///////////////////////////////////
//
// thread_ex project
// thread_1.cpp
//
// created 7/13/21 by tj
// rev 0
//
///////////////////////////////////
//
// Example for thread usage
//
// **** DONT FORGET THE WHILE() IN THE THREAD ****
// **** IF YOU WANT TO KEEP IT RUNNING ****
//
// printing various characters based on threads
//
///////////////////////////////////

#include "mbed.h"
#include <stdio.h>

// function prototypes (for thread callback)
void Plus(void);
void Minus(void);
void Star(void);

// create seperate thread for each character
Thread T_plus;
Thread T_minus;
Thread T_star;

// globals to manipulate in the threads
static int p = 0;
static int m = 0;
static int s = 0;

int main(void){
    setbuf(stdout, NULL);
    
    // splash 
    printf("\n\nthread_1 - example for EE2905\n");
    printf("Using Mbed OS version %d.%d.%d\n\n", 
            MBED_MAJOR_VERSION, MBED_MINOR_VERSION, MBED_PATCH_VERSION);


    // start the threads
    T_plus.start(callback(Plus));
    T_minus.start(callback(Minus));
    T_star.start(callback(Star));

    // main loop prints CR - every 5 seconds
    while(1){
        printf("\n");
        printf("%i %i %i\n", p, m, s);
        wait_us(4800000);
    }// end while
    
    return 0;
}// end main

void Plus(void){
    while(1){
        printf("+");
        p++;
        ThisThread::sleep_for(200ms);
    }// end while

    return;
}// end plus

void Minus(void){
    int i;
    for(i = 0; i < 50; i++){
        printf("-");
        m++;
        ThisThread::sleep_for(600ms);
    }// end for

    return;
}// end minus

void Star(void){
    while(1){
        printf("*");
        s++;
        ThisThread::sleep_for(1200ms);
    }// end while

    return;
}// end minus