comb.slot — Slot base class

Slot

class comb.slot.Slot(combd)

To use comb, you should create a python module file. we named slot.

A legal slot must be named ‘Slot’ in your module file and it must be at least contain four method:

• initialize

initial resource, e.g: database handle

• __enter__

get next data to do,you can fetch one or more data.

• slot

user custom code

• __exit__

when slot finished, call this method

Don’t override this method unless what you’re doing.

Slot.__init__(combd)

Don’t override this method unless what you’re doing.

Slot.__enter__()

You MUST return False when no data to do.

The return value will be used in Slot.slot

Slot.__exit__(exc_type, exc_val, exc_tb)

When slot done, will call this method.

Slot.initialize()

Hook for subclass initialization.

This block is execute before thread initial

Example:

class UserSlot(Slot):
    def initialize(self):
        self.threads_num = 10 

    def slot(self, result):
        ...

Slot.slot(msg)

Add your custom code at here.

For example, look at:

• comb.demo.list
• comb.demo.mongo
• comb.demo.redis