#include "glheader.h"
#include "imports.h"
-#include "glapi/glthread.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.
struct _mesa_HashTable {
struct hash_table *ht;
GLuint MaxKey; /**< highest key inserted so far */
- _glthread_Mutex Mutex; /**< mutual exclusion lock */
- _glthread_Mutex WalkMutex; /**< for _mesa_HashWalk() */
+ mtx_t Mutex; /**< mutual exclusion lock */
+ mtx_t WalkMutex; /**< for _mesa_HashWalk() */
GLboolean InDeleteAll; /**< Debug check */
/** Value that would be in the table for DELETED_KEY_VALUE. */
void *deleted_key_data;
if (table) {
table->ht = _mesa_hash_table_create(NULL, uint_key_compare);
+ if (table->ht == NULL) {
+ free(table);
+ _mesa_error_no_memory(__func__);
+ return NULL;
+ }
+
_mesa_hash_table_set_deleted_key(table->ht, uint_key(DELETED_KEY_VALUE));
- _glthread_INIT_MUTEX(table->Mutex);
- _glthread_INIT_MUTEX(table->WalkMutex);
+ mtx_init(&table->Mutex, mtx_plain);
+ mtx_init(&table->WalkMutex, mtx_plain);
+ }
+ else {
+ _mesa_error_no_memory(__func__);
}
+
return table;
}
_mesa_hash_table_destroy(table->ht, NULL);
- _glthread_DESTROY_MUTEX(table->Mutex);
- _glthread_DESTROY_MUTEX(table->WalkMutex);
+ mtx_destroy(&table->Mutex);
+ mtx_destroy(&table->WalkMutex);
free(table);
}
{
void *res;
assert(table);
- _glthread_LOCK_MUTEX(table->Mutex);
+ mtx_lock(&table->Mutex);
res = _mesa_HashLookup_unlocked(table, key);
- _glthread_UNLOCK_MUTEX(table->Mutex);
+ mtx_unlock(&table->Mutex);
return res;
}
/**
- * Insert a key/pointer pair into the hash table.
- * If an entry with this key already exists we'll replace the existing entry.
- *
+ * Lookup an entry in the hash table without locking the mutex.
+ *
+ * The hash table mutex must be locked manually by calling
+ * _mesa_HashLockMutex() before calling this function.
+ *
+ * \param table the hash table.
+ * \param key the key.
+ *
+ * \return pointer to user's data or NULL if key not in table
+ */
+void *
+_mesa_HashLookupLocked(struct _mesa_HashTable *table, GLuint key)
+{
+ return _mesa_HashLookup_unlocked(table, key);
+}
+
+
+/**
+ * Lock the hash table mutex.
+ *
+ * This function should be used when multiple objects need
+ * to be looked up in the hash table, to avoid having to lock
+ * and unlock the mutex each time.
+ *
* \param table the hash table.
- * \param key the key (not zero).
- * \param data pointer to user data.
*/
void
-_mesa_HashInsert(struct _mesa_HashTable *table, GLuint key, void *data)
+_mesa_HashLockMutex(struct _mesa_HashTable *table)
+{
+ assert(table);
+ mtx_lock(&table->Mutex);
+}
+
+
+/**
+ * Unlock the hash table mutex.
+ *
+ * \param table the hash table.
+ */
+void
+_mesa_HashUnlockMutex(struct _mesa_HashTable *table)
+{
+ assert(table);
+ mtx_unlock(&table->Mutex);
+}
+
+
+static inline void
+_mesa_HashInsert_unlocked(struct _mesa_HashTable *table, GLuint key, void *data)
{
uint32_t hash = uint_hash(key);
struct hash_entry *entry;
assert(table);
assert(key);
- _glthread_LOCK_MUTEX(table->Mutex);
-
if (key > table->MaxKey)
table->MaxKey = key;
_mesa_hash_table_insert(table->ht, hash, uint_key(key), data);
}
}
+}
- _glthread_UNLOCK_MUTEX(table->Mutex);
+
+/**
+ * Insert a key/pointer pair into the hash table without locking the mutex.
+ * If an entry with this key already exists we'll replace the existing entry.
+ *
+ * The hash table mutex must be locked manually by calling
+ * _mesa_HashLockMutex() before calling this function.
+ *
+ * \param table the hash table.
+ * \param key the key (not zero).
+ * \param data pointer to user data.
+ */
+void
+_mesa_HashInsertLocked(struct _mesa_HashTable *table, GLuint key, void *data)
+{
+ _mesa_HashInsert_unlocked(table, key, data);
}
+/**
+ * Insert a key/pointer pair into the hash table.
+ * If an entry with this key already exists we'll replace the existing entry.
+ *
+ * \param table the hash table.
+ * \param key the key (not zero).
+ * \param data pointer to user data.
+ */
+void
+_mesa_HashInsert(struct _mesa_HashTable *table, GLuint key, void *data)
+{
+ assert(table);
+ mtx_lock(&table->Mutex);
+ _mesa_HashInsert_unlocked(table, key, data);
+ mtx_unlock(&table->Mutex);
+}
+
/**
* Remove an entry from the hash table.
return;
}
- _glthread_LOCK_MUTEX(table->Mutex);
+ mtx_lock(&table->Mutex);
if (key == DELETED_KEY_VALUE) {
table->deleted_key_data = NULL;
} else {
entry = _mesa_hash_table_search(table->ht, uint_hash(key), uint_key(key));
_mesa_hash_table_remove(table->ht, entry);
}
- _glthread_UNLOCK_MUTEX(table->Mutex);
+ mtx_unlock(&table->Mutex);
}
ASSERT(table);
ASSERT(callback);
- _glthread_LOCK_MUTEX(table->Mutex);
+ mtx_lock(&table->Mutex);
table->InDeleteAll = GL_TRUE;
hash_table_foreach(table->ht, entry) {
callback((uintptr_t)entry->key, entry->data, userData);
table->deleted_key_data = NULL;
}
table->InDeleteAll = GL_FALSE;
- _glthread_UNLOCK_MUTEX(table->Mutex);
+ mtx_unlock(&table->Mutex);
+}
+
+
+/**
+ * Clone all entries in a hash table, into a new table.
+ *
+ * \param table the hash table to clone
+ */
+struct _mesa_HashTable *
+_mesa_HashClone(const struct _mesa_HashTable *table)
+{
+ /* cast-away const */
+ struct _mesa_HashTable *table2 = (struct _mesa_HashTable *) table;
+ struct hash_entry *entry;
+ struct _mesa_HashTable *clonetable;
+
+ ASSERT(table);
+ mtx_lock(&table2->Mutex);
+
+ clonetable = _mesa_NewHashTable();
+ assert(clonetable);
+ hash_table_foreach(table->ht, entry) {
+ _mesa_HashInsert(clonetable, (GLint)(uintptr_t)entry->key, entry->data);
+ }
+
+ mtx_unlock(&table2->Mutex);
+
+ return clonetable;
}
ASSERT(table);
ASSERT(callback);
- _glthread_LOCK_MUTEX(table2->WalkMutex);
+ mtx_lock(&table2->WalkMutex);
hash_table_foreach(table->ht, entry) {
callback((uintptr_t)entry->key, entry->data, userData);
}
if (table->deleted_key_data)
callback(DELETED_KEY_VALUE, table->deleted_key_data, userData);
- _glthread_UNLOCK_MUTEX(table2->WalkMutex);
+ mtx_unlock(&table2->WalkMutex);
}
static void
_mesa_HashFindFreeKeyBlock(struct _mesa_HashTable *table, GLuint numKeys)
{
const GLuint maxKey = ~((GLuint) 0) - 1;
- _glthread_LOCK_MUTEX(table->Mutex);
+ mtx_lock(&table->Mutex);
if (maxKey - numKeys > table->MaxKey) {
/* the quick solution */
- _glthread_UNLOCK_MUTEX(table->Mutex);
+ mtx_unlock(&table->Mutex);
return table->MaxKey + 1;
}
else {
/* this key not in use, check if we've found enough */
freeCount++;
if (freeCount == numKeys) {
- _glthread_UNLOCK_MUTEX(table->Mutex);
+ mtx_unlock(&table->Mutex);
return freeStart;
}
}
}
/* cannot allocate a block of numKeys consecutive keys */
- _glthread_UNLOCK_MUTEX(table->Mutex);
+ mtx_unlock(&table->Mutex);
return 0;
}
}
projects / mesa.git / blobdiff