rename session_filter to session_dabloom

infra/session_manager/session_dabloom.c

@@ -0,0 +1,60 @@
+#include "dablooms.h"
+#include "session_dabloom.h"
+
+struct session_dabloom
+{
+    struct expiry_dablooms_handle *dablooms;
+};
+
+struct session_dabloom *session_dabloom_new(uint32_t capacity, uint32_t timeout, double error_rate, uint64_t now)
+{
+    struct session_dabloom *sess_dab = (struct session_dabloom *)calloc(1, sizeof(struct session_dabloom));
+    if (sess_dab == NULL)
+    {
+        return NULL;
+    }
+
+    sess_dab->dablooms = expiry_dablooms_new(capacity, error_rate, now, timeout);
+    if (sess_dab->dablooms == NULL)
+    {
+        free(sess_dab);
+        return NULL;
+    }
+
+    return sess_dab;
+}
+
+void session_dabloom_free(struct session_dabloom *sess_dab)
+{
+    if (sess_dab)
+    {
+        if (sess_dab->dablooms)
+        {
+            expiry_dablooms_free(sess_dab->dablooms);
+            sess_dab->dablooms = NULL;
+        }
+        free(sess_dab);
+        sess_dab = NULL;
+    }
+}
+
+// return 1: found
+// reutrn 0: no found
+int session_dabloom_lookup(struct session_dabloom *sess_dab, const struct tuple6 *key, uint64_t now)
+{
+    if (expiry_dablooms_search(sess_dab->dablooms, (const char *)key, sizeof(struct tuple6), now) == 1)
+    {
+        return 1;
+    }
+
+    return 0;
+}
+
+void session_dabloom_add(struct session_dabloom *sess_dab, const struct tuple6 *key, uint64_t now)
+{
+    struct tuple6 reverse_key;
+    tuple6_reverse(key, &reverse_key);
+
+    expiry_dablooms_add(sess_dab->dablooms, (const char *)key, sizeof(struct tuple6), now);
+    expiry_dablooms_add(sess_dab->dablooms, (const char *)&reverse_key, sizeof(struct tuple6), now);
+}