bool secure_tunneling_send_data_call()

in source/secure_tunneling.c [472:497]

• 25 lines of code
• 8 McCabe index (conditional complexity)

bool secure_tunneling_send_data_call(struct aws_websocket *websocket, struct aws_byte_buf *out_buf, void *user_data) {
    UNUSED(websocket);
    struct data_tunnel_pair *pair = user_data;
    size_t space_available = out_buf->capacity - out_buf->len;
    if ((pair->length_prefix_written == false) && (space_available >= PAYLOAD_BYTE_LENGTH_PREFIX)) {
        if (aws_byte_buf_write_be16(out_buf, (int16_t)pair->buf.len) == false) {
            AWS_LOGF_ERROR(AWS_LS_IOTDEVICE_SECURE_TUNNELING, "Failure writing buffer length prefix to out_buf");
            return false;
        }
        pair->length_prefix_written = true;
        space_available = out_buf->capacity - out_buf->len;
    }
    if (pair->length_prefix_written == true) {
        size_t bytes_max = pair->cur.len;
        size_t amount_to_send = bytes_max < space_available ? bytes_max : space_available;

        struct aws_byte_cursor send_cursor = aws_byte_cursor_advance(&pair->cur, amount_to_send);
        if (send_cursor.len) {
            if (aws_byte_buf_write_from_whole_cursor(out_buf, send_cursor) == false) {
                AWS_LOGF_ERROR(AWS_LS_IOTDEVICE_SECURE_TUNNELING, "Failure writing data to out_buf");
                return false;
            }
        }
    }
    return true;
}