public void CheckPutBlockingOnAFullBoundedQueue()
{
var bq = new BoundedQueue <int>(1);
bool interrupted = false;
Thread t = new Thread(() =>
{
try {
bq.Put(1);
// will block
bq.Put(2);
}
catch (ThreadInterruptedException)
{
interrupted = true;
}
});
t.Start();
// Give a security margin to thread t1 execution.
// Not really rocket science, but...
Thread.Sleep(3000);
t.Interrupt();
t.Join();
// success if the previous interruption
// removes thread from blocking in second Put operation
Assert.IsTrue(interrupted);
}
public void TestTransfer1To10ViaBoundedQueue()
{
int[] sendingNumbers = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
int[] receivedNumbers = new int[10];
using (var bb = new BoundedQueue <int>(1))
{
Thread producer = new Thread(() =>
{
foreach (int i in sendingNumbers)
{
bb.Put(i);
}
});
Thread consumer = new Thread(() =>
{
for (int i = 0; i < 10; ++i)
{
int val = bb.Get();
receivedNumbers[i] = val;
}
});
consumer.Start();
producer.Start();
producer.Join();
consumer.Join();
Assert.AreEqual(sendingNumbers, receivedNumbers);
}
}
public void OneProducerOneConsumerBlockedOnGet()
{
const int CAPACITY = 100;
const int MAX_VAL = 10000;
const int CONCLUDED_TIMEOUT = 5000;
ManualResetEvent concluded = new ManualResetEvent(false);
BoundedQueue <int> queue = new BoundedQueue <int>(CAPACITY);
bool result = true;
ThreadStart producer = () => {
for (int i = 1; i <= MAX_VAL; ++i)
{
queue.Put(i);
}
};
ThreadStart consumer = () => {
int pred = 0;
try {
// read one more than is produced
for (int i = 1; i <= MAX_VAL + 1; ++i)
{
int val = queue.Get();
if (val != pred + 1)
{
result = false;
return;
}
pred = val;
}
}
catch (Exception) {
result = false;
}
finally {
concluded.Set();
}
};
Thread tprod = new Thread(producer);
tprod.Start();
Thread tcons = new Thread(consumer);
tcons.Start();
bool waitRes = concluded.WaitOne(CONCLUDED_TIMEOUT);
concluded.Close();
Assert.AreEqual(true, result, "Error on Get!");
Assert.AreEqual(false, waitRes, "Timeout must occurr!");
}
