UdpDataSource

const val DEFAULT_MAX_PACKET_SIZE = 2000: Int

The default maximum datagram packet size, in bytes.

const val DEFAULT_SOCKET_TIMEOUT_MILLIS = 8000: Int

The default socket timeout, in milliseconds.

UdpDataSource(maxPacketSize: Int)

Constructs a new instance.

UdpDataSource(maxPacketSize: Int, socketTimeoutMillis: Int)

Constructs a new instance.

fun close(): Unit

Closes the source. This method must be called even if the corresponding call to open threw an IOException.

fun getLocalPort(): Int

Returns the local port number opened for the UDP connection, or UDP_PORT_UNSET if no connection is open

fun open(dataSpec: DataSpec!): Long

Opens the source to read the specified data. If an IOException is thrown, callers must still call close to ensure that any partial effects of the invocation are cleaned up.

The following edge case behaviors apply:

• If the requested position is within the resource, but the requested length extends beyond the end of the resource, then open will succeed and data from the requested position to the end of the resource will be made available through read.
• If the requested position is equal to the length of the resource, then open will succeed, and read will immediately return RESULT_END_OF_INPUT.
• If the requested position is greater than the length of the resource, then open will throw an IOException for which isCausedByPositionOutOfRange will be true.

fun read(buffer: ByteArray!, offset: Int, length: Int): Int

Reads up to length bytes of data from the input.

If readLength is zero then 0 is returned. Otherwise, if no data is available because the end of the opened range has been reached, then RESULT_END_OF_INPUT is returned. Otherwise, the call will block until at least one byte of data has been read and the number of bytes read is returned.