void *run(int tid, void (*lock_function)(type *),
void (*unlock_function)(type *), int *lock_accesses,
int lock_accesses_size) {
if (pin && stick_this_thread_to_core(tid % num_cores) != 0)
printf("Could not pin thread\n");
int ops = 0; // use local variable, otherwise we're potentially in the same cache line as other threads
int i = 0;
while (!stop_run) {
int access = lock_accesses[i];
type* mutex_ptr = &mutexes[access].value;
#if DEBUG == 1
printf("[T#%d] Locking %d (%p)\n", tid, access, mutex_ptr);
#endif
lock_function(mutex_ptr);
nop_wait(sleep_time);
#if DEBUG == 1
printf("[T#%d] Unlocking %d (%p)\n", tid, access, mutex_ptr);
#endif
unlock_function(mutex_ptr);
ops++;
i++;
i = i % lock_accesses_size;
}
operations_count[tid] = ops;
}
void Fl::lock()
{
if (!main_thread)
InitializeCriticalSection(&cs);
lock_function();
if (!main_thread)
{
fl_lock_function = lock_function;
fl_unlock_function = unlock_function;
main_thread = GetCurrentThreadId();
}
}
void Fl::lock()
{
lock_function();
if (!thread_filedes[1]) // initialize the mt support
{
// Init threads communication pipe to let threads awake FLTK from wait
pipe(thread_filedes);
Fl::add_fd(thread_filedes[0], FL_READ, thread_awake_cb);
fl_lock_function = lock_function;
fl_unlock_function = Fl::unlock;
}
}
