Function to_char_ptr_array

tools/server/server-models.cpp:478–486

helper to convert vector to char pointers are only valid as long as the original vector is valid

// helper to convert vector<string> to char **
// pointers are only valid as long as the original vector is valid
static std::vector<char *> to_char_ptr_array(const std::vector<std::string> & vec) {
    std::vector<char *> result;
    result.reserve(vec.size() + 1);
    for (const auto & s : vec) {
        result.push_back(const_cast<char*>(s.c_str()));
    }
    result.push_back(nullptr);
    return result;
}

std::vector<server_model_meta> server_models::get_all_meta() {
    std::lock_guard<std::mutex> lk(mutex);