void *
thread_function (void *arg)
{
int i, j;
long thread_number = (long) arg;
thread_started ();
/* Don't start incrementing X until wp-replication.exp is ready. */
while (!test_ready)
usleep (1);
pthread_mutex_lock (&data_mutex);
for (i = 0; i < NR_TRIGGERS_PER_THREAD; i++)
{
for (j = 0; j < hw_watch_count; j++)
{
/* For debugging. */
printf ("Thread %ld changing watch_thread[%d] data"
" from %d -> %d\n", thread_number, j,
watched_data[j], watched_data[j] + 1);
/* Increment the watched data field. */
watched_data[j]++;
}
}
pthread_mutex_unlock (&data_mutex);
/* Hold the threads here to work around a problem GDB has evaluating
watchpoints right when a DSO event shows up (PR breakpoints/10116).
Sleep a little longer (than, say, 1, 5 or 10) to avoid consuming
lots of cycles while the other threads are trying to execute the
loop. */
while (!can_terminate)
usleep (100);
pthread_exit (NULL);
}
void *
thread_function (void *arg)
{
int i;
thread_started ();
/* Don't start incrementing X until watchthreads2.exp is ready. */
while (! test_ready)
usleep (1);
for (i = 0; i < X_INCR_COUNT; ++i)
{
pthread_mutex_lock (&x_mutex);
/* For debugging. */
printf ("Thread %ld changing x %d -> %d\n", (long) arg, x, x + 1);
/* The call to usleep is so that when the watchpoint triggers,
the pc is still on the same line. */
++x; usleep (1); /* X increment. */
pthread_mutex_unlock (&x_mutex);
}
pthread_exit (NULL);
}
