// Alarm tester - register_alarm, deregister_alarm, 
// minithread_sleep_with_timeout



#include <stdio.h>
#include <stdlib.h>
#include <Time.h>
#include <string.h>

#include "minithread.h"
#include "synch.h"
#include "alarm.h"

extern register_alarm(int delay, void (*func)(void*), void *arg);
extern void deregister_alarm(int alarmid);
extern void minithread_sleep_with_timeout(int);

int temp;
int testthread(int* arg);
void alarmcall(void *p);
void alarmcall2(void *p);
void wait(long timeout);
long mytime();

void main (void){

	minithread_system_initialize(testthread, NULL);

}


int testthread(int* arg){

	int timeout;
	int i;
	int id;
		
	// alarm test
	temp = 0;
	timeout = 100;

	// register_alarm
	printf("\n\n1. Testing register_alarm..\n");
	for(i = 0; i <= 2; i++, timeout *= 10){

		printf("\nRegistering alarm for %d ms at %d ms.. ", timeout, mytime());
		id = register_alarm(timeout, alarmcall, "testing");
		
		wait(4*timeout);
		deregister_alarm(id);

	}
		
	

	//deregister_alarm
	printf("\n\n2. Testing deregister_alarm..\n");
	timeout = 1000;

	for(i = 0; i <= 1; i++, timeout *= 5){
		temp = 0;
		printf("\nRegistering alarm for %d ms..", timeout);
		id = register_alarm(timeout, alarmcall2, "testing");
		printf("deregistering alarm..");
		deregister_alarm(id);
				
		wait(2*timeout);

		if(temp == 0)
			printf("successfully deregistered\n");
		else printf("deregister failed\n");
	}

	printf("\n\n3. Testing minithread_sleep_with_timeout..\n");

	//sleep with timeout test
	timeout=100;
	for(i = 0; i <= 2; i++, timeout*=10){
		printf("\nMinithread sleeping at %d ms - for %d ms .. ", mytime(), timeout);
		minithread_sleep_with_timeout(timeout);
		printf("woke up at %d ms", mytime());
	}
	printf("\n");

	return 0;
}

void alarmcall(void *p){

	long now = mytime();

	if(strcmp(p, "testing") != 0)
		printf("param defect");
	else printf("called at %d ms", now);

}

void alarmcall2(void *p){

	temp = 1;
	printf("executed !\n");
	
}

// return relative time in millisecs
long mytime(){

	return ((long) clock());

}

// wait for timeout millisecs
void wait(long timeout){

	long now = mytime();

	while(now+timeout > mytime())
		;
}