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88 lines
3.4 KiB
88 lines
3.4 KiB
// Copyright (c) 2014, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2006-2013, Andrey N. Sabelnikov
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#ifndef _REG_EXP_DEFINER_H_
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#define _REG_EXP_DEFINER_H_
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#include <boost/interprocess/detail/atomic.hpp>
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namespace epee
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{
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class global_regexp_critical_section
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{
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private:
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mutable critical_section regexp_lock;
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public:
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global_regexp_critical_section(){}
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critical_section& get_lock()const {return regexp_lock;}
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};
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const static global_regexp_critical_section gregexplock;
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#define STATIC_REGEXP_EXPR_1(var_name, xpr_text, reg_exp_flags) \
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static volatile uint32_t regexp_initialized_1 = 0;\
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volatile uint32_t local_is_initialized_1 = regexp_initialized_1;\
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if(!local_is_initialized_1)\
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gregexplock.get_lock().lock();\
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static const boost::regex var_name(xpr_text , reg_exp_flags);\
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if(!local_is_initialized_1)\
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{\
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boost::interprocess::ipcdetail::atomic_write32(®exp_initialized_1, 1);\
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gregexplock.get_lock().unlock();\
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}
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#define STATIC_REGEXP_EXPR_2(var_name, xpr_text, reg_exp_flags) \
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static volatile uint32_t regexp_initialized_2 = 0;\
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volatile uint32_t local_is_initialized_2 = regexp_initialized_2;\
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if(!local_is_initialized_2)\
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gregexplock.get_lock().lock().lock();\
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static const boost::regex var_name(xpr_text , reg_exp_flags);\
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if(!local_is_initialized_2)\
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{\
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boost::interprocess::ipcdetail::atomic_write32(®exp_initialized_2, 1);\
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gregexplock.get_lock().lock().unlock();\
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}
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#define STATIC_REGEXP_EXPR_3(var_name, xpr_text, reg_exp_flags) \
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static volatile uint32_t regexp_initialized_3 = 0;\
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volatile uint32_t local_is_initialized_3 = regexp_initialized_3;\
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if(!local_is_initialized_3)\
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gregexplock.get_lock().lock().lock();\
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static const boost::regex var_name(xpr_text , reg_exp_flags);\
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if(!local_is_initialized_3)\
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{\
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boost::interprocess::ipcdetail::atomic_write32(®exp_initialized_3, 1);\
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gregexplock.get_lock().lock().unlock();\
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}
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}
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#endif //_REG_EXP_DEFINER_H_
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