libmuscle.outbox module

class libmuscle.outbox.Outbox

Bases: object

Stores messages to be sent to a particular receiver.

An Outbox is a queue of messages, which may be deposited and then retrieved in the same order.

deposit(message: Buffer) → None

Put a message in the Outbox.

The message will be placed at the back of a queue, and may be retrieved later via retrieve().

Parameters:

message – The message to store.

is_empty() → bool

Returns True iff the outbox is empty.

retrieve() → Buffer

Retrieve a message from the Outbox.

The message will be removed from the front of the queue, and returned to the caller. Blocks if the queue is empty, until a message is deposited.

Returns:

The next message.