UlogStream (UORB message)

Message to stream ULog data from the logger. Corresponds to the LOGGING_DATA mavlink message

source file (opens new window)

# Message to stream ULog data from the logger. Corresponds to the LOGGING_DATA
# mavlink message

uint64 timestamp        # time since system start (microseconds)

# flags bitmasks
uint8 FLAGS_NEED_ACK = 1    # if set, this message requires to be acked.
                # Acked messages are published synchronous: a
                # publisher waits for an ack before sending the
                # next message

uint8 length            # length of data
uint8 first_message_offset  # offset into data where first message starts. This
                # can be used for recovery, when a previous message got lost
uint16 msg_sequence     # allows determine drops
uint8 flags         # see FLAGS_*
uint8[249] data     # ulog data

uint8 ORB_QUEUE_LENGTH = 16 # TODO: we might be able to reduce this if mavlink polled on the topic