wownero/src/common/scoped_message_writer.h

96 lines
2.2 KiB
C
Raw Normal View History

#pragma once
#include "misc_log_ex.h"
#include <iostream>
namespace tools
{
class scoped_message_writer
{
private:
bool m_flush;
std::stringstream m_oss;
epee::log_space::console_colors m_color;
bool m_bright;
int m_log_level;
public:
scoped_message_writer(
epee::log_space::console_colors color = epee::log_space::console_color_default
, bool bright = false
, std::string&& prefix = std::string()
, int log_level = LOG_LEVEL_2
)
: 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: http://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;
LOG_PRINT(m_oss.str(), m_log_level)
if (epee::log_space::console_color_default == m_color)
{
std::cout << m_oss.str();
}
else
{
epee::log_space::set_console_color(m_color, m_bright);
std::cout << m_oss.str();
epee::log_space::reset_console_color();
}
std::cout << std::endl;
}
}
};
inline scoped_message_writer success_msg_writer()
{
return scoped_message_writer(epee::log_space::console_color_green, false, std::string(), LOG_LEVEL_2);
}
inline scoped_message_writer msg_writer(epee::log_space::console_colors color = epee::log_space::console_color_default)
{
return scoped_message_writer(color, false, std::string(), LOG_LEVEL_2);
}
inline scoped_message_writer fail_msg_writer()
{
return scoped_message_writer(epee::log_space::console_color_red, true, "Error: ", LOG_LEVEL_0);
}
} // namespace tools