buzzer_tester.h.svn-base

德国Erlangen大学教学操作系统源码。

#ifndef __buzzer_tester_include__
#define __buzzer_tester_include__

#include "user/appl.h"
#include "syscall/guarded_buzzer.h"
#include "device/cgastr.h"
#include "guard/secure.h"

extern CGA_Stream kout;

class BuzzerTester : public Application
{
public:
	BuzzerTester(void* tos, int row) : Application(tos, row) {}
	virtual ~BuzzerTester() {}
	
	void action ()
	{
		Guarded_Buzzer buzzer;
		
		int i = 0;
		while(true) {
			buzzer.set(1000*_row);
			buzzer.sleep();
			do {
				Secure lock;
				int type_x, type_y;
				kout.getpos(type_x, type_y);
				kout.setpos(0, _row);
				kout << _row << " buzzer wait:" << _row << " ringed: " << i++ << endl;
				kout.flush();
				kout.setpos(type_x, type_y);
			} while(0);
		}
	}
};

#endif