log.cpp

#include "log.h"

namespace quic {

std::ostream& operator<<(std::ostream& o, const buffer_printer& bp) {
    auto& b = bp.buf;
    auto oldfill = o.fill();
    o.fill('0');
    o << "Buffer[" << b.size() << "/0x" << std::hex << b.size() << " bytes]:";
    for (size_t i = 0; i < b.size(); i += 32) {
        o << "\n" << std::setw(4) << i << " ";

        size_t stop = std::min(b.size(), i+32);
        for (size_t j = 0; j < 32; j++) {
            auto k = i + j;
            if (j % 4 == 0) o << ' ';
            if (k >= stop) o << "  ";
            else o << std::setw(2) << std::to_integer<uint_fast16_t>(b[k]);
        }
        o << u8"  ┃";
        for (size_t j = i; j < stop; j++) {
            auto c = std::to_integer<char>(b[j]);
            if (c == 0x00) o << u8"∅";
            else if (c < 0x20 || c > 0x7e) o << u8"·";
            else o << c;
        }
        o << u8"┃";
    }
    o << std::dec;
    return o;
}

}