libmainloop/hooks.h

   1 /*
   2  * ion/mainloop/hooks.h
   3  *
   4  * Copyright (c) Tuomo Valkonen 1999-2009.
   5  *
   6  * See the included file LICENSE for details.
   7  */
   8
   9 #ifndef ION_LIBMAINLOOP_HOOKS_H
  10 #define ION_LIBMAINLOOP_HOOKS_H
  11
  12 #include <libtu/types.h>
  13 #include <libextl/extl.h>
  14
  15 INTRSTRUCT(WHookItem);
  16 INTRCLASS(WHook);
  17
  18 typedef void WHookDummy();
  19 typedef bool WHookMarshall(WHookDummy *fn, void *param);
  20 typedef bool WHookMarshallExtl(ExtlFn fn, void *param);
  21
  22 DECLSTRUCT(WHookItem){
  23     WHookDummy *fn;
  24     ExtlFn efn;
  25     WHookItem *next, *prev;
  26 };
  27
  28 DECLCLASS(WHook){
  29     Obj obj;
  30     WHookItem *items;
  31 };
  32
  33
  34 /* If hk==NULL to register, new is attempted to be created. */
  35 extern WHook *mainloop_register_hook(const char *name, WHook *hk);
  36 extern WHook *mainloop_unregister_hook(const char *name, WHook *hk);
  37 extern WHook *mainloop_get_hook(const char *name);
  38
  39 extern WHook *create_hook();
  40 extern bool hook_init(WHook *hk);
  41 extern void hook_deinit(WHook *hk);
  42
  43 extern bool hook_add(WHook *hk, WHookDummy *fn);
  44 extern bool hook_remove(WHook *hk, WHookDummy *fn);
  45 extern WHookItem *hook_find(WHook *hk, WHookDummy *fn);
  46
  47 extern bool hook_add_extl(WHook *hk, ExtlFn fn);
  48 extern bool hook_remove_extl(WHook *hk, ExtlFn fn);
  49 extern WHookItem *hook_find_extl(WHook *hk, ExtlFn efn);
  50
  51 extern void hook_call(const WHook *hk, void *p,
  52                       WHookMarshall *m, WHookMarshallExtl *em);
  53 extern void hook_call_v(const WHook *hk);
  54 extern void hook_call_o(const WHook *hk, Obj *o);
  55 extern void hook_call_p(const WHook *hk, void *p, WHookMarshallExtl *em);
  56
  57 extern bool hook_call_alt(const WHook *hk, void *p,
  58                           WHookMarshall *m, WHookMarshallExtl *em);
  59 extern bool hook_call_alt_v(const WHook *hk);
  60 extern bool hook_call_alt_o(const WHook *hk, Obj *o);
  61 extern bool hook_call_alt_p(const WHook *hk, void *p, WHookMarshallExtl *em);
  62
  63
  64 #endif /* ION_LIBMAINLOOP_HOOKS_H */