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#include <stdio.h>
#include <string.h>
#include <pthread.h>
#include <unistd.h>
const int thread_count = 2;
pthread_t tid[2];
const char *thread_messages[2] = {
"First thread executing",
"Second thread executing"
};
void *doSomething(void *arg)
{
pthread_t id = pthread_self();
int num = -1;
for (int i = 0 ; i < thread_count ; ++i)
{
if (pthread_equal(id, tid[i]))
{
num = i + 1;
if (num == 2) printf("[%02d] %s\n", num, thread_messages[i]);
break;
}
}
for (unsigned int i = 0 ; i < 0x10000 ; ++i);
if (num == 2) printf("[%02d] Thread done.\n", num);
return NULL;
}
int main(int argc, char const *argv[])
{
int err;
for (int i = 0 ; i < thread_count ; ++i)
{
//printf("[00] Thread %d starting\n", i + 1);
err = pthread_create(&tid[i], NULL, doSomething, NULL);
if (err)
{
printf("[00] Couldn't create thread %d: %s\n", i + 1, strerror(err));
}
for (unsigned int i = 0 ; i < 0x1000 ; ++i);
}
//printf("[00] Waiting for all threads to end...\n");
for (int i = 0 ; i < thread_count ; ++i)
pthread_join(tid[i], NULL);
printf("\n[00] Done.\n");
return 0;
}
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