mutex_switch_lock
extern status_t mutex_switch_lock(mutex* from, mutex* to);
return mutex_switch_lock(from, &fLock) == B_OK;
mutex_switch_lock->GetParameter("toFlags")->SetHandler(
Syscall *mutex_switch_lock = get_syscall("_kern_mutex_switch_lock");
mutex_switch_lock->GetParameter("fromMutex")->SetHandler(new MutexTypeHandler());
mutex_switch_lock->GetParameter("fromFlags")->SetHandler(
mutex_switch_lock->GetParameter("toMutex")->SetHandler(new MutexTypeHandler());
status_t status = mutex_switch_lock(&from->lock, &to->lock);
status_t status = mutex_switch_lock(from, &to->lock);