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+/* Copyright (c) 2003-2004, Roger Dingledine
+ * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
+ * Copyright (c) 2007-2020, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+#ifndef NAMEMAP_ST_H
+#define NAMEMAP_ST_H
+
+/**
+ * @file namemap_st.h
+ * @brief Internal declarations for namemap structure.
+ **/
+
+#include "lib/cc/compat_compiler.h"
+#include "ext/ht.h"
+
+struct smartlist_t;
+
+/** Longest allowed name that's allowed in a namemap_t. */
+#define MAX_NAMEMAP_NAME_LEN 128
+
+/** An entry inside a namemap_t. Maps a string to a numeric identifier. */
+typedef struct mapped_name_t {
+ HT_ENTRY(mapped_name_t) node;
+ unsigned intval;
+ char name[FLEXIBLE_ARRAY_MEMBER];
+} mapped_name_t;
+
+/** A structure that allocates small numeric identifiers for names and maps
+ * back and forth between them. */
+struct namemap_t {
+ HT_HEAD(namemap_ht, mapped_name_t) ht;
+ struct smartlist_t *names;
+};
+
+#ifndef COCCI
+/** Macro to initialize a namemap. */
+#define NAMEMAP_INIT() { HT_INITIALIZER(), NULL }
+#endif
+
+#endif /* !defined(NAMEMAP_ST_H) */