OwlCyberSecurity - MANAGER

Edit File: spin_lock.hpp

/* * OXT - OS eXtensions for boosT * Provides important functionality necessary for writing robust server software. * * Copyright (c) 2010-2017 Phusion Holding B.V. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #ifndef _OXT_SPIN_LOCK_HPP_ #define _OXT_SPIN_LOCK_HPP_ #include "macros.hpp" // These operating systems don't support pthread spin locks: // - OpenBSD 4.3 (last checked: July 22, 2008) // - Solaris 9 (last checked: July 22, 2008) // - MacOS X (last checked: July 22, 2012) #if defined(__OpenBSD__) || defined(__SOLARIS9__) || defined(__APPLE__) #define OXT_NO_PTHREAD_SPINLOCKS #endif #if defined(__APPLE__) #include "detail/spin_lock_darwin.hpp" #elif (OXT_GCC_VERSION > 40100 && (defined(__i386__) || defined(__x86_64__))) || defined(IN_DOXYGEN) // GCC 4.0 doesn't support __sync instructions while GCC 4.2 // does. I'm not sure whether support for it started in 4.1 or // 4.2, so the above version check may have to be changed later. #include "detail/spin_lock_gcc_x86.hpp" #elif !defined(WIN32) && !defined(OXT_NO_PTHREAD_SPINLOCKS) #include "detail/spin_lock_pthreads.hpp" #else #include "detail/spin_lock_portable.hpp" #endif #endif /* _OXT_SPIN_LOCK_HPP_ */