public void DoubleLock()
{
var manager = LockManagerFactory.Create(() => TestDbContext.Create());
var resource1 = new Guid("ACC9D515-1529-49BD-AECE-E163D9200E0F");
var resource2 = new Guid("A7FE17DA-BE0F-40FD-8AE6-7F1F7C615C72");
LockInfo lockInfo1, lockInfo2, lockInfo3;
var firstLock = manager.TryLock(resource1, new TimeSpan(TimeSpan.TicksPerMinute * 2), out lockInfo1);
manager.TryLock(resource1, new TimeSpan(TimeSpan.TicksPerMinute), out lockInfo2);
manager.TryLock(resource2, new TimeSpan(TimeSpan.TicksPerMinute), out lockInfo3);
Assert.True(firstLock && lockInfo1.HasLock);
Assert.False(lockInfo2.HasLock);
Assert.True(lockInfo3.HasLock);
manager.Release(lockInfo1);
manager.Release(lockInfo3);
manager.TryLock(resource1, new TimeSpan(TimeSpan.TicksPerMinute), out lockInfo2);
Assert.True(lockInfo2.HasLock);
manager.Release(lockInfo2);
Assert.False(lockInfo1.HasLock);
Assert.False(lockInfo2.HasLock);
Assert.False(lockInfo3.HasLock);
}
public async Task TestWaitForLockTimeoutAsync()
{
using (var manager = LockManagerFactory.Create(() => TestDbContext.Create()))
{
var resource = new Guid("3767EF33-8296-4363-95CE-120E0453E3D0");
LockInfo lockInfo = await manager.TryLockAsync(resource, TimeSpan.FromMinutes(5));
Assert.True(lockInfo.AsImmutable().HasLock());
LockInfo lockInfo2 = await manager.WaitForLockAsync(resource, TimeSpan.FromMinutes(1), TimeSpan.FromMilliseconds(50));
Assert.False(lockInfo2.AsImmutable().HasLock());
//Already cancelled token
LockInfo lockInfo3 = await manager.WaitForLockAsync(resource, TimeSpan.FromMinutes(1), TimeSpan.Zero);
Assert.False(lockInfo3.AsImmutable().HasLock());
await manager.ReleaseAsync(lockInfo);
await manager.ReleaseAsync(lockInfo2);
await manager.ReleaseAsync(lockInfo3);
}
}
public void RenewLock()
{
//*** TIME-SENSITIVE TEST, don't use debug-mode
var manager = LockManagerFactory.Create(() => TestDbContext.Create());
var resource1 = new Guid("CB2A9AD3-79F5-4FAA-A37E-FD21A1C688EB");
LockInfo lockInfo1, lockInfo2;
manager.TryLock(resource1, new TimeSpan(TimeSpan.TicksPerSecond), out lockInfo1);
Assert.True(lockInfo1.HasLock);
Thread.Sleep(500);
manager.TryRenewLock(lockInfo1); // 1 sec renew
Thread.Sleep(700);
Assert.True(lockInfo1.HasLock);
Thread.Sleep(500);
Assert.False(lockInfo1.HasLock);
manager.TryLock(resource1, new TimeSpan(TimeSpan.TicksPerSecond), out lockInfo2);
Assert.True(lockInfo2.HasLock);
manager.Release(lockInfo1);
manager.Release(lockInfo2);
}
public async Task BasicTestAsync()
{
ILockManagerAsync manager = LockManagerFactory.Create(() => TestDbContext.Create());
var resource1 = new Guid("B5FF501B-383A-49DD-BD84-74511F70FCE9");
var lockInfo1 = await manager.TryLockAsync(resource1, new TimeSpan(TimeSpan.TicksPerMinute));
Assert.True(lockInfo1 != null && lockInfo1.HasLock);
await manager.ReleaseAsync(lockInfo1);
Assert.False(lockInfo1.HasLock);
}
public void BasicTest()
{
var manager = LockManagerFactory.Create(() => TestDbContext.Create());
var resource1 = new Guid("B5FF501B-383A-49DD-BD84-74511F70FCE9");
LockInfo lockInfo1;
var firstLock = manager.TryLock(resource1, new TimeSpan(TimeSpan.TicksPerMinute), out lockInfo1);
Assert.True(firstLock && lockInfo1.HasLock);
manager.Release(lockInfo1);
Assert.False(lockInfo1.HasLock);
}
public void RunWithLockTimeout()
{
using (var manager = LockManagerFactory.Create(() => TestDbContext.Create()))
{
var resource = new Guid("D295C57E-BFBD-4760-8424-950875A594F7");
bool firstLockRun = false;
manager.RunWithLock(resource, TimeSpan.FromMinutes(5), TimeSpan.FromMinutes(1), (_lock) =>
{
firstLockRun = true;
Exception ex = null;
bool run = false;
try
{
manager.RunWithLock(resource, TimeSpan.FromMinutes(1), TimeSpan.FromMilliseconds(50),
(_lock2) =>
{
run = true;
});
}
catch (Exception exc)
{
ex = exc;
}
Assert.True(ex != null, "Exception was expected");
Assert.False(run);
try
{
manager.RunWithLock(resource, TimeSpan.FromMinutes(1), TimeSpan.Zero,
(_lock3) =>
{
run = true;
});
}
catch (Exception exc)
{
ex = exc;
}
Assert.True(ex != null, "Exception was expected");
Assert.False(run);
});
Assert.True(firstLockRun);
}
}
public async Task RunWithLockTimeoutAsync()
{
using (var manager = LockManagerFactory.Create(() => TestDbContext.Create()))
{
var resource = new Guid("B10F8164-6D72-4997-8CFC-60A0494A6818");
bool firstLockRun = false;
await manager.RunWithLockAsync(resource, TimeSpan.FromMinutes(5), TimeSpan.FromMinutes(1), async (_lock) =>
{
firstLockRun = true;
Exception ex = null;
bool run = false;
try
{
await manager.RunWithLockAsync(resource, TimeSpan.FromMinutes(1), TimeSpan.FromMilliseconds(50),
async(_lock2) =>
{
run = true;
});
}
catch (Exception exc)
{
ex = exc;
}
Assert.True(ex != null, "Exception was expected");
Assert.False(run);
try
{
await manager.RunWithLockAsync(resource, TimeSpan.FromMinutes(1), TimeSpan.Zero,
async(_lock3) =>
{
run = true;
});
}
catch (Exception exc)
{
ex = exc;
}
Assert.True(ex != null, "Exception was expected");
Assert.False(run);
});
Assert.True(firstLockRun);
}
}
public void ConcurrentLock_Start()
{
var manager = LockManagerFactory.Create(() => TestDbContext.Create());
var resource = new Guid("65917ECA-4A6B-451B-AE90-33236023E822");
LockInfo lockInfo = null;
_ThreadStartSignal.Set();
//Waits until all threads are initialized, then fire them together.
_signal.WaitOne();
for (int i = 0; i < _loopCount;)
{
try
{
if (_waitForLock)
{
manager.RunWithLock(resource, OneMinute, OneMinute, (_lock) =>
{
IncreaseCounter();
i++;
});
}
else
{
var lockAcquired = manager.TryLock(resource, OneMinute, out lockInfo);
if (lockAcquired)
//if (true) //** uncoment this line and comment lockAcquired to ignore lock and debug that the test is properly implemented.
{
IncreaseCounter();
i++; // increase loop counter only when acquired lock.
}
}
}
finally
{
manager.Release(lockInfo);
}
//Allows the execution of other threads.
Thread.Sleep(1);
}
}
public void TestWaitForLockTimeout()
{
using (var manager = LockManagerFactory.Create(() => TestDbContext.Create()))
{
var resource = new Guid("F4139466-2A16-47CC-8359-D53521C2C5EC");
LockInfo lockInfo = null;
LockInfo lockInfo2 = null;
LockInfo lockInfo3 = null;
Assert.True(manager.TryLock(resource, TimeSpan.FromMinutes(5), out lockInfo));
Assert.False(manager.WaitForLock(resource, TimeSpan.FromMinutes(1), TimeSpan.FromMilliseconds(50), out lockInfo2));
Assert.False(manager.WaitForLock(resource, TimeSpan.FromMinutes(1), TimeSpan.Zero, out lockInfo3));
manager.Release(lockInfo);
manager.Release(lockInfo2);
manager.Release(lockInfo3);
}
}
public void RenewLock2()
{
//*** TIME-SENSITIVE TEST, don't use debug-mode
var manager = LockManagerFactory.Create(() => TestDbContext.Create());
var resource1 = new Guid("AFE160D8-0172-4F0B-8A83-E44489080541");
LockInfo lockInfo1;
manager.TryLock(resource1, new TimeSpan(TimeSpan.TicksPerSecond), out lockInfo1);
Assert.True(lockInfo1.HasLock);
Thread.Sleep(1100);
Assert.False(lockInfo1.HasLock);
manager.TryRenewLock(lockInfo1, retryLock: false);
Assert.False(lockInfo1.HasLock);
manager.TryRenewLock(lockInfo1, retryLock: true);
Assert.True(lockInfo1.HasLock);
manager.Release(lockInfo1);
}
public void LockReferenceOverflow()
{
var manager = LockManagerFactory.Create(() => TestDbContext.Create());
var resource1 = new Guid("555279D1-8E95-483F-93ED-012DCE98EE73");
LockInfo lockInfo1;
manager.TryLock(resource1, new TimeSpan(TimeSpan.TicksPerSecond), out lockInfo1);
Thread.Sleep(1050);
Assert.False(lockInfo1.HasLock);
using (var context = TestDbContext.Create())
{
var maxReference = new SqlParameter("lockReference", int.MaxValue);
var resource = new SqlParameter("resource", lockInfo1.Resource);
context.Database.ExecuteSqlCommand("UPDATE DistributedLocks Set LockReference = @lockReference where Resource = @resource", maxReference, resource);
}
manager.TryLock(resource1, new TimeSpan(TimeSpan.TicksPerMinute), out lockInfo1);
Assert.True(lockInfo1.HasLock);
manager.Release(lockInfo1);
}
public void LockSpeed()
{
var manager = LockManagerFactory.Create(() => TestDbContext.Create());
var resource1 = new Guid("315A4649-12FE-44B2-8402-BE7DB8F2ADB6");
LockInfo lockInfo1;
var watch = new Stopwatch();
//ignores first lock speed;
manager.TryLock(resource1, new TimeSpan(TimeSpan.TicksPerSecond), out lockInfo1);
watch.Start();
for (int i = 0; i < 1000; i++)
{
manager.TryLock(resource1, new TimeSpan(TimeSpan.TicksPerSecond), out lockInfo1);
manager.Release(lockInfo1);
}
watch.Stop();
Console.AppendLine("Elapsed (ms): " + watch.ElapsedMilliseconds);
Assert.True(watch.ElapsedTicks < TimeSpan.TicksPerSecond * 5);
}
