NetBSD/gnu/dist/postfix/util/ring.h

46 lines
810 B
C

#ifndef _RING_H_INCLUDED_
#define _RING_H_INCLUDED_
/*++
/* NAME
/* ring 3h
/* SUMMARY
/* circular list management
/* SYNOPSIS
/* #include <ring.h>
/* DESCRIPTION
/* .nf
/*
* External interface.
*/
typedef struct RING RING;
struct RING {
RING *succ; /* successor */
RING *pred; /* predecessor */
};
extern void ring_init(RING *);
extern void ring_prepend(RING *, RING *);
extern void ring_append(RING *, RING *);
extern void ring_detach(RING *);
#define ring_succ(c) ((c)->succ)
#define ring_pred(c) ((c)->pred)
/* LICENSE
/* .ad
/* .fi
/* The Secure Mailer license must be distributed with this software.
/* AUTHOR(S)
/* Wietse Venema
/* IBM T.J. Watson Research
/* P.O. Box 704
/* Yorktown Heights, NY 10598, USA
/* LAST MODIFICATION
/* Tue Jan 28 16:50:20 EST 1997
/*--*/
#endif