| copyright: | Copyright 2013, Peter A. Bigot |
|---|---|
| license: | Apache-2.0 |
The IANA-assigned default port number for secured CoAP (the “coaps” URI scheme).
The IANA-assigned default port number for unsecured CoAP (the “coap” URI scheme).
Bases: coapy._Clock
A clock that increments under program control.
An instance of this class may be placed in coapy.clock to ensure deterministic behavior for simulation and automated testing. The value of the clock is initially zero; it is changed only through the adjust() method.
Bases: coapy._Clock
A clock that increments in lock-step with real-time.
This uses time.time() to obtain the current time. epoch is a record of the time at which the clock was created.
Bases: object
Base class for CoAPy clock abstraction.
An instance of (a subclass of) this class is made available globally at coapy.clock.
The current clock value is obtained by invoking the instance as a callable object.
The system clock.
This is an instance of _Clock that returns a non-decreasing ordinal when invoked (probably a float but possibly an int). The integer part increments in “seconds”. It is used for Max-Age, state related to congestion control and message retransmission, and other time-related phenomena.
Note
The default value is an instance of RealTimeClock, but this may be overridden with an instance of ManagedClock for the purposes of simulation or testing. Unless you’re doing this sort of thing, you should assume the clock increments in lock step with real-world time.
The default instance of TransmissionParameters for the system.
This is initialized when coapy.message is first loaded.