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authorNick Mathewson <nickm@torproject.org>2009-05-22 23:30:52 -0400
committerNick Mathewson <nickm@torproject.org>2009-05-22 23:30:52 -0400
commit793e97bb2a610dbd4cf8cfb2795f8b680d55a116 (patch)
treeed4fca067560228db3059433c82994c302f0262d /src/common/ht.h
parent9f69b3d94c86aa470d7927fe7f6a96693e5baf0c (diff)
downloadtor-793e97bb2a610dbd4cf8cfb2795f8b680d55a116.tar.gz
tor-793e97bb2a610dbd4cf8cfb2795f8b680d55a116.zip
Add a quick macro to calculate hashtable memory usage
Diffstat (limited to 'src/common/ht.h')
-rw-r--r--src/common/ht.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/common/ht.h b/src/common/ht.h
index ff1e5551cc..be747529ab 100644
--- a/src/common/ht.h
+++ b/src/common/ht.h
@@ -42,6 +42,10 @@
#define HT_SIZE(head) \
((head)->hth_n_entries)
+/* Return memory usage for a hashtable (not counting the entries themselves) */
+#define HT_MEM_USAGE(head) \
+ (sizeof(*head) + (head)->hth_table_length * sizeof(void*))
+
#define HT_FIND(name, head, elm) name##_HT_FIND((head), (elm))
#define HT_INSERT(name, head, elm) name##_HT_INSERT((head), (elm))
#define HT_REPLACE(name, head, elm) name##_HT_REPLACE((head), (elm))