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authormarha <marha@users.sourceforge.net>2011-04-27 15:56:59 +0000
committermarha <marha@users.sourceforge.net>2011-04-27 15:56:59 +0000
commit100633b3e7619842f345cb7603b0db6b5761dd11 (patch)
tree3c3af754c7e801c07263269837d6a05072ff834c /mesalib/src/mesa/program/hash_table.h
parent205a4bdae76f287126db9f45a4f0ba631e3efca1 (diff)
parent96d6df5da9cddedf4931bf8e17f96e242467c661 (diff)
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svn merge ^/branches/released .
Diffstat (limited to 'mesalib/src/mesa/program/hash_table.h')
-rw-r--r--mesalib/src/mesa/program/hash_table.h307
1 files changed, 157 insertions, 150 deletions
diff --git a/mesalib/src/mesa/program/hash_table.h b/mesalib/src/mesa/program/hash_table.h
index f1c4fdcd1..3910d0624 100644
--- a/mesalib/src/mesa/program/hash_table.h
+++ b/mesalib/src/mesa/program/hash_table.h
@@ -1,150 +1,157 @@
-/*
- * Copyright © 2008 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-/**
- * \file hash_table.h
- * \brief Implementation of a generic, opaque hash table data type.
- *
- * \author Ian Romanick <ian.d.romanick@intel.com>
- */
-
-#ifndef HASH_TABLE_H
-#define HASH_TABLE_H
-
-struct hash_table;
-
-typedef unsigned (*hash_func_t)(const void *key);
-typedef int (*hash_compare_func_t)(const void *key1, const void *key2);
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * Hash table constructor
- *
- * Creates a hash table with the specified number of buckets. The supplied
- * \c hash and \c compare routines are used when adding elements to the table
- * and when searching for elements in the table.
- *
- * \param num_buckets Number of buckets (bins) in the hash table.
- * \param hash Function used to compute hash value of input keys.
- * \param compare Function used to compare keys.
- */
-extern struct hash_table *hash_table_ctor(unsigned num_buckets,
- hash_func_t hash, hash_compare_func_t compare);
-
-
-/**
- * Release all memory associated with a hash table
- *
- * \warning
- * This function cannot release memory occupied either by keys or data.
- */
-extern void hash_table_dtor(struct hash_table *ht);
-
-
-/**
- * Flush all entries from a hash table
- *
- * \param ht Table to be cleared of its entries.
- */
-extern void hash_table_clear(struct hash_table *ht);
-
-
-/**
- * Search a hash table for a specific element
- *
- * \param ht Table to be searched
- * \param key Key of the desired element
- *
- * \return
- * The \c data value supplied to \c hash_table_insert when the element with
- * the matching key was added. If no matching key exists in the table,
- * \c NULL is returned.
- */
-extern void *hash_table_find(struct hash_table *ht, const void *key);
-
-
-/**
- * Add an element to a hash table
- */
-extern void hash_table_insert(struct hash_table *ht, void *data,
- const void *key);
-
-/**
- * Remove a specific element from a hash table.
- */
-extern void hash_table_remove(struct hash_table *ht, const void *key);
-
-/**
- * Compute hash value of a string
- *
- * Computes the hash value of a string using the DJB2 algorithm developed by
- * Professor Daniel J. Bernstein. It was published on comp.lang.c once upon
- * a time. I was unable to find the original posting in the archives.
- *
- * \param key Pointer to a NUL terminated string to be hashed.
- *
- * \sa hash_table_string_compare
- */
-extern unsigned hash_table_string_hash(const void *key);
-
-
-/**
- * Compare two strings used as keys
- *
- * This is just a macro wrapper around \c strcmp.
- *
- * \sa hash_table_string_hash
- */
-#define hash_table_string_compare ((hash_compare_func_t) strcmp)
-
-
-/**
- * Compute hash value of a pointer
- *
- * \param key Pointer to be used as a hash key
- *
- * \note
- * The memory pointed to by \c key is \b never accessed. The value of \c key
- * itself is used as the hash key
- *
- * \sa hash_table_pointer_compare
- */
-unsigned
-hash_table_pointer_hash(const void *key);
-
-
-/**
- * Compare two pointers used as keys
- *
- * \sa hash_table_pointer_hash
- */
-int
-hash_table_pointer_compare(const void *key1, const void *key2);
-
-#ifdef __cplusplus
-}
-#endif
-#endif /* HASH_TABLE_H */
+/*
+ * Copyright © 2008 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file hash_table.h
+ * \brief Implementation of a generic, opaque hash table data type.
+ *
+ * \author Ian Romanick <ian.d.romanick@intel.com>
+ */
+
+#ifndef HASH_TABLE_H
+#define HASH_TABLE_H
+
+struct hash_table;
+
+typedef unsigned (*hash_func_t)(const void *key);
+typedef int (*hash_compare_func_t)(const void *key1, const void *key2);
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Hash table constructor
+ *
+ * Creates a hash table with the specified number of buckets. The supplied
+ * \c hash and \c compare routines are used when adding elements to the table
+ * and when searching for elements in the table.
+ *
+ * \param num_buckets Number of buckets (bins) in the hash table.
+ * \param hash Function used to compute hash value of input keys.
+ * \param compare Function used to compare keys.
+ */
+extern struct hash_table *hash_table_ctor(unsigned num_buckets,
+ hash_func_t hash, hash_compare_func_t compare);
+
+
+/**
+ * Release all memory associated with a hash table
+ *
+ * \warning
+ * This function cannot release memory occupied either by keys or data.
+ */
+extern void hash_table_dtor(struct hash_table *ht);
+
+
+/**
+ * Flush all entries from a hash table
+ *
+ * \param ht Table to be cleared of its entries.
+ */
+extern void hash_table_clear(struct hash_table *ht);
+
+
+/**
+ * Search a hash table for a specific element
+ *
+ * \param ht Table to be searched
+ * \param key Key of the desired element
+ *
+ * \return
+ * The \c data value supplied to \c hash_table_insert when the element with
+ * the matching key was added. If no matching key exists in the table,
+ * \c NULL is returned.
+ */
+extern void *hash_table_find(struct hash_table *ht, const void *key);
+
+
+/**
+ * Add an element to a hash table
+ */
+extern void hash_table_insert(struct hash_table *ht, void *data,
+ const void *key);
+
+/**
+ * Remove a specific element from a hash table.
+ */
+extern void hash_table_remove(struct hash_table *ht, const void *key);
+
+/**
+ * Compute hash value of a string
+ *
+ * Computes the hash value of a string using the DJB2 algorithm developed by
+ * Professor Daniel J. Bernstein. It was published on comp.lang.c once upon
+ * a time. I was unable to find the original posting in the archives.
+ *
+ * \param key Pointer to a NUL terminated string to be hashed.
+ *
+ * \sa hash_table_string_compare
+ */
+extern unsigned hash_table_string_hash(const void *key);
+
+
+/**
+ * Compare two strings used as keys
+ *
+ * This is just a macro wrapper around \c strcmp.
+ *
+ * \sa hash_table_string_hash
+ */
+#define hash_table_string_compare ((hash_compare_func_t) strcmp)
+
+
+/**
+ * Compute hash value of a pointer
+ *
+ * \param key Pointer to be used as a hash key
+ *
+ * \note
+ * The memory pointed to by \c key is \b never accessed. The value of \c key
+ * itself is used as the hash key
+ *
+ * \sa hash_table_pointer_compare
+ */
+unsigned
+hash_table_pointer_hash(const void *key);
+
+
+/**
+ * Compare two pointers used as keys
+ *
+ * \sa hash_table_pointer_hash
+ */
+int
+hash_table_pointer_compare(const void *key1, const void *key2);
+
+void
+hash_table_call_foreach(struct hash_table *ht,
+ void (*callback)(const void *key,
+ void *data,
+ void *closure),
+ void *closure);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* HASH_TABLE_H */