[Mesa-dev] [PATCH 3/6] util: Move the open-addressing linear-probing hash_table to src/util.
Jason Ekstrand
jason at jlekstrand.net
Thu Jul 24 17:15:20 PDT 2014
From: Kenneth Graunke <kenneth at whitecape.org>
This hash table is used in core Mesa, the GLSL compiler, and the i965
driver, which makes it a good candidate for the new src/util module.
It's much faster than program/hash_table.[ch] (see commit 6991c2922f5
for data), and José's u_hash_table.c has a comment saying Gallium should
probably consider switching to a linear probing hash table at some point.
So this seems like the best candidate for a shared data structure.
Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
v2 (Jason Ekstrand): Pick up another hash_table use and patch up scons
Signed-off-by: Jason Ekstrand <jason.ekstrand at intel.com>
---
configure.ac | 4 +-
src/glsl/Makefile.am | 4 -
src/glsl/SConscript | 2 -
src/glsl/ir_variable_refcount.cpp | 2 +-
src/glsl/link_uniform_block_active_visitor.h | 2 +-
src/glsl/link_uniform_blocks.cpp | 2 +-
src/glsl/opt_dead_code.cpp | 2 +-
src/mesa/Makefile.sources | 1 -
src/mesa/drivers/dri/i965/brw_fs.cpp | 2 +-
src/mesa/drivers/dri/i965/intel_fbo.c | 2 +-
src/mesa/main/errors.c | 2 +-
src/mesa/main/hash.c | 2 +-
src/mesa/main/hash_table.c | 440 ---------------------
src/mesa/main/hash_table.h | 106 -----
src/mesa/main/shaderapi.c | 2 +-
src/mesa/main/shared.c | 2 +-
src/mesa/main/syncobj.c | 2 +-
src/mesa/main/tests/Makefile.am | 2 -
src/mesa/main/tests/hash_table/.gitignore | 10 -
src/mesa/main/tests/hash_table/Makefile.am | 44 ---
src/mesa/main/tests/hash_table/collision.c | 80 ----
src/mesa/main/tests/hash_table/delete_and_lookup.c | 74 ----
src/mesa/main/tests/hash_table/delete_management.c | 88 -----
src/mesa/main/tests/hash_table/destroy_callback.c | 66 ----
src/mesa/main/tests/hash_table/insert_and_lookup.c | 57 ---
src/mesa/main/tests/hash_table/insert_many.c | 72 ----
src/mesa/main/tests/hash_table/null_destroy.c | 37 --
src/mesa/main/tests/hash_table/random_entry.c | 88 -----
src/mesa/main/tests/hash_table/remove_null.c | 45 ---
src/mesa/main/tests/hash_table/replacement.c | 64 ---
src/mesa/main/vdpau.c | 2 +-
src/util/Makefile.am | 1 +
src/util/Makefile.sources | 3 +-
src/util/SConscript | 1 +
src/util/hash_table.c | 440 +++++++++++++++++++++
src/util/hash_table.h | 106 +++++
src/util/tests/Makefile.am | 2 +
src/util/tests/hash_table/.gitignore | 10 +
src/util/tests/hash_table/Makefile.am | 46 +++
src/util/tests/hash_table/collision.c | 80 ++++
src/util/tests/hash_table/delete_and_lookup.c | 74 ++++
src/util/tests/hash_table/delete_management.c | 88 +++++
src/util/tests/hash_table/destroy_callback.c | 66 ++++
src/util/tests/hash_table/insert_and_lookup.c | 57 +++
src/util/tests/hash_table/insert_many.c | 72 ++++
src/util/tests/hash_table/null_destroy.c | 37 ++
src/util/tests/hash_table/random_entry.c | 88 +++++
src/util/tests/hash_table/remove_null.c | 45 +++
src/util/tests/hash_table/replacement.c | 64 +++
49 files changed, 1293 insertions(+), 1295 deletions(-)
delete mode 100644 src/mesa/main/hash_table.c
delete mode 100644 src/mesa/main/hash_table.h
delete mode 100644 src/mesa/main/tests/hash_table/.gitignore
delete mode 100644 src/mesa/main/tests/hash_table/Makefile.am
delete mode 100644 src/mesa/main/tests/hash_table/collision.c
delete mode 100644 src/mesa/main/tests/hash_table/delete_and_lookup.c
delete mode 100644 src/mesa/main/tests/hash_table/delete_management.c
delete mode 100644 src/mesa/main/tests/hash_table/destroy_callback.c
delete mode 100644 src/mesa/main/tests/hash_table/insert_and_lookup.c
delete mode 100644 src/mesa/main/tests/hash_table/insert_many.c
delete mode 100644 src/mesa/main/tests/hash_table/null_destroy.c
delete mode 100644 src/mesa/main/tests/hash_table/random_entry.c
delete mode 100644 src/mesa/main/tests/hash_table/remove_null.c
delete mode 100644 src/mesa/main/tests/hash_table/replacement.c
create mode 100644 src/util/hash_table.c
create mode 100644 src/util/hash_table.h
create mode 100644 src/util/tests/hash_table/.gitignore
create mode 100644 src/util/tests/hash_table/Makefile.am
create mode 100644 src/util/tests/hash_table/collision.c
create mode 100644 src/util/tests/hash_table/delete_and_lookup.c
create mode 100644 src/util/tests/hash_table/delete_management.c
create mode 100644 src/util/tests/hash_table/destroy_callback.c
create mode 100644 src/util/tests/hash_table/insert_and_lookup.c
create mode 100644 src/util/tests/hash_table/insert_many.c
create mode 100644 src/util/tests/hash_table/null_destroy.c
create mode 100644 src/util/tests/hash_table/random_entry.c
create mode 100644 src/util/tests/hash_table/remove_null.c
create mode 100644 src/util/tests/hash_table/replacement.c
diff --git a/configure.ac b/configure.ac
index dfbc058..0d1c7bc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2264,9 +2264,9 @@ AC_CONFIG_FILES([Makefile
src/mesa/drivers/osmesa/osmesa.pc
src/mesa/drivers/x11/Makefile
src/mesa/main/tests/Makefile
- src/mesa/main/tests/hash_table/Makefile
src/util/Makefile
- src/util/tests/Makefile])
+ src/util/tests/Makefile
+ src/util/tests/hash_table/Makefile])
dnl Sort the dirs alphabetically
GALLIUM_TARGET_DIRS=`echo $GALLIUM_TARGET_DIRS|tr " " "\n"|sort -u|tr "\n" " "`
diff --git a/src/glsl/Makefile.am b/src/glsl/Makefile.am
index 292c8f7..2a20d11 100644
--- a/src/glsl/Makefile.am
+++ b/src/glsl/Makefile.am
@@ -53,7 +53,6 @@ check_PROGRAMS = \
noinst_PROGRAMS = glsl_compiler
tests_general_ir_test_SOURCES = \
- $(top_srcdir)/src/mesa/main/hash_table.c \
$(top_srcdir)/src/mesa/main/imports.c \
$(top_srcdir)/src/mesa/program/prog_hash_table.c\
$(top_srcdir)/src/mesa/program/symbol_table.c \
@@ -71,7 +70,6 @@ tests_general_ir_test_LDADD = \
$(PTHREAD_LIBS)
tests_uniform_initializer_test_SOURCES = \
- $(top_srcdir)/src/mesa/main/hash_table.c \
$(top_srcdir)/src/mesa/main/imports.c \
$(top_srcdir)/src/mesa/program/prog_hash_table.c\
$(top_srcdir)/src/mesa/program/symbol_table.c \
@@ -120,7 +118,6 @@ libglsl_la_SOURCES = \
$(LIBGLSL_FILES)
glsl_compiler_SOURCES = \
- $(top_srcdir)/src/mesa/main/hash_table.c \
$(top_srcdir)/src/mesa/main/imports.c \
$(top_srcdir)/src/mesa/program/prog_hash_table.c \
$(top_srcdir)/src/mesa/program/symbol_table.c \
@@ -131,7 +128,6 @@ glsl_compiler_LDADD = \
$(PTHREAD_LIBS)
glsl_test_SOURCES = \
- $(top_srcdir)/src/mesa/main/hash_table.c \
$(top_srcdir)/src/mesa/main/imports.c \
$(top_srcdir)/src/mesa/program/prog_hash_table.c \
$(top_srcdir)/src/mesa/program/symbol_table.c \
diff --git a/src/glsl/SConscript b/src/glsl/SConscript
index d1d5993..847e962 100644
--- a/src/glsl/SConscript
+++ b/src/glsl/SConscript
@@ -58,7 +58,6 @@ if env['msvc']:
# Copy these files to avoid generation object files into src/mesa/program
env.Prepend(CPPPATH = ['#src/mesa/main'])
-env.Command('hash_table.c', '#src/mesa/main/hash_table.c', Copy('$TARGET', '$SOURCE'))
env.Command('imports.c', '#src/mesa/main/imports.c', Copy('$TARGET', '$SOURCE'))
# Copy these files to avoid generation object files into src/mesa/program
env.Prepend(CPPPATH = ['#src/mesa/program'])
@@ -68,7 +67,6 @@ env.Command('symbol_table.c', '#src/mesa/program/symbol_table.c', Copy('$TARGET'
compiler_objs = env.StaticObject(source_lists['GLSL_COMPILER_CXX_FILES'])
mesa_objs = env.StaticObject([
- 'hash_table.c',
'imports.c',
'prog_hash_table.c',
'symbol_table.c',
diff --git a/src/glsl/ir_variable_refcount.cpp b/src/glsl/ir_variable_refcount.cpp
index 923eb1a..f67fe67 100644
--- a/src/glsl/ir_variable_refcount.cpp
+++ b/src/glsl/ir_variable_refcount.cpp
@@ -33,7 +33,7 @@
#include "ir_visitor.h"
#include "ir_variable_refcount.h"
#include "glsl_types.h"
-#include "main/hash_table.h"
+#include "util/hash_table.h"
ir_variable_refcount_visitor::ir_variable_refcount_visitor()
{
diff --git a/src/glsl/link_uniform_block_active_visitor.h b/src/glsl/link_uniform_block_active_visitor.h
index 524cd6b..64de826 100644
--- a/src/glsl/link_uniform_block_active_visitor.h
+++ b/src/glsl/link_uniform_block_active_visitor.h
@@ -26,7 +26,7 @@
#define LINK_UNIFORM_BLOCK_ACTIVE_VISITOR_H
#include "ir.h"
-#include "main/hash_table.h"
+#include "util/hash_table.h"
struct link_uniform_block_active {
const glsl_type *type;
diff --git a/src/glsl/link_uniform_blocks.cpp b/src/glsl/link_uniform_blocks.cpp
index fef3626..0b1291d 100644
--- a/src/glsl/link_uniform_blocks.cpp
+++ b/src/glsl/link_uniform_blocks.cpp
@@ -26,7 +26,7 @@
#include "linker.h"
#include "ir_uniform.h"
#include "link_uniform_block_active_visitor.h"
-#include "main/hash_table.h"
+#include "util/hash_table.h"
#include "program.h"
namespace {
diff --git a/src/glsl/opt_dead_code.cpp b/src/glsl/opt_dead_code.cpp
index da90bfb..3df01b4 100644
--- a/src/glsl/opt_dead_code.cpp
+++ b/src/glsl/opt_dead_code.cpp
@@ -31,7 +31,7 @@
#include "ir_visitor.h"
#include "ir_variable_refcount.h"
#include "glsl_types.h"
-#include "main/hash_table.h"
+#include "util/hash_table.h"
static bool debug = false;
diff --git a/src/mesa/Makefile.sources b/src/mesa/Makefile.sources
index 8a04980..5ccce54 100644
--- a/src/mesa/Makefile.sources
+++ b/src/mesa/Makefile.sources
@@ -57,7 +57,6 @@ MAIN_FILES = \
$(SRCDIR)main/getstring.c \
$(SRCDIR)main/glformats.c \
$(SRCDIR)main/hash.c \
- $(SRCDIR)main/hash_table.c \
$(SRCDIR)main/hint.c \
$(SRCDIR)main/histogram.c \
$(SRCDIR)main/image.c \
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 0d1185b..13ef6dd 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -32,7 +32,7 @@ extern "C" {
#include <sys/types.h>
-#include "main/hash_table.h"
+#include "util/hash_table.h"
#include "main/macros.h"
#include "main/shaderobj.h"
#include "main/fbobject.h"
diff --git a/src/mesa/drivers/dri/i965/intel_fbo.c b/src/mesa/drivers/dri/i965/intel_fbo.c
index e43e18b..12bd452 100644
--- a/src/mesa/drivers/dri/i965/intel_fbo.c
+++ b/src/mesa/drivers/dri/i965/intel_fbo.c
@@ -36,9 +36,9 @@
#include "main/context.h"
#include "main/teximage.h"
#include "main/image.h"
-#include "main/hash_table.h"
#include "main/set.h"
#include "main/condrender.h"
+#include "util/hash_table.h"
#include "swrast/swrast.h"
#include "drivers/common/meta.h"
diff --git a/src/mesa/main/errors.c b/src/mesa/main/errors.c
index aa0ff50..9cde1e0 100644
--- a/src/mesa/main/errors.c
+++ b/src/mesa/main/errors.c
@@ -36,7 +36,7 @@
#include "hash.h"
#include "mtypes.h"
#include "version.h"
-#include "hash_table.h"
+#include "util/hash_table.h"
static mtx_t DynamicIDMutex = _MTX_INITIALIZER_NP;
static GLuint NextDynamicID = 1;
diff --git a/src/mesa/main/hash.c b/src/mesa/main/hash.c
index 674c29d..52095f7 100644
--- a/src/mesa/main/hash.c
+++ b/src/mesa/main/hash.c
@@ -37,7 +37,7 @@
#include "glheader.h"
#include "imports.h"
#include "hash.h"
-#include "hash_table.h"
+#include "util/hash_table.h"
/**
* Magic GLuint object name that gets stored outside of the struct hash_table.
diff --git a/src/mesa/main/hash_table.c b/src/mesa/main/hash_table.c
deleted file mode 100644
index b51dada..0000000
--- a/src/mesa/main/hash_table.c
+++ /dev/null
@@ -1,440 +0,0 @@
-/*
- * Copyright © 2009,2012 Intel Corporation
- * Copyright © 1988-2004 Keith Packard and Bart Massey.
- *
- * 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.
- *
- * Except as contained in this notice, the names of the authors
- * or their institutions shall not be used in advertising or
- * otherwise to promote the sale, use or other dealings in this
- * Software without prior written authorization from the
- * authors.
- *
- * Authors:
- * Eric Anholt <eric at anholt.net>
- * Keith Packard <keithp at keithp.com>
- */
-
-/**
- * Implements an open-addressing, linear-reprobing hash table.
- *
- * For more information, see:
- *
- * http://cgit.freedesktop.org/~anholt/hash_table/tree/README
- */
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "main/hash_table.h"
-#include "main/macros.h"
-#include "util/ralloc.h"
-
-static const uint32_t deleted_key_value;
-
-/**
- * From Knuth -- a good choice for hash/rehash values is p, p-2 where
- * p and p-2 are both prime. These tables are sized to have an extra 10%
- * free to avoid exponential performance degradation as the hash table fills
- */
-static const struct {
- uint32_t max_entries, size, rehash;
-} hash_sizes[] = {
- { 2, 5, 3 },
- { 4, 7, 5 },
- { 8, 13, 11 },
- { 16, 19, 17 },
- { 32, 43, 41 },
- { 64, 73, 71 },
- { 128, 151, 149 },
- { 256, 283, 281 },
- { 512, 571, 569 },
- { 1024, 1153, 1151 },
- { 2048, 2269, 2267 },
- { 4096, 4519, 4517 },
- { 8192, 9013, 9011 },
- { 16384, 18043, 18041 },
- { 32768, 36109, 36107 },
- { 65536, 72091, 72089 },
- { 131072, 144409, 144407 },
- { 262144, 288361, 288359 },
- { 524288, 576883, 576881 },
- { 1048576, 1153459, 1153457 },
- { 2097152, 2307163, 2307161 },
- { 4194304, 4613893, 4613891 },
- { 8388608, 9227641, 9227639 },
- { 16777216, 18455029, 18455027 },
- { 33554432, 36911011, 36911009 },
- { 67108864, 73819861, 73819859 },
- { 134217728, 147639589, 147639587 },
- { 268435456, 295279081, 295279079 },
- { 536870912, 590559793, 590559791 },
- { 1073741824, 1181116273, 1181116271},
- { 2147483648ul, 2362232233ul, 2362232231ul}
-};
-
-static int
-entry_is_free(const struct hash_entry *entry)
-{
- return entry->key == NULL;
-}
-
-static int
-entry_is_deleted(const struct hash_table *ht, struct hash_entry *entry)
-{
- return entry->key == ht->deleted_key;
-}
-
-static int
-entry_is_present(const struct hash_table *ht, struct hash_entry *entry)
-{
- return entry->key != NULL && entry->key != ht->deleted_key;
-}
-
-struct hash_table *
-_mesa_hash_table_create(void *mem_ctx,
- bool (*key_equals_function)(const void *a,
- const void *b))
-{
- struct hash_table *ht;
-
- ht = ralloc(mem_ctx, struct hash_table);
- if (ht == NULL)
- return NULL;
-
- ht->size_index = 0;
- ht->size = hash_sizes[ht->size_index].size;
- ht->rehash = hash_sizes[ht->size_index].rehash;
- ht->max_entries = hash_sizes[ht->size_index].max_entries;
- ht->key_equals_function = key_equals_function;
- ht->table = rzalloc_array(ht, struct hash_entry, ht->size);
- ht->entries = 0;
- ht->deleted_entries = 0;
- ht->deleted_key = &deleted_key_value;
-
- if (ht->table == NULL) {
- ralloc_free(ht);
- return NULL;
- }
-
- return ht;
-}
-
-/**
- * Frees the given hash table.
- *
- * If delete_function is passed, it gets called on each entry present before
- * freeing.
- */
-void
-_mesa_hash_table_destroy(struct hash_table *ht,
- void (*delete_function)(struct hash_entry *entry))
-{
- if (!ht)
- return;
-
- if (delete_function) {
- struct hash_entry *entry;
-
- hash_table_foreach(ht, entry) {
- delete_function(entry);
- }
- }
- ralloc_free(ht);
-}
-
-/** Sets the value of the key pointer used for deleted entries in the table.
- *
- * The assumption is that usually keys are actual pointers, so we use a
- * default value of a pointer to an arbitrary piece of storage in the library.
- * But in some cases a consumer wants to store some other sort of value in the
- * table, like a uint32_t, in which case that pointer may conflict with one of
- * their valid keys. This lets that user select a safe value.
- *
- * This must be called before any keys are actually deleted from the table.
- */
-void
-_mesa_hash_table_set_deleted_key(struct hash_table *ht, const void *deleted_key)
-{
- ht->deleted_key = deleted_key;
-}
-
-/**
- * Finds a hash table entry with the given key and hash of that key.
- *
- * Returns NULL if no entry is found. Note that the data pointer may be
- * modified by the user.
- */
-struct hash_entry *
-_mesa_hash_table_search(struct hash_table *ht, uint32_t hash,
- const void *key)
-{
- uint32_t start_hash_address = hash % ht->size;
- uint32_t hash_address = start_hash_address;
-
- do {
- uint32_t double_hash;
-
- struct hash_entry *entry = ht->table + hash_address;
-
- if (entry_is_free(entry)) {
- return NULL;
- } else if (entry_is_present(ht, entry) && entry->hash == hash) {
- if (ht->key_equals_function(key, entry->key)) {
- return entry;
- }
- }
-
- double_hash = 1 + hash % ht->rehash;
-
- hash_address = (hash_address + double_hash) % ht->size;
- } while (hash_address != start_hash_address);
-
- return NULL;
-}
-
-static void
-_mesa_hash_table_rehash(struct hash_table *ht, int new_size_index)
-{
- struct hash_table old_ht;
- struct hash_entry *table, *entry;
-
- if (new_size_index >= ARRAY_SIZE(hash_sizes))
- return;
-
- table = rzalloc_array(ht, struct hash_entry,
- hash_sizes[new_size_index].size);
- if (table == NULL)
- return;
-
- old_ht = *ht;
-
- ht->table = table;
- ht->size_index = new_size_index;
- ht->size = hash_sizes[ht->size_index].size;
- ht->rehash = hash_sizes[ht->size_index].rehash;
- ht->max_entries = hash_sizes[ht->size_index].max_entries;
- ht->entries = 0;
- ht->deleted_entries = 0;
-
- hash_table_foreach(&old_ht, entry) {
- _mesa_hash_table_insert(ht, entry->hash,
- entry->key, entry->data);
- }
-
- ralloc_free(old_ht.table);
-}
-
-/**
- * Inserts the key with the given hash into the table.
- *
- * Note that insertion may rearrange the table on a resize or rehash,
- * so previously found hash_entries are no longer valid after this function.
- */
-struct hash_entry *
-_mesa_hash_table_insert(struct hash_table *ht, uint32_t hash,
- const void *key, void *data)
-{
- uint32_t start_hash_address, hash_address;
-
- if (ht->entries >= ht->max_entries) {
- _mesa_hash_table_rehash(ht, ht->size_index + 1);
- } else if (ht->deleted_entries + ht->entries >= ht->max_entries) {
- _mesa_hash_table_rehash(ht, ht->size_index);
- }
-
- start_hash_address = hash % ht->size;
- hash_address = start_hash_address;
- do {
- struct hash_entry *entry = ht->table + hash_address;
- uint32_t double_hash;
-
- if (!entry_is_present(ht, entry)) {
- if (entry_is_deleted(ht, entry))
- ht->deleted_entries--;
- entry->hash = hash;
- entry->key = key;
- entry->data = data;
- ht->entries++;
- return entry;
- }
-
- /* Implement replacement when another insert happens
- * with a matching key. This is a relatively common
- * feature of hash tables, with the alternative
- * generally being "insert the new value as well, and
- * return it first when the key is searched for".
- *
- * Note that the hash table doesn't have a delete
- * callback. If freeing of old data pointers is
- * required to avoid memory leaks, perform a search
- * before inserting.
- */
- if (entry->hash == hash &&
- ht->key_equals_function(key, entry->key)) {
- entry->key = key;
- entry->data = data;
- return entry;
- }
-
-
- double_hash = 1 + hash % ht->rehash;
-
- hash_address = (hash_address + double_hash) % ht->size;
- } while (hash_address != start_hash_address);
-
- /* We could hit here if a required resize failed. An unchecked-malloc
- * application could ignore this result.
- */
- return NULL;
-}
-
-/**
- * This function deletes the given hash table entry.
- *
- * Note that deletion doesn't otherwise modify the table, so an iteration over
- * the table deleting entries is safe.
- */
-void
-_mesa_hash_table_remove(struct hash_table *ht,
- struct hash_entry *entry)
-{
- if (!entry)
- return;
-
- entry->key = ht->deleted_key;
- ht->entries--;
- ht->deleted_entries++;
-}
-
-/**
- * This function is an iterator over the hash table.
- *
- * Pass in NULL for the first entry, as in the start of a for loop. Note that
- * an iteration over the table is O(table_size) not O(entries).
- */
-struct hash_entry *
-_mesa_hash_table_next_entry(struct hash_table *ht,
- struct hash_entry *entry)
-{
- if (entry == NULL)
- entry = ht->table;
- else
- entry = entry + 1;
-
- for (; entry != ht->table + ht->size; entry++) {
- if (entry_is_present(ht, entry)) {
- return entry;
- }
- }
-
- return NULL;
-}
-
-/**
- * Returns a random entry from the hash table.
- *
- * This may be useful in implementing random replacement (as opposed
- * to just removing everything) in caches based on this hash table
- * implementation. @predicate may be used to filter entries, or may
- * be set to NULL for no filtering.
- */
-struct hash_entry *
-_mesa_hash_table_random_entry(struct hash_table *ht,
- bool (*predicate)(struct hash_entry *entry))
-{
- struct hash_entry *entry;
- uint32_t i = rand() % ht->size;
-
- if (ht->entries == 0)
- return NULL;
-
- for (entry = ht->table + i; entry != ht->table + ht->size; entry++) {
- if (entry_is_present(ht, entry) &&
- (!predicate || predicate(entry))) {
- return entry;
- }
- }
-
- for (entry = ht->table; entry != ht->table + i; entry++) {
- if (entry_is_present(ht, entry) &&
- (!predicate || predicate(entry))) {
- return entry;
- }
- }
-
- return NULL;
-}
-
-
-/**
- * Quick FNV-1 hash implementation based on:
- * http://www.isthe.com/chongo/tech/comp/fnv/
- *
- * FNV-1 is not be the best hash out there -- Jenkins's lookup3 is supposed to
- * be quite good, and it probably beats FNV. But FNV has the advantage that
- * it involves almost no code. For an improvement on both, see Paul
- * Hsieh's http://www.azillionmonkeys.com/qed/hash.html
- */
-uint32_t
-_mesa_hash_data(const void *data, size_t size)
-{
- uint32_t hash = 2166136261ul;
- const uint8_t *bytes = data;
-
- while (size-- != 0) {
- hash ^= *bytes;
- hash = hash * 0x01000193;
- bytes++;
- }
-
- return hash;
-}
-
-/** FNV-1 string hash implementation */
-uint32_t
-_mesa_hash_string(const char *key)
-{
- uint32_t hash = 2166136261ul;
-
- while (*key != 0) {
- hash ^= *key;
- hash = hash * 0x01000193;
- key++;
- }
-
- return hash;
-}
-
-/**
- * String compare function for use as the comparison callback in
- * _mesa_hash_table_create().
- */
-bool
-_mesa_key_string_equal(const void *a, const void *b)
-{
- return strcmp(a, b) == 0;
-}
-
-bool
-_mesa_key_pointer_equal(const void *a, const void *b)
-{
- return a == b;
-}
diff --git a/src/mesa/main/hash_table.h b/src/mesa/main/hash_table.h
deleted file mode 100644
index f51131a..0000000
--- a/src/mesa/main/hash_table.h
+++ /dev/null
@@ -1,106 +0,0 @@
-/*
- * Copyright © 2009,2012 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.
- *
- * Authors:
- * Eric Anholt <eric at anholt.net>
- *
- */
-
-#ifndef _HASH_TABLE_H
-#define _HASH_TABLE_H
-
-#include <inttypes.h>
-#include <stdbool.h>
-
-#include "compiler.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-struct hash_entry {
- uint32_t hash;
- const void *key;
- void *data;
-};
-
-struct hash_table {
- struct hash_entry *table;
- bool (*key_equals_function)(const void *a, const void *b);
- const void *deleted_key;
- uint32_t size;
- uint32_t rehash;
- uint32_t max_entries;
- uint32_t size_index;
- uint32_t entries;
- uint32_t deleted_entries;
-};
-
-struct hash_table *
-_mesa_hash_table_create(void *mem_ctx,
- bool (*key_equals_function)(const void *a,
- const void *b));
-void _mesa_hash_table_destroy(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);
-
-struct hash_entry *
-_mesa_hash_table_insert(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);
-void _mesa_hash_table_remove(struct hash_table *ht,
- struct hash_entry *entry);
-
-struct hash_entry *_mesa_hash_table_next_entry(struct hash_table *ht,
- struct hash_entry *entry);
-struct hash_entry *
-_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);
-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));
-}
-
-/**
- * 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; \
- entry = _mesa_hash_table_next_entry(ht, entry))
-
-#ifdef __cplusplus
-} /* extern C */
-#endif
-
-#endif /* _HASH_TABLE_H */
diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c
index 85b9753..b4a5e70 100644
--- a/src/mesa/main/shaderapi.c
+++ b/src/mesa/main/shaderapi.c
@@ -42,7 +42,6 @@
#include "main/dispatch.h"
#include "main/enums.h"
#include "main/hash.h"
-#include "main/hash_table.h"
#include "main/mtypes.h"
#include "main/pipelineobj.h"
#include "main/shaderapi.h"
@@ -53,6 +52,7 @@
#include "program/prog_print.h"
#include "program/prog_parameter.h"
#include "util/ralloc.h"
+#include "util/hash_table.h"
#include <stdbool.h>
#include "../glsl/glsl_parser_extras.h"
#include "../glsl/ir.h"
diff --git a/src/mesa/main/shared.c b/src/mesa/main/shared.c
index 5ae7014..0189dd2 100644
--- a/src/mesa/main/shared.c
+++ b/src/mesa/main/shared.c
@@ -30,7 +30,6 @@
#include "imports.h"
#include "mtypes.h"
#include "hash.h"
-#include "hash_table.h"
#include "atifragshader.h"
#include "bufferobj.h"
#include "shared.h"
@@ -42,6 +41,7 @@
#include "shaderobj.h"
#include "syncobj.h"
+#include "util/hash_table.h"
/**
* Allocate and initialize a shared context state structure.
diff --git a/src/mesa/main/syncobj.c b/src/mesa/main/syncobj.c
index a88d7e4..225399e 100644
--- a/src/mesa/main/syncobj.c
+++ b/src/mesa/main/syncobj.c
@@ -64,7 +64,7 @@
#include "dispatch.h"
#include "mtypes.h"
#include "set.h"
-#include "hash_table.h"
+#include "util/hash_table.h"
#include "syncobj.h"
diff --git a/src/mesa/main/tests/Makefile.am b/src/mesa/main/tests/Makefile.am
index 3c7c1b5..251474d 100644
--- a/src/mesa/main/tests/Makefile.am
+++ b/src/mesa/main/tests/Makefile.am
@@ -1,5 +1,3 @@
-SUBDIRS = hash_table
-
AM_CFLAGS = \
$(X11_CFLAGS) \
$(PTHREAD_CFLAGS)
diff --git a/src/mesa/main/tests/hash_table/.gitignore b/src/mesa/main/tests/hash_table/.gitignore
deleted file mode 100644
index 1b9aaf4..0000000
--- a/src/mesa/main/tests/hash_table/.gitignore
+++ /dev/null
@@ -1,10 +0,0 @@
-collision
-delete_and_lookup
-delete_management
-destroy_callback
-insert_and_lookup
-insert_many
-null_destroy
-random_entry
-remove_null
-replacement
diff --git a/src/mesa/main/tests/hash_table/Makefile.am b/src/mesa/main/tests/hash_table/Makefile.am
deleted file mode 100644
index 0330ebb..0000000
--- a/src/mesa/main/tests/hash_table/Makefile.am
+++ /dev/null
@@ -1,44 +0,0 @@
-# Copyright © 2009 Intel Corporation
-#
-# Permission is hereby granted, free of charge, to any person obtaining a
-# copy of this software and associated documentation files (the "Software"),
-# to deal in the Software without restriction, including without limitation
-# on the rights to use, copy, modify, merge, publish, distribute, sub
-# license, and/or sell copies of the Software, and to permit persons to whom
-# the Software is furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice (including the next
-# paragraph) shall be included in all copies or substantial portions of the
-# Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
-# ADAM JACKSON BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-AM_CPPFLAGS = \
- -I$(top_srcdir)/include \
- -I$(top_srcdir)/src/mesa/main \
- $(DEFINES) $(INCLUDE_DIRS)
-
-LDADD = \
- $(top_builddir)/src/mesa/libmesa.la \
- $(PTHREAD_LIBS) \
- $(DLOPEN_LIBS)
-
-TESTS = \
- collision \
- delete_and_lookup \
- delete_management \
- destroy_callback \
- insert_and_lookup \
- insert_many \
- null_destroy \
- random_entry \
- remove_null \
- replacement \
- $()
-
-EXTRA_PROGRAMS = $(TESTS)
diff --git a/src/mesa/main/tests/hash_table/collision.c b/src/mesa/main/tests/hash_table/collision.c
deleted file mode 100644
index 9174c39..0000000
--- a/src/mesa/main/tests/hash_table/collision.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright © 2012 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.
- *
- * Authors:
- * Eric Anholt <eric at anholt.net>
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-#include "hash_table.h"
-
-int
-main(int argc, char **argv)
-{
- struct hash_table *ht;
- const char *str1 = "test1";
- const char *str2 = "test2";
- struct hash_entry *entry1, *entry2;
- uint32_t bad_hash = 5;
- int i;
-
- ht = _mesa_hash_table_create(NULL, _mesa_key_string_equal);
-
- _mesa_hash_table_insert(ht, bad_hash, str1, NULL);
- _mesa_hash_table_insert(ht, bad_hash, str2, NULL);
-
- entry1 = _mesa_hash_table_search(ht, bad_hash, str1);
- assert(entry1->key == str1);
-
- entry2 = _mesa_hash_table_search(ht, bad_hash, str2);
- assert(entry2->key == str2);
-
- /* Check that we can still find #1 after inserting #2 */
- entry1 = _mesa_hash_table_search(ht, bad_hash, str1);
- assert(entry1->key == str1);
-
- /* Remove the collided entry and look again. */
- _mesa_hash_table_remove(ht, entry1);
- entry2 = _mesa_hash_table_search(ht, bad_hash, str2);
- assert(entry2->key == str2);
-
- /* Put str1 back, then spam junk into the table to force a
- * resize and make sure we can still find them both.
- */
- _mesa_hash_table_insert(ht, bad_hash, str1, NULL);
- for (i = 0; i < 100; i++) {
- char *key = malloc(10);
- sprintf(key, "spam%d", i);
- _mesa_hash_table_insert(ht, _mesa_hash_string(key), key, NULL);
- }
- entry1 = _mesa_hash_table_search(ht, bad_hash, str1);
- assert(entry1->key == str1);
- entry2 = _mesa_hash_table_search(ht, bad_hash, str2);
- assert(entry2->key == str2);
-
- _mesa_hash_table_destroy(ht, NULL);
-
- return 0;
-}
diff --git a/src/mesa/main/tests/hash_table/delete_and_lookup.c b/src/mesa/main/tests/hash_table/delete_and_lookup.c
deleted file mode 100644
index fc886ff..0000000
--- a/src/mesa/main/tests/hash_table/delete_and_lookup.c
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * Copyright © 2009 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.
- *
- * Authors:
- * Eric Anholt <eric at anholt.net>
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-#include "hash_table.h"
-
-/* Return collisions, so we can test the deletion behavior for chained
- * objects.
- */
-static uint32_t
-badhash(const void *key)
-{
- return 1;
-}
-
-int
-main(int argc, char **argv)
-{
- struct hash_table *ht;
- const char *str1 = "test1";
- const char *str2 = "test2";
- uint32_t hash_str1 = badhash(str1);
- uint32_t hash_str2 = badhash(str2);
- struct hash_entry *entry;
-
- ht = _mesa_hash_table_create(NULL, _mesa_key_string_equal);
-
- _mesa_hash_table_insert(ht, hash_str1, str1, NULL);
- _mesa_hash_table_insert(ht, hash_str2, str2, NULL);
-
- entry = _mesa_hash_table_search(ht, hash_str2, str2);
- assert(strcmp(entry->key, str2) == 0);
-
- entry = _mesa_hash_table_search(ht, hash_str1, str1);
- assert(strcmp(entry->key, str1) == 0);
-
- _mesa_hash_table_remove(ht, entry);
-
- entry = _mesa_hash_table_search(ht, hash_str1, str1);
- assert(entry == NULL);
-
- entry = _mesa_hash_table_search(ht, hash_str2, str2);
- assert(strcmp(entry->key, str2) == 0);
-
- _mesa_hash_table_destroy(ht, NULL);
-
- return 0;
-}
diff --git a/src/mesa/main/tests/hash_table/delete_management.c b/src/mesa/main/tests/hash_table/delete_management.c
deleted file mode 100644
index b8d7640..0000000
--- a/src/mesa/main/tests/hash_table/delete_management.c
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * Copyright © 2009 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.
- *
- * Authors:
- * Eric Anholt <eric at anholt.net>
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-#include "hash_table.h"
-
-static uint32_t
-key_value(const void *key)
-{
- return *(const uint32_t *)key;
-}
-
-static bool
-uint32_t_key_equals(const void *a, const void *b)
-{
- return key_value(a) == key_value(b);
-}
-
-int
-main(int argc, char **argv)
-{
- struct hash_table *ht;
- struct hash_entry *entry;
- int size = 10000;
- uint32_t keys[size];
- uint32_t i;
-
- ht = _mesa_hash_table_create(NULL, uint32_t_key_equals);
-
- for (i = 0; i < size; i++) {
- keys[i] = i;
-
- _mesa_hash_table_insert(ht, i, keys + i, NULL);
-
- if (i >= 100) {
- uint32_t delete_value = i - 100;
- entry = _mesa_hash_table_search(ht, delete_value,
- &delete_value);
- _mesa_hash_table_remove(ht, entry);
- }
- }
-
- /* Make sure that all our entries were present at the end. */
- for (i = size - 100; i < size; i++) {
- entry = _mesa_hash_table_search(ht, i, keys + i);
- assert(entry);
- assert(key_value(entry->key) == i);
- }
-
- /* Make sure that no extra entries got in */
- for (entry = _mesa_hash_table_next_entry(ht, NULL);
- entry != NULL;
- entry = _mesa_hash_table_next_entry(ht, entry)) {
- assert(key_value(entry->key) >= size - 100 &&
- key_value(entry->key) < size);
- }
- assert(ht->entries == 100);
-
- _mesa_hash_table_destroy(ht, NULL);
-
- return 0;
-}
diff --git a/src/mesa/main/tests/hash_table/destroy_callback.c b/src/mesa/main/tests/hash_table/destroy_callback.c
deleted file mode 100644
index dce2b33..0000000
--- a/src/mesa/main/tests/hash_table/destroy_callback.c
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * Copyright © 2009 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.
- *
- * Authors:
- * Eric Anholt <eric at anholt.net>
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-#include "hash_table.h"
-
-static const char *str1 = "test1";
-static const char *str2 = "test2";
-static int delete_str1 = 0;
-static int delete_str2 = 0;
-
-static void
-delete_callback(struct hash_entry *entry)
-{
- if (strcmp(entry->key, str1) == 0)
- delete_str1 = 1;
- else if (strcmp(entry->key, str2) == 0)
- delete_str2 = 1;
- else
- abort();
-}
-
-int
-main(int argc, char **argv)
-{
- struct hash_table *ht;
- uint32_t hash_str1 = _mesa_hash_string(str1);
- uint32_t hash_str2 = _mesa_hash_string(str2);
-
- ht = _mesa_hash_table_create(NULL, _mesa_key_string_equal);
-
- _mesa_hash_table_insert(ht, hash_str1, str1, NULL);
- _mesa_hash_table_insert(ht, hash_str2, str2, NULL);
-
- _mesa_hash_table_destroy(ht, delete_callback);
-
- assert(delete_str1 && delete_str2);
-
- return 0;
-}
diff --git a/src/mesa/main/tests/hash_table/insert_and_lookup.c b/src/mesa/main/tests/hash_table/insert_and_lookup.c
deleted file mode 100644
index 402f3fd..0000000
--- a/src/mesa/main/tests/hash_table/insert_and_lookup.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright © 2009 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.
- *
- * Authors:
- * Eric Anholt <eric at anholt.net>
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-#include "hash_table.h"
-
-int
-main(int argc, char **argv)
-{
- struct hash_table *ht;
- const char *str1 = "test1";
- const char *str2 = "test2";
- uint32_t hash_str1 = _mesa_hash_string(str1);
- uint32_t hash_str2 = _mesa_hash_string(str2);
- struct hash_entry *entry;
-
- ht = _mesa_hash_table_create(NULL, _mesa_key_string_equal);
-
- _mesa_hash_table_insert(ht, hash_str1, str1, NULL);
- _mesa_hash_table_insert(ht, hash_str2, str2, NULL);
-
- entry = _mesa_hash_table_search(ht, hash_str1, str1);
- assert(strcmp(entry->key, str1) == 0);
-
- entry = _mesa_hash_table_search(ht, hash_str2, str2);
- assert(strcmp(entry->key, str2) == 0);
-
- _mesa_hash_table_destroy(ht, NULL);
-
- return 0;
-}
diff --git a/src/mesa/main/tests/hash_table/insert_many.c b/src/mesa/main/tests/hash_table/insert_many.c
deleted file mode 100644
index b2122dc..0000000
--- a/src/mesa/main/tests/hash_table/insert_many.c
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Copyright © 2009 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.
- *
- * Authors:
- * Eric Anholt <eric at anholt.net>
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-#include "hash_table.h"
-
-static uint32_t
-key_value(const void *key)
-{
- return *(const uint32_t *)key;
-}
-
-static bool
-uint32_t_key_equals(const void *a, const void *b)
-{
- return key_value(a) == key_value(b);
-}
-
-int
-main(int argc, char **argv)
-{
- struct hash_table *ht;
- struct hash_entry *entry;
- int size = 10000;
- uint32_t keys[size];
- uint32_t i;
-
- ht = _mesa_hash_table_create(NULL, uint32_t_key_equals);
-
- for (i = 0; i < size; i++) {
- keys[i] = i;
-
- _mesa_hash_table_insert(ht, i, keys + i, NULL);
- }
-
- for (i = 0; i < size; i++) {
- entry = _mesa_hash_table_search(ht, i, keys + i);
- assert(entry);
- assert(key_value(entry->key) == i);
- }
- assert(ht->entries == size);
-
- _mesa_hash_table_destroy(ht, NULL);
-
- return 0;
-}
diff --git a/src/mesa/main/tests/hash_table/null_destroy.c b/src/mesa/main/tests/hash_table/null_destroy.c
deleted file mode 100644
index 3833464..0000000
--- a/src/mesa/main/tests/hash_table/null_destroy.c
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Copyright © 2009 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.
- *
- * Authors:
- * Eric Anholt <eric at anholt.net>
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include "hash_table.h"
-
-int
-main(int argc, char **argv)
-{
- _mesa_hash_table_destroy(NULL, NULL);
-
- return 0;
-}
diff --git a/src/mesa/main/tests/hash_table/random_entry.c b/src/mesa/main/tests/hash_table/random_entry.c
deleted file mode 100644
index 22cafa7..0000000
--- a/src/mesa/main/tests/hash_table/random_entry.c
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * Copyright © 2009 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.
- *
- * Authors:
- * Eric Anholt <eric at anholt.net>
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-#include "hash_table.h"
-
-static uint32_t
-key_value(const void *key)
-{
- return *(const uint32_t *)key;
-}
-
-static bool
-uint32_t_key_equals(const void *a, const void *b)
-{
- return key_value(a) == key_value(b);
-}
-
-static bool
-uint32_t_key_is_even(struct hash_entry *entry)
-{
- return (key_value(entry->key) & 1) == 0;
-}
-
-int
-main(int argc, char **argv)
-{
- struct hash_table *ht;
- struct hash_entry *entry;
- int size = 10000;
- uint32_t keys[size];
- uint32_t i, random_value;
-
- ht = _mesa_hash_table_create(NULL, uint32_t_key_equals);
-
- for (i = 0; i < size; i++) {
- keys[i] = i;
-
- _mesa_hash_table_insert(ht, i, keys + i, NULL);
- }
-
- /* Test the no-predicate case. */
- entry = _mesa_hash_table_random_entry(ht, NULL);
- assert(entry);
-
- /* Check that we're getting different entries and that the predicate
- * works.
- */
- for (i = 0; i < 100; i++) {
- entry = _mesa_hash_table_random_entry(ht, uint32_t_key_is_even);
- assert(entry);
- assert((key_value(entry->key) & 1) == 0);
- if (i == 0 || key_value(entry->key) != random_value)
- break;
- random_value = key_value(entry->key);
- }
- assert(i != 100);
-
- _mesa_hash_table_destroy(ht, NULL);
-
- return 0;
-}
diff --git a/src/mesa/main/tests/hash_table/remove_null.c b/src/mesa/main/tests/hash_table/remove_null.c
deleted file mode 100644
index 90fb784..0000000
--- a/src/mesa/main/tests/hash_table/remove_null.c
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright © 2011 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.
- *
- * Authors:
- * Eric Anholt <eric at anholt.net>
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-#include "hash_table.h"
-
-int
-main(int argc, char **argv)
-{
- struct hash_table *ht;
-
- ht = _mesa_hash_table_create(NULL, _mesa_key_string_equal);
-
- _mesa_hash_table_remove(ht, NULL);
-
- _mesa_hash_table_destroy(ht, NULL);
-
- return 0;
-}
diff --git a/src/mesa/main/tests/hash_table/replacement.c b/src/mesa/main/tests/hash_table/replacement.c
deleted file mode 100644
index 387cfc0..0000000
--- a/src/mesa/main/tests/hash_table/replacement.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright © 2011 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.
- *
- * Authors:
- * Eric Anholt <eric at anholt.net>
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-#include "hash_table.h"
-
-int
-main(int argc, char **argv)
-{
- struct hash_table *ht;
- char *str1 = strdup("test1");
- char *str2 = strdup("test1");
- uint32_t hash_str1 = _mesa_hash_string(str1);
- uint32_t hash_str2 = _mesa_hash_string(str2);
- struct hash_entry *entry;
-
- assert(str1 != str2);
-
- ht = _mesa_hash_table_create(NULL, _mesa_key_string_equal);
-
- _mesa_hash_table_insert(ht, hash_str1, str1, str1);
- _mesa_hash_table_insert(ht, hash_str2, str2, str2);
-
- entry = _mesa_hash_table_search(ht, hash_str1, str1);
- assert(entry);
- assert(entry->data == str2);
-
- _mesa_hash_table_remove(ht, entry);
-
- entry = _mesa_hash_table_search(ht, hash_str1, str1);
- assert(!entry);
-
- _mesa_hash_table_destroy(ht, NULL);
- free(str1);
- free(str2);
-
- return 0;
-}
diff --git a/src/mesa/main/vdpau.c b/src/mesa/main/vdpau.c
index 975b812..e1c3e00 100644
--- a/src/mesa/main/vdpau.c
+++ b/src/mesa/main/vdpau.c
@@ -32,9 +32,9 @@
*/
#include <stdbool.h>
+#include "util/hash_table.h"
#include "context.h"
#include "glformats.h"
-#include "hash_table.h"
#include "set.h"
#include "texobj.h"
#include "teximage.h"
diff --git a/src/util/Makefile.am b/src/util/Makefile.am
index 1ed70c2..0f9dcab 100644
--- a/src/util/Makefile.am
+++ b/src/util/Makefile.am
@@ -28,6 +28,7 @@ noinst_LTLIBRARIES = libmesautil.la
libmesautil_la_CPPFLAGS = \
$(DEFINES) \
-I$(top_srcdir)/include \
+ -I$(top_srcdir)/src/mapi \
-I$(top_srcdir)/src/mesa \
$(VISIBILITY_CFLAGS)
diff --git a/src/util/Makefile.sources b/src/util/Makefile.sources
index c4c79ca..5daa731 100644
--- a/src/util/Makefile.sources
+++ b/src/util/Makefile.sources
@@ -1,2 +1,3 @@
-MESA_UTIL_FILES := \
+MESA_UTIL_FILES := \
+ hash_table.c \
ralloc.c
diff --git a/src/util/SConscript b/src/util/SConscript
index 9653ef6..a36340d 100644
--- a/src/util/SConscript
+++ b/src/util/SConscript
@@ -8,6 +8,7 @@ env = env.Clone()
env.Prepend(CPPPATH = [
'#include',
+ '#src/mapi',
'#src/mesa',
'#src/util',
])
diff --git a/src/util/hash_table.c b/src/util/hash_table.c
new file mode 100644
index 0000000..f98a1a6
--- /dev/null
+++ b/src/util/hash_table.c
@@ -0,0 +1,440 @@
+/*
+ * Copyright © 2009,2012 Intel Corporation
+ * Copyright © 1988-2004 Keith Packard and Bart Massey.
+ *
+ * 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.
+ *
+ * Except as contained in this notice, the names of the authors
+ * or their institutions shall not be used in advertising or
+ * otherwise to promote the sale, use or other dealings in this
+ * Software without prior written authorization from the
+ * authors.
+ *
+ * Authors:
+ * Eric Anholt <eric at anholt.net>
+ * Keith Packard <keithp at keithp.com>
+ */
+
+/**
+ * Implements an open-addressing, linear-reprobing hash table.
+ *
+ * For more information, see:
+ *
+ * http://cgit.freedesktop.org/~anholt/hash_table/tree/README
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "hash_table.h"
+#include "main/macros.h"
+#include "ralloc.h"
+
+static const uint32_t deleted_key_value;
+
+/**
+ * From Knuth -- a good choice for hash/rehash values is p, p-2 where
+ * p and p-2 are both prime. These tables are sized to have an extra 10%
+ * free to avoid exponential performance degradation as the hash table fills
+ */
+static const struct {
+ uint32_t max_entries, size, rehash;
+} hash_sizes[] = {
+ { 2, 5, 3 },
+ { 4, 7, 5 },
+ { 8, 13, 11 },
+ { 16, 19, 17 },
+ { 32, 43, 41 },
+ { 64, 73, 71 },
+ { 128, 151, 149 },
+ { 256, 283, 281 },
+ { 512, 571, 569 },
+ { 1024, 1153, 1151 },
+ { 2048, 2269, 2267 },
+ { 4096, 4519, 4517 },
+ { 8192, 9013, 9011 },
+ { 16384, 18043, 18041 },
+ { 32768, 36109, 36107 },
+ { 65536, 72091, 72089 },
+ { 131072, 144409, 144407 },
+ { 262144, 288361, 288359 },
+ { 524288, 576883, 576881 },
+ { 1048576, 1153459, 1153457 },
+ { 2097152, 2307163, 2307161 },
+ { 4194304, 4613893, 4613891 },
+ { 8388608, 9227641, 9227639 },
+ { 16777216, 18455029, 18455027 },
+ { 33554432, 36911011, 36911009 },
+ { 67108864, 73819861, 73819859 },
+ { 134217728, 147639589, 147639587 },
+ { 268435456, 295279081, 295279079 },
+ { 536870912, 590559793, 590559791 },
+ { 1073741824, 1181116273, 1181116271},
+ { 2147483648ul, 2362232233ul, 2362232231ul}
+};
+
+static int
+entry_is_free(const struct hash_entry *entry)
+{
+ return entry->key == NULL;
+}
+
+static int
+entry_is_deleted(const struct hash_table *ht, struct hash_entry *entry)
+{
+ return entry->key == ht->deleted_key;
+}
+
+static int
+entry_is_present(const struct hash_table *ht, struct hash_entry *entry)
+{
+ return entry->key != NULL && entry->key != ht->deleted_key;
+}
+
+struct hash_table *
+_mesa_hash_table_create(void *mem_ctx,
+ bool (*key_equals_function)(const void *a,
+ const void *b))
+{
+ struct hash_table *ht;
+
+ ht = ralloc(mem_ctx, struct hash_table);
+ if (ht == NULL)
+ return NULL;
+
+ ht->size_index = 0;
+ ht->size = hash_sizes[ht->size_index].size;
+ ht->rehash = hash_sizes[ht->size_index].rehash;
+ ht->max_entries = hash_sizes[ht->size_index].max_entries;
+ ht->key_equals_function = key_equals_function;
+ ht->table = rzalloc_array(ht, struct hash_entry, ht->size);
+ ht->entries = 0;
+ ht->deleted_entries = 0;
+ ht->deleted_key = &deleted_key_value;
+
+ if (ht->table == NULL) {
+ ralloc_free(ht);
+ return NULL;
+ }
+
+ return ht;
+}
+
+/**
+ * Frees the given hash table.
+ *
+ * If delete_function is passed, it gets called on each entry present before
+ * freeing.
+ */
+void
+_mesa_hash_table_destroy(struct hash_table *ht,
+ void (*delete_function)(struct hash_entry *entry))
+{
+ if (!ht)
+ return;
+
+ if (delete_function) {
+ struct hash_entry *entry;
+
+ hash_table_foreach(ht, entry) {
+ delete_function(entry);
+ }
+ }
+ ralloc_free(ht);
+}
+
+/** Sets the value of the key pointer used for deleted entries in the table.
+ *
+ * The assumption is that usually keys are actual pointers, so we use a
+ * default value of a pointer to an arbitrary piece of storage in the library.
+ * But in some cases a consumer wants to store some other sort of value in the
+ * table, like a uint32_t, in which case that pointer may conflict with one of
+ * their valid keys. This lets that user select a safe value.
+ *
+ * This must be called before any keys are actually deleted from the table.
+ */
+void
+_mesa_hash_table_set_deleted_key(struct hash_table *ht, const void *deleted_key)
+{
+ ht->deleted_key = deleted_key;
+}
+
+/**
+ * Finds a hash table entry with the given key and hash of that key.
+ *
+ * Returns NULL if no entry is found. Note that the data pointer may be
+ * modified by the user.
+ */
+struct hash_entry *
+_mesa_hash_table_search(struct hash_table *ht, uint32_t hash,
+ const void *key)
+{
+ uint32_t start_hash_address = hash % ht->size;
+ uint32_t hash_address = start_hash_address;
+
+ do {
+ uint32_t double_hash;
+
+ struct hash_entry *entry = ht->table + hash_address;
+
+ if (entry_is_free(entry)) {
+ return NULL;
+ } else if (entry_is_present(ht, entry) && entry->hash == hash) {
+ if (ht->key_equals_function(key, entry->key)) {
+ return entry;
+ }
+ }
+
+ double_hash = 1 + hash % ht->rehash;
+
+ hash_address = (hash_address + double_hash) % ht->size;
+ } while (hash_address != start_hash_address);
+
+ return NULL;
+}
+
+static void
+_mesa_hash_table_rehash(struct hash_table *ht, int new_size_index)
+{
+ struct hash_table old_ht;
+ struct hash_entry *table, *entry;
+
+ if (new_size_index >= ARRAY_SIZE(hash_sizes))
+ return;
+
+ table = rzalloc_array(ht, struct hash_entry,
+ hash_sizes[new_size_index].size);
+ if (table == NULL)
+ return;
+
+ old_ht = *ht;
+
+ ht->table = table;
+ ht->size_index = new_size_index;
+ ht->size = hash_sizes[ht->size_index].size;
+ ht->rehash = hash_sizes[ht->size_index].rehash;
+ ht->max_entries = hash_sizes[ht->size_index].max_entries;
+ ht->entries = 0;
+ ht->deleted_entries = 0;
+
+ hash_table_foreach(&old_ht, entry) {
+ _mesa_hash_table_insert(ht, entry->hash,
+ entry->key, entry->data);
+ }
+
+ ralloc_free(old_ht.table);
+}
+
+/**
+ * Inserts the key with the given hash into the table.
+ *
+ * Note that insertion may rearrange the table on a resize or rehash,
+ * so previously found hash_entries are no longer valid after this function.
+ */
+struct hash_entry *
+_mesa_hash_table_insert(struct hash_table *ht, uint32_t hash,
+ const void *key, void *data)
+{
+ uint32_t start_hash_address, hash_address;
+
+ if (ht->entries >= ht->max_entries) {
+ _mesa_hash_table_rehash(ht, ht->size_index + 1);
+ } else if (ht->deleted_entries + ht->entries >= ht->max_entries) {
+ _mesa_hash_table_rehash(ht, ht->size_index);
+ }
+
+ start_hash_address = hash % ht->size;
+ hash_address = start_hash_address;
+ do {
+ struct hash_entry *entry = ht->table + hash_address;
+ uint32_t double_hash;
+
+ if (!entry_is_present(ht, entry)) {
+ if (entry_is_deleted(ht, entry))
+ ht->deleted_entries--;
+ entry->hash = hash;
+ entry->key = key;
+ entry->data = data;
+ ht->entries++;
+ return entry;
+ }
+
+ /* Implement replacement when another insert happens
+ * with a matching key. This is a relatively common
+ * feature of hash tables, with the alternative
+ * generally being "insert the new value as well, and
+ * return it first when the key is searched for".
+ *
+ * Note that the hash table doesn't have a delete
+ * callback. If freeing of old data pointers is
+ * required to avoid memory leaks, perform a search
+ * before inserting.
+ */
+ if (entry->hash == hash &&
+ ht->key_equals_function(key, entry->key)) {
+ entry->key = key;
+ entry->data = data;
+ return entry;
+ }
+
+
+ double_hash = 1 + hash % ht->rehash;
+
+ hash_address = (hash_address + double_hash) % ht->size;
+ } while (hash_address != start_hash_address);
+
+ /* We could hit here if a required resize failed. An unchecked-malloc
+ * application could ignore this result.
+ */
+ return NULL;
+}
+
+/**
+ * This function deletes the given hash table entry.
+ *
+ * Note that deletion doesn't otherwise modify the table, so an iteration over
+ * the table deleting entries is safe.
+ */
+void
+_mesa_hash_table_remove(struct hash_table *ht,
+ struct hash_entry *entry)
+{
+ if (!entry)
+ return;
+
+ entry->key = ht->deleted_key;
+ ht->entries--;
+ ht->deleted_entries++;
+}
+
+/**
+ * This function is an iterator over the hash table.
+ *
+ * Pass in NULL for the first entry, as in the start of a for loop. Note that
+ * an iteration over the table is O(table_size) not O(entries).
+ */
+struct hash_entry *
+_mesa_hash_table_next_entry(struct hash_table *ht,
+ struct hash_entry *entry)
+{
+ if (entry == NULL)
+ entry = ht->table;
+ else
+ entry = entry + 1;
+
+ for (; entry != ht->table + ht->size; entry++) {
+ if (entry_is_present(ht, entry)) {
+ return entry;
+ }
+ }
+
+ return NULL;
+}
+
+/**
+ * Returns a random entry from the hash table.
+ *
+ * This may be useful in implementing random replacement (as opposed
+ * to just removing everything) in caches based on this hash table
+ * implementation. @predicate may be used to filter entries, or may
+ * be set to NULL for no filtering.
+ */
+struct hash_entry *
+_mesa_hash_table_random_entry(struct hash_table *ht,
+ bool (*predicate)(struct hash_entry *entry))
+{
+ struct hash_entry *entry;
+ uint32_t i = rand() % ht->size;
+
+ if (ht->entries == 0)
+ return NULL;
+
+ for (entry = ht->table + i; entry != ht->table + ht->size; entry++) {
+ if (entry_is_present(ht, entry) &&
+ (!predicate || predicate(entry))) {
+ return entry;
+ }
+ }
+
+ for (entry = ht->table; entry != ht->table + i; entry++) {
+ if (entry_is_present(ht, entry) &&
+ (!predicate || predicate(entry))) {
+ return entry;
+ }
+ }
+
+ return NULL;
+}
+
+
+/**
+ * Quick FNV-1 hash implementation based on:
+ * http://www.isthe.com/chongo/tech/comp/fnv/
+ *
+ * FNV-1 is not be the best hash out there -- Jenkins's lookup3 is supposed to
+ * be quite good, and it probably beats FNV. But FNV has the advantage that
+ * it involves almost no code. For an improvement on both, see Paul
+ * Hsieh's http://www.azillionmonkeys.com/qed/hash.html
+ */
+uint32_t
+_mesa_hash_data(const void *data, size_t size)
+{
+ uint32_t hash = 2166136261ul;
+ const uint8_t *bytes = data;
+
+ while (size-- != 0) {
+ hash ^= *bytes;
+ hash = hash * 0x01000193;
+ bytes++;
+ }
+
+ return hash;
+}
+
+/** FNV-1 string hash implementation */
+uint32_t
+_mesa_hash_string(const char *key)
+{
+ uint32_t hash = 2166136261ul;
+
+ while (*key != 0) {
+ hash ^= *key;
+ hash = hash * 0x01000193;
+ key++;
+ }
+
+ return hash;
+}
+
+/**
+ * String compare function for use as the comparison callback in
+ * _mesa_hash_table_create().
+ */
+bool
+_mesa_key_string_equal(const void *a, const void *b)
+{
+ return strcmp(a, b) == 0;
+}
+
+bool
+_mesa_key_pointer_equal(const void *a, const void *b)
+{
+ return a == b;
+}
diff --git a/src/util/hash_table.h b/src/util/hash_table.h
new file mode 100644
index 0000000..5fa5899
--- /dev/null
+++ b/src/util/hash_table.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright © 2009,2012 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.
+ *
+ * Authors:
+ * Eric Anholt <eric at anholt.net>
+ *
+ */
+
+#ifndef _HASH_TABLE_H
+#define _HASH_TABLE_H
+
+#include <inttypes.h>
+#include <stdbool.h>
+
+#include "main/compiler.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct hash_entry {
+ uint32_t hash;
+ const void *key;
+ void *data;
+};
+
+struct hash_table {
+ struct hash_entry *table;
+ bool (*key_equals_function)(const void *a, const void *b);
+ const void *deleted_key;
+ uint32_t size;
+ uint32_t rehash;
+ uint32_t max_entries;
+ uint32_t size_index;
+ uint32_t entries;
+ uint32_t deleted_entries;
+};
+
+struct hash_table *
+_mesa_hash_table_create(void *mem_ctx,
+ bool (*key_equals_function)(const void *a,
+ const void *b));
+void _mesa_hash_table_destroy(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);
+
+struct hash_entry *
+_mesa_hash_table_insert(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);
+void _mesa_hash_table_remove(struct hash_table *ht,
+ struct hash_entry *entry);
+
+struct hash_entry *_mesa_hash_table_next_entry(struct hash_table *ht,
+ struct hash_entry *entry);
+struct hash_entry *
+_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);
+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));
+}
+
+/**
+ * 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; \
+ entry = _mesa_hash_table_next_entry(ht, entry))
+
+#ifdef __cplusplus
+} /* extern C */
+#endif
+
+#endif /* _HASH_TABLE_H */
diff --git a/src/util/tests/Makefile.am b/src/util/tests/Makefile.am
index a2b5498..8ec8c3a 100644
--- a/src/util/tests/Makefile.am
+++ b/src/util/tests/Makefile.am
@@ -19,6 +19,8 @@
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
+SUBDIRS = hash_table
+
AM_CFLAGS = \
$(PTHREAD_CFLAGS)
AM_CPPFLAGS = \
diff --git a/src/util/tests/hash_table/.gitignore b/src/util/tests/hash_table/.gitignore
new file mode 100644
index 0000000..1b9aaf4
--- /dev/null
+++ b/src/util/tests/hash_table/.gitignore
@@ -0,0 +1,10 @@
+collision
+delete_and_lookup
+delete_management
+destroy_callback
+insert_and_lookup
+insert_many
+null_destroy
+random_entry
+remove_null
+replacement
diff --git a/src/util/tests/hash_table/Makefile.am b/src/util/tests/hash_table/Makefile.am
new file mode 100644
index 0000000..55cc0b7
--- /dev/null
+++ b/src/util/tests/hash_table/Makefile.am
@@ -0,0 +1,46 @@
+# Copyright © 2009 Intel Corporation
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# on the rights to use, copy, modify, merge, publish, distribute, sub
+# license, and/or sell copies of the Software, and to permit persons to whom
+# the Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice (including the next
+# paragraph) shall be included in all copies or substantial portions of the
+# Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+# ADAM JACKSON BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+AM_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/src/util \
+ -I$(top_srcdir)/src/mesa \
+ -I$(top_srcdir)/src/mesa/main \
+ $(DEFINES) $(INCLUDE_DIRS)
+
+LDADD = \
+ $(top_builddir)/src/mesa/libmesa.la \
+ $(PTHREAD_LIBS) \
+ $(DLOPEN_LIBS)
+
+TESTS = \
+ collision \
+ delete_and_lookup \
+ delete_management \
+ destroy_callback \
+ insert_and_lookup \
+ insert_many \
+ null_destroy \
+ random_entry \
+ remove_null \
+ replacement \
+ $()
+
+EXTRA_PROGRAMS = $(TESTS)
diff --git a/src/util/tests/hash_table/collision.c b/src/util/tests/hash_table/collision.c
new file mode 100644
index 0000000..9174c39
--- /dev/null
+++ b/src/util/tests/hash_table/collision.c
@@ -0,0 +1,80 @@
+/*
+ * Copyright © 2012 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.
+ *
+ * Authors:
+ * Eric Anholt <eric at anholt.net>
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include "hash_table.h"
+
+int
+main(int argc, char **argv)
+{
+ struct hash_table *ht;
+ const char *str1 = "test1";
+ const char *str2 = "test2";
+ struct hash_entry *entry1, *entry2;
+ uint32_t bad_hash = 5;
+ int i;
+
+ ht = _mesa_hash_table_create(NULL, _mesa_key_string_equal);
+
+ _mesa_hash_table_insert(ht, bad_hash, str1, NULL);
+ _mesa_hash_table_insert(ht, bad_hash, str2, NULL);
+
+ entry1 = _mesa_hash_table_search(ht, bad_hash, str1);
+ assert(entry1->key == str1);
+
+ entry2 = _mesa_hash_table_search(ht, bad_hash, str2);
+ assert(entry2->key == str2);
+
+ /* Check that we can still find #1 after inserting #2 */
+ entry1 = _mesa_hash_table_search(ht, bad_hash, str1);
+ assert(entry1->key == str1);
+
+ /* Remove the collided entry and look again. */
+ _mesa_hash_table_remove(ht, entry1);
+ entry2 = _mesa_hash_table_search(ht, bad_hash, str2);
+ assert(entry2->key == str2);
+
+ /* Put str1 back, then spam junk into the table to force a
+ * resize and make sure we can still find them both.
+ */
+ _mesa_hash_table_insert(ht, bad_hash, str1, NULL);
+ for (i = 0; i < 100; i++) {
+ char *key = malloc(10);
+ sprintf(key, "spam%d", i);
+ _mesa_hash_table_insert(ht, _mesa_hash_string(key), key, NULL);
+ }
+ entry1 = _mesa_hash_table_search(ht, bad_hash, str1);
+ assert(entry1->key == str1);
+ entry2 = _mesa_hash_table_search(ht, bad_hash, str2);
+ assert(entry2->key == str2);
+
+ _mesa_hash_table_destroy(ht, NULL);
+
+ return 0;
+}
diff --git a/src/util/tests/hash_table/delete_and_lookup.c b/src/util/tests/hash_table/delete_and_lookup.c
new file mode 100644
index 0000000..fc886ff
--- /dev/null
+++ b/src/util/tests/hash_table/delete_and_lookup.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright © 2009 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.
+ *
+ * Authors:
+ * Eric Anholt <eric at anholt.net>
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include "hash_table.h"
+
+/* Return collisions, so we can test the deletion behavior for chained
+ * objects.
+ */
+static uint32_t
+badhash(const void *key)
+{
+ return 1;
+}
+
+int
+main(int argc, char **argv)
+{
+ struct hash_table *ht;
+ const char *str1 = "test1";
+ const char *str2 = "test2";
+ uint32_t hash_str1 = badhash(str1);
+ uint32_t hash_str2 = badhash(str2);
+ struct hash_entry *entry;
+
+ ht = _mesa_hash_table_create(NULL, _mesa_key_string_equal);
+
+ _mesa_hash_table_insert(ht, hash_str1, str1, NULL);
+ _mesa_hash_table_insert(ht, hash_str2, str2, NULL);
+
+ entry = _mesa_hash_table_search(ht, hash_str2, str2);
+ assert(strcmp(entry->key, str2) == 0);
+
+ entry = _mesa_hash_table_search(ht, hash_str1, str1);
+ assert(strcmp(entry->key, str1) == 0);
+
+ _mesa_hash_table_remove(ht, entry);
+
+ entry = _mesa_hash_table_search(ht, hash_str1, str1);
+ assert(entry == NULL);
+
+ entry = _mesa_hash_table_search(ht, hash_str2, str2);
+ assert(strcmp(entry->key, str2) == 0);
+
+ _mesa_hash_table_destroy(ht, NULL);
+
+ return 0;
+}
diff --git a/src/util/tests/hash_table/delete_management.c b/src/util/tests/hash_table/delete_management.c
new file mode 100644
index 0000000..b8d7640
--- /dev/null
+++ b/src/util/tests/hash_table/delete_management.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright © 2009 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.
+ *
+ * Authors:
+ * Eric Anholt <eric at anholt.net>
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include "hash_table.h"
+
+static uint32_t
+key_value(const void *key)
+{
+ return *(const uint32_t *)key;
+}
+
+static bool
+uint32_t_key_equals(const void *a, const void *b)
+{
+ return key_value(a) == key_value(b);
+}
+
+int
+main(int argc, char **argv)
+{
+ struct hash_table *ht;
+ struct hash_entry *entry;
+ int size = 10000;
+ uint32_t keys[size];
+ uint32_t i;
+
+ ht = _mesa_hash_table_create(NULL, uint32_t_key_equals);
+
+ for (i = 0; i < size; i++) {
+ keys[i] = i;
+
+ _mesa_hash_table_insert(ht, i, keys + i, NULL);
+
+ if (i >= 100) {
+ uint32_t delete_value = i - 100;
+ entry = _mesa_hash_table_search(ht, delete_value,
+ &delete_value);
+ _mesa_hash_table_remove(ht, entry);
+ }
+ }
+
+ /* Make sure that all our entries were present at the end. */
+ for (i = size - 100; i < size; i++) {
+ entry = _mesa_hash_table_search(ht, i, keys + i);
+ assert(entry);
+ assert(key_value(entry->key) == i);
+ }
+
+ /* Make sure that no extra entries got in */
+ for (entry = _mesa_hash_table_next_entry(ht, NULL);
+ entry != NULL;
+ entry = _mesa_hash_table_next_entry(ht, entry)) {
+ assert(key_value(entry->key) >= size - 100 &&
+ key_value(entry->key) < size);
+ }
+ assert(ht->entries == 100);
+
+ _mesa_hash_table_destroy(ht, NULL);
+
+ return 0;
+}
diff --git a/src/util/tests/hash_table/destroy_callback.c b/src/util/tests/hash_table/destroy_callback.c
new file mode 100644
index 0000000..dce2b33
--- /dev/null
+++ b/src/util/tests/hash_table/destroy_callback.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright © 2009 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.
+ *
+ * Authors:
+ * Eric Anholt <eric at anholt.net>
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include "hash_table.h"
+
+static const char *str1 = "test1";
+static const char *str2 = "test2";
+static int delete_str1 = 0;
+static int delete_str2 = 0;
+
+static void
+delete_callback(struct hash_entry *entry)
+{
+ if (strcmp(entry->key, str1) == 0)
+ delete_str1 = 1;
+ else if (strcmp(entry->key, str2) == 0)
+ delete_str2 = 1;
+ else
+ abort();
+}
+
+int
+main(int argc, char **argv)
+{
+ struct hash_table *ht;
+ uint32_t hash_str1 = _mesa_hash_string(str1);
+ uint32_t hash_str2 = _mesa_hash_string(str2);
+
+ ht = _mesa_hash_table_create(NULL, _mesa_key_string_equal);
+
+ _mesa_hash_table_insert(ht, hash_str1, str1, NULL);
+ _mesa_hash_table_insert(ht, hash_str2, str2, NULL);
+
+ _mesa_hash_table_destroy(ht, delete_callback);
+
+ assert(delete_str1 && delete_str2);
+
+ return 0;
+}
diff --git a/src/util/tests/hash_table/insert_and_lookup.c b/src/util/tests/hash_table/insert_and_lookup.c
new file mode 100644
index 0000000..402f3fd
--- /dev/null
+++ b/src/util/tests/hash_table/insert_and_lookup.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright © 2009 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.
+ *
+ * Authors:
+ * Eric Anholt <eric at anholt.net>
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include "hash_table.h"
+
+int
+main(int argc, char **argv)
+{
+ struct hash_table *ht;
+ const char *str1 = "test1";
+ const char *str2 = "test2";
+ uint32_t hash_str1 = _mesa_hash_string(str1);
+ uint32_t hash_str2 = _mesa_hash_string(str2);
+ struct hash_entry *entry;
+
+ ht = _mesa_hash_table_create(NULL, _mesa_key_string_equal);
+
+ _mesa_hash_table_insert(ht, hash_str1, str1, NULL);
+ _mesa_hash_table_insert(ht, hash_str2, str2, NULL);
+
+ entry = _mesa_hash_table_search(ht, hash_str1, str1);
+ assert(strcmp(entry->key, str1) == 0);
+
+ entry = _mesa_hash_table_search(ht, hash_str2, str2);
+ assert(strcmp(entry->key, str2) == 0);
+
+ _mesa_hash_table_destroy(ht, NULL);
+
+ return 0;
+}
diff --git a/src/util/tests/hash_table/insert_many.c b/src/util/tests/hash_table/insert_many.c
new file mode 100644
index 0000000..b2122dc
--- /dev/null
+++ b/src/util/tests/hash_table/insert_many.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright © 2009 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.
+ *
+ * Authors:
+ * Eric Anholt <eric at anholt.net>
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include "hash_table.h"
+
+static uint32_t
+key_value(const void *key)
+{
+ return *(const uint32_t *)key;
+}
+
+static bool
+uint32_t_key_equals(const void *a, const void *b)
+{
+ return key_value(a) == key_value(b);
+}
+
+int
+main(int argc, char **argv)
+{
+ struct hash_table *ht;
+ struct hash_entry *entry;
+ int size = 10000;
+ uint32_t keys[size];
+ uint32_t i;
+
+ ht = _mesa_hash_table_create(NULL, uint32_t_key_equals);
+
+ for (i = 0; i < size; i++) {
+ keys[i] = i;
+
+ _mesa_hash_table_insert(ht, i, keys + i, NULL);
+ }
+
+ for (i = 0; i < size; i++) {
+ entry = _mesa_hash_table_search(ht, i, keys + i);
+ assert(entry);
+ assert(key_value(entry->key) == i);
+ }
+ assert(ht->entries == size);
+
+ _mesa_hash_table_destroy(ht, NULL);
+
+ return 0;
+}
diff --git a/src/util/tests/hash_table/null_destroy.c b/src/util/tests/hash_table/null_destroy.c
new file mode 100644
index 0000000..3833464
--- /dev/null
+++ b/src/util/tests/hash_table/null_destroy.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright © 2009 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.
+ *
+ * Authors:
+ * Eric Anholt <eric at anholt.net>
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include "hash_table.h"
+
+int
+main(int argc, char **argv)
+{
+ _mesa_hash_table_destroy(NULL, NULL);
+
+ return 0;
+}
diff --git a/src/util/tests/hash_table/random_entry.c b/src/util/tests/hash_table/random_entry.c
new file mode 100644
index 0000000..22cafa7
--- /dev/null
+++ b/src/util/tests/hash_table/random_entry.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright © 2009 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.
+ *
+ * Authors:
+ * Eric Anholt <eric at anholt.net>
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include "hash_table.h"
+
+static uint32_t
+key_value(const void *key)
+{
+ return *(const uint32_t *)key;
+}
+
+static bool
+uint32_t_key_equals(const void *a, const void *b)
+{
+ return key_value(a) == key_value(b);
+}
+
+static bool
+uint32_t_key_is_even(struct hash_entry *entry)
+{
+ return (key_value(entry->key) & 1) == 0;
+}
+
+int
+main(int argc, char **argv)
+{
+ struct hash_table *ht;
+ struct hash_entry *entry;
+ int size = 10000;
+ uint32_t keys[size];
+ uint32_t i, random_value;
+
+ ht = _mesa_hash_table_create(NULL, uint32_t_key_equals);
+
+ for (i = 0; i < size; i++) {
+ keys[i] = i;
+
+ _mesa_hash_table_insert(ht, i, keys + i, NULL);
+ }
+
+ /* Test the no-predicate case. */
+ entry = _mesa_hash_table_random_entry(ht, NULL);
+ assert(entry);
+
+ /* Check that we're getting different entries and that the predicate
+ * works.
+ */
+ for (i = 0; i < 100; i++) {
+ entry = _mesa_hash_table_random_entry(ht, uint32_t_key_is_even);
+ assert(entry);
+ assert((key_value(entry->key) & 1) == 0);
+ if (i == 0 || key_value(entry->key) != random_value)
+ break;
+ random_value = key_value(entry->key);
+ }
+ assert(i != 100);
+
+ _mesa_hash_table_destroy(ht, NULL);
+
+ return 0;
+}
diff --git a/src/util/tests/hash_table/remove_null.c b/src/util/tests/hash_table/remove_null.c
new file mode 100644
index 0000000..90fb784
--- /dev/null
+++ b/src/util/tests/hash_table/remove_null.c
@@ -0,0 +1,45 @@
+/*
+ * Copyright © 2011 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.
+ *
+ * Authors:
+ * Eric Anholt <eric at anholt.net>
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include "hash_table.h"
+
+int
+main(int argc, char **argv)
+{
+ struct hash_table *ht;
+
+ ht = _mesa_hash_table_create(NULL, _mesa_key_string_equal);
+
+ _mesa_hash_table_remove(ht, NULL);
+
+ _mesa_hash_table_destroy(ht, NULL);
+
+ return 0;
+}
diff --git a/src/util/tests/hash_table/replacement.c b/src/util/tests/hash_table/replacement.c
new file mode 100644
index 0000000..387cfc0
--- /dev/null
+++ b/src/util/tests/hash_table/replacement.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright © 2011 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.
+ *
+ * Authors:
+ * Eric Anholt <eric at anholt.net>
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include "hash_table.h"
+
+int
+main(int argc, char **argv)
+{
+ struct hash_table *ht;
+ char *str1 = strdup("test1");
+ char *str2 = strdup("test1");
+ uint32_t hash_str1 = _mesa_hash_string(str1);
+ uint32_t hash_str2 = _mesa_hash_string(str2);
+ struct hash_entry *entry;
+
+ assert(str1 != str2);
+
+ ht = _mesa_hash_table_create(NULL, _mesa_key_string_equal);
+
+ _mesa_hash_table_insert(ht, hash_str1, str1, str1);
+ _mesa_hash_table_insert(ht, hash_str2, str2, str2);
+
+ entry = _mesa_hash_table_search(ht, hash_str1, str1);
+ assert(entry);
+ assert(entry->data == str2);
+
+ _mesa_hash_table_remove(ht, entry);
+
+ entry = _mesa_hash_table_search(ht, hash_str1, str1);
+ assert(!entry);
+
+ _mesa_hash_table_destroy(ht, NULL);
+ free(str1);
+ free(str2);
+
+ return 0;
+}
--
2.0.1
More information about the mesa-dev
mailing list