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-rw-r--r--src/shared/hashmap.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/src/shared/hashmap.c b/src/shared/hashmap.c
index ef78070f4c..dcfbb67228 100644
--- a/src/shared/hashmap.c
+++ b/src/shared/hashmap.c
@@ -147,6 +147,25 @@ int trivial_compare_func(const void *a, const void *b) {
return a < b ? -1 : (a > b ? 1 : 0);
}
+unsigned uint64_hash_func(const void *p) {
+ uint64_t u;
+
+ assert_cc(sizeof(uint64_t) == 2*sizeof(unsigned));
+
+ u = *(const uint64_t*) p;
+
+ return (unsigned) ((u >> 32) ^ u);
+}
+
+int uint64_compare_func(const void *_a, const void *_b) {
+ uint64_t a, b;
+
+ a = *(const uint64_t*) _a;
+ b = *(const uint64_t*) _b;
+
+ return a < b ? -1 : (a > b ? 1 : 0);
+}
+
Hashmap *hashmap_new(hash_func_t hash_func, compare_func_t compare_func) {
bool b;
Hashmap *h;