Commit 80ca7c70 authored by Rémi Duraffort's avatar Rémi Duraffort

lua: implement timers in vlc.misc

parent 86ac0d4e
......@@ -6,6 +6,7 @@
*
* Authors: Antoine Cellerier <dionoea at videolan tod org>
* Pierre d'Herbemont <pdherbemont # videolan.org>
* Rémi Duraffort <ivoire # videolan tod org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
......@@ -243,6 +244,91 @@ static int vlclua_action_id( lua_State *L )
return 1;
}
/*****************************************************************************
* Timer functions
*****************************************************************************/
static int vlclua_timer_schedule( lua_State *L );
static const luaL_Reg vlclua_timer_reg[] = {
{ "schedule", vlclua_timer_schedule },
{ NULL, NULL }
};
typedef struct
{
lua_State *L;
vlc_timer_t timer;
char *psz_callback;
} vlclua_timer_t;
static int vlclua_timer_schedule( lua_State *L )
{
vlclua_timer_t **pp_timer = (vlclua_timer_t**)luaL_checkudata( L, 1, "timer" );
if( !pp_timer || !*pp_timer )
luaL_error( L, "Can't get pointer to timer" );
bool b_relative = luaL_checkboolean( L, 2 );
mtime_t i_value = luaL_checkinteger( L, 3 );
mtime_t i_interval = luaL_checkinteger( L, 4 );
vlc_timer_schedule( (*pp_timer)->timer, b_relative, i_value, i_interval );
return 0;
}
static void vlclua_timer_callback( void *data )
{
vlclua_timer_t *p_timer = (vlclua_timer_t*)data;
lua_State *L = p_timer->L;
lua_getglobal( L, p_timer->psz_callback );
if( lua_pcall( L, 0, 0, 0 ) )
{
const char *psz_err = lua_tostring( L, -1 );
fprintf( stderr, "Error while running the timer callback: %s\n", psz_err );
lua_settop( L, 0 );
}
}
static int vlclua_timer_delete( lua_State *L )
{
vlclua_timer_t **pp_timer = (vlclua_timer_t**)luaL_checkudata( L, 1, "timer" );
if( !pp_timer || !*pp_timer )
luaL_error( L, "Can't get pointer to timer" );
vlc_timer_destroy( (*pp_timer)->timer );
free( (*pp_timer)->psz_callback );
return 0;
}
static int vlclua_timer_create( lua_State *L )
{
vlclua_timer_t *p_timer = malloc( sizeof( vlclua_timer_t ) );
if( !lua_isstring( L, 1 ) )
return luaL_error( L, "timer(function_name)" );
if( vlc_timer_create( &p_timer->timer, vlclua_timer_callback, p_timer ) )
return luaL_error( L, "Cannot initialize the timer" );
p_timer->L = L;
p_timer->psz_callback = strdup( luaL_checkstring( L, 1 ) );
vlclua_timer_t **pp_timer = lua_newuserdata( L, sizeof( vlclua_timer_t* ) );
*pp_timer = p_timer;
/* Create the object */
if( luaL_newmetatable( L, "timer" ) )
{
lua_newtable( L );
luaL_register( L, NULL, vlclua_timer_reg );
lua_setfield( L, -2, "__index" );
lua_pushcfunction( L, vlclua_timer_delete );
lua_setfield( L, -2, "__gc" );
}
lua_setmetatable( L, -2 );
return 1;
}
/*****************************************************************************
*
*****************************************************************************/
......@@ -268,6 +354,8 @@ static const luaL_Reg vlclua_misc_reg[] = {
{ "should_die", vlclua_intf_should_die },
{ "quit", vlclua_quit },
{ "timer", vlclua_timer_create },
{ NULL, NULL }
};
......
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