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-rw-r--r--erts/emulator/beam/hash.h58
1 files changed, 31 insertions, 27 deletions
diff --git a/erts/emulator/beam/hash.h b/erts/emulator/beam/hash.h
index 6dd66fc9b3..d319aaca83 100644
--- a/erts/emulator/beam/hash.h
+++ b/erts/emulator/beam/hash.h
@@ -1,18 +1,19 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 1996-2009. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2016. All Rights Reserved.
*
- * The contents of this file are subject to the Erlang Public License,
- * Version 1.1, (the "License"); you may not use this file except in
- * compliance with the License. You should have received a copy of the
- * Erlang Public License along with this software. If not, it can be
- * retrieved online at http://www.erlang.org/.
- *
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
*
* %CopyrightEnd%
*/
@@ -24,18 +25,19 @@
#ifndef __HASH_H__
#define __HASH_H__
-#ifndef __SYS_H__
#include "sys.h"
-#endif
-
-#include "erl_alloc.h"
typedef unsigned long HashValue;
+typedef struct hash Hash;
typedef int (*HCMP_FUN)(void*, void*);
typedef HashValue (*H_FUN)(void*);
typedef void* (*HALLOC_FUN)(void*);
typedef void (*HFREE_FUN)(void*);
+/* Meta functions */
+typedef void* (*HMALLOC_FUN)(int,size_t);
+typedef void (*HMFREE_FUN)(int,void*);
+typedef int (*HMPRINT_FUN)(fmtfn_t,void*,char*, ...);
/*
** This bucket must be placed in top of
@@ -54,6 +56,9 @@ typedef struct hash_functions
HCMP_FUN cmp;
HALLOC_FUN alloc;
HFREE_FUN free;
+ HMALLOC_FUN meta_alloc;
+ HMFREE_FUN meta_free;
+ HMPRINT_FUN meta_print;
} HashFunctions;
typedef struct {
@@ -64,26 +69,27 @@ typedef struct {
int depth;
} HashInfo;
-typedef struct hash
+struct hash
{
HashFunctions fun; /* Function block */
int is_allocated; /* 0 iff hash structure is on stack or is static */
- ErtsAlcType_t type;
+ int meta_alloc_type; /* argument to pass to meta_alloc and meta_free */
char* name; /* Table name (static string, for debugging) */
int size; /* Number of slots */
- int size20percent; /* 20 percent of number of slots */
- int size80percent; /* 80 percent of number of slots */
- int ix; /* Size index in size table */
- int used; /* Number of slots used */
+ int shrink_threshold;
+ int grow_threshold;
+ int size_ix; /* Size index in size table */
+ int min_size_ix; /* Never shrink table smaller than this */
+ int nobjs; /* Number of objects in table */
HashBucket** bucket; /* Vector of bucket pointers (objects) */
-} Hash;
+};
-Hash* hash_new(ErtsAlcType_t, char*, int, HashFunctions);
-Hash* hash_init(ErtsAlcType_t, Hash*, char*, int, HashFunctions);
+Hash* hash_new(int, char*, int, HashFunctions);
+Hash* hash_init(int, Hash*, char*, int, HashFunctions);
void hash_delete(Hash*);
void hash_get_info(HashInfo*, Hash*);
-void hash_info(int, void *, Hash*);
+void hash_info(fmtfn_t, void *, Hash*);
int hash_table_sz(Hash *);
void* hash_get(Hash*, void*);
@@ -92,6 +98,4 @@ void* hash_erase(Hash*, void*);
void* hash_remove(Hash*, void*);
void hash_foreach(Hash*, void (*func)(void *, void *), void *);
-void erts_hash_merge(Hash* src, Hash* dst);
-
#endif