src/lib/container/namemap_st.h

   1 /* Copyright (c) 2003-2004, Roger Dingledine
   2  * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
   3  * Copyright (c) 2007-2021, The Tor Project, Inc. */
   4 /* See LICENSE for licensing information */
   5
   6 #ifndef NAMEMAP_ST_H
   7 #define NAMEMAP_ST_H
   8
   9 /**
  10  * @file namemap_st.h
  11  * @brief Internal declarations for namemap structure.
  12  **/
  13
  14 #include "lib/cc/compat_compiler.h"
  15 #include "ext/ht.h"
  16
  17 struct smartlist_t;
  18
  19 /** Longest allowed name that's allowed in a namemap_t. */
  20 #define MAX_NAMEMAP_NAME_LEN 128
  21
  22 /** An entry inside a namemap_t. Maps a string to a numeric identifier. */
  23 typedef struct mapped_name_t {
  24   HT_ENTRY(mapped_name_t) node;
  25   unsigned intval;
  26   char name[FLEXIBLE_ARRAY_MEMBER];
  27 } mapped_name_t;
  28
  29 /** A structure that allocates small numeric identifiers for names and maps
  30  * back and forth between them.  */
  31 struct namemap_t {
  32   HT_HEAD(namemap_ht, mapped_name_t) ht;
  33   struct smartlist_t *names;
  34 };
  35
  36 #ifndef COCCI
  37 /** Macro to initialize a namemap. */
  38 #define NAMEMAP_INIT() { HT_INITIALIZER(), NULL }
  39 #endif
  40
  41 #endif /* !defined(NAMEMAP_ST_H) */