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#define _GNU_SOURCE
#include <pthread.h>
#include <stdio.h>
#include <error.h>
#include <errno.h>
#define THREADS 10
#define KEYS 400
pthread_key_t key[KEYS];
void *
thr (void *arg)
{
error_t err;
int i;
for (i = 0; i < KEYS; i ++)
{
printf ("pthread_getspecific(%d).\n", key[i]);
assert (pthread_getspecific (key[i]) == NULL);
printf ("pthread_setspecific(%d, %d).\n", key[i], pthread_self ());
err = pthread_setspecific (key[i], (void *) pthread_self ());
printf ("pthread_setspecific(%d, %d) => %d.\n", key[i], pthread_self (), err);
assert_perror (err);
}
return 0;
}
int
main (int argc, char **argv)
{
error_t err;
int i;
pthread_t tid[THREADS];
void des (void *val)
{
assert ((pthread_t) val == pthread_self ());
}
for (i = 0; i < KEYS; i ++)
err = pthread_key_create (&key[i], des);
for (i = 0; i < THREADS; i ++)
{
err = pthread_create (&tid[i], 0, thr, 0);
if (err)
error (1, err, "pthread_create (%d)", i);
}
for (i = 0; i < THREADS; i ++)
{
void *ret;
err = pthread_join (tid[i], &ret);
if (err)
error (1, err, "pthread_join");
assert (ret == 0);
}
return 0;
}
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