code.delx.au - pulseaudio/blob - src/pulsecore/msgobject.h

   1 #ifndef foopulsemsgobjecthfoo
   2 #define foopulsemsgobjecthfoo
   3
   4 /***
   5   This file is part of PulseAudio.
   6
   7   Copyright 2004-2006 Lennart Poettering
   8   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
   9
  10   PulseAudio is free software; you can redistribute it and/or modify
  11   it under the terms of the GNU Lesser General Public License as published
  12   by the Free Software Foundation; either version 2.1 of the License,
  13   or (at your option) any later version.
  14
  15   PulseAudio is distributed in the hope that it will be useful, but
  16   WITHOUT ANY WARRANTY; without even the implied warranty of
  17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18   General Public License for more details.
  19
  20   You should have received a copy of the GNU Lesser General Public License
  21   along with PulseAudio; if not, write to the Free Software
  22   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  23   USA.
  24 ***/
  25
  26 #include <sys/types.h>
  27
  28 #include <pulse/xmalloc.h>
  29 #include <pulsecore/refcnt.h>
  30 #include <pulsecore/macro.h>
  31 #include <pulsecore/object.h>
  32 #include <pulsecore/memchunk.h>
  33
  34 typedef struct pa_msgobject pa_msgobject;
  35
  36 struct pa_msgobject {
  37     pa_object parent;
  38     int (*process_msg)(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk);
  39 };
  40
  41 pa_msgobject *pa_msgobject_new_internal(size_t size, const char *type_id, pa_bool_t (*check_type)(const char *type_name));
  42
  43 #define pa_msgobject_new(type) ((type*) pa_msgobject_new_internal(sizeof(type), type##_type_id, type##_check_type))
  44 #define pa_msgobject_free ((void (*) (pa_msgobject* o)) pa_object_free)
  45
  46 #define PA_MSGOBJECT(o) pa_msgobject_cast(o)
  47
  48 PA_DECLARE_PUBLIC_CLASS(pa_msgobject);
  49
  50 #endif