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Diffstat (limited to 'src/basic/refcnt.h')
| -rw-r--r-- | src/basic/refcnt.h | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/src/basic/refcnt.h b/src/basic/refcnt.h deleted file mode 100644 index 1d77a6445a..0000000000 --- a/src/basic/refcnt.h +++ /dev/null @@ -1,34 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2013 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -/* A type-safe atomic refcounter. - * - * DO NOT USE THIS UNLESS YOU ACTUALLY CARE ABOUT THREAD SAFETY! */ - -typedef struct { - volatile unsigned _value; -} RefCount; - -#define REFCNT_GET(r) ((r)._value) -#define REFCNT_INC(r) (__sync_add_and_fetch(&(r)._value, 1)) -#define REFCNT_DEC(r) (__sync_sub_and_fetch(&(r)._value, 1)) - -#define REFCNT_INIT ((RefCount) { ._value = 1 }) |