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 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_name, int (*check_type)(const char *type_name));
  42
  43 int pa_msgobject_check_type(const char *type);
  44
  45 #define pa_msgobject_new(type) ((type*) pa_msgobject_new_internal(sizeof(type), #type, type##_check_type))
  46 #define pa_msgobject_free ((void (*) (pa_msgobject* o)) pa_object_free)
  47
  48 #define PA_MSGOBJECT(o) pa_msgobject_cast(o)
  49
  50 PA_DECLARE_CLASS(pa_msgobject);
  51
  52 #endif