From 1b67fff3616416e7d634c20cc96703883352c504 Mon Sep 17 00:00:00 2001 From: Ethan Yonker Date: Tue, 27 Jan 2015 08:50:48 -0600 Subject: Use TWAtomicInt in MTPStorage Change-Id: I3450fd2334a441c3d9d40a856128a3cc932cb7f3 --- mtp/tw_sys_atomics.h | 67 ---------------------------------------------------- 1 file changed, 67 deletions(-) delete mode 100644 mtp/tw_sys_atomics.h (limited to 'mtp/tw_sys_atomics.h') diff --git a/mtp/tw_sys_atomics.h b/mtp/tw_sys_atomics.h deleted file mode 100644 index 6349a931d..000000000 --- a/mtp/tw_sys_atomics.h +++ /dev/null @@ -1,67 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ -#ifndef _TW_SYS_ATOMICS_H -#define _TW_SYS_ATOMICS_H - -#include -#include - -__BEGIN_DECLS - -/* Note: atomic operations that were exported by the C library didn't - * provide any memory barriers, which created potential issues on - * multi-core devices. We now define them as inlined calls to - * GCC sync builtins, which always provide a full barrier. - * - * NOTE: The C library still exports atomic functions by the same - * name to ensure ABI stability for existing NDK machine code. - * - * If you are an NDK developer, we encourage you to rebuild your - * unmodified sources against this header as soon as possible. - */ - -/* This was kanged from Android 4.4 bionic/libc/include/sys/atomics.h - * This header was removed in Android 5.0 in favor of stdatomics.h but - * to maintain compatibility across multiple trees, we are including our - * own copy. - */ - -#ifndef __ATOMIC_INLINE__ -#define __ATOMIC_INLINE__ static __inline__ __attribute__((always_inline)) -#endif - -__ATOMIC_INLINE__ int -__tw_atomic_cmpxchg(int old_value, int new_value, volatile int* ptr) -{ - /* We must return 0 on success */ - return __sync_val_compare_and_swap(ptr, old_value, new_value) != old_value; -} - -__END_DECLS - -#endif /* _TW_SYS_ATOMICS_H */ -- cgit v1.2.3