public void TestStress()
{
#region Initialization
object lockObject = new object();
Timeout timeout = new Timeout(null);
TimeoutTask[] tasks;
timeout = new Timeout(lockObject);
tasks = new TimeoutTask[10];
for (int i = 0; i < tasks.Length; i++)
{
tasks[i] = new TimeoutTask();
timeout.Now = 1000 + i * 100;
timeout.Schedule(tasks[i]);
}
timeout.Now = 100;
#endregion
int LOOP = 500;
bool[] running = new bool[] { true };
int[] count = new int[] { 0, 0, 0 };
timeout.Now = (DateTime.UtcNow.Ticks / 1000);
timeout.Duration = 500;
// Start a ticker thread that will tick over the timer frequently.
System.Threading.Thread ticker = new System.Threading.Thread(
new System.Threading.ThreadStart(
() =>
{
while (running[0])
{
try
{
// use lock.wait so we have a memory barrier and
// have no funny optimisation issues.
lock (lockObject)
{
System.Threading.Monitor.Wait(lockObject, 30);
}
System.Threading.Thread.Sleep(30);
timeout.Tick((DateTime.UtcNow.Ticks / 1000));
}
catch (Exception e)
{
Console.Error.WriteLine(e.StackTrace);
}
}
}
)
);
ticker.Start();
// start lots of test threads
for (int i = 0; i < LOOP; i++)
{
//
System.Threading.Thread th = new System.Threading.Thread(
new System.Threading.ThreadStart(
() =>
{
// count how many threads were started (should == LOOP)
lock (count)
{
count[0]++;
}
// create a task for this thread
TimeoutTask task = new TimeoutTask1(count);
// this thread will loop and each loop with schedule a
// task with a delay on top of the timeouts duration
// mostly this thread will then cancel the task
// But once it will wait and the task will expire
int once = (int)(10 + ((DateTime.UtcNow.Ticks / 1000) % 50));
// do the looping until we are stopped
int loop = 0;
while (running[0])
{
try
{
long delay = 1000;
long wait = 100 - once;
if (loop++ == once)
{
// THIS loop is the one time we wait 1000ms
lock (count)
{
count[1]++;
}
delay = 200;
wait = 1000;
}
timeout.Schedule(task, delay);
// do the wait
System.Threading.Thread.Sleep((int)wait);
// cancel task (which may have expired)
task.Cancel();
}
catch (Exception e)
{
Console.Error.WriteLine(e.StackTrace);
}
}
}
));
th.Start();
}
// run test for 5s
System.Threading.Thread.Sleep(8000);
lock (lockObject)
{
running[0] = false;
}
// give some time for test to stop
System.Threading.Thread.Sleep(2000);
timeout.Tick((DateTime.UtcNow.Ticks / 1000));
System.Threading.Thread.Sleep(1000);
// check the counts
Assert.AreEqual(LOOP, count[0], "count threads");
Assert.AreEqual(LOOP, count[1], "count once waits");
Assert.AreEqual(LOOP, count[2], "count expires");
}
public void TestStress()
{
#region Initialization
object lockObject = new object();
Timeout timeout = new Timeout(null);
TimeoutTask[] tasks;
timeout = new Timeout(lockObject);
tasks = new TimeoutTask[10];
for (int i = 0; i < tasks.Length; i++)
{
tasks[i] = new TimeoutTask();
timeout.Now = 1000 + i * 100;
timeout.Schedule(tasks[i]);
}
timeout.Now = 100;
#endregion
int LOOP = 500;
bool[] running = new bool[] { true };
int[] count = new int[] { 0, 0, 0 };
timeout.Now = (DateTime.UtcNow.Ticks / 1000);
timeout.Duration = 500;
// Start a ticker thread that will tick over the timer frequently.
System.Threading.Thread ticker = new System.Threading.Thread(
new System.Threading.ThreadStart(
() =>
{
while (running[0])
{
try
{
// use lock.wait so we have a memory barrier and
// have no funny optimisation issues.
lock (lockObject)
{
System.Threading.Monitor.Wait(lockObject, 30);
}
System.Threading.Thread.Sleep(30);
timeout.Tick((DateTime.UtcNow.Ticks / 1000));
}
catch (Exception e)
{
Console.Error.WriteLine(e.StackTrace);
}
}
}
)
);
ticker.Start();
// start lots of test threads
for (int i = 0; i < LOOP; i++)
{
//
System.Threading.Thread th = new System.Threading.Thread(
new System.Threading.ThreadStart(
() =>
{
// count how many threads were started (should == LOOP)
lock (count)
{
count[0]++;
}
// create a task for this thread
TimeoutTask task = new TimeoutTask1(count);
// this thread will loop and each loop with schedule a
// task with a delay on top of the timeouts duration
// mostly this thread will then cancel the task
// But once it will wait and the task will expire
int once = (int)(10 + ((DateTime.UtcNow.Ticks / 1000) % 50));
// do the looping until we are stopped
int loop = 0;
while (running[0])
{
try
{
long delay = 1000;
long wait = 100 - once;
if (loop++ == once)
{
// THIS loop is the one time we wait 1000ms
lock (count)
{
count[1]++;
}
delay = 200;
wait = 1000;
}
timeout.Schedule(task, delay);
// do the wait
System.Threading.Thread.Sleep((int)wait);
// cancel task (which may have expired)
task.Cancel();
}
catch (Exception e)
{
Console.Error.WriteLine(e.StackTrace);
}
}
}
));
th.Start();
}
// run test for 5s
System.Threading.Thread.Sleep(8000);
lock (lockObject)
{
running[0] = false;
}
// give some time for test to stop
System.Threading.Thread.Sleep(2000);
timeout.Tick((DateTime.UtcNow.Ticks / 1000));
System.Threading.Thread.Sleep(1000);
// check the counts
Assert.AreEqual(LOOP, count[0], "count threads");
Assert.AreEqual(LOOP, count[1], "count once waits");
Assert.AreEqual(LOOP, count[2], "count expires");
}