// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net // 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. // * Neither the name of the Andrey N. Sabelnikov nor the // names of its contributors may be used to endorse or promote products // derived from this software without specific prior written permission. // // 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 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 _REG_EXP_DEFINER_H_ #define _REG_EXP_DEFINER_H_ #include <atomic> #include <boost/regex.hpp> #include "syncobj.h" namespace epee { class global_regexp_critical_section { private: mutable critical_section regexp_lock; public: global_regexp_critical_section(){} critical_section& get_lock()const {return regexp_lock;} }; const static global_regexp_critical_section gregexplock; #define STATIC_REGEXP_EXPR_1(var_name, xpr_text, reg_exp_flags) \ static std::atomic<bool> regexp_initialized_1(false);\ volatile uint32_t local_is_initialized_1 = regexp_initialized_1;\ if(!local_is_initialized_1)\ gregexplock.get_lock().lock();\ static const boost::regex var_name(xpr_text , reg_exp_flags);\ if(!local_is_initialized_1)\ {\ regexp_initialized_1 = true;\ gregexplock.get_lock().unlock();\ } #define STATIC_REGEXP_EXPR_2(var_name, xpr_text, reg_exp_flags) \ static std::atomic<bool> regexp_initialized_2(false);\ volatile uint32_t local_is_initialized_2 = regexp_initialized_2;\ if(!local_is_initialized_2)\ gregexplock.get_lock().lock().lock();\ static const boost::regex var_name(xpr_text , reg_exp_flags);\ if(!local_is_initialized_2)\ {\ regexp_initialized_2 = true;\ gregexplock.get_lock().lock().unlock();\ } #define STATIC_REGEXP_EXPR_3(var_name, xpr_text, reg_exp_flags) \ static std::atomic<bool> regexp_initialized_3(false);\ volatile uint32_t local_is_initialized_3 = regexp_initialized_3;\ if(!local_is_initialized_3)\ gregexplock.get_lock().lock().lock();\ static const boost::regex var_name(xpr_text , reg_exp_flags);\ if(!local_is_initialized_3)\ {\ regexp_initialized_3 = true;\ gregexplock.get_lock().lock().unlock();\ } } #endif //_REG_EXP_DEFINER_H_