Thread-Specific Data: Example - Main.

#include <pthread.h>

#include <stdlib.h>

pthread_key_t key1, key2;

void destruct(void *value), start_func(int thread_num);

main()

{

int ret_val;

pthread_t tid1;

ret_val = pthread_key_create(&key1, (void *) NULL);

ret_val = pthread_key_create(&key2, destruct);

ret_val = pthread_create(&tid1, (pthread_attr_t *)NULL,

(void *(*)(void *))start_func,(void *) 1);

start_func(0);

ret_val = pthread_join(tid1, (void **)NULL);

ret_val = pthread_key_delete(key1);

ret_val = pthread_key_delete(key2);

}

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