Method insert

net/http/headers.cpp:79–97

}

int HeadersBase::insert(std::string_view key, std::string_view value, int allow_dup) {
    if (!allow_dup) {
        auto it = find(key);
        if (it != end()) return -EEXIST;
    }
    uint64_t vbegin = m_buf_size + key.size() + 2;
    uint64_t new_size = vbegin + value.size() + 2;
    if (new_size + (m_kv_size + 1) * sizeof(KV) > m_buf_capacity)
        LOG_ERROR_RETURN(ENOBUFS, -1, "no buffer");
    auto ptr = m_buf + m_buf_size;
    buf_append(ptr, key);
    buf_append(ptr, ": ");
    buf_append(ptr, value);
    buf_append(ptr, "\r\n");
    m_last_kv = kv_add_sort({{m_buf_size, (uint16_t)key.size()},
            {(uint16_t)vbegin, (uint16_t)value.size()}}) - kv_begin();
    m_buf_size = (uint16_t)new_size;
    return 0;
}

bool HeadersBase::value_append(std::string_view value) {
    if (m_last_kv >= m_kv_size) return false;