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