Mesa (master): mesa: add _mesa_HashNumEntries() function

[Brian Paul]

Module: Mesa
Branch: master
Commit: f1b33c74dc11b97a86a7f0e9cbe4cb168b2b9540
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=f1b33c74dc11b97a86a7f0e9cbe4cb168b2b9540

Author: Brian Paul <brianp at vmware.com>
Date:   Wed Jan 11 12:58:43 2012 -0700

mesa: add _mesa_HashNumEntries() function

Useful when debugging to find the number of texture objects, shader
programs, etc.

---

 src/mesa/main/hash.c |   20 ++++++++++++++++++++
 src/mesa/main/hash.h |    3 +++
 2 files changed, 23 insertions(+), 0 deletions(-)

diff --git a/src/mesa/main/hash.c b/src/mesa/main/hash.c
index 4b250ad..61c369a 100644
--- a/src/mesa/main/hash.c
+++ b/src/mesa/main/hash.c
@@ -480,6 +480,26 @@ _mesa_HashFindFreeKeyBlock(struct _mesa_HashTable *table, GLuint numKeys)
 }
 
 
+/**
+ * Return the number of entries in the hash table.
+ */
+GLuint
+_mesa_HashNumEntries(const struct _mesa_HashTable *table)
+{
+   GLuint pos, count = 0;
+
+   for (pos = 0; pos < TABLE_SIZE; pos++) {
+      const struct HashEntry *entry;
+      for (entry = table->Table[pos]; entry; entry = entry->Next) {
+         count++;
+      }
+   }
+
+   return count;
+}
+
+
+
 #if 0 /* debug only */
 
 /**
diff --git a/src/mesa/main/hash.h b/src/mesa/main/hash.h
index 4f916f9..e935f8d 100644
--- a/src/mesa/main/hash.h
+++ b/src/mesa/main/hash.h
@@ -63,6 +63,9 @@ extern void _mesa_HashPrint(const struct _mesa_HashTable *table);
 
 extern GLuint _mesa_HashFindFreeKeyBlock(struct _mesa_HashTable *table, GLuint numKeys);
 
+extern GLuint
+_mesa_HashNumEntries(const struct _mesa_HashTable *table);
+
 extern void _mesa_test_hash_functions(void);