Mercurial > luasocket

annotate src/luasocket.c @ 4:f0a27ccb1193 tip

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Added ignore file
author Eric Wing <ewing . public |-at-| gmail . com>
date Sat, 30 Aug 2008 08:46:39 -0700
parents 4b915342e2a8
children
rev   line source
0
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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1 /*=========================================================================*\
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2 * LuaSocket toolkit
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3 * Networking support for the Lua language
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4 * Diego Nehab
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5 * 26/11/1999
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6 *
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7 * This library is part of an effort to progressively increase the network
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8 * connectivity of the Lua language. The Lua interface to networking
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9 * functions follows the Sockets API closely, trying to simplify all tasks
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10 * involved in setting up both client and server connections. The provided
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11 * IO routines, however, follow the Lua style, being very similar to the
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12 * standard Lua read and write functions.
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13 *
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14 * RCS ID: $Id: luasocket.c,v 1.53 2005/10/07 04:40:59 diego Exp $
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15 \*=========================================================================*/
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16
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17 /*=========================================================================*\
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18 * Standard include files
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19 \*=========================================================================*/
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20 #include "lua.h"
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21 #include "lauxlib.h"
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22
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23 #if !defined(LUA_VERSION_NUM) || (LUA_VERSION_NUM < 501)
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24 #include "compat-5.1.h"
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25 #endif
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26
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27 /*=========================================================================*\
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28 * LuaSocket includes
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29 \*=========================================================================*/
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30 #include "luasocket.h"
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31 #include "auxiliar.h"
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32 #include "except.h"
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33 #include "timeout.h"
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34 #include "buffer.h"
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35 #include "inet.h"
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36 #include "tcp.h"
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37 #include "udp.h"
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38 #include "select.h"
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39
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40 /*-------------------------------------------------------------------------*\
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41 * Internal function prototypes
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42 \*-------------------------------------------------------------------------*/
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43 static int global_skip(lua_State *L);
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44 static int global_unload(lua_State *L);
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45 static int base_open(lua_State *L);
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46
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47 /*-------------------------------------------------------------------------*\
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48 * Modules and functions
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49 \*-------------------------------------------------------------------------*/
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50 static const luaL_reg mod[] = {
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51 {"auxiliar", auxiliar_open},
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52 {"except", except_open},
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53 {"timeout", timeout_open},
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54 {"buffer", buffer_open},
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55 {"inet", inet_open},
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56 {"tcp", tcp_open},
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57 {"udp", udp_open},
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58 {"select", select_open},
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59 {NULL, NULL}
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60 };
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61
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62 static luaL_reg func[] = {
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63 {"skip", global_skip},
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64 {"__unload", global_unload},
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65 {NULL, NULL}
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66 };
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67
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68 /*-------------------------------------------------------------------------*\
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69 * Skip a few arguments
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70 \*-------------------------------------------------------------------------*/
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71 static int global_skip(lua_State *L) {
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72 int amount = luaL_checkint(L, 1);
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73 int ret = lua_gettop(L) - amount - 1;
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74 return ret >= 0 ? ret : 0;
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75 }
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76
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77 /*-------------------------------------------------------------------------*\
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78 * Unloads the library
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79 \*-------------------------------------------------------------------------*/
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80 static int global_unload(lua_State *L) {
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81 (void) L;
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82 socket_close();
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83 return 0;
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84 }
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85
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86 /*-------------------------------------------------------------------------*\
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87 * Setup basic stuff.
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88 \*-------------------------------------------------------------------------*/
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89 static int base_open(lua_State *L) {
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90 if (socket_open()) {
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91 /* export functions (and leave namespace table on top of stack) */
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92 luaL_openlib(L, "socket", func, 0);
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93 #ifdef LUASOCKET_DEBUG
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94 lua_pushstring(L, "_DEBUG");
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95 lua_pushboolean(L, 1);
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96 lua_rawset(L, -3);
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97 #endif
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98 /* make version string available to scripts */
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99 lua_pushstring(L, "_VERSION");
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100 lua_pushstring(L, LUASOCKET_VERSION);
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101 lua_rawset(L, -3);
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102 return 1;
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103 } else {
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104 lua_pushstring(L, "unable to initialize library");
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105 lua_error(L);
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106 return 0;
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107 }
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108 }
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109
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110 /*-------------------------------------------------------------------------*\
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111 * Initializes all library modules.
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112 \*-------------------------------------------------------------------------*/
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113 LUASOCKET_API int luaopen_socket_core(lua_State *L) {
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114 int i;
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115 base_open(L);
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116 for (i = 0; mod[i].name; i++) mod[i].func(L);
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117 return 1;
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118 }