Module os::task::manager

Implementation of TaskManager

It is only used to manage processes and schedule process based on ready queue. Other CPU process monitoring functions are in Processor.

Structs

• PID2TCB
  PID2PCB instance (map of pid to pcb)
• TASK_MANAGER
  TASK_MANAGER instance through lazy_static!
• TaskManager

Functions

• add_task
  Add process to ready queue
• fetch_task
  Take a process out of the ready queue
• pid2task
  Get process by pid
• remove_from_pid2task
  Remove item(pid, _some_pcb) from PDI2PCB map (called by exit_current_and_run_next)