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verbose_output.hpp
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#ifndef OSMIUM_UTIL_VERBOSE_OUTPUT_HPP
#define OSMIUM_UTIL_VERBOSE_OUTPUT_HPP
/*
This file is part of Osmium (https://osmcode.org/libosmium).
Copyright 2013-2025 Jochen Topf <jochen@topf.org> and others (see README).
Boost Software License - Version 1.0 - August 17th, 2003
Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:
The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
*/
#include <ctime>
#include <iomanip>
#include <iostream>
#include <sstream>
#include <string>
namespace osmium {
inline namespace util {
class VerboseOutput {
std::time_t m_start;
bool m_verbose;
bool m_newline = true;
void start_line() {
if (m_newline) {
const std::time_t elapsed = runtime();
const char old_fill = std::cerr.fill();
std::cerr << '[' << std::setw(2) << (elapsed / 60) << ':' << std::setw(2) << std::setfill('0') << (elapsed % 60) << "] ";
std::cerr.fill(old_fill);
m_newline = false;
}
}
public:
explicit VerboseOutput(bool verbose = false) noexcept :
m_start(std::time(nullptr)),
m_verbose(verbose) {
}
std::time_t runtime() const noexcept {
return std::time(nullptr) - m_start;
}
bool verbose() const noexcept {
return m_verbose;
}
void verbose(bool verbose) noexcept {
m_verbose = verbose;
}
template <typename T>
void print(const T& value) {
if (m_verbose) {
start_line();
std::cerr << value;
// check if there was a newline a the end and remember that
std::ostringstream output_buffer;
output_buffer << value;
if (!output_buffer.str().empty() && output_buffer.str().back() == '\n') {
m_newline = true;
}
}
}
}; // class VerboseOutput
template <typename T>
inline VerboseOutput& operator<<(VerboseOutput& verbose_output, const T& value) {
verbose_output.print(value);
return verbose_output;
}
} // namespace util
} // namespace osmium
#endif // OSMIUM_UTIL_VERBOSE_OUTPUT_HPP
osmium::util::VerboseOutput
Definition verbose_output.hpp:61
osmium::util::VerboseOutput::start_line
void start_line()
Definition verbose_output.hpp:76
osmium::util::VerboseOutput::m_start
std::time_t m_start
all time output will be relative to this start time
Definition verbose_output.hpp:64
osmium::util::VerboseOutput::runtime
std::time_t runtime() const noexcept
Definition verbose_output.hpp:95
osmium::util::VerboseOutput::print
void print(const T &value)
Definition verbose_output.hpp:110
osmium::util::VerboseOutput::m_newline
bool m_newline
a newline was written, start next output with runtime
Definition verbose_output.hpp:70
osmium::util::VerboseOutput::verbose
void verbose(bool verbose) noexcept
Set "verbose" setting.
Definition verbose_output.hpp:105
osmium::util::VerboseOutput::verbose
bool verbose() const noexcept
Get "verbose" setting.
Definition verbose_output.hpp:100
osmium::util::VerboseOutput::m_verbose
bool m_verbose
is verbose mode enabled?
Definition verbose_output.hpp:67
osmium::util::VerboseOutput::VerboseOutput
VerboseOutput(bool verbose=false) noexcept
Definition verbose_output.hpp:90
osmium::util::operator<<
VerboseOutput & operator<<(VerboseOutput &verbose_output, const T &value)
Definition verbose_output.hpp:127
osmium
Namespace for everything in the Osmium library.
Definition assembler.hpp:53
std
Definition location.hpp:555