organizer.cc.svn-base

德国Erlangen大学教学操作系统源码。

/*****************************************************************************/
/* Betriebssysteme                                                           */
/*---------------------------------------------------------------------------*/
/*                                                                           */
/*                          O R G A N I Z E R                                */
/*                                                                           */
/*---------------------------------------------------------------------------*/
/* Ein Organizer ist ein spezieller Scheduler, der zusaetzlich das Warten    */
/* von Threads (Customer) auf Ereignisse erlaubt.                            */
/*****************************************************************************/

#include "thread/organizer.h"


#include "device/cgastr.h"
extern CGA_Stream kout;

Organizer::Organizer()
{
}

Organizer::Organizer(Organizer& organizer)
{
}

Organizer::~Organizer()
{
}

void Organizer::block (Customer& customer, Waitingroom&  waitingroom)
{
	customer.waiting_in(&waitingroom);
	_blocked.enqueue(&customer);
	Scheduler::kill(customer);
}

void Organizer::wakeup (Customer& customer)
{
	Waitingroom* waitingroom = customer.waiting_in();
	if(waitingroom) 
		waitingroom->remove(&customer);
	_blocked.remove(&customer);
	ready(customer);
}

void Organizer::kill (Customer& that)
{
	Waitingroom* waitingroom = that.waiting_in();
	if(waitingroom) {
		waitingroom->remove(&that);
		_blocked.remove(&that);
	} else {
		Scheduler::kill(that);
	}
}