diff options
Diffstat (limited to 'luaevent/src')
-rw-r--r-- | luaevent/src/luaevent.c | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/luaevent/src/luaevent.c b/luaevent/src/luaevent.c deleted file mode 100644 index 38f19ce..0000000 --- a/luaevent/src/luaevent.c +++ /dev/null @@ -1,184 +0,0 @@ -/* LuaEvent - Copyright (C) 2007 Thomas Harning <harningt@gmail.com> - * Licensed as LGPL - See doc/COPYING for details */ - #include "luaevent.h" - -#include <lua.h> -#include <lauxlib.h> -#include <assert.h> - -#define EVENT_BASE_MT "EVENT_BASE_MT" -#define EVENT_CALLBACK_ARG_MT "EVENT_CALLBACK_ARG_MT" -#define MAIN_THREAD_LOCATION 1 - -void setMainThread(lua_State* L) { - lua_pushthread(L); - lua_rawseti(L, LUA_ENVIRONINDEX, MAIN_THREAD_LOCATION); -} -lua_State* getMainThread(lua_State* L) { - lua_State* g_L; - lua_rawgeti(L, LUA_ENVIRONINDEX, MAIN_THREAD_LOCATION); - g_L = lua_tothread(L, -1); - lua_pop(L, 1); - return g_L; -} - -int luaevent_newbase(lua_State* L) { - le_base *base = (le_base*)lua_newuserdata(L, sizeof(le_base)); - base->loop_L = NULL; /* No running loop */ - base->base = event_init(); - luaL_getmetatable(L, EVENT_BASE_MT); - lua_setmetatable(L, -2); - return 1; -} - -void freeCallbackArgs(le_callback* arg, lua_State* L) { - if(arg->base) { - arg->base = NULL; - event_del(&arg->ev); - luaL_unref(L, LUA_REGISTRYINDEX, arg->callbackRef); - } -} -/* le_callback is allocated at the beginning of the coroutine in which it -is used, no need to manually de-allocate */ - -/* Index for coroutine is fd as integer for *nix, as lightuserdata for Win */ -static void luaevent_callback(int fd, short event, void* p) { - le_callback* arg = p; - lua_State* L; - int ret; - assert(arg && arg->base && arg->base->loop_L); - L = arg->base->loop_L; - lua_rawgeti(L, LUA_REGISTRYINDEX, arg->callbackRef); - lua_pushinteger(L, event); - lua_call(L, 1, 1); - ret = lua_tointeger(L, -1); - lua_pop(L, 1); - if(ret == -1) { - freeCallbackArgs(arg, L); - } else { - struct event *ev = &arg->ev; - int newEvent = ret; - if(newEvent != event) { // Need to hook up new event... - event_del(ev); - event_set(ev, fd, EV_PERSIST | newEvent, luaevent_callback, arg); - event_add(ev, NULL); - } - } -} - -static int luaevent_base_gc(lua_State* L) { - le_base *base = luaL_checkudata(L, 1, EVENT_BASE_MT); - if(base->base) { - event_base_free(base->base); - base->base = NULL; - } - return 0; -} - -static int luaevent_cb_gc(lua_State* L) { - le_callback* arg = luaL_checkudata(L, 1, EVENT_CALLBACK_ARG_MT); - freeCallbackArgs(arg, L); - return 0; -} - -int getSocketFd(lua_State* L, int idx) { - int fd; - luaL_checktype(L, idx, LUA_TUSERDATA); - lua_getfield(L, idx, "getfd"); - if(lua_isnil(L, -1)) - return luaL_error(L, "Socket type missing 'getfd' method"); - lua_pushvalue(L, idx); - lua_call(L, 1, 1); - fd = lua_tointeger(L, -1); - lua_pop(L, 1); - return fd; -} - -/* sock, event, callback */ -static int luaevent_addevent(lua_State* L) { - int fd, event, callbackRef; - le_callback* arg; - le_base *base = luaL_checkudata(L, 1, EVENT_BASE_MT); - fd = getSocketFd(L, 2); - event = luaL_checkinteger(L, 3); - luaL_checktype(L, 4, LUA_TFUNCTION); - lua_pushvalue(L, 4); - callbackRef = luaL_ref(L, LUA_REGISTRYINDEX); - arg = lua_newuserdata(L, sizeof(*arg)); - luaL_getmetatable(L, EVENT_CALLBACK_ARG_MT); - lua_setmetatable(L, -2); - - arg->base = base; - arg->callbackRef = callbackRef; - /* Setup event... */ - event_set(&arg->ev, fd, event | EV_PERSIST, luaevent_callback, arg); - event_base_set(base->base, &arg->ev); - event_add(&arg->ev, NULL); - return 1; -} - -static int luaevent_loop(lua_State* L) { - le_base *base = luaL_checkudata(L, 1, EVENT_BASE_MT); - base->loop_L = L; - int ret = event_base_loop(base->base, 0); - lua_pushinteger(L, ret); - return 1; -} - -static luaL_Reg base_funcs[] = { - { "addevent", luaevent_addevent }, - { "loop", luaevent_loop }, - { NULL, NULL } -}; - -static luaL_Reg funcs[] = { - { "new", luaevent_newbase }, - { NULL, NULL } -}; - -typedef struct { - const char* name; - int value; -} namedInteger; - -static namedInteger consts[] = { - {"LEAVE", -1}, - {"EV_READ", EV_READ}, - {"EV_WRITE", EV_WRITE}, - {NULL, 0} -}; - -void setNamedIntegers(lua_State* L, namedInteger* p) { - while(p->name) { - lua_pushinteger(L, p->value); - lua_setfield(L, -2, p->name); - p++; - } -} - -/* Verified ok */ -int luaopen_luaevent_core(lua_State* L) { - /* Setup environ table */ - lua_createtable(L, 1, 0); - lua_replace(L, LUA_ENVIRONINDEX); - /* Setup metatable */ - luaL_newmetatable(L, EVENT_BASE_MT); - lua_newtable(L); - luaL_register(L, NULL, base_funcs); - lua_setfield(L, -2, "__index"); - lua_pushcfunction(L, luaevent_base_gc); - lua_setfield(L, -2, "__gc"); - lua_pop(L, 1); - luaL_newmetatable(L, EVENT_CALLBACK_ARG_MT); - lua_pushcfunction(L, luaevent_cb_gc); - lua_setfield(L, -2, "__gc"); - lua_newtable(L); - lua_pushcfunction(L, luaevent_cb_gc); - lua_setfield(L, -2, "close"); - lua_setfield(L, -2, "__index"); - lua_pop(L, 1); - - luaL_register(L, "luaevent.core", funcs); - setNamedIntegers(L, consts); - return 1; -} |