#include <lib/openbsd-tree.h>
-static inline struct rb_entry *rb_n2e(const struct rb_type *t, void *node)
+static inline struct rb_entry *
+rb_n2e(const struct rb_type *t, void *node)
{
unsigned long addr = (unsigned long)node;
return ((struct rb_entry *)(addr + t->t_offset));
}
-static inline void *rb_e2n(const struct rb_type *t, struct rb_entry *rbe)
+static inline void *
+rb_e2n(const struct rb_type *t, struct rb_entry *rbe)
{
unsigned long addr = (unsigned long)rbe;
#define RBH_ROOT(_rbt) (_rbt)->rbt_root
-static inline void rbe_set(struct rb_entry *rbe, struct rb_entry *parent)
+static inline void
+rbe_set(struct rb_entry *rbe, struct rb_entry *parent)
{
RBE_PARENT(rbe) = parent;
RBE_LEFT(rbe) = RBE_RIGHT(rbe) = NULL;
RBE_COLOR(rbe) = RB_RED;
}
-static inline void rbe_set_blackred(struct rb_entry *black,
- struct rb_entry *red)
+static inline void
+rbe_set_blackred(struct rb_entry *black, struct rb_entry *red)
{
RBE_COLOR(black) = RB_BLACK;
RBE_COLOR(red) = RB_RED;
}
-static inline void rbe_augment(const struct rb_type *t, struct rb_entry *rbe)
+static inline void
+rbe_augment(const struct rb_type *t, struct rb_entry *rbe)
{
(*t->t_augment)(rb_e2n(t, rbe));
}
-static inline void rbe_if_augment(const struct rb_type *t, struct rb_entry *rbe)
+static inline void
+rbe_if_augment(const struct rb_type *t, struct rb_entry *rbe)
{
if (t->t_augment != NULL)
rbe_augment(t, rbe);
}
-static inline void rbe_rotate_left(const struct rb_type *t,
- struct rbt_tree *rbt, struct rb_entry *rbe)
+static inline void
+rbe_rotate_left(const struct rb_type *t, struct rbt_tree *rbt,
+ struct rb_entry *rbe)
{
struct rb_entry *parent;
struct rb_entry *tmp;
}
}
-static inline void rbe_rotate_right(const struct rb_type *t,
- struct rbt_tree *rbt, struct rb_entry *rbe)
+static inline void
+rbe_rotate_right(const struct rb_type *t, struct rbt_tree *rbt,
+ struct rb_entry *rbe)
{
struct rb_entry *parent;
struct rb_entry *tmp;
}
}
-static inline void rbe_insert_color(const struct rb_type *t,
- struct rbt_tree *rbt, struct rb_entry *rbe)
+static inline void
+rbe_insert_color(const struct rb_type *t, struct rbt_tree *rbt,
+ struct rb_entry *rbe)
{
struct rb_entry *parent, *gparent, *tmp;
- while ((parent = RBE_PARENT(rbe)) != NULL
- && RBE_COLOR(parent) == RB_RED) {
+ while ((parent = RBE_PARENT(rbe)) != NULL &&
+ RBE_COLOR(parent) == RB_RED) {
gparent = RBE_PARENT(parent);
if (parent == RBE_LEFT(gparent)) {
RBE_COLOR(RBH_ROOT(rbt)) = RB_BLACK;
}
-static inline void rbe_remove_color(const struct rb_type *t,
- struct rbt_tree *rbt,
- struct rb_entry *parent,
- struct rb_entry *rbe)
+static inline void
+rbe_remove_color(const struct rb_type *t, struct rbt_tree *rbt,
+ struct rb_entry *parent, struct rb_entry *rbe)
{
struct rb_entry *tmp;
if (parent == NULL)
return;
- while ((rbe == NULL || RBE_COLOR(rbe) == RB_BLACK)
- && rbe != RBH_ROOT(rbt)) {
+ while ((rbe == NULL || RBE_COLOR(rbe) == RB_BLACK) &&
+ rbe != RBH_ROOT(rbt)) {
if (RBE_LEFT(parent) == rbe) {
tmp = RBE_RIGHT(parent);
if (RBE_COLOR(tmp) == RB_RED) {
rbe_rotate_left(t, rbt, parent);
tmp = RBE_RIGHT(parent);
}
- if ((RBE_LEFT(tmp) == NULL
- || RBE_COLOR(RBE_LEFT(tmp)) == RB_BLACK)
- && (RBE_RIGHT(tmp) == NULL
- || RBE_COLOR(RBE_RIGHT(tmp)) == RB_BLACK)) {
+ if ((RBE_LEFT(tmp) == NULL ||
+ RBE_COLOR(RBE_LEFT(tmp)) == RB_BLACK) &&
+ (RBE_RIGHT(tmp) == NULL ||
+ RBE_COLOR(RBE_RIGHT(tmp)) == RB_BLACK)) {
RBE_COLOR(tmp) = RB_RED;
rbe = parent;
parent = RBE_PARENT(rbe);
} else {
- if (RBE_RIGHT(tmp) == NULL
- || RBE_COLOR(RBE_RIGHT(tmp)) == RB_BLACK) {
+ if (RBE_RIGHT(tmp) == NULL ||
+ RBE_COLOR(RBE_RIGHT(tmp)) == RB_BLACK) {
struct rb_entry *oleft;
oleft = RBE_LEFT(tmp);
tmp = RBE_LEFT(parent);
}
- if ((RBE_LEFT(tmp) == NULL
- || RBE_COLOR(RBE_LEFT(tmp)) == RB_BLACK)
- && (RBE_RIGHT(tmp) == NULL
- || RBE_COLOR(RBE_RIGHT(tmp)) == RB_BLACK)) {
+ if ((RBE_LEFT(tmp) == NULL ||
+ RBE_COLOR(RBE_LEFT(tmp)) == RB_BLACK) &&
+ (RBE_RIGHT(tmp) == NULL ||
+ RBE_COLOR(RBE_RIGHT(tmp)) == RB_BLACK)) {
RBE_COLOR(tmp) = RB_RED;
rbe = parent;
parent = RBE_PARENT(rbe);
} else {
- if (RBE_LEFT(tmp) == NULL
- || RBE_COLOR(RBE_LEFT(tmp)) == RB_BLACK) {
+ if (RBE_LEFT(tmp) == NULL ||
+ RBE_COLOR(RBE_LEFT(tmp)) == RB_BLACK) {
struct rb_entry *oright;
oright = RBE_RIGHT(tmp);
return (old);
}
-void *_rb_remove(const struct rb_type *t, struct rbt_tree *rbt, void *elm)
+void *
+_rb_remove(const struct rb_type *t, struct rbt_tree *rbt, void *elm)
{
struct rb_entry *rbe = rb_n2e(t, elm);
struct rb_entry *old;
return (old == NULL ? NULL : rb_e2n(t, old));
}
-void *_rb_insert(const struct rb_type *t, struct rbt_tree *rbt, void *elm)
+void *
+_rb_insert(const struct rb_type *t, struct rbt_tree *rbt, void *elm)
{
struct rb_entry *rbe = rb_n2e(t, elm);
struct rb_entry *tmp;
}
/* Finds the node with the same key as elm */
-void *_rb_find(const struct rb_type *t, struct rbt_tree *rbt, const void *key)
+void *
+_rb_find(const struct rb_type *t, struct rbt_tree *rbt, const void *key)
{
struct rb_entry *tmp = RBH_ROOT(rbt);
void *node;
}
/* Finds the first node greater than or equal to the search key */
-void *_rb_nfind(const struct rb_type *t, struct rbt_tree *rbt, const void *key)
+void *
+_rb_nfind(const struct rb_type *t, struct rbt_tree *rbt, const void *key)
{
struct rb_entry *tmp = RBH_ROOT(rbt);
void *node;
return (res);
}
-void *_rb_next(const struct rb_type *t, void *elm)
+void *
+_rb_next(const struct rb_type *t, void *elm)
{
struct rb_entry *rbe = rb_n2e(t, elm);
while (RBE_LEFT(rbe) != NULL)
rbe = RBE_LEFT(rbe);
} else {
- if (RBE_PARENT(rbe) && (rbe == RBE_LEFT(RBE_PARENT(rbe))))
+ if (RBE_PARENT(rbe) &&
+ (rbe == RBE_LEFT(RBE_PARENT(rbe))))
rbe = RBE_PARENT(rbe);
else {
- while (RBE_PARENT(rbe)
- && (rbe == RBE_RIGHT(RBE_PARENT(rbe))))
+ while (RBE_PARENT(rbe) &&
+ (rbe == RBE_RIGHT(RBE_PARENT(rbe))))
rbe = RBE_PARENT(rbe);
rbe = RBE_PARENT(rbe);
}
return (rbe == NULL ? NULL : rb_e2n(t, rbe));
}
-void *_rb_prev(const struct rb_type *t, void *elm)
+void *
+_rb_prev(const struct rb_type *t, void *elm)
{
struct rb_entry *rbe = rb_n2e(t, elm);
while (RBE_RIGHT(rbe))
rbe = RBE_RIGHT(rbe);
} else {
- if (RBE_PARENT(rbe) && (rbe == RBE_RIGHT(RBE_PARENT(rbe))))
+ if (RBE_PARENT(rbe) &&
+ (rbe == RBE_RIGHT(RBE_PARENT(rbe))))
rbe = RBE_PARENT(rbe);
else {
- while (RBE_PARENT(rbe)
- && (rbe == RBE_LEFT(RBE_PARENT(rbe))))
+ while (RBE_PARENT(rbe) &&
+ (rbe == RBE_LEFT(RBE_PARENT(rbe))))
rbe = RBE_PARENT(rbe);
rbe = RBE_PARENT(rbe);
}
return (rbe == NULL ? NULL : rb_e2n(t, rbe));
}
-void *_rb_root(const struct rb_type *t, struct rbt_tree *rbt)
+void *
+_rb_root(const struct rb_type *t, struct rbt_tree *rbt)
{
struct rb_entry *rbe = RBH_ROOT(rbt);
return (rbe == NULL ? rbe : rb_e2n(t, rbe));
}
-void *_rb_min(const struct rb_type *t, struct rbt_tree *rbt)
+void *
+_rb_min(const struct rb_type *t, struct rbt_tree *rbt)
{
struct rb_entry *rbe = RBH_ROOT(rbt);
struct rb_entry *parent = NULL;
return (parent == NULL ? NULL : rb_e2n(t, parent));
}
-void *_rb_max(const struct rb_type *t, struct rbt_tree *rbt)
+void *
+_rb_max(const struct rb_type *t, struct rbt_tree *rbt)
{
struct rb_entry *rbe = RBH_ROOT(rbt);
struct rb_entry *parent = NULL;
return (parent == NULL ? NULL : rb_e2n(t, parent));
}
-void *_rb_left(const struct rb_type *t, void *node)
+void *
+_rb_left(const struct rb_type *t, void *node)
{
struct rb_entry *rbe = rb_n2e(t, node);
rbe = RBE_LEFT(rbe);
return (rbe == NULL ? NULL : rb_e2n(t, rbe));
}
-void *_rb_right(const struct rb_type *t, void *node)
+void *
+_rb_right(const struct rb_type *t, void *node)
{
struct rb_entry *rbe = rb_n2e(t, node);
rbe = RBE_RIGHT(rbe);
return (rbe == NULL ? NULL : rb_e2n(t, rbe));
}
-void *_rb_parent(const struct rb_type *t, void *node)
+void *
+_rb_parent(const struct rb_type *t, void *node)
{
struct rb_entry *rbe = rb_n2e(t, node);
rbe = RBE_PARENT(rbe);
return (rbe == NULL ? NULL : rb_e2n(t, rbe));
}
-void _rb_set_left(const struct rb_type *t, void *node, void *left)
+void
+_rb_set_left(const struct rb_type *t, void *node, void *left)
{
struct rb_entry *rbe = rb_n2e(t, node);
struct rb_entry *rbl = (left == NULL) ? NULL : rb_n2e(t, left);
RBE_LEFT(rbe) = rbl;
}
-void _rb_set_right(const struct rb_type *t, void *node, void *right)
+void
+_rb_set_right(const struct rb_type *t, void *node, void *right)
{
struct rb_entry *rbe = rb_n2e(t, node);
struct rb_entry *rbr = (right == NULL) ? NULL : rb_n2e(t, right);
RBE_RIGHT(rbe) = rbr;
}
-void _rb_set_parent(const struct rb_type *t, void *node, void *parent)
+void
+_rb_set_parent(const struct rb_type *t, void *node, void *parent)
{
struct rb_entry *rbe = rb_n2e(t, node);
struct rb_entry *rbp = (parent == NULL) ? NULL : rb_n2e(t, parent);
RBE_PARENT(rbe) = rbp;
}
-void _rb_poison(const struct rb_type *t, void *node, unsigned long poison)
+void
+_rb_poison(const struct rb_type *t, void *node, unsigned long poison)
{
struct rb_entry *rbe = rb_n2e(t, node);
RBE_PARENT(rbe) = RBE_LEFT(rbe) = RBE_RIGHT(rbe) =
- (struct rb_entry *)poison;
+ (struct rb_entry *)poison;
}
-int _rb_check(const struct rb_type *t, void *node, unsigned long poison)
+int
+_rb_check(const struct rb_type *t, void *node, unsigned long poison)
{
struct rb_entry *rbe = rb_n2e(t, node);
- return ((unsigned long)RBE_PARENT(rbe) == poison
- && (unsigned long)RBE_LEFT(rbe) == poison
- && (unsigned long)RBE_RIGHT(rbe) == poison);
+ return ((unsigned long)RBE_PARENT(rbe) == poison &&
+ (unsigned long)RBE_LEFT(rbe) == poison &&
+ (unsigned long)RBE_RIGHT(rbe) == poison);
}
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-#ifndef _SYS_TREE_H_
+#ifndef _SYS_TREE_H_
#define _SYS_TREE_H_
/*
* 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_HEAD(name, type) \
+struct name { \
+ struct type *sph_root; /* root of the tree */ \
+}
-#define SPLAY_INITIALIZER(root) \
- { \
- NULL \
- }
+#define SPLAY_INITIALIZER(root) \
+ { NULL }
-#define SPLAY_INIT(root) \
- do { \
- (root)->sph_root = NULL; \
- } while (0)
+#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_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_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)
+#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)); \
- }
+#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_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_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; \
+#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))
/*
#define RB_RED 1
struct rb_type {
- int (*t_compare)(const void *, const void *);
- void (*t_augment)(void *);
- unsigned int t_offset; /* offset of rb_entry in type */
+ int (*t_compare)(const void *, const void *);
+ void (*t_augment)(void *);
+ unsigned int t_offset; /* offset of rb_entry in type */
};
struct rbt_tree {
- struct rb_entry *rbt_root;
+ struct rb_entry *rbt_root;
};
struct rb_entry {
- struct rb_entry *rbt_parent;
- struct rb_entry *rbt_left;
- struct rb_entry *rbt_right;
- unsigned int rbt_color;
+ struct rb_entry *rbt_parent;
+ struct rb_entry *rbt_left;
+ struct rb_entry *rbt_right;
+ unsigned int rbt_color;
};
-#define RB_HEAD(_name, _type) \
- struct _name { \
- struct rbt_tree rbh_root; \
- }
+#define RB_HEAD(_name, _type) \
+struct _name { \
+ struct rbt_tree rbh_root; \
+}
#define RB_ENTRY(_type) struct rb_entry
-static inline void _rb_init(struct rbt_tree *rbt)
+static inline void
+_rb_init(struct rbt_tree *rbt)
{
rbt->rbt_root = NULL;
}
-static inline int _rb_empty(struct rbt_tree *rbt)
+static inline int
+_rb_empty(struct rbt_tree *rbt)
{
return (rbt->rbt_root == NULL);
}
-void *_rb_insert(const struct rb_type *, struct rbt_tree *, void *);
-void *_rb_remove(const struct rb_type *, struct rbt_tree *, void *);
-void *_rb_find(const struct rb_type *, struct rbt_tree *, const void *);
-void *_rb_nfind(const struct rb_type *, struct rbt_tree *, const void *);
-void *_rb_root(const struct rb_type *, struct rbt_tree *);
-void *_rb_min(const struct rb_type *, struct rbt_tree *);
-void *_rb_max(const struct rb_type *, struct rbt_tree *);
-void *_rb_next(const struct rb_type *, void *);
-void *_rb_prev(const struct rb_type *, void *);
-void *_rb_left(const struct rb_type *, void *);
-void *_rb_right(const struct rb_type *, void *);
-void *_rb_parent(const struct rb_type *, void *);
-void _rb_set_left(const struct rb_type *, void *, void *);
-void _rb_set_right(const struct rb_type *, void *, void *);
-void _rb_set_parent(const struct rb_type *, void *, void *);
-void _rb_poison(const struct rb_type *, void *, unsigned long);
-int _rb_check(const struct rb_type *, void *, unsigned long);
+void *_rb_insert(const struct rb_type *, struct rbt_tree *, void *);
+void *_rb_remove(const struct rb_type *, struct rbt_tree *, void *);
+void *_rb_find(const struct rb_type *, struct rbt_tree *, const void *);
+void *_rb_nfind(const struct rb_type *, struct rbt_tree *, const void *);
+void *_rb_root(const struct rb_type *, struct rbt_tree *);
+void *_rb_min(const struct rb_type *, struct rbt_tree *);
+void *_rb_max(const struct rb_type *, struct rbt_tree *);
+void *_rb_next(const struct rb_type *, void *);
+void *_rb_prev(const struct rb_type *, void *);
+void *_rb_left(const struct rb_type *, void *);
+void *_rb_right(const struct rb_type *, void *);
+void *_rb_parent(const struct rb_type *, void *);
+void _rb_set_left(const struct rb_type *, void *, void *);
+void _rb_set_right(const struct rb_type *, void *, void *);
+void _rb_set_parent(const struct rb_type *, void *, void *);
+void _rb_poison(const struct rb_type *, void *, unsigned long);
+int _rb_check(const struct rb_type *, void *, unsigned long);
#define RB_INITIALIZER(_head) { { NULL } }
-#define RB_PROTOTYPE(_name, _type, _field, _cmp) \
- extern const struct rb_type *const _name##_RB_TYPE; \
- \
- __attribute__((__unused__)) static inline void _name##_RB_INIT( \
- struct _name *head) \
- { \
- _rb_init(&head->rbh_root); \
- } \
- \
- __attribute__((__unused__)) static inline struct _type \
- *_name##_RB_INSERT(struct _name *head, struct _type *elm) \
- { \
- return _rb_insert(_name##_RB_TYPE, &head->rbh_root, elm); \
- } \
- \
- __attribute__((__unused__)) static inline struct _type \
- *_name##_RB_REMOVE(struct _name *head, struct _type *elm) \
- { \
- return _rb_remove(_name##_RB_TYPE, &head->rbh_root, elm); \
- } \
- \
- __attribute__((__unused__)) static inline struct _type \
- *_name##_RB_FIND(struct _name *head, const struct _type *key) \
- { \
- return _rb_find(_name##_RB_TYPE, &head->rbh_root, key); \
- } \
- \
- __attribute__((__unused__)) static inline struct _type \
- *_name##_RB_NFIND(struct _name *head, const struct _type *key) \
- { \
- return _rb_nfind(_name##_RB_TYPE, &head->rbh_root, key); \
- } \
- \
- __attribute__((__unused__)) static inline struct _type \
- *_name##_RB_ROOT(struct _name *head) \
- { \
- return _rb_root(_name##_RB_TYPE, &head->rbh_root); \
- } \
- \
- __attribute__((__unused__)) static inline int _name##_RB_EMPTY( \
- struct _name *head) \
- { \
- return _rb_empty(&head->rbh_root); \
- } \
- \
- __attribute__((__unused__)) static inline struct _type \
- *_name##_RB_MIN(struct _name *head) \
- { \
- return _rb_min(_name##_RB_TYPE, &head->rbh_root); \
- } \
- \
- __attribute__((__unused__)) static inline struct _type \
- *_name##_RB_MAX(struct _name *head) \
- { \
- return _rb_max(_name##_RB_TYPE, &head->rbh_root); \
- } \
- \
- __attribute__((__unused__)) static inline struct _type \
- *_name##_RB_NEXT(struct _type *elm) \
- { \
- return _rb_next(_name##_RB_TYPE, elm); \
- } \
- \
- __attribute__((__unused__)) static inline struct _type \
- *_name##_RB_PREV(struct _type *elm) \
- { \
- return _rb_prev(_name##_RB_TYPE, elm); \
- } \
- \
- __attribute__((__unused__)) static inline struct _type \
- *_name##_RB_LEFT(struct _type *elm) \
- { \
- return _rb_left(_name##_RB_TYPE, elm); \
- } \
- \
- __attribute__((__unused__)) static inline struct _type \
- *_name##_RB_RIGHT(struct _type *elm) \
- { \
- return _rb_right(_name##_RB_TYPE, elm); \
- } \
- \
- __attribute__((__unused__)) static inline struct _type \
- *_name##_RB_PARENT(struct _type *elm) \
- { \
- return _rb_parent(_name##_RB_TYPE, elm); \
- } \
- \
- __attribute__((__unused__)) static inline void _name##_RB_SET_LEFT( \
- struct _type *elm, struct _type *left) \
- { \
- return _rb_set_left(_name##_RB_TYPE, elm, left); \
- } \
- \
- __attribute__((__unused__)) static inline void _name##_RB_SET_RIGHT( \
- struct _type *elm, struct _type *right) \
- { \
- return _rb_set_right(_name##_RB_TYPE, elm, right); \
- } \
- \
- __attribute__((__unused__)) static inline void _name##_RB_SET_PARENT( \
- struct _type *elm, struct _type *parent) \
- { \
- return _rb_set_parent(_name##_RB_TYPE, elm, parent); \
- } \
- \
- __attribute__((__unused__)) static inline void _name##_RB_POISON( \
- struct _type *elm, unsigned long poison) \
- { \
- return _rb_poison(_name##_RB_TYPE, elm, poison); \
- } \
- \
- __attribute__((__unused__)) static inline int _name##_RB_CHECK( \
- struct _type *elm, unsigned long poison) \
- { \
- return _rb_check(_name##_RB_TYPE, elm, poison); \
- }
-
-#define RB_GENERATE_INTERNAL(_name, _type, _field, _cmp, _aug) \
- static int _name##_RB_COMPARE(const void *lptr, const void *rptr) \
- { \
- const struct _type *l = lptr, *r = rptr; \
- return _cmp(l, r); \
- } \
- static const struct rb_type _name##_RB_INFO = { \
- _name##_RB_COMPARE, _aug, offsetof(struct _type, _field), \
- }; \
- const struct rb_type *const _name##_RB_TYPE = &_name##_RB_INFO;
-
-#define RB_GENERATE_AUGMENT(_name, _type, _field, _cmp, _aug) \
- static void _name##_RB_AUGMENT(void *ptr) \
- { \
- struct _type *p = ptr; \
- return _aug(p); \
- } \
- RB_GENERATE_INTERNAL(_name, _type, _field, _cmp, _name##_RB_AUGMENT)
-
-#define RB_GENERATE(_name, _type, _field, _cmp) \
- RB_GENERATE_INTERNAL(_name, _type, _field, _cmp, NULL)
+#define RB_PROTOTYPE(_name, _type, _field, _cmp) \
+extern const struct rb_type *const _name##_RB_TYPE; \
+ \
+__attribute__((__unused__)) static inline void \
+_name##_RB_INIT(struct _name *head) \
+{ \
+ _rb_init(&head->rbh_root); \
+} \
+ \
+__attribute__((__unused__)) static inline struct _type * \
+_name##_RB_INSERT(struct _name *head, struct _type *elm) \
+{ \
+ return _rb_insert(_name##_RB_TYPE, &head->rbh_root, elm); \
+} \
+ \
+__attribute__((__unused__)) static inline struct _type * \
+_name##_RB_REMOVE(struct _name *head, struct _type *elm) \
+{ \
+ return _rb_remove(_name##_RB_TYPE, &head->rbh_root, elm); \
+} \
+ \
+__attribute__((__unused__)) static inline struct _type * \
+_name##_RB_FIND(struct _name *head, const struct _type *key) \
+{ \
+ return _rb_find(_name##_RB_TYPE, &head->rbh_root, key); \
+} \
+ \
+__attribute__((__unused__)) static inline struct _type * \
+_name##_RB_NFIND(struct _name *head, const struct _type *key) \
+{ \
+ return _rb_nfind(_name##_RB_TYPE, &head->rbh_root, key); \
+} \
+ \
+__attribute__((__unused__)) static inline struct _type * \
+_name##_RB_ROOT(struct _name *head) \
+{ \
+ return _rb_root(_name##_RB_TYPE, &head->rbh_root); \
+} \
+ \
+__attribute__((__unused__)) static inline int \
+_name##_RB_EMPTY(struct _name *head) \
+{ \
+ return _rb_empty(&head->rbh_root); \
+} \
+ \
+__attribute__((__unused__)) static inline struct _type * \
+_name##_RB_MIN(struct _name *head) \
+{ \
+ return _rb_min(_name##_RB_TYPE, &head->rbh_root); \
+} \
+ \
+__attribute__((__unused__)) static inline struct _type * \
+_name##_RB_MAX(struct _name *head) \
+{ \
+ return _rb_max(_name##_RB_TYPE, &head->rbh_root); \
+} \
+ \
+__attribute__((__unused__)) static inline struct _type * \
+_name##_RB_NEXT(struct _type *elm) \
+{ \
+ return _rb_next(_name##_RB_TYPE, elm); \
+} \
+ \
+__attribute__((__unused__)) static inline struct _type * \
+_name##_RB_PREV(struct _type *elm) \
+{ \
+ return _rb_prev(_name##_RB_TYPE, elm); \
+} \
+ \
+__attribute__((__unused__)) static inline struct _type * \
+_name##_RB_LEFT(struct _type *elm) \
+{ \
+ return _rb_left(_name##_RB_TYPE, elm); \
+} \
+ \
+__attribute__((__unused__)) static inline struct _type * \
+_name##_RB_RIGHT(struct _type *elm) \
+{ \
+ return _rb_right(_name##_RB_TYPE, elm); \
+} \
+ \
+__attribute__((__unused__)) static inline struct _type * \
+_name##_RB_PARENT(struct _type *elm) \
+{ \
+ return _rb_parent(_name##_RB_TYPE, elm); \
+} \
+ \
+__attribute__((__unused__)) static inline void \
+_name##_RB_SET_LEFT(struct _type *elm, struct _type *left) \
+{ \
+ return _rb_set_left(_name##_RB_TYPE, elm, left); \
+} \
+ \
+__attribute__((__unused__)) static inline void \
+_name##_RB_SET_RIGHT(struct _type *elm, struct _type *right) \
+{ \
+ return _rb_set_right(_name##_RB_TYPE, elm, right); \
+} \
+ \
+__attribute__((__unused__)) static inline void \
+_name##_RB_SET_PARENT(struct _type *elm, struct _type *parent) \
+{ \
+ return _rb_set_parent(_name##_RB_TYPE, elm, parent); \
+} \
+ \
+__attribute__((__unused__)) static inline void \
+_name##_RB_POISON(struct _type *elm, unsigned long poison) \
+{ \
+ return _rb_poison(_name##_RB_TYPE, elm, poison); \
+} \
+ \
+__attribute__((__unused__)) static inline int \
+_name##_RB_CHECK(struct _type *elm, unsigned long poison) \
+{ \
+ return _rb_check(_name##_RB_TYPE, elm, poison); \
+}
+
+#define RB_GENERATE_INTERNAL(_name, _type, _field, _cmp, _aug) \
+static int \
+_name##_RB_COMPARE(const void *lptr, const void *rptr) \
+{ \
+ const struct _type *l = lptr, *r = rptr; \
+ return _cmp(l, r); \
+} \
+static const struct rb_type _name##_RB_INFO = { \
+ _name##_RB_COMPARE, \
+ _aug, \
+ offsetof(struct _type, _field), \
+}; \
+const struct rb_type *const _name##_RB_TYPE = &_name##_RB_INFO;
+
+#define RB_GENERATE_AUGMENT(_name, _type, _field, _cmp, _aug) \
+static void \
+_name##_RB_AUGMENT(void *ptr) \
+{ \
+ struct _type *p = ptr; \
+ return _aug(p); \
+} \
+RB_GENERATE_INTERNAL(_name, _type, _field, _cmp, _name##_RB_AUGMENT)
+
+#define RB_GENERATE(_name, _type, _field, _cmp) \
+ RB_GENERATE_INTERNAL(_name, _type, _field, _cmp, NULL)
#define RB_INIT(_name, _head) _name##_RB_INIT(_head)
#define RB_INSERT(_name, _head, _elm) _name##_RB_INSERT(_head, _elm)
#define RB_POISON(_name, _elm, _p) _name##_RB_POISON(_elm, _p)
#define RB_CHECK(_name, _elm, _p) _name##_RB_CHECK(_elm, _p)
-#define RB_FOREACH(_e, _name, _head) \
- for ((_e) = RB_MIN(_name, (_head)); (_e) != NULL; \
+#define RB_FOREACH(_e, _name, _head) \
+ for ((_e) = RB_MIN(_name, (_head)); \
+ (_e) != NULL; \
(_e) = RB_NEXT(_name, (_e)))
-#define RB_FOREACH_SAFE(_e, _name, _head, _n) \
- for ((_e) = RB_MIN(_name, (_head)); \
- (_e) != NULL && ((_n) = RB_NEXT(_name, (_e)), 1); (_e) = (_n))
+#define RB_FOREACH_SAFE(_e, _name, _head, _n) \
+ for ((_e) = RB_MIN(_name, (_head)); \
+ (_e) != NULL && ((_n) = RB_NEXT(_name, (_e)), 1); \
+ (_e) = (_n))
-#define RB_FOREACH_REVERSE(_e, _name, _head) \
- for ((_e) = RB_MAX(_name, (_head)); (_e) != NULL; \
+#define RB_FOREACH_REVERSE(_e, _name, _head) \
+ for ((_e) = RB_MAX(_name, (_head)); \
+ (_e) != NULL; \
(_e) = RB_PREV(_name, (_e)))
-#define RB_FOREACH_REVERSE_SAFE(_e, _name, _head, _n) \
- for ((_e) = RB_MAX(_name, (_head)); \
- (_e) != NULL && ((_n) = RB_PREV(_name, (_e)), 1); (_e) = (_n))
+#define RB_FOREACH_REVERSE_SAFE(_e, _name, _head, _n) \
+ for ((_e) = RB_MAX(_name, (_head)); \
+ (_e) != NULL && ((_n) = RB_PREV(_name, (_e)), 1); \
+ (_e) = (_n))
-#endif /* _SYS_TREE_H_ */
+#endif /* _SYS_TREE_H_ */