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35 | // Copyright 2021 Jeisson Hidalgo <jeisson.hidalgo@ucr.ac.cr> CC-BY 4.0
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
// #include <unistd.h>
/**
* @brief ...
*/
void* greet(void* data);
// procedure main:
int main(void) {
// create_thread(greet)
pthread_t thread;
int error = pthread_create(&thread, /*attr*/ NULL, greet, /*arg*/ NULL);
if (error == EXIT_SUCCESS) {
// print "Hello from main thread"
// usleep(1); // indeterminism
printf("Hello from main thread\n");
pthread_join(thread, /*value_ptr*/ NULL);
} else {
fprintf(stderr, "Error: could not create secondary thread\n");
}
return error;
} // end procedure
// procedure greet:
void* greet(void* data) {
(void)data;
// print "Hello from secondary thread"
printf("Hello from secondary thread\n");
return NULL;
} // end procedure
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