glib/tests/threadpool-test.c

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#include <glib.h>
#define RUNS 100
G_LOCK_DEFINE_STATIC (thread_counter);
gulong abs_thread_counter;
gulong running_thread_counter;
void
thread_pool_func (gpointer a, gpointer b)
{
G_LOCK (thread_counter);
abs_thread_counter++;
running_thread_counter++;
G_UNLOCK (thread_counter);
g_usleep (g_random_int_range (0, 4000));
G_LOCK (thread_counter);
running_thread_counter--;
G_UNLOCK (thread_counter);
}
int
main (int argc,
char *argv[])
{
GThreadPool *pool1, *pool2, *pool3;
guint i;
/* Only run the test, if threads are enabled and a default thread
implementation is available */
#if defined(G_THREADS_ENABLED) && ! defined(G_THREADS_IMPL_NONE)
g_thread_init (NULL);
pool1 = g_thread_pool_new (thread_pool_func, 3, 0, FALSE,
G_THREAD_PRIORITY_NORMAL, FALSE, NULL, NULL);
pool2 = g_thread_pool_new (thread_pool_func, 5, 0, FALSE,
G_THREAD_PRIORITY_LOW, FALSE, NULL, NULL);
pool3 = g_thread_pool_new (thread_pool_func, 7, 0, FALSE,
G_THREAD_PRIORITY_LOW, TRUE, NULL, NULL);
for (i = 0; i < RUNS; i++)
{
g_thread_pool_push (pool1, GUINT_TO_POINTER (1), NULL);
g_thread_pool_push (pool2, GUINT_TO_POINTER (1), NULL);
g_thread_pool_push (pool3, GUINT_TO_POINTER (1), NULL);
}
g_thread_pool_free (pool1, FALSE, TRUE);
g_thread_pool_free (pool2, FALSE, TRUE);
g_thread_pool_free (pool3, FALSE, TRUE);
g_assert (RUNS * 3 == abs_thread_counter);
g_assert (running_thread_counter == 0);
#endif
return 0;
}