1 /* LuaEvent - Copyright (C) 2007 Thomas Harning <harningt@gmail.com>
2 * Licensed as LGPL - See doc/COPYING for details */
5 #include "event_callback.h"
6 #include "event_buffer.h"
7 #include "buffer_event.h"
13 #define EVENT_BASE_MT "EVENT_BASE_MT"
19 le_base
* event_base_get(lua_State
* L
, int idx
) {
20 return (le_base
*)luaL_checkudata(L
, idx
, EVENT_BASE_MT
);
23 int luaevent_newbase(lua_State
* L
) {
24 le_base
*base
= (le_base
*)lua_newuserdata(L
, sizeof(le_base
));
25 base
->loop_L
= NULL
; /* No running loop */
26 base
->base
= event_init();
27 luaL_getmetatable(L
, EVENT_BASE_MT
);
28 lua_setmetatable(L
, -2);
32 static int luaevent_base_gc(lua_State
* L
) {
33 le_base
*base
= event_base_get(L
, 1);
35 event_base_free(base
->base
);
41 int getSocketFd(lua_State
* L
, int idx
) {
43 luaL_checktype(L
, idx
, LUA_TUSERDATA
);
44 lua_getfield(L
, idx
, "getfd");
46 return luaL_error(L
, "Socket type missing 'getfd' method");
47 lua_pushvalue(L
, idx
);
49 fd
= lua_tointeger(L
, -1);
54 void load_timeval(double time
, struct timeval
*tv
) {
55 tv
->tv_sec
= (int)time
;
56 tv
->tv_usec
= (int)(time
* 1000000) % 1000000;
59 /* sock, event, callback, timeout */
60 static int luaevent_addevent(lua_State
* L
) {
62 le_callback
* arg
= event_callback_push(L
, 1, 4);
63 struct timeval
*tv
= &arg
->timeout
;
64 if(lua_isnil(L
, 2) && lua_isnumber(L
, 5)) {
65 fd
= -1; /* Per event_timer_set.... */
67 fd
= getSocketFd(L
, 2);
69 event
= luaL_checkinteger(L
, 3);
70 if(lua_isnumber(L
, 5)) {
71 double time
= lua_tonumber(L
, 5);
72 load_timeval(time
, tv
);
78 event_set(&arg
->ev
, fd
, event
| EV_PERSIST
, luaevent_callback
, arg
);
79 event_base_set(arg
->base
->base
, &arg
->ev
);
80 event_add(&arg
->ev
, tv
);
84 static int luaevent_loop(lua_State
* L
) {
85 le_base
*base
= event_base_get(L
, 1);
87 int ret
= event_base_loop(base
->base
, 0);
88 lua_pushinteger(L
, ret
);
92 static int luaevent_loopexit(lua_State
*L
) {
93 le_base
*base
= event_base_get(L
, 1);
94 struct timeval tv
= { 0, 10 };
95 int ret
= event_base_loopexit(base
->base
, &tv
);
96 lua_pushinteger(L
, ret
);
100 static luaL_Reg base_funcs
[] = {
101 { "addevent", luaevent_addevent
},
102 { "loop", luaevent_loop
},
103 { "loopexit", luaevent_loopexit
},
107 static luaL_Reg funcs
[] = {
108 { "new", luaevent_newbase
},
117 static namedInteger consts
[] = {
119 {"EV_READ", EV_READ
},
120 {"EV_WRITE", EV_WRITE
},
121 {"EV_TIMEOUT", EV_TIMEOUT
},
122 {"EV_SIGNAL", EV_SIGNAL
},
123 {"EV_PERSIST", EV_PERSIST
},
125 {"EVBUFFER_READ", EVBUFFER_READ
},
126 {"EVBUFFER_WRITE", EVBUFFER_WRITE
},
127 {"EVBUFFER_EOF", EVBUFFER_EOF
},
128 {"EVBUFFER_ERROR", EVBUFFER_ERROR
},
129 {"EVBUFFER_TIMEOUT", EVBUFFER_TIMEOUT
},
133 void setNamedIntegers(lua_State
* L
, namedInteger
* p
) {
135 lua_pushinteger(L
, p
->value
);
136 lua_setfield(L
, -2, p
->name
);
142 int luaopen_luaevent_core(lua_State
* L
) {
144 WORD wVersionRequested
= MAKEWORD(2, 2);
146 WSAStartup(wVersionRequested
, &wsaData
);
149 /* Register external items */
150 event_callback_register(L
);
151 event_buffer_register(L
);
152 buffer_event_register(L
);
154 /* Setup metatable */
155 luaL_newmetatable(L
, EVENT_BASE_MT
);
157 luaL_register(L
, NULL
, base_funcs
);
158 lua_setfield(L
, -2, "__index");
159 lua_pushcfunction(L
, luaevent_base_gc
);
160 lua_setfield(L
, -2, "__gc");
163 luaL_register(L
, "luaevent.core", funcs
);
164 setNamedIntegers(L
, consts
);