107 lines
2.7 KiB
C++
107 lines
2.7 KiB
C++
// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
|
|
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
|
|
#pragma once
|
|
|
|
#include <chrono>
|
|
#include <type_traits>
|
|
#include <spdlog/fmt/fmt.h>
|
|
#include <spdlog/common.h>
|
|
|
|
// Some fmt helpers to efficiently format and pad ints and strings
|
|
namespace spdlog {
|
|
namespace details {
|
|
namespace fmt_helper {
|
|
|
|
inline spdlog::string_view_t to_string_view(const memory_buf_t &buf) SPDLOG_NOEXCEPT
|
|
{
|
|
return spdlog::string_view_t{buf.data(), buf.size()};
|
|
}
|
|
|
|
inline void append_string_view(spdlog::string_view_t view, memory_buf_t &dest)
|
|
{
|
|
auto *buf_ptr = view.data();
|
|
dest.append(buf_ptr, buf_ptr + view.size());
|
|
}
|
|
|
|
template<typename T>
|
|
inline void append_int(T n, memory_buf_t &dest)
|
|
{
|
|
fmt::format_int i(n);
|
|
dest.append(i.data(), i.data() + i.size());
|
|
}
|
|
|
|
template<typename T>
|
|
inline unsigned int count_digits(T n)
|
|
{
|
|
using count_type = typename std::conditional<(sizeof(T) > sizeof(uint32_t)), uint64_t, uint32_t>::type;
|
|
return static_cast<unsigned int>(fmt::internal::count_digits(static_cast<count_type>(n)));
|
|
}
|
|
|
|
inline void pad2(int n, memory_buf_t &dest)
|
|
{
|
|
if (n > 99)
|
|
{
|
|
append_int(n, dest);
|
|
}
|
|
else if (n > 9) // 10-99
|
|
{
|
|
dest.push_back(static_cast<char>('0' + n / 10));
|
|
dest.push_back(static_cast<char>('0' + n % 10));
|
|
}
|
|
else if (n >= 0) // 0-9
|
|
{
|
|
dest.push_back('0');
|
|
dest.push_back(static_cast<char>('0' + n));
|
|
}
|
|
else // negatives (unlikely, but just in case, let fmt deal with it)
|
|
{
|
|
fmt::format_to(dest, "{:02}", n);
|
|
}
|
|
}
|
|
|
|
template<typename T>
|
|
inline void pad_uint(T n, unsigned int width, memory_buf_t &dest)
|
|
{
|
|
static_assert(std::is_unsigned<T>::value, "pad_uint must get unsigned T");
|
|
for(auto digits = count_digits(n); digits < width; digits++)
|
|
{
|
|
dest.push_back('0');
|
|
}
|
|
append_int(n, dest);
|
|
}
|
|
|
|
template<typename T>
|
|
inline void pad3(T n, memory_buf_t &dest)
|
|
{
|
|
pad_uint(n, 3, dest);
|
|
}
|
|
|
|
template<typename T>
|
|
inline void pad6(T n, memory_buf_t &dest)
|
|
{
|
|
pad_uint(n, 6, dest);
|
|
}
|
|
|
|
template<typename T>
|
|
inline void pad9(T n, memory_buf_t &dest)
|
|
{
|
|
pad_uint(n, 9, dest);
|
|
}
|
|
|
|
// return fraction of a second of the given time_point.
|
|
// e.g.
|
|
// fraction<std::milliseconds>(tp) -> will return the millis part of the second
|
|
template<typename ToDuration>
|
|
inline ToDuration time_fraction(log_clock::time_point tp)
|
|
{
|
|
using std::chrono::duration_cast;
|
|
using std::chrono::seconds;
|
|
auto duration = tp.time_since_epoch();
|
|
auto secs = duration_cast<seconds>(duration);
|
|
return duration_cast<ToDuration>(duration) - duration_cast<ToDuration>(secs);
|
|
}
|
|
|
|
} // namespace fmt_helper
|
|
} // namespace details
|
|
} // namespace spdlog
|