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#include <lua.h> |
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#include <lauxlib.h> |
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#include <glib.h> |
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#include <loudmouth/loudmouth.h> |
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#include "lm_types.h" |
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#include "util.h" |
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/// lm.message_handler |
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/// Module, representing message handling functions. |
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/// message handler callback function |
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/// Callback function, used on incoming messages. |
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/// Should return true if message has been fully handled and no more |
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/// handlers should be called. |
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/// A: lm connection object, lm message object |
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/// R: boolean |
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LmHandlerResult llm_message_handler_callback (LmMessageHandler *handler, LmConnection *connection, LmMessage *message, llm_callback_t *cb) |
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{ |
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int ret; |
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lua_rawgeti (cb->L, LUA_REGISTRYINDEX, cb->reference); |
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llm_connection_bless (cb->L, connection); |
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// XXX lm_connection_unref (connection); |
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llm_message_bless (cb->L, message); |
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// XXX lm_message_unref (message); |
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if (lua_pcall (cb->L, 2, 1, 0)) { |
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// XXX lua_error (cb->L); |
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lua_pop (cb->L, 1); |
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return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS; |
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} |
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ret = lua_toboolean (cb->L, -1); |
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lua_pop (cb->L, 1); |
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if (ret) |
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return LM_HANDLER_RESULT_REMOVE_MESSAGE; |
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else |
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return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS; |
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} |
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/// lm.message_handler.new |
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/// Creates new message handler object. |
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/// A: message handler callback function |
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/// R: lm message handler object |
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static int llm_message_handler_new (lua_State *L) |
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{ |
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llm_callback_t *cb; |
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LmMessageHandler *handler; |
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luaL_argcheck (L, lua_isfunction (L, 1), 1, "function expected"); |
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cb = luaL_malloc (L, sizeof (llm_callback_t)); |
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cb->reference = luaL_ref (L, LUA_REGISTRYINDEX); |
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cb->L = L; |
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handler = lm_message_handler_new ((LmHandleMessageFunction)llm_message_handler_callback, |
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cb, (GDestroyNotify)llm_callback_destroy); |
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llm_message_handler_bless (L, handler); |
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lm_message_handler_unref (handler); // XXX |
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return 1; |
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} |
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/// lm.message_handler.bless |
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/// Blesses given pointer to lm message handler object. |
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/// A: lightuserdata (C lm message handler object) |
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/// R: lm message handler object |
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static int llm_message_handler_bless_lua (lua_State *L) |
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{ |
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luaL_argcheck (L, lua_islightuserdata (L, 1), 1, "loudmouth message handler pointer expected"); |
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llm_message_handler_bless (L, lua_touserdata (L, 1)); |
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lua_remove (L, -2); |
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return 1; |
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} |
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/// message_handler:invalidate |
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/// Invalidates handler. |
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static int llm_message_handler_invalidate (lua_State *L) |
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{ |
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llm_message_handler_t *object = luaL_checklm_message_handler (L, 1); |
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lm_message_handler_invalidate (object->message_handler); |
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lua_pop (L, 1); |
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return 0; |
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} |
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/// message_handler:valid |
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/// Returns true if message handler is still valid. |
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/// R: boolean |
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static int llm_message_handler_valid (lua_State *L) |
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{ |
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llm_message_handler_t *object = luaL_checklm_message_handler (L, 1); |
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lua_pushboolean (L, lm_message_handler_is_valid (object->message_handler)); |
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lua_remove (L, -2); |
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return 1; |
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} |
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/// message_handler:pointer |
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/// Returns pointer to underlying C loudmouth structure. |
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/// R: lightuserdata |
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static int llm_message_handler_pointer (lua_State *L) |
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{ |
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llm_message_handler_t *object = luaL_checklm_message_handler (L, 1); |
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lua_pushlightuserdata (L, object->message_handler); |
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lua_remove (L, -2); |
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return 1; |
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} |
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static int llm_message_handler_gc (lua_State *L) |
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{ |
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llm_message_handler_t *object = luaL_checklm_message_handler (L, 1); |
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lm_message_handler_unref (object->message_handler); |
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lua_pop (L, 1); |
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return 0; |
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} |
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static const luaL_Reg llm_message_handler_reg_f[] = { |
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{ "new", llm_message_handler_new }, |
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{ "bless", llm_message_handler_bless_lua }, |
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{ NULL, NULL }, |
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}; |
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static const luaL_Reg llm_message_handler_reg_m[] = { |
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{ "invalidate", llm_message_handler_invalidate }, |
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{ "valid", llm_message_handler_valid }, |
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{ "pointer", llm_message_handler_pointer }, |
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{ "__gc", llm_message_handler_gc }, |
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{ NULL, NULL }, |
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}; |
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int luaopen_lm_message_handler (lua_State *L) |
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{ |
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luaL_newmetatable (L, "loudmouth.message_handler"); |
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lua_pushstring (L, "__index"); |
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lua_pushvalue (L, -2); |
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lua_settable (L, -3); |
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luaL_register (L, NULL, llm_message_handler_reg_m); |
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lua_pop (L, 1); |
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luaL_register (L, "lm.message_handler", llm_message_handler_reg_f); |
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return 1; |
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} |
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