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authorneal <neal>2007-07-30 15:25:14 +0000
committerneal <neal>2007-07-30 15:25:14 +0000
commitaf79552985d853a438feb3a00ba762b97d5f203f (patch)
tree56f7730d53ac10f2b1c5b54b9468ba3aafef4430 /libhurd-btree
parent11347b8ad0317dd4ba81b24339433e08b3a2b88f (diff)
2007-07-30 Neal H. Walfield <neal@gnu.org>
* btree.h (offsetof) [! offsetof]: Define. (tree_init): Add prototype. (maybe_split_internal): Likewise. (find_internal): Likewise. (find): Likewise. (insert): Likewise. (first): Likewise. (next): Likewise.
Diffstat (limited to 'libhurd-btree')
-rw-r--r--libhurd-btree/ChangeLog11
-rw-r--r--libhurd-btree/btree.h55
2 files changed, 50 insertions, 16 deletions
diff --git a/libhurd-btree/ChangeLog b/libhurd-btree/ChangeLog
index f102024..c5ec779 100644
--- a/libhurd-btree/ChangeLog
+++ b/libhurd-btree/ChangeLog
@@ -1,3 +1,14 @@
+2007-07-30 Neal H. Walfield <neal@gnu.org>
+
+ * btree.h (offsetof) [! offsetof]: Define.
+ (tree_init): Add prototype.
+ (maybe_split_internal): Likewise.
+ (find_internal): Likewise.
+ (find): Likewise.
+ (insert): Likewise.
+ (first): Likewise.
+ (next): Likewise.
+
2004-12-25 Neal H. Walfield <neal@gnu.org>
* btree.h (BTREE_CLASS): Rename from BTREE_NODE_CLASS.
diff --git a/libhurd-btree/btree.h b/libhurd-btree/btree.h
index 57af768..9c238e4 100644
--- a/libhurd-btree/btree.h
+++ b/libhurd-btree/btree.h
@@ -1,23 +1,21 @@
/* Balanced tree insertion and deletion routines.
- Copyright (C) 2004 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2007 Free Software Foundation, Inc.
Written by Neal H. Walfield <neal@gnu.org>.
This file is part of the GNU Hurd.
- The GNU Hurd is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2, or (at
- your option) any later version.
-
- The GNU Hurd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
+ The GNU Hurd is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ The GNU Hurd is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
You should have received a copy of the GNU General Public License
- along with the GNU Hurd; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
- USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
/* Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -72,6 +70,14 @@
#ifndef BTREE_EXTERN_INLINE
# define BTREE_EXTERN_INLINE extern inline
#endif
+
+#ifndef offsetof
+#ifdef __compiler_offsetof
+#define offsetof(TYPE,MEMBER) __compiler_offsetof(TYPE,MEMBER)
+#else
+#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
+#endif
+#endif
/* If BTREE_NAME_PREFIX is set then all functions and types will its
value plus _ prefixed to their names. For example, setting it to
@@ -137,6 +143,7 @@ typedef int (*BTREE_(key_compare_t)) (const void *a, const void *b);
/* Initialize a btree data structure. (NB: nodes needn't be
initialized.) */
+BTREE_EXTERN_INLINE void BTREE_(tree_init) (BTREE_(t) *btree);
BTREE_EXTERN_INLINE void
BTREE_(tree_init) (BTREE_(t) *btree)
{
@@ -170,6 +177,9 @@ extern void BTREE_(maybe_split2_internal) (BTREE_(t) *tree,
This evaluates the "possibly" predicate described above. If it
true then we make the actual function call and do the real work
there. */
+BTREE_EXTERN_INLINE void BTREE_(maybe_split_internal) (BTREE_(t) *tree,
+ BTREE_(node_t) *node,
+ int force);
BTREE_EXTERN_INLINE void
BTREE_(maybe_split_internal) (BTREE_(t) *tree, BTREE_(node_t) *node,
int force)
@@ -202,6 +212,11 @@ BTREE_EXTERN_INLINE error_t
BTREE_(find_internal) (BTREE_(t) *btree, BTREE_(key_compare_t) compare,
size_t key_offset, const void *key,
BTREE_(node_t) ***nodepp, BTREE_(node_t) **predp,
+ BTREE_(node_t) **succp, BTREE_(node_t) **parentp);
+BTREE_EXTERN_INLINE error_t
+BTREE_(find_internal) (BTREE_(t) *btree, BTREE_(key_compare_t) compare,
+ size_t key_offset, const void *key,
+ BTREE_(node_t) ***nodepp, BTREE_(node_t) **predp,
BTREE_(node_t) **succp, BTREE_(node_t) **parentp)
{
int r;
@@ -252,7 +267,10 @@ BTREE_(find_internal) (BTREE_(t) *btree, BTREE_(key_compare_t) compare,
NULL. */
BTREE_EXTERN_INLINE BTREE_(node_t) *
BTREE_(find) (BTREE_(t) *btree, BTREE_(key_compare_t) compare,
- size_t key_offset, const void *key)
+ size_t key_offset, const void *key);
+BTREE_EXTERN_INLINE BTREE_(node_t) *
+BTREE_(find) (BTREE_(t) *btree, BTREE_(key_compare_t) compare,
+ size_t key_offset, const void *key)
{
error_t err;
BTREE_(node_t) **nodep, *node, *pred, *succ, *parent;
@@ -271,7 +289,10 @@ BTREE_(find) (BTREE_(t) *btree, BTREE_(key_compare_t) compare,
the tree. */
BTREE_EXTERN_INLINE error_t
BTREE_(insert) (BTREE_(t) *btree, BTREE_(key_compare_t) compare,
- size_t key_offset, BTREE_(node_t) *newnode)
+ size_t key_offset, BTREE_(node_t) *newnode);
+BTREE_EXTERN_INLINE error_t
+BTREE_(insert) (BTREE_(t) *btree, BTREE_(key_compare_t) compare,
+ size_t key_offset, BTREE_(node_t) *newnode)
{
error_t err;
BTREE_(node_t) **nodep, *pred, *succ, *parent;
@@ -335,6 +356,7 @@ extern void BTREE_(detach) (BTREE_(t) *btree, BTREE_(node_t) *node);
/* Return the node with the smallest key in tree BTREE or NULL if the
tree is empty. */
+BTREE_EXTERN_INLINE BTREE_(node_t) *BTREE_(first) (BTREE_(t) *btree);
BTREE_EXTERN_INLINE BTREE_(node_t) *
BTREE_(first) (BTREE_(t) *btree)
{
@@ -353,6 +375,7 @@ BTREE_(first) (BTREE_(t) *btree)
/* Return the node following node NODE or NULL if NODE is the last
(i.e. largest) node in the tree. This function is guaranteed to
never touch a node which is lexically less than NODE. */
+BTREE_EXTERN_INLINE BTREE_(node_t) *BTREE_(next) (BTREE_(node_t) *node);
BTREE_EXTERN_INLINE BTREE_(node_t) *
BTREE_(next) (BTREE_(node_t) *node)
{