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

   1 #ifndef foopulserefcnthfoo
   2 #define foopulserefcnthfoo
   3
   4 /***
   5   This file is part of PulseAudio.
   6
   7   Copyright 2006 Lennart Poettering
   8
   9   PulseAudio is free software; you can redistribute it and/or modify
  10   it under the terms of the GNU Lesser General Public License as
  11   published by the Free Software Foundation; either version 2 of the
  12   License, or (at your option) any later version.
  13
  14   PulseAudio is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public
  20   License along with PulseAudio; if not, write to the Free Software
  21   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  22   USA.
  23 ***/
  24
  25 #include <pulsecore/atomic.h>
  26
  27 #define PA_REFCNT_DECLARE \
  28     pa_atomic_t _ref
  29
  30 #define PA_REFCNT_INIT(p) \
  31     pa_atomic_store(&(p)->_ref, 1)
  32
  33 #define PA_REFCNT_INIT_ZERO(p) \
  34     pa_atomic_store(&(p)->_ref, 0)
  35
  36 #define PA_REFCNT_INC(p) \
  37     pa_atomic_inc(&(p)->_ref)
  38
  39 #define PA_REFCNT_DEC(p) \
  40     (pa_atomic_dec(&(p)->_ref)-1)
  41
  42 #define PA_REFCNT_VALUE(p) \
  43     pa_atomic_load(&(p)->_ref)
  44
  45 #endif