	*ti_ptr;		/* pointer to the timer */
	nonce	ti_nonce;		/* the timer's nonce */
} timerid;

#define	TRUE	1
#define	FALSE	0