#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <pthread.h>

#define MAX_THREAD 10

typedef struct 
{
    int* nb_threads;
} paramStruct; // data structure will be passed to a thread

// function that a thread executes.
void* thread_handler(void* param)
{
    paramStruct * p = (paramStruct *) param; //get parameters
    pthread_t tID = pthread_self();
    
    printf("Staring thread tid %lu, current nb_thread=%d\n", (unsigned long int) tID, *p->nb_threads);
    //Do something here
    sleep(5);//sleep for 50 seconds
    printf("End of thread tid %lu, current nb_thread=%d\n", (unsigned long int) tID,  *p->nb_threads);
    return NULL;
}

int main(int argc, char **argv)
{
    int nb_threads=0;
    pthread_t threadList [MAX_THREAD]; //list of threads, for later cleaning them.

    for (int i=0; i<10; i++)
    {
        nb_threads++; // count nb of thread created
        // Generate a thread to execute a task in thread_handler with paramet in client_info
        pthread_t* t_child =malloc(sizeof(pthread_t));
        paramStruct* param = malloc(sizeof(paramStruct)); // must do it to make sur each thread receive different memory for param
        param->nb_threads =&nb_threads;
        pthread_create(t_child, NULL, thread_handler, param );
        
        threadList[i]=*t_child;
    }
    // cleaning the stacks of all threads. 
    for (int i=0; i<10; i++)
    {
        pthread_join(threadList[i], NULL); 
    }
}