137 lines
3.7 KiB
C
137 lines
3.7 KiB
C
/*
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* timer.c - Timer signals management
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*
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* Copyright © 2009 Julien Danjou <julien@danjou.info>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include <ev.h>
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#include "structs.h"
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#include "luaa.h"
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#include "timer.h"
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typedef struct
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{
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LUA_OBJECT_HEADER
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bool started;
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struct ev_timer timer;
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} atimer_t;
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static lua_class_t timer_class;
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LUA_OBJECT_FUNCS(timer_class, atimer_t, timer)
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static void
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ev_timer_emit_signal(struct ev_loop *loop, struct ev_timer *w, int revents)
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{
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luaA_object_push(globalconf.L, w->data);
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luaA_object_emit_signal(globalconf.L, -1, "timeout", 0);
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lua_pop(globalconf.L, 1);
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}
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static int
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luaA_timer_new(lua_State *L)
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{
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luaA_class_new(L, &timer_class);
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atimer_t *timer = luaA_checkudata(L, -1, &timer_class);
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timer->timer.data = timer;
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ev_set_cb(&timer->timer, ev_timer_emit_signal);
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return 1;
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}
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static int
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luaA_timer_set_timeout(lua_State *L, atimer_t *timer)
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{
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double timeout = luaL_checknumber(L, -1);
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ev_timer_set(&timer->timer, timeout, timeout);
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luaA_object_emit_signal(L, -3, "property::timeout", 0);
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return 0;
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}
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static int
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luaA_timer_get_timeout(lua_State *L, atimer_t *timer)
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{
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lua_pushnumber(L, timer->timer.repeat);
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return 1;
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}
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static int
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luaA_timer_start(lua_State *L)
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{
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atimer_t *timer = luaA_checkudata(L, 1, &timer_class);
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if(timer->started)
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luaA_warn(L, "timer already started");
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else
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{
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luaA_object_ref(L, 1);
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ev_timer_start(globalconf.loop, &timer->timer);
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timer->started = true;
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}
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return 0;
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}
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static int
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luaA_timer_stop(lua_State *L)
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{
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atimer_t *timer = luaA_checkudata(L, 1, &timer_class);
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if(timer->started)
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{
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ev_timer_stop(globalconf.loop, &timer->timer);
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luaA_object_unref(L, timer);
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timer->started = false;
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}
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else
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luaA_warn(L, "timer not started");
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return 0;
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}
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LUA_OBJECT_EXPORT_PROPERTY(timer, atimer_t, started, lua_pushboolean)
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void
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timer_class_setup(lua_State *L)
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{
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static const struct luaL_reg timer_methods[] =
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{
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LUA_CLASS_METHODS(timer)
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{ "__call", luaA_timer_new },
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{ NULL, NULL }
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};
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static const struct luaL_reg timer_meta[] =
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{
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LUA_OBJECT_META(timer)
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LUA_CLASS_META
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{ "start", luaA_timer_start },
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{ "stop", luaA_timer_stop },
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{ "__gc", luaA_object_gc },
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{ NULL, NULL },
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};
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luaA_class_setup(L, &timer_class, "timer", (lua_class_allocator_t) timer_new,
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timer_methods, timer_meta);
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luaA_class_add_property(&timer_class, A_TK_TIMEOUT,
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(lua_class_propfunc_t) luaA_timer_set_timeout,
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(lua_class_propfunc_t) luaA_timer_get_timeout,
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(lua_class_propfunc_t) luaA_timer_set_timeout);
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luaA_class_add_property(&timer_class, A_TK_STARTED,
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NULL,
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(lua_class_propfunc_t) luaA_timer_get_started,
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NULL);
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}
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// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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