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135 lines
4.2 KiB
C++
135 lines
4.2 KiB
C++
// Copyright (c) 2014-2018, 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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#pragma once
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#include "misc_log_ex.h"
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#include <iostream>
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#ifdef HAVE_READLINE
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#include "readline_buffer.h"
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#define PAUSE_READLINE() \
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rdln::suspend_readline pause_readline;
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#else
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#define PAUSE_READLINE()
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#endif
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namespace tools
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{
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/************************************************************************/
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/* */
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/************************************************************************/
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class scoped_message_writer
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{
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private:
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bool m_flush;
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std::stringstream m_oss;
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epee::console_colors m_color;
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bool m_bright;
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el::Level m_log_level;
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public:
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scoped_message_writer(
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epee::console_colors color = epee::console_color_default
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, bool bright = false
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, std::string&& prefix = std::string()
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, el::Level log_level = el::Level::Info
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)
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: m_flush(true)
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, m_color(color)
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, m_bright(bright)
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, m_log_level(log_level)
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{
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m_oss << prefix;
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}
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scoped_message_writer(scoped_message_writer&& rhs)
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: m_flush(std::move(rhs.m_flush))
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#if defined(_MSC_VER)
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, m_oss(std::move(rhs.m_oss))
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#else
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// GCC bug: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54316
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, m_oss(rhs.m_oss.str(), std::ios_base::out | std::ios_base::ate)
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#endif
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, m_color(std::move(rhs.m_color))
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, m_log_level(std::move(rhs.m_log_level))
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{
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rhs.m_flush = false;
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}
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scoped_message_writer(scoped_message_writer& rhs) = delete;
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scoped_message_writer& operator=(scoped_message_writer& rhs) = delete;
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scoped_message_writer& operator=(scoped_message_writer&& rhs) = delete;
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template<typename T>
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std::ostream& operator<<(const T& val)
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{
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m_oss << val;
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return m_oss;
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}
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~scoped_message_writer()
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{
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if (m_flush)
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{
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m_flush = false;
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MCLOG_FILE(m_log_level, "msgwriter", m_oss.str());
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if (epee::console_color_default == m_color)
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{
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std::cout << m_oss.str();
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}
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else
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{
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PAUSE_READLINE();
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set_console_color(m_color, m_bright);
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std::cout << m_oss.str();
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epee::reset_console_color();
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}
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std::cout << std::endl;
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}
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}
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};
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inline scoped_message_writer success_msg_writer(bool color = true)
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{
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return scoped_message_writer(color ? epee::console_color_green : epee::console_color_default, false, std::string(), el::Level::Info);
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}
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inline scoped_message_writer msg_writer(epee::console_colors color = epee::console_color_default)
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{
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return scoped_message_writer(color, false, std::string(), el::Level::Info);
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}
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inline scoped_message_writer fail_msg_writer()
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{
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return scoped_message_writer(epee::console_color_red, true, "Error: ", el::Level::Error);
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}
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} // namespace tools
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