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galago-signals.h

00001 
00021 #ifndef _GALAGO_SIGNALS_H_
00022 #define _GALAGO_SIGNALS_H_
00023 
00024 typedef struct _GalagoSignalHandler GalagoSignalHandler;
00025 typedef struct _GalagoSignalContext GalagoSignalContext;
00026 
00027 #include <libgalago/galago-object.h>
00028 #include <libgalago/galago-value.h>
00029 
00030 typedef void (*GalagoMarshalFunc)(GalagoCallback cb, GalagoObject *obj,
00031                                   const char *signal, va_list args,
00032                                   void *data);
00033 
00034 #define GALAGO_SIGNAL_CONTEXT(obj) \
00035     (galago_class_get_signal_context(GALAGO_OBJECT_CLASS(obj)))
00036 
00037 #include <libgalago/galago-hashtable.h>
00038 #include <libgalago/galago-types.h>
00039 
00040 #ifdef __cplusplus
00041 extern "C" {
00042 #endif
00043 
00044 /**************************************************************************/
00046 /**************************************************************************/
00054 GalagoSignalContext *galago_signal_context_new(void);
00055 
00061 void galago_signal_context_destroy(GalagoSignalContext *signal_context);
00062 
00068 void galago_signal_context_freeze(GalagoSignalContext *signal_context);
00069 
00075 void galago_signal_context_thaw(GalagoSignalContext *signal_context);
00076 
00084 galago_bool galago_signal_context_is_frozen(
00085     const GalagoSignalContext *signal_context);
00086 
00097 GalagoSignalHandler *galago_signal_context_find_handler(
00098     const GalagoSignalContext *signal_context, const void *object,
00099     const char *signal, GalagoCallback cb);
00100 
00108 GalagoSignalHandler *galago_signal_context_find_handler_with_id(
00109     unsigned long id);
00110 
00113 /**************************************************************************/
00115 /**************************************************************************/
00130 galago_bool galago_signal_register(GalagoSignalContext *signal_context,
00131                                    const char *signal,
00132                                    GalagoMarshalFunc marshal,
00133                                    size_t num_values, ...);
00134 
00141 void galago_signal_unregister(GalagoSignalContext *signal_context,
00142                               const char *signal);
00143 
00154 unsigned long galago_signal_connect_class(GalagoObjectClass *klass,
00155                                           const char *signal,
00156                                           GalagoCallback cb, void *user_data);
00157 
00168 unsigned long galago_signal_connect(void *obj, const char *signal,
00169                                     GalagoCallback cb, void *user_data);
00170 
00176 void galago_signals_disconnect_by_id(unsigned long id);
00177 
00185 void galago_signal_emit(void *object, const char *signal, ...);
00186 
00194 void galago_signal_emit_vargs(void *object, const char *signal, va_list args);
00195 
00199 void galago_signals_init(void);
00200 
00204 void galago_signals_uninit(void);
00205 
00208 #ifdef __cplusplus
00209 }
00210 #endif
00211 
00212 #endif /* _GALAGO_SIGNALS_H_ */