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 2.1 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, see <http://www.gnu.org/licenses/>. 21 ***/ 22 23 #include <pulsecore/atomic.h> 24 #include <pulsecore/macro.h> 25 #include <pulsecore/log.h> 26 27 /* #define DEBUG_REF */ 28 29 #define PA_REFCNT_DECLARE \ 30 pa_atomic_t _ref 31 32 #define PA_REFCNT_VALUE(p) \ 33 pa_atomic_load(&(p)->_ref) 34 35 #define PA_REFCNT_INIT_ZERO(p) \ 36 pa_atomic_store(&(p)->_ref, 0) 37 38 #ifndef DEBUG_REF 39 40 #define PA_REFCNT_INIT(p) \ 41 pa_atomic_store(&(p)->_ref, 1) 42 43 #define PA_REFCNT_INC(p) \ 44 pa_atomic_inc(&(p)->_ref) 45 46 #define PA_REFCNT_DEC(p) \ 47 (pa_atomic_dec(&(p)->_ref)-1) 48 49 #else 50 51 /* If you need to debug ref counting problems define DEBUG_REF and 52 * set $PULSE_LOG_BACKTRACE=5 or suchlike in the shell when running 53 * PA */ 54 55 #define PA_REFCNT_INIT(p) \ 56 do { \ 57 pa_atomic_store(&(p)->_ref, 1); \ 58 pa_log("REF: Init %p", p); \ 59 } while (false) 60 61 #define PA_REFCNT_INC(p) \ 62 do { \ 63 pa_atomic_inc(&(p)->_ref); \ 64 pa_log("REF: Inc %p", p); \ 65 } while (false) \ 66 67 #define PA_REFCNT_DEC(p) \ 68 ({ \ 69 int _j = (pa_atomic_dec(&(p)->_ref)-1); \ 70 if (_j <= 0) \ 71 pa_log("REF: Done %p", p); \ 72 else \ 73 pa_log("REF: Dec %p", p); \ 74 _j; \ 75 }) 76 77 #endif 78 79 #endif 80