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, 0 };
95 if(lua_gettop(L
) >= 2) /* Optional timeout before exiting the loop */
96 load_timeval(luaL_checknumber(L
, 2), &tv
);
97 int ret
= event_base_loopexit(base
->base
, &tv
);
98 lua_pushinteger(L
, ret
);
102 static int luaevent_method(lua_State
* L
) {
103 le_base
*base
= event_base_get(L
, 1);
104 lua_pushstring(L
, event_base_get_method(base
->base
));
108 static luaL_Reg base_funcs
[] = {
109 { "addevent", luaevent_addevent
},
110 { "loop", luaevent_loop
},
111 { "loopexit", luaevent_loopexit
},
112 { "method", luaevent_method
},
116 static luaL_Reg funcs
[] = {
117 { "new", luaevent_newbase
},
126 static namedInteger consts
[] = {
128 {"EV_READ", EV_READ
},
129 {"EV_WRITE", EV_WRITE
},
130 {"EV_TIMEOUT", EV_TIMEOUT
},
131 {"EV_SIGNAL", EV_SIGNAL
},
132 {"EV_PERSIST", EV_PERSIST
},
134 {"EVBUFFER_READ", EVBUFFER_READ
},
135 {"EVBUFFER_WRITE", EVBUFFER_WRITE
},
136 {"EVBUFFER_EOF", EVBUFFER_EOF
},
137 {"EVBUFFER_ERROR", EVBUFFER_ERROR
},
138 {"EVBUFFER_TIMEOUT", EVBUFFER_TIMEOUT
},
142 void setNamedIntegers(lua_State
* L
, namedInteger
* p
) {
144 lua_pushinteger(L
, p
->value
);
145 lua_setfield(L
, -2, p
->name
);
151 int luaopen_luaevent_core(lua_State
* L
) {
153 WORD wVersionRequested
= MAKEWORD(2, 2);
155 WSAStartup(wVersionRequested
, &wsaData
);
158 /* Register external items */
159 event_callback_register(L
);
160 event_buffer_register(L
);
161 buffer_event_register(L
);
163 /* Setup metatable */
164 luaL_newmetatable(L
, EVENT_BASE_MT
);
166 luaL_register(L
, NULL
, base_funcs
);
167 lua_setfield(L
, -2, "__index");
168 lua_pushcfunction(L
, luaevent_base_gc
);
169 lua_setfield(L
, -2, "__gc");
172 luaL_register(L
, "luaevent.core", funcs
);
173 setNamedIntegers(L
, consts
);