dispatch_naming.c (2716B)
1 /* Copyright (c) 2001, Matej Pfajfar. 2 * Copyright (c) 2001-2004, Roger Dingledine. 3 * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson. 4 * Copyright (c) 2007-2021, The Tor Project, Inc. */ 5 /* See LICENSE for licensing information */ 6 7 /** 8 * @file dispatch_naming.c 9 * @brief Name-to-ID maps for our message dispatch system. 10 **/ 11 12 #include "orconfig.h" 13 14 #include "lib/cc/compat_compiler.h" 15 16 #include "lib/dispatch/dispatch_naming.h" 17 #include "lib/dispatch/msgtypes.h" 18 19 #include "lib/container/namemap.h" 20 #include "lib/container/namemap_st.h" 21 22 #include "lib/log/util_bug.h" 23 #include "lib/log/log.h" 24 25 #include <stdlib.h> 26 27 /** Global namemap for message IDs. */ 28 static namemap_t message_id_map = NAMEMAP_INIT(); 29 /** Global namemap for subsystem IDs. */ 30 static namemap_t subsys_id_map = NAMEMAP_INIT(); 31 /** Global namemap for channel IDs. */ 32 static namemap_t channel_id_map = NAMEMAP_INIT(); 33 /** Global namemap for message type IDs. */ 34 static namemap_t msg_type_id_map = NAMEMAP_INIT(); 35 36 void 37 dispatch_naming_init(void) 38 { 39 } 40 41 #ifndef COCCI 42 /* Helper macro: declare functions to map IDs to and from names for a given 43 * type in a namemap_t. 44 */ 45 #define DECLARE_ID_MAP_FNS(type) \ 46 type##_id_t \ 47 get_##type##_id(const char *name) \ 48 { \ 49 unsigned u = namemap_get_or_create_id(&type##_id_map, name); \ 50 tor_assert(u != NAMEMAP_ERR); \ 51 tor_assert(u != ERROR_ID); \ 52 return (type##_id_t) u; \ 53 } \ 54 const char * \ 55 get_##type##_id_name(type##_id_t id) \ 56 { \ 57 return namemap_fmt_name(&type##_id_map, id); \ 58 } \ 59 size_t \ 60 get_num_##type##_ids(void) \ 61 { \ 62 return namemap_get_size(&type##_id_map); \ 63 } \ 64 EAT_SEMICOLON 65 #endif /* !defined(COCCI) */ 66 67 DECLARE_ID_MAP_FNS(message); 68 DECLARE_ID_MAP_FNS(channel); 69 DECLARE_ID_MAP_FNS(subsys); 70 DECLARE_ID_MAP_FNS(msg_type);