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degesch: export timers to Lua

This commit is contained in:
Přemysl Eric Janouch 2015-11-21 19:48:15 +01:00
parent 364eb009ca
commit 02c7c6dcd6
1 changed files with 54 additions and 1 deletions
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55
degesch.c
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@ -7458,6 +7458,7 @@ enum lua_hook_type
XLUA_HOOK_DEFUNCT, ///< No longer functional XLUA_HOOK_DEFUNCT, ///< No longer functional
XLUA_HOOK_INPUT, ///< Input hook XLUA_HOOK_INPUT, ///< Input hook
XLUA_HOOK_IRC, ///< IRC hook XLUA_HOOK_IRC, ///< IRC hook
XLUA_HOOK_TIMER, ///< One-shot timer
}; };
struct lua_hook struct lua_hook
@ -7466,9 +7467,11 @@ struct lua_hook
enum lua_hook_type type; ///< Type of the hook enum lua_hook_type type; ///< Type of the hook
union union
{ {
struct hook hook; ///< Base structure struct hook hook; ///< Hook base structure
struct input_hook input_hook; ///< Input hook struct input_hook input_hook; ///< Input hook
struct irc_hook irc_hook; ///< IRC hook struct irc_hook irc_hook; ///< IRC hook
struct poller_timer timer; ///< Timer
} }
data; ///< Hook data data; ///< Hook data
}; };
@ -7485,6 +7488,9 @@ lua_hook_unhook (lua_State *L)
case XLUA_HOOK_IRC: case XLUA_HOOK_IRC:
LIST_UNLINK (hook->plugin->ctx->irc_hooks, &hook->data.hook); LIST_UNLINK (hook->plugin->ctx->irc_hooks, &hook->data.hook);
break; break;
case XLUA_HOOK_TIMER:
poller_timer_reset (&hook->data.timer);
break;
default: default:
hard_assert (!"invalid hook type"); hard_assert (!"invalid hook type");
case XLUA_HOOK_DEFUNCT: case XLUA_HOOK_DEFUNCT:
@ -7644,6 +7650,31 @@ struct irc_hook_vtable lua_irc_hook_vtable =
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
static void
lua_timer_hook_dispatch (void *user_data)
{
struct lua_hook *hook = user_data;
struct lua_plugin *plugin = hook->plugin;
lua_State *L = plugin->L;
lua_pushcfunction (L, lua_plugin_error_handler);
lua_rawgetp (L, LUA_REGISTRYINDEX, hook); // 1: hook
lua_getuservalue (L, -1); // Retrieve function
lua_insert (L, -2); // Swap with the hook
if (lua_pcall (L, 1, 0, -3))
{
struct error *e = NULL;
(void) lua_plugin_process_error (plugin, lua_tostring (L, -1), &e);
log_global_error (plugin->ctx, "Lua: plugin \"#s\": #s: #s",
plugin->super.name, "timer hook", e->message);
error_free (e);
}
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
static struct lua_hook * static struct lua_hook *
lua_plugin_push_hook (struct lua_plugin *plugin, int callback_index, lua_plugin_push_hook (struct lua_plugin *plugin, int callback_index,
enum lua_hook_type type, int priority) enum lua_hook_type type, int priority)
@ -7691,10 +7722,32 @@ lua_plugin_hook_irc (lua_State *L)
return 1; return 1;
} }
static int
lua_plugin_hook_timer (lua_State *L)
{
struct lua_plugin *plugin = lua_touserdata (L, lua_upvalueindex (1));
lua_Integer timeout = luaL_checkinteger (L, 2);
if (timeout < 0)
luaL_argerror (L, 2, "timeout mustn't be negative");
// This doesn't really hook anything but we can reuse the code
struct lua_hook *hook = lua_plugin_push_hook
(plugin, 1, XLUA_HOOK_TIMER, 0 /* priority doesn't apply */);
struct poller_timer *timer = &hook->data.timer;
poller_timer_init (timer, &plugin->ctx->poller);
timer->dispatcher = lua_timer_hook_dispatch;
timer->user_data = hook;
poller_timer_set (timer, timeout);
return 1;
}
static luaL_Reg lua_plugin_library[] = static luaL_Reg lua_plugin_library[] =
{ {
{ "hook_input", lua_plugin_hook_input }, { "hook_input", lua_plugin_hook_input },
{ "hook_irc", lua_plugin_hook_irc }, { "hook_irc", lua_plugin_hook_irc },
{ "hook_timer", lua_plugin_hook_timer },
{ NULL, NULL }, { NULL, NULL },
}; };