diff options
Diffstat (limited to 'protocols/Telegram/tgl/libevent/WIN32-Code/tree.h')
| -rw-r--r-- | protocols/Telegram/tgl/libevent/WIN32-Code/tree.h | 677 | 
1 files changed, 0 insertions, 677 deletions
diff --git a/protocols/Telegram/tgl/libevent/WIN32-Code/tree.h b/protocols/Telegram/tgl/libevent/WIN32-Code/tree.h deleted file mode 100644 index 2ccfbf20ac..0000000000 --- a/protocols/Telegram/tgl/libevent/WIN32-Code/tree.h +++ /dev/null @@ -1,677 +0,0 @@ -/*	$OpenBSD: tree.h,v 1.7 2002/10/17 21:51:54 art Exp $	*/ -/* - * Copyright 2002 Niels Provos <provos@citi.umich.edu> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - *    notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - *    notice, this list of conditions and the following disclaimer in the - *    documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef	_SYS_TREE_H_ -#define	_SYS_TREE_H_ - -/* - * This file defines data structures for different types of trees: - * splay trees and red-black trees. - * - * A splay tree is a self-organizing data structure.  Every operation - * on the tree causes a splay to happen.  The splay moves the requested - * node to the root of the tree and partly rebalances it. - * - * This has the benefit that request locality causes faster lookups as - * the requested nodes move to the top of the tree.  On the other hand, - * every lookup causes memory writes. - * - * The Balance Theorem bounds the total access time for m operations - * and n inserts on an initially empty tree as O((m + n)lg n).  The - * amortized cost for a sequence of m accesses to a splay tree is O(lg n); - * - * A red-black tree is a binary search tree with the node color as an - * extra attribute.  It fulfills a set of conditions: - *	- every search path from the root to a leaf consists of the - *	  same number of black nodes, - *	- each red node (except for the root) has a black parent, - *	- each leaf node is black. - * - * Every operation on a red-black tree is bounded as O(lg n). - * The maximum height of a red-black tree is 2lg (n+1). - */ - -#define SPLAY_HEAD(name, type)						\ -struct name {								\ -	struct type *sph_root; /* root of the tree */			\ -} - -#define SPLAY_INITIALIZER(root)						\ -	{ NULL } - -#define SPLAY_INIT(root) do {						\ -	(root)->sph_root = NULL;					\ -} while (0) - -#define SPLAY_ENTRY(type)						\ -struct {								\ -	struct type *spe_left; /* left element */			\ -	struct type *spe_right; /* right element */			\ -} - -#define SPLAY_LEFT(elm, field)		(elm)->field.spe_left -#define SPLAY_RIGHT(elm, field)		(elm)->field.spe_right -#define SPLAY_ROOT(head)		(head)->sph_root -#define SPLAY_EMPTY(head)		(SPLAY_ROOT(head) == NULL) - -/* SPLAY_ROTATE_{LEFT,RIGHT} expect that tmp hold SPLAY_{RIGHT,LEFT} */ -#define SPLAY_ROTATE_RIGHT(head, tmp, field) do {			\ -	SPLAY_LEFT((head)->sph_root, field) = SPLAY_RIGHT(tmp, field);	\ -	SPLAY_RIGHT(tmp, field) = (head)->sph_root;			\ -	(head)->sph_root = tmp;						\ -} while (0) - -#define SPLAY_ROTATE_LEFT(head, tmp, field) do {			\ -	SPLAY_RIGHT((head)->sph_root, field) = SPLAY_LEFT(tmp, field);	\ -	SPLAY_LEFT(tmp, field) = (head)->sph_root;			\ -	(head)->sph_root = tmp;						\ -} while (0) - -#define SPLAY_LINKLEFT(head, tmp, field) do {				\ -	SPLAY_LEFT(tmp, field) = (head)->sph_root;			\ -	tmp = (head)->sph_root;						\ -	(head)->sph_root = SPLAY_LEFT((head)->sph_root, field);		\ -} while (0) - -#define SPLAY_LINKRIGHT(head, tmp, field) do {				\ -	SPLAY_RIGHT(tmp, field) = (head)->sph_root;			\ -	tmp = (head)->sph_root;						\ -	(head)->sph_root = SPLAY_RIGHT((head)->sph_root, field);	\ -} while (0) - -#define SPLAY_ASSEMBLE(head, node, left, right, field) do {		\ -	SPLAY_RIGHT(left, field) = SPLAY_LEFT((head)->sph_root, field);	\ -	SPLAY_LEFT(right, field) = SPLAY_RIGHT((head)->sph_root, field);\ -	SPLAY_LEFT((head)->sph_root, field) = SPLAY_RIGHT(node, field);	\ -	SPLAY_RIGHT((head)->sph_root, field) = SPLAY_LEFT(node, field);	\ -} while (0) - -/* Generates prototypes and inline functions */ - -#define SPLAY_PROTOTYPE(name, type, field, cmp)				\ -void name##_SPLAY(struct name *, struct type *);			\ -void name##_SPLAY_MINMAX(struct name *, int);				\ -struct type *name##_SPLAY_INSERT(struct name *, struct type *);		\ -struct type *name##_SPLAY_REMOVE(struct name *, struct type *);		\ -									\ -/* Finds the node with the same key as elm */				\ -static __inline struct type *						\ -name##_SPLAY_FIND(struct name *head, struct type *elm)			\ -{									\ -	if (SPLAY_EMPTY(head))						\ -		return(NULL);						\ -	name##_SPLAY(head, elm);					\ -	if ((cmp)(elm, (head)->sph_root) == 0)				\ -		return (head->sph_root);				\ -	return (NULL);							\ -}									\ -									\ -static __inline struct type *						\ -name##_SPLAY_NEXT(struct name *head, struct type *elm)			\ -{									\ -	name##_SPLAY(head, elm);					\ -	if (SPLAY_RIGHT(elm, field) != NULL) {				\ -		elm = SPLAY_RIGHT(elm, field);				\ -		while (SPLAY_LEFT(elm, field) != NULL) {		\ -			elm = SPLAY_LEFT(elm, field);			\ -		}							\ -	} else								\ -		elm = NULL;						\ -	return (elm);							\ -}									\ -									\ -static __inline struct type *						\ -name##_SPLAY_MIN_MAX(struct name *head, int val)			\ -{									\ -	name##_SPLAY_MINMAX(head, val);					\ -	return (SPLAY_ROOT(head));					\ -} - -/* Main splay operation. - * Moves node close to the key of elm to top - */ -#define SPLAY_GENERATE(name, type, field, cmp)				\ -struct type *								\ -name##_SPLAY_INSERT(struct name *head, struct type *elm)		\ -{									\ -    if (SPLAY_EMPTY(head)) {						\ -	    SPLAY_LEFT(elm, field) = SPLAY_RIGHT(elm, field) = NULL;	\ -    } else {								\ -	    int __comp;							\ -	    name##_SPLAY(head, elm);					\ -	    __comp = (cmp)(elm, (head)->sph_root);			\ -	    if(__comp < 0) {						\ -		    SPLAY_LEFT(elm, field) = SPLAY_LEFT((head)->sph_root, field);\ -		    SPLAY_RIGHT(elm, field) = (head)->sph_root;		\ -		    SPLAY_LEFT((head)->sph_root, field) = NULL;		\ -	    } else if (__comp > 0) {					\ -		    SPLAY_RIGHT(elm, field) = SPLAY_RIGHT((head)->sph_root, field);\ -		    SPLAY_LEFT(elm, field) = (head)->sph_root;		\ -		    SPLAY_RIGHT((head)->sph_root, field) = NULL;	\ -	    } else							\ -		    return ((head)->sph_root);				\ -    }									\ -    (head)->sph_root = (elm);						\ -    return (NULL);							\ -}									\ -									\ -struct type *								\ -name##_SPLAY_REMOVE(struct name *head, struct type *elm)		\ -{									\ -	struct type *__tmp;						\ -	if (SPLAY_EMPTY(head))						\ -		return (NULL);						\ -	name##_SPLAY(head, elm);					\ -	if ((cmp)(elm, (head)->sph_root) == 0) {			\ -		if (SPLAY_LEFT((head)->sph_root, field) == NULL) {	\ -			(head)->sph_root = SPLAY_RIGHT((head)->sph_root, field);\ -		} else {						\ -			__tmp = SPLAY_RIGHT((head)->sph_root, field);	\ -			(head)->sph_root = SPLAY_LEFT((head)->sph_root, field);\ -			name##_SPLAY(head, elm);			\ -			SPLAY_RIGHT((head)->sph_root, field) = __tmp;	\ -		}							\ -		return (elm);						\ -	}								\ -	return (NULL);							\ -}									\ -									\ -void									\ -name##_SPLAY(struct name *head, struct type *elm)			\ -{									\ -	struct type __node, *__left, *__right, *__tmp;			\ -	int __comp;							\ -\ -	SPLAY_LEFT(&__node, field) = SPLAY_RIGHT(&__node, field) = NULL;\ -	__left = __right = &__node;					\ -\ -	while ((__comp = (cmp)(elm, (head)->sph_root))) {		\ -		if (__comp < 0) {					\ -			__tmp = SPLAY_LEFT((head)->sph_root, field);	\ -			if (__tmp == NULL)				\ -				break;					\ -			if ((cmp)(elm, __tmp) < 0){			\ -				SPLAY_ROTATE_RIGHT(head, __tmp, field);	\ -				if (SPLAY_LEFT((head)->sph_root, field) == NULL)\ -					break;				\ -			}						\ -			SPLAY_LINKLEFT(head, __right, field);		\ -		} else if (__comp > 0) {				\ -			__tmp = SPLAY_RIGHT((head)->sph_root, field);	\ -			if (__tmp == NULL)				\ -				break;					\ -			if ((cmp)(elm, __tmp) > 0){			\ -				SPLAY_ROTATE_LEFT(head, __tmp, field);	\ -				if (SPLAY_RIGHT((head)->sph_root, field) == NULL)\ -					break;				\ -			}						\ -			SPLAY_LINKRIGHT(head, __left, field);		\ -		}							\ -	}								\ -	SPLAY_ASSEMBLE(head, &__node, __left, __right, field);		\ -}									\ -									\ -/* Splay with either the minimum or the maximum element			\ - * Used to find minimum or maximum element in tree.			\ - */									\ -void name##_SPLAY_MINMAX(struct name *head, int __comp) \ -{									\ -	struct type __node, *__left, *__right, *__tmp;			\ -\ -	SPLAY_LEFT(&__node, field) = SPLAY_RIGHT(&__node, field) = NULL;\ -	__left = __right = &__node;					\ -\ -	while (1) {							\ -		if (__comp < 0) {					\ -			__tmp = SPLAY_LEFT((head)->sph_root, field);	\ -			if (__tmp == NULL)				\ -				break;					\ -			if (__comp < 0){				\ -				SPLAY_ROTATE_RIGHT(head, __tmp, field);	\ -				if (SPLAY_LEFT((head)->sph_root, field) == NULL)\ -					break;				\ -			}						\ -			SPLAY_LINKLEFT(head, __right, field);		\ -		} else if (__comp > 0) {				\ -			__tmp = SPLAY_RIGHT((head)->sph_root, field);	\ -			if (__tmp == NULL)				\ -				break;					\ -			if (__comp > 0) {				\ -				SPLAY_ROTATE_LEFT(head, __tmp, field);	\ -				if (SPLAY_RIGHT((head)->sph_root, field) == NULL)\ -					break;				\ -			}						\ -			SPLAY_LINKRIGHT(head, __left, field);		\ -		}							\ -	}								\ -	SPLAY_ASSEMBLE(head, &__node, __left, __right, field);		\ -} - -#define SPLAY_NEGINF	-1 -#define SPLAY_INF	1 - -#define SPLAY_INSERT(name, x, y)	name##_SPLAY_INSERT(x, y) -#define SPLAY_REMOVE(name, x, y)	name##_SPLAY_REMOVE(x, y) -#define SPLAY_FIND(name, x, y)		name##_SPLAY_FIND(x, y) -#define SPLAY_NEXT(name, x, y)		name##_SPLAY_NEXT(x, y) -#define SPLAY_MIN(name, x)		(SPLAY_EMPTY(x) ? NULL	\ -					: name##_SPLAY_MIN_MAX(x, SPLAY_NEGINF)) -#define SPLAY_MAX(name, x)		(SPLAY_EMPTY(x) ? NULL	\ -					: name##_SPLAY_MIN_MAX(x, SPLAY_INF)) - -#define SPLAY_FOREACH(x, name, head)					\ -	for ((x) = SPLAY_MIN(name, head);				\ -	     (x) != NULL;						\ -	     (x) = SPLAY_NEXT(name, head, x)) - -/* Macros that define a red-back tree */ -#define RB_HEAD(name, type)						\ -struct name {								\ -	struct type *rbh_root; /* root of the tree */			\ -} - -#define RB_INITIALIZER(root)						\ -	{ NULL } - -#define RB_INIT(root) do {						\ -	(root)->rbh_root = NULL;					\ -} while (0) - -#define RB_BLACK	0 -#define RB_RED		1 -#define RB_ENTRY(type)							\ -struct {								\ -	struct type *rbe_left;		/* left element */		\ -	struct type *rbe_right;		/* right element */		\ -	struct type *rbe_parent;	/* parent element */		\ -	int rbe_color;			/* node color */		\ -} - -#define RB_LEFT(elm, field)		(elm)->field.rbe_left -#define RB_RIGHT(elm, field)		(elm)->field.rbe_right -#define RB_PARENT(elm, field)		(elm)->field.rbe_parent -#define RB_COLOR(elm, field)		(elm)->field.rbe_color -#define RB_ROOT(head)			(head)->rbh_root -#define RB_EMPTY(head)			(RB_ROOT(head) == NULL) - -#define RB_SET(elm, parent, field) do {					\ -	RB_PARENT(elm, field) = parent;					\ -	RB_LEFT(elm, field) = RB_RIGHT(elm, field) = NULL;		\ -	RB_COLOR(elm, field) = RB_RED;					\ -} while (0) - -#define RB_SET_BLACKRED(black, red, field) do {				\ -	RB_COLOR(black, field) = RB_BLACK;				\ -	RB_COLOR(red, field) = RB_RED;					\ -} while (0) - -#ifndef RB_AUGMENT -#define RB_AUGMENT(x) -#endif - -#define RB_ROTATE_LEFT(head, elm, tmp, field) do {			\ -	(tmp) = RB_RIGHT(elm, field);					\ -	if ((RB_RIGHT(elm, field) = RB_LEFT(tmp, field))) {		\ -		RB_PARENT(RB_LEFT(tmp, field), field) = (elm);		\ -	}								\ -	RB_AUGMENT(elm);						\ -	if ((RB_PARENT(tmp, field) = RB_PARENT(elm, field))) {		\ -		if ((elm) == RB_LEFT(RB_PARENT(elm, field), field))	\ -			RB_LEFT(RB_PARENT(elm, field), field) = (tmp);	\ -		else							\ -			RB_RIGHT(RB_PARENT(elm, field), field) = (tmp);	\ -	} else								\ -		(head)->rbh_root = (tmp);				\ -	RB_LEFT(tmp, field) = (elm);					\ -	RB_PARENT(elm, field) = (tmp);					\ -	RB_AUGMENT(tmp);						\ -	if ((RB_PARENT(tmp, field)))					\ -		RB_AUGMENT(RB_PARENT(tmp, field));			\ -} while (0) - -#define RB_ROTATE_RIGHT(head, elm, tmp, field) do {			\ -	(tmp) = RB_LEFT(elm, field);					\ -	if ((RB_LEFT(elm, field) = RB_RIGHT(tmp, field))) {		\ -		RB_PARENT(RB_RIGHT(tmp, field), field) = (elm);		\ -	}								\ -	RB_AUGMENT(elm);						\ -	if ((RB_PARENT(tmp, field) = RB_PARENT(elm, field))) {		\ -		if ((elm) == RB_LEFT(RB_PARENT(elm, field), field))	\ -			RB_LEFT(RB_PARENT(elm, field), field) = (tmp);	\ -		else							\ -			RB_RIGHT(RB_PARENT(elm, field), field) = (tmp);	\ -	} else								\ -		(head)->rbh_root = (tmp);				\ -	RB_RIGHT(tmp, field) = (elm);					\ -	RB_PARENT(elm, field) = (tmp);					\ -	RB_AUGMENT(tmp);						\ -	if ((RB_PARENT(tmp, field)))					\ -		RB_AUGMENT(RB_PARENT(tmp, field));			\ -} while (0) - -/* Generates prototypes and inline functions */ -#define RB_PROTOTYPE(name, type, field, cmp)				\ -void name##_RB_INSERT_COLOR(struct name *, struct type *);	\ -void name##_RB_REMOVE_COLOR(struct name *, struct type *, struct type *);\ -struct type *name##_RB_REMOVE(struct name *, struct type *);		\ -struct type *name##_RB_INSERT(struct name *, struct type *);		\ -struct type *name##_RB_FIND(struct name *, struct type *);		\ -struct type *name##_RB_NEXT(struct type *);				\ -struct type *name##_RB_MINMAX(struct name *, int);			\ -									\ - -/* Main rb operation. - * Moves node close to the key of elm to top - */ -#define RB_GENERATE(name, type, field, cmp)				\ -void									\ -name##_RB_INSERT_COLOR(struct name *head, struct type *elm)		\ -{									\ -	struct type *parent, *gparent, *tmp;				\ -	while ((parent = RB_PARENT(elm, field)) &&			\ -	    RB_COLOR(parent, field) == RB_RED) {			\ -		gparent = RB_PARENT(parent, field);			\ -		if (parent == RB_LEFT(gparent, field)) {		\ -			tmp = RB_RIGHT(gparent, field);			\ -			if (tmp && RB_COLOR(tmp, field) == RB_RED) {	\ -				RB_COLOR(tmp, field) = RB_BLACK;	\ -				RB_SET_BLACKRED(parent, gparent, field);\ -				elm = gparent;				\ -				continue;				\ -			}						\ -			if (RB_RIGHT(parent, field) == elm) {		\ -				RB_ROTATE_LEFT(head, parent, tmp, field);\ -				tmp = parent;				\ -				parent = elm;				\ -				elm = tmp;				\ -			}						\ -			RB_SET_BLACKRED(parent, gparent, field);	\ -			RB_ROTATE_RIGHT(head, gparent, tmp, field);	\ -		} else {						\ -			tmp = RB_LEFT(gparent, field);			\ -			if (tmp && RB_COLOR(tmp, field) == RB_RED) {	\ -				RB_COLOR(tmp, field) = RB_BLACK;	\ -				RB_SET_BLACKRED(parent, gparent, field);\ -				elm = gparent;				\ -				continue;				\ -			}						\ -			if (RB_LEFT(parent, field) == elm) {		\ -				RB_ROTATE_RIGHT(head, parent, tmp, field);\ -				tmp = parent;				\ -				parent = elm;				\ -				elm = tmp;				\ -			}						\ -			RB_SET_BLACKRED(parent, gparent, field);	\ -			RB_ROTATE_LEFT(head, gparent, tmp, field);	\ -		}							\ -	}								\ -	RB_COLOR(head->rbh_root, field) = RB_BLACK;			\ -}									\ -									\ -void									\ -name##_RB_REMOVE_COLOR(struct name *head, struct type *parent, struct type *elm) \ -{									\ -	struct type *tmp;						\ -	while ((elm == NULL || RB_COLOR(elm, field) == RB_BLACK) &&	\ -	    elm != RB_ROOT(head)) {					\ -		if (RB_LEFT(parent, field) == elm) {			\ -			tmp = RB_RIGHT(parent, field);			\ -			if (RB_COLOR(tmp, field) == RB_RED) {		\ -				RB_SET_BLACKRED(tmp, parent, field);	\ -				RB_ROTATE_LEFT(head, parent, tmp, field);\ -				tmp = RB_RIGHT(parent, field);		\ -			}						\ -			if ((RB_LEFT(tmp, field) == NULL ||		\ -			    RB_COLOR(RB_LEFT(tmp, field), field) == RB_BLACK) &&\ -			    (RB_RIGHT(tmp, field) == NULL ||		\ -			    RB_COLOR(RB_RIGHT(tmp, field), field) == RB_BLACK)) {\ -				RB_COLOR(tmp, field) = RB_RED;		\ -				elm = parent;				\ -				parent = RB_PARENT(elm, field);		\ -			} else {					\ -				if (RB_RIGHT(tmp, field) == NULL ||	\ -				    RB_COLOR(RB_RIGHT(tmp, field), field) == RB_BLACK) {\ -					struct type *oleft;		\ -					if ((oleft = RB_LEFT(tmp, field)))\ -						RB_COLOR(oleft, field) = RB_BLACK;\ -					RB_COLOR(tmp, field) = RB_RED;	\ -					RB_ROTATE_RIGHT(head, tmp, oleft, field);\ -					tmp = RB_RIGHT(parent, field);	\ -				}					\ -				RB_COLOR(tmp, field) = RB_COLOR(parent, field);\ -				RB_COLOR(parent, field) = RB_BLACK;	\ -				if (RB_RIGHT(tmp, field))		\ -					RB_COLOR(RB_RIGHT(tmp, field), field) = RB_BLACK;\ -				RB_ROTATE_LEFT(head, parent, tmp, field);\ -				elm = RB_ROOT(head);			\ -				break;					\ -			}						\ -		} else {						\ -			tmp = RB_LEFT(parent, field);			\ -			if (RB_COLOR(tmp, field) == RB_RED) {		\ -				RB_SET_BLACKRED(tmp, parent, field);	\ -				RB_ROTATE_RIGHT(head, parent, tmp, field);\ -				tmp = RB_LEFT(parent, field);		\ -			}						\ -			if ((RB_LEFT(tmp, field) == NULL ||		\ -			    RB_COLOR(RB_LEFT(tmp, field), field) == RB_BLACK) &&\ -			    (RB_RIGHT(tmp, field) == NULL ||		\ -			    RB_COLOR(RB_RIGHT(tmp, field), field) == RB_BLACK)) {\ -				RB_COLOR(tmp, field) = RB_RED;		\ -				elm = parent;				\ -				parent = RB_PARENT(elm, field);		\ -			} else {					\ -				if (RB_LEFT(tmp, field) == NULL ||	\ -				    RB_COLOR(RB_LEFT(tmp, field), field) == RB_BLACK) {\ -					struct type *oright;		\ -					if ((oright = RB_RIGHT(tmp, field)))\ -						RB_COLOR(oright, field) = RB_BLACK;\ -					RB_COLOR(tmp, field) = RB_RED;	\ -					RB_ROTATE_LEFT(head, tmp, oright, field);\ -					tmp = RB_LEFT(parent, field);	\ -				}					\ -				RB_COLOR(tmp, field) = RB_COLOR(parent, field);\ -				RB_COLOR(parent, field) = RB_BLACK;	\ -				if (RB_LEFT(tmp, field))		\ -					RB_COLOR(RB_LEFT(tmp, field), field) = RB_BLACK;\ -				RB_ROTATE_RIGHT(head, parent, tmp, field);\ -				elm = RB_ROOT(head);			\ -				break;					\ -			}						\ -		}							\ -	}								\ -	if (elm)							\ -		RB_COLOR(elm, field) = RB_BLACK;			\ -}									\ -									\ -struct type *								\ -name##_RB_REMOVE(struct name *head, struct type *elm)			\ -{									\ -	struct type *child, *parent, *old = elm;			\ -	int color;							\ -	if (RB_LEFT(elm, field) == NULL)				\ -		child = RB_RIGHT(elm, field);				\ -	else if (RB_RIGHT(elm, field) == NULL)				\ -		child = RB_LEFT(elm, field);				\ -	else {								\ -		struct type *left;					\ -		elm = RB_RIGHT(elm, field);				\ -		while ((left = RB_LEFT(elm, field)))			\ -			elm = left;					\ -		child = RB_RIGHT(elm, field);				\ -		parent = RB_PARENT(elm, field);				\ -		color = RB_COLOR(elm, field);				\ -		if (child)						\ -			RB_PARENT(child, field) = parent;		\ -		if (parent) {						\ -			if (RB_LEFT(parent, field) == elm)		\ -				RB_LEFT(parent, field) = child;		\ -			else						\ -				RB_RIGHT(parent, field) = child;	\ -			RB_AUGMENT(parent);				\ -		} else							\ -			RB_ROOT(head) = child;				\ -		if (RB_PARENT(elm, field) == old)			\ -			parent = elm;					\ -		(elm)->field = (old)->field;				\ -		if (RB_PARENT(old, field)) {				\ -			if (RB_LEFT(RB_PARENT(old, field), field) == old)\ -				RB_LEFT(RB_PARENT(old, field), field) = elm;\ -			else						\ -				RB_RIGHT(RB_PARENT(old, field), field) = elm;\ -			RB_AUGMENT(RB_PARENT(old, field));		\ -		} else							\ -			RB_ROOT(head) = elm;				\ -		RB_PARENT(RB_LEFT(old, field), field) = elm;		\ -		if (RB_RIGHT(old, field))				\ -			RB_PARENT(RB_RIGHT(old, field), field) = elm;	\ -		if (parent) {						\ -			left = parent;					\ -			do {						\ -				RB_AUGMENT(left);			\ -			} while ((left = RB_PARENT(left, field)));	\ -		}							\ -		goto color;						\ -	}								\ -	parent = RB_PARENT(elm, field);					\ -	color = RB_COLOR(elm, field);					\ -	if (child)							\ -		RB_PARENT(child, field) = parent;			\ -	if (parent) {							\ -		if (RB_LEFT(parent, field) == elm)			\ -			RB_LEFT(parent, field) = child;			\ -		else							\ -			RB_RIGHT(parent, field) = child;		\ -		RB_AUGMENT(parent);					\ -	} else								\ -		RB_ROOT(head) = child;					\ -color:									\ -	if (color == RB_BLACK)						\ -		name##_RB_REMOVE_COLOR(head, parent, child);		\ -	return (old);							\ -}									\ -									\ -/* Inserts a node into the RB tree */					\ -struct type *								\ -name##_RB_INSERT(struct name *head, struct type *elm)			\ -{									\ -	struct type *tmp;						\ -	struct type *parent = NULL;					\ -	int comp = 0;							\ -	tmp = RB_ROOT(head);						\ -	while (tmp) {							\ -		parent = tmp;						\ -		comp = (cmp)(elm, parent);				\ -		if (comp < 0)						\ -			tmp = RB_LEFT(tmp, field);			\ -		else if (comp > 0)					\ -			tmp = RB_RIGHT(tmp, field);			\ -		else							\ -			return (tmp);					\ -	}								\ -	RB_SET(elm, parent, field);					\ -	if (parent != NULL) {						\ -		if (comp < 0)						\ -			RB_LEFT(parent, field) = elm;			\ -		else							\ -			RB_RIGHT(parent, field) = elm;			\ -		RB_AUGMENT(parent);					\ -	} else								\ -		RB_ROOT(head) = elm;					\ -	name##_RB_INSERT_COLOR(head, elm);				\ -	return (NULL);							\ -}									\ -									\ -/* Finds the node with the same key as elm */				\ -struct type *								\ -name##_RB_FIND(struct name *head, struct type *elm)			\ -{									\ -	struct type *tmp = RB_ROOT(head);				\ -	int comp;							\ -	while (tmp) {							\ -		comp = cmp(elm, tmp);					\ -		if (comp < 0)						\ -			tmp = RB_LEFT(tmp, field);			\ -		else if (comp > 0)					\ -			tmp = RB_RIGHT(tmp, field);			\ -		else							\ -			return (tmp);					\ -	}								\ -	return (NULL);							\ -}									\ -									\ -struct type *								\ -name##_RB_NEXT(struct type *elm)					\ -{									\ -	if (RB_RIGHT(elm, field)) {					\ -		elm = RB_RIGHT(elm, field);				\ -		while (RB_LEFT(elm, field))				\ -			elm = RB_LEFT(elm, field);			\ -	} else {							\ -		if (RB_PARENT(elm, field) &&				\ -		    (elm == RB_LEFT(RB_PARENT(elm, field), field)))	\ -			elm = RB_PARENT(elm, field);			\ -		else {							\ -			while (RB_PARENT(elm, field) &&			\ -			    (elm == RB_RIGHT(RB_PARENT(elm, field), field)))\ -				elm = RB_PARENT(elm, field);		\ -			elm = RB_PARENT(elm, field);			\ -		}							\ -	}								\ -	return (elm);							\ -}									\ -									\ -struct type *								\ -name##_RB_MINMAX(struct name *head, int val)				\ -{									\ -	struct type *tmp = RB_ROOT(head);				\ -	struct type *parent = NULL;					\ -	while (tmp) {							\ -		parent = tmp;						\ -		if (val < 0)						\ -			tmp = RB_LEFT(tmp, field);			\ -		else							\ -			tmp = RB_RIGHT(tmp, field);			\ -	}								\ -	return (parent);						\ -} - -#define RB_NEGINF	-1 -#define RB_INF	1 - -#define RB_INSERT(name, x, y)	name##_RB_INSERT(x, y) -#define RB_REMOVE(name, x, y)	name##_RB_REMOVE(x, y) -#define RB_FIND(name, x, y)	name##_RB_FIND(x, y) -#define RB_NEXT(name, x, y)	name##_RB_NEXT(y) -#define RB_MIN(name, x)		name##_RB_MINMAX(x, RB_NEGINF) -#define RB_MAX(name, x)		name##_RB_MINMAX(x, RB_INF) - -#define RB_FOREACH(x, name, head)					\ -	for ((x) = RB_MIN(name, head);					\ -	     (x) != NULL;						\ -	     (x) = name##_RB_NEXT(x)) - -#endif	/* _SYS_TREE_H_ */  | 
