public class JobQueue extends Object
JobQueue implements a queue for jobs.
For every jobs thread id exists a job queue which is registered
at the ThreadPool.
A JobQueue is split into a sync job queue and an async job queue.
The sync job queue is the registered queue, it delegates async jobs
(put by putjob) into the async queue, which is only
known by the sync queue.
IThreadPool,
Job,
ThreadIdprotected int _ref_count
protected JobQueue _sync_jobQueue