monero/contrib/epee/include/reg_exp_definer.h
Jeffrey 17772ef53e Eliminate dependence on boost::interprocess
In this repo, `boost::interprocess` was being used soley to make `uint32_t` operations atomic. So I replaced each instance of
`boost::interprocess::ipcdetail::atomic(...)32` with `std::atomic` methods. I replaced member declarations as applicable. For example,
when I needed to change a `volatile uint32_t` into a `std::atomic<uint32_t>`. Sometimes, a member was being used a boolean flag, so
I replaced it with `std::atomic<bool>`.

You may notice that I didn't touch `levin_client_async.h`. That is because this file is entirely unused and will be deleted in PR monero-project#8211.

Additional changes from review:
* Make some local variables const
* Change postfix operators to prefix operators where value was not need
2022-03-30 13:18:32 -05:00

86 lines
3.2 KiB
C++

// 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_