On 08/26/2013 04:43 AM, Timothy Arceri wrote:
Signed-off-by: Timothy Arceri <t_arc...@yahoo.com.au>
---
src/mesa/main/hash.c | 26 ++++++++++++++++++++++++++
src/mesa/main/hash.h | 3 +++
2 files changed, 29 insertions(+)
diff --git a/src/mesa/main/hash.c b/src/mesa/main/hash.c
index 6591af9..8dde8b1 100644
--- a/src/mesa/main/hash.c
+++ b/src/mesa/main/hash.c
@@ -302,6 +302,32 @@ _mesa_HashDeleteAll(struct _mesa_HashTable *table,
/**
+ * Clone all entries in a hash table, into a new table.
+ *
+ * \param table the hash table to clone
+ */
+struct _mesa_HashTable *
+_mesa_HashClone(struct _mesa_HashTable *table)
Can that be const qualified?
+{
+ struct hash_entry *entry;
+ struct _mesa_HashTable *clonetable;
+
+ ASSERT(table);
+ _glthread_LOCK_MUTEX(table->Mutex);
+
+ clonetable = _mesa_NewHashTable();
+ assert(clonetable);
+ hash_table_foreach(table->ht, entry) {
+ _mesa_HashInsert(clonetable, (GLint)(uintptr_t)entry->key, entry->data);
+ }
+
+ _glthread_UNLOCK_MUTEX(table->Mutex);
+
+ return clonetable;
+}
+
+
+/**
* Walk over all entries in a hash table, calling callback function for each.
* Note: we use a separate mutex in this function to avoid a recursive
* locking deadlock (in case the callback calls _mesa_HashRemove()) and to
diff --git a/src/mesa/main/hash.h b/src/mesa/main/hash.h
index 142d284..9208701 100644
--- a/src/mesa/main/hash.h
+++ b/src/mesa/main/hash.h
@@ -50,6 +50,9 @@ _mesa_HashDeleteAll(struct _mesa_HashTable *table,
void (*callback)(GLuint key, void *data, void *userData),
void *userData);
+extern struct _mesa_HashTable *
+_mesa_HashClone(struct _mesa_HashTable *table);
+
extern void
_mesa_HashWalk(const struct _mesa_HashTable *table,
void (*callback)(GLuint key, void *data, void *userData),
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