X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Futil%2Fhash_table.h;h=eabc88a5906f5d92ad13c1d33b20370ac43db57b;hb=2f4d557a561b468dcbe806e02e703ec7a26791a1;hp=9b67f05bec694ee9e645fa411d923a23b6ced3d5;hpb=efa0aa8ffc63e8fdd23335e67ca76eb358cfd1ac;p=mesa.git

diff --git a/src/util/hash_table.h b/src/util/hash_table.h
index 9b67f05bec6..eabc88a5906 100644
--- a/src/util/hash_table.h
+++ b/src/util/hash_table.h
@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright © 2009,2012 Intel Corporation
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -31,6 +31,7 @@
 #include <stdlib.h>
 #include <inttypes.h>
 #include <stdbool.h>
+#include "c99_compat.h"
 #include "macros.h"
 
 #ifdef __cplusplus
@@ -45,10 +46,13 @@ struct hash_entry {
 
 struct hash_table {
    struct hash_entry *table;
+   uint32_t (*key_hash_function)(const void *key);
    bool (*key_equals_function)(const void *a, const void *b);
    const void *deleted_key;
    uint32_t size;
    uint32_t rehash;
+   uint64_t size_magic;
+   uint64_t rehash_magic;
    uint32_t max_entries;
    uint32_t size_index;
    uint32_t entries;
@@ -57,21 +61,45 @@ struct hash_table {
 
 struct hash_table *
 _mesa_hash_table_create(void *mem_ctx,
+                        uint32_t (*key_hash_function)(const void *key),
                         bool (*key_equals_function)(const void *a,
                                                     const void *b));
+
+bool
+_mesa_hash_table_init(struct hash_table *ht,
+                      void *mem_ctx,
+                      uint32_t (*key_hash_function)(const void *key),
+                      bool (*key_equals_function)(const void *a,
+                                                  const void *b));
+
+struct hash_table *
+_mesa_hash_table_clone(struct hash_table *src, void *dst_mem_ctx);
 void _mesa_hash_table_destroy(struct hash_table *ht,
                               void (*delete_function)(struct hash_entry *entry));
+void _mesa_hash_table_clear(struct hash_table *ht,
+                            void (*delete_function)(struct hash_entry *entry));
 void _mesa_hash_table_set_deleted_key(struct hash_table *ht,
                                       const void *deleted_key);
 
+static inline uint32_t _mesa_hash_table_num_entries(struct hash_table *ht)
+{
+   return ht->entries;
+}
+
+struct hash_entry *
+_mesa_hash_table_insert(struct hash_table *ht, const void *key, void *data);
 struct hash_entry *
-_mesa_hash_table_insert(struct hash_table *ht, uint32_t hash,
-                        const void *key, void *data);
+_mesa_hash_table_insert_pre_hashed(struct hash_table *ht, uint32_t hash,
+                                   const void *key, void *data);
 struct hash_entry *
-_mesa_hash_table_search(struct hash_table *ht, uint32_t hash,
-                        const void *key);
+_mesa_hash_table_search(struct hash_table *ht, const void *key);
+struct hash_entry *
+_mesa_hash_table_search_pre_hashed(struct hash_table *ht, uint32_t hash,
+                                  const void *key);
 void _mesa_hash_table_remove(struct hash_table *ht,
                              struct hash_entry *entry);
+void _mesa_hash_table_remove_key(struct hash_table *ht,
+                                 const void *key);
 
 struct hash_entry *_mesa_hash_table_next_entry(struct hash_table *ht,
                                                struct hash_entry *entry);
@@ -80,25 +108,73 @@ _mesa_hash_table_random_entry(struct hash_table *ht,
                               bool (*predicate)(struct hash_entry *entry));
 
 uint32_t _mesa_hash_data(const void *data, size_t size);
-uint32_t _mesa_hash_string(const char *key);
+
+uint32_t _mesa_hash_int(const void *key);
+uint32_t _mesa_hash_uint(const void *key);
+uint32_t _mesa_hash_u32(const void *key);
+uint32_t _mesa_hash_string(const void *key);
+uint32_t _mesa_hash_pointer(const void *pointer);
+
+bool _mesa_key_int_equal(const void *a, const void *b);
+bool _mesa_key_uint_equal(const void *a, const void *b);
+bool _mesa_key_u32_equal(const void *a, const void *b);
 bool _mesa_key_string_equal(const void *a, const void *b);
 bool _mesa_key_pointer_equal(const void *a, const void *b);
 
-static inline uint32_t _mesa_hash_pointer(const void *pointer)
-{
-   return _mesa_hash_data(&pointer, sizeof(pointer));
-}
+struct hash_table *
+_mesa_pointer_hash_table_create(void *mem_ctx);
 
 /**
  * This foreach function is safe against deletion (which just replaces
  * an entry's data with the deleted marker), but not against insertion
  * (which may rehash the table, making entry a dangling pointer).
  */
-#define hash_table_foreach(ht, entry)                   \
-   for (entry = _mesa_hash_table_next_entry(ht, NULL);  \
-        entry != NULL;                                  \
+#define hash_table_foreach(ht, entry)                                      \
+   for (struct hash_entry *entry = _mesa_hash_table_next_entry(ht, NULL);  \
+        entry != NULL;                                                     \
         entry = _mesa_hash_table_next_entry(ht, entry))
 
+static inline void
+hash_table_call_foreach(struct hash_table *ht,
+                        void (*callback)(const void *key,
+                                         void *data,
+                                         void *closure),
+                        void *closure)
+{
+   hash_table_foreach(ht, entry)
+      callback(entry->key, entry->data, closure);
+}
+
+/**
+ * Hash table wrapper which supports 64-bit keys.
+ */
+struct hash_table_u64 {
+   struct hash_table *table;
+   void *freed_key_data;
+   void *deleted_key_data;
+};
+
+struct hash_table_u64 *
+_mesa_hash_table_u64_create(void *mem_ctx);
+
+void
+_mesa_hash_table_u64_destroy(struct hash_table_u64 *ht,
+                             void (*delete_function)(struct hash_entry *entry));
+
+void
+_mesa_hash_table_u64_insert(struct hash_table_u64 *ht, uint64_t key,
+                            void *data);
+
+void *
+_mesa_hash_table_u64_search(struct hash_table_u64 *ht, uint64_t key);
+
+void
+_mesa_hash_table_u64_remove(struct hash_table_u64 *ht, uint64_t key);
+
+void
+_mesa_hash_table_u64_clear(struct hash_table_u64 *ht,
+                           void (*delete_function)(struct hash_entry *entry));
+
 #ifdef __cplusplus
 } /* extern C */
 #endif