BROADCAST_ADR = MAX_MESSAGE_ADR

Reserved INM node address for broadcast messages.

DEFAULT_BAUDRATE = 38400

Default baud rate to set on the opened serial port.

DEFAULT_CH_TIMEOUT = get_timedelta( musecs  =  10000 )

If no receive timeout is set on a RoutingMessageChannel, then the timeout set on each of the recv_channels will be DEFAULT_CH_TIMEOUT.

DEFAULT_IP_ADR = '127.0.0.1'

Default IP socket address.

DEFAULT_IP_ADR = '127.0.0.1'

Default IP address of internal InetMessageChannel.

DEFAULT_LINK_UDP_PORT = 3000

Default target UDP port of internal InetMessageChannel.

default_msg_factory = MessageFactory()

A default instance of MessageFactory.

DEFAULT_REG_ENUM_MSG_TYPES = ( StandardTypes.REG_READ, StandardTypes.REG_READ_RES, StandardTypes.INM_REG_READ_RES, StandardTypes.REG_WRITE, StandardTypes.REG_TOGGLE, StandardTypes.REG_RW_EXCH, StandardTypes.REG_WR_EXCH, StandardTypes.REGPAIR_READ, StandardTypes.REGPAIR_READ_RES, StandardTypes.INM_REGPAIR_READ_RES, StandardTypes.REGPAIR_WRITE, StandardTypes.REGPAIR_TOGGLE, StandardTypes.REGPAIR_RW_EXCH, StandardTypes.REGPAIR_WR_EXCH )

Default message types for register identifier enum conversion.

DEFAULT_RES_ENUM_MSG_TYPES = ( StandardTypes.RESULT, StandardTypes.INM_RESULT )

Default message types for result code enum conversion.

DEFAULT_SRCADR = 99

Default INM source address.

DEFAULT_TCP_PORT = 2357

Default port number of TCP socket.

DEFAULT_UDP_PORT = 2357

Default port number of UDP socket.

DEFAULT_UDP_PORT = 2999

Default UDP port of internal InetMessageChannel.

DSTADR_SIZE = 1

Size in bytes of the destination address field in an INM message header.

get_timestamp = datetime.datetime.now

Produces a datetime.datetime representing the current local time.

HEADER_SIZE = MESSAGE_ID_SIZE + DSTADR_SIZE + SRCADR_SIZE

Size in bytes of a complete INM message header.

LOCAL_ADR = 0x00

Reserved INM node address for the local node.

make_default_selector = True

If this is true, a default selector object (from the standard library module selectors) will be created for each instance of MessageChannel that isn’t provided with a custom selector at initialization.

MAKE_VAL_ATTR_NAME = 'to_inm_val'

Name of attribute to use for custom conversion of objects into INM message values/payloads.

MAX_DATAGRAM_SIZE = 0xffff

Maximum size of sent UDP datagrams.

MAX_MESSAGE_ADR = 0xff

Largest valid INM node address.

MAX_MESSAGE_ID = 0xffff

Largest valid INM message identifier.

MAX_MESSAGE_LEN = 0xffffffff

Maximum value of the message length field in a large INM message, and thereby also the maximum size in bytes of a large message value field.

MAX_MESSAGE_LEN = 0xff - N_HEADER_BYTES

Maximum supported INM message (value) length.

MAX_MESSAGE_LEN = 0xff

Maximum value of the message length field in a standard INM message, and thereby also the maximum size in bytes of a standard message value field.

MAX_TYPE_NUM = 0xff

Largest valid message type identifier for large INM messages.

MAX_TYPE_NUM = 0x7f

Largest valid message type identifier for standard INM messages.

MESSAGE_ID_SIZE = 2

Size in bytes of the message identifier field in an INM message header.

MESSAGE_LEN_SIZE = 4

Size in bytes of the message length field in a large INM message.

MESSAGE_LEN_SIZE = 1

Size in bytes of the message length field in a standard INM message.

MESSAGE_TYP_SIZE = 1

Size in bytes of the message type identifier field in an INM message.

MIN_MESSAGE_SIZE = Message.MESSAGE_TYP_SIZE + MESSAGE_LEN_SIZE

Minimum size in bytes of a large INM message.

MIN_MESSAGE_SIZE = Message.MESSAGE_TYP_SIZE + MESSAGE_LEN_SIZE

Minimum size in bytes of a standard INM message.

MIN_TYPE_NUM = 0x80

Smallest valid message type identifier for large INM messages.

MIN_TYPE_NUM = 0x00

Smallest valid message type identifier for standard INM messages.

N_HEADER_BYTES = MessageHeader.HEADER_SIZE + StandardMessage.MIN_MESSAGE_SIZE

Total size of the header, type and length fields of an INM message.

PROTOCOL_TYPE_NUM = MAX_TYPE_NUM

Type identifier reserved for INM protocol messages.

RC = inm.ResultCode

Shorthand alias of ResultCode.

Reg = inm.StandardRegisters

Shorthand alias of StandardRegisters.

Res = inm.StandardResults

Shorthand alias of StandardResults.

SRCADR_SIZE = 1

Size in bytes of the source address field in an INM message header.

TIMEOUT_DIVISOR = 10.0

If a receive timeout is set on a RoutingMessageChannel, the timeout set on each of the recv_channels will be the primary timeout divided by TIMEOUT_DIVISOR times the number of receive channels.

TIMEOUT_DIVISOR = 10.0

If a receive timeout is set on a SerialMessageChannel, the timeout set for each attempt to read data from the underlying serial port API will be the primary timeout divided by TIMEOUT_DIVISOR.

Typ = inm.StandardTypes

Shorthand alias of StandardTypes.

VC = inm.ValueConversions

Shorthand alias of ValueConversions.

ZERO_DURATION = datetime.timedelta( )

A datetime.timedelta representing a zero duration.