Method set_error

src/butil/status.cpp:90–111

}

int Status::set_error(int c, const butil::StringPiece& error_msg) {
    if (0 == c) {
        free(_state);
        _state = NULL;
        return 0;
    }
    const size_t st_size = status_size(error_msg.size());
    if (_state == NULL || _state->state_size < st_size) {
        State* new_state = reinterpret_cast<State*>(malloc(st_size));
        if (NULL == new_state) {
            return -1;
        }
        new_state->state_size = st_size;
        free(_state);
        _state = new_state;
    }
    _state->code = c;
    _state->size = error_msg.size();
    memcpy(_state->message, error_msg.data(), error_msg.size());
    _state->message[error_msg.size()] = '\0';
    return 0;
}

Status::State* Status::copy_state(const State* s) {
    const size_t n = status_size(s->size);