Function PrintIOBuf

src/butil/binary_printer.cpp:98–117

template <typename Appender>
static void PrintIOBuf(Appender* appender, const IOBuf& b, size_t max_length) {
    BinaryCharPrinter<Appender> printer(appender);
    const size_t n = b.backing_block_num();
    size_t nw = 0;
    for (size_t i = 0; i < n; ++i) {
        StringPiece blk = b.backing_block(i);
        for (size_t j = 0; j < blk.size(); ++j) {
            if (nw >= max_length) {
                printer.Flush();
                char buf[48];
                int len = snprintf(buf, sizeof(buf), "...<skipping %" PRIu64 " bytes>",
                        (uint64_t)(b.size() - nw));
                appender->Append(buf, len);
                return;
            }
            ++nw;
            printer.PushChar(blk[j]);
        }
    }
}

template <typename Appender>
static void PrintString(Appender* appender, const StringPiece& s, size_t max_length) {