src/server/util/atomic.h@6a145e13d933
src/server/util/atomic.h
Sat, 13 Jan 2018 18:48:19 +0100
- author
- Olaf Wintermann <olaf.wintermann@gmail.com>
- date
- Sat, 13 Jan 2018 18:48:19 +0100
- branch
- aio
- changeset 192
- 6a145e13d933
- parent 109
- 8a0a7754f123
- child 161
- aadda87bad1b
- permissions
- -rw-r--r--
replaces eventfd with pipe and closes aio branch
/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright 2013 Olaf Wintermann. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. 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 HOLDER 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 ATOMIC_H #define ATOMIC_H #ifdef __cplusplus extern "C" { #endif #ifdef __gnu_linux__ #define ws_atomic_inc32(intptr) __sync_fetch_and_add(intptr, 1) #define ws_atomic_dec32(intptr) __sync_fetch_and_sub(intptr, 1) #define ws_atomic_add32(intptr, val) __sync_fetch_and_add(intptr, val) #define ws_atomic_sub32(intptr, val) __sync_fetch_and_sub(intptr, val) #elif defined(OSX) #include <libkern/OSAtomic.h> #define ws_atomic_inc32(intptr) OSAtomicIncrement32((volatile int32_t *)intptr) #define ws_atomic_dec32(intptr) OSAtomicDecrement32((volatile int32_t *)intptr) #elif defined(BSD) #define ws_atomic_inc32(intptr) __sync_fetch_and_add(intptr, 1) #define ws_atomic_dec32(intptr) __sync_fetch_and_sub(intptr, 1) #define ws_atomic_add32(intptr, val) __sync_fetch_and_add(intptr, val) #define ws_atomic_sub32(intptr, val) __sync_fetch_and_sub(intptr, va #else // use atomic.h #include <atomic.h> #define ws_atomic_inc32(intptr) atomic_inc_32_nv(intptr) #define ws_atomic_dec32(intptr) atomic_dec_32_nv(intptr) // TODO #endif #ifdef __cplusplus } #endif #endif /* ATOMIC_H */
