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// Copyright (c) 2014-2019, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. 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.
//
// 3. Neither the name of the copyright holder 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 HOLDER OR CONTRIBUTORS 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.
#pragma once
#include "misc_log_ex.h"
#include <iostream>
#ifdef HAVE_READLINE
#include "readline_buffer.h"
#define PAUSE_READLINE() \
rdln::suspend_readline pause_readline;
#else
#define PAUSE_READLINE()
#endif
namespace tools
{
/************************************************************************/
/* */
/************************************************************************/
class scoped_message_writer
{
private:
bool m_flush;
std::stringstream m_oss;
epee::console_colors m_color;
bool m_bright;
el::Level m_log_level;
public:
scoped_message_writer(
epee::console_colors color = epee::console_color_default
, bool bright = false
, std::string&& prefix = std::string()
, el::Level log_level = el::Level::Info
)
: m_flush(true)
, m_color(color)
, m_bright(bright)
, m_log_level(log_level)
{
m_oss << prefix;
}
scoped_message_writer(scoped_message_writer&& rhs)
: m_flush(std::move(rhs.m_flush))
#if defined(_MSC_VER)
, m_oss(std::move(rhs.m_oss))
#else
// GCC bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54316
, m_oss(rhs.m_oss.str(), std::ios_base::out | std::ios_base::ate)
#endif
, m_color(std::move(rhs.m_color))
, m_log_level(std::move(rhs.m_log_level))
{
rhs.m_flush = false;
}
scoped_message_writer(scoped_message_writer& rhs) = delete;
scoped_message_writer& operator=(scoped_message_writer& rhs) = delete;
scoped_message_writer& operator=(scoped_message_writer&& rhs) = delete;
template<typename T>
std::ostream& operator<<(const T& val)
{
m_oss << val;
return m_oss;
}
~scoped_message_writer()
{
if (m_flush)
{
m_flush = false;
MCLOG_FILE(m_log_level, "msgwriter", m_oss.str());
PAUSE_READLINE();
if (epee::console_color_default == m_color)
{
std::cout << m_oss.str();
}
else
{
set_console_color(m_color, m_bright);
std::cout << m_oss.str();
epee::reset_console_color();
}
std::cout << std::endl;
}
}
};
inline scoped_message_writer success_msg_writer(bool color = true)
{
return scoped_message_writer(color ? epee::console_color_green : epee::console_color_default, false, std::string(), el::Level::Info);
}
inline scoped_message_writer msg_writer(epee::console_colors color = epee::console_color_default)
{
return scoped_message_writer(color, false, std::string(), el::Level::Info);
}
inline scoped_message_writer fail_msg_writer()
{
return scoped_message_writer(epee::console_color_red, true, "Error: ", el::Level::Error);
}
} // namespace tools
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