ganeti.jqueue._WaitForJobChangesHelper

Class _WaitForJobChangesHelper

Helper class using inotify to wait for changes in a job file.

This class takes a previous job status and serial, and alerts the client when the current job status has changed.

Instance Methods

__call__(self, filename, job_load_fn, fields, prev_job_info, prev_log_serial, timeout, _waiter_cls=_JobChangesWaiter)
Waits for changes on a job.

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Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __init__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Static Methods

[hide private]

_CheckForChanges(counter, job_load_fn, check_fn)

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Properties

[hide private]

Inherited from object: __class__

call(self, filename, job_load_fn, fields, prev_job_info, prev_log_serial, timeout, _waiter_cls=_JobChangesWaiter)
(Call operator)

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Waits for changes on a job.

Parameters:

filename (string) - File on which to wait for changes
job_load_fn (callable) - Function to load job
fields (list of strings) - Which fields to check for changes
prev_job_info (list or None) - Last job information returned
prev_log_serial (int) - Last job message serial number
timeout (float) - maximum time to wait in seconds

Class _WaitForJobChangesHelper

__call__(self, filename, job_load_fn, fields, prev_job_info, prev_log_serial, timeout, _waiter_cls=_JobChangesWaiter) (Call operator)

call(self, filename, job_load_fn, fields, prev_job_info, prev_log_serial, timeout, _waiter_cls=_JobChangesWaiter)
(Call operator)