bool LazyInstanceState::needConstruction() {
AtomicType state = loadAcquire(&mState);
if (mState == STATE_DONE)
return false;
state = atomicCompareAndSwap(&mState, STATE_INIT, STATE_CONSTRUCTING);
if (state == STATE_INIT)
return true;
do {
yieldThread();
state = loadAcquire(&mState);
} while (state != STATE_DONE);
return false;
}
void printMyThreadForThread0(int iter)
{
int tid = getThread();
int i;
int j;
spawnThread(printMyThread,iter);
// delay
for(i=0; i<NUMYIELDS; i++) {
// Delay(100);
Printf("%d ",iter);
for(j=0; (j<tid); j++)
Printf(".");
Printf("T%d \n", tid);
yieldThread((tid+1)%MAXTHREADS);
}
}
void Main ()
{
int i, me;
void printMyThread();
initThreads ();
me = getThread ();
for(i=1; i<MAXTHREADS; i++)
spawnThread(printMyThread,0);
for (i = 0; i < NUMYIELDS; i++) {
Printf("0 T%d\n",me);
yieldThread(1);
}
exitThread ();
}
/*
* Yield processor to another thread of the same priority.
*/
void
java_lang_Thread_yield(void)
{
yieldThread();
}