public async Task Semaphore_AcquireWaitRelease()
{
const string keyName = "test/semaphore/acquirewaitrelease";
var semaphoreOptions = new SemaphoreOptions(keyName, 1)
{
SessionName = "test_semaphoresession",
SessionTTL = TimeSpan.FromSeconds(10),
MonitorRetries = 10
};
var semaphore = _client.Semaphore(semaphoreOptions);
await semaphore.Acquire(CancellationToken.None);
Assert.True(semaphore.IsHeld);
// Wait for multiple renewal cycles to ensure the semaphore session stays renewed.
for (int i = 0; i < 60; i++)
{
await Task.Delay(1000);
Assert.True(semaphore.IsHeld);
}
Assert.True(semaphore.IsHeld);
await semaphore.Release();
Assert.False(semaphore.IsHeld);
await semaphore.Destroy();
}
public void Semaphore_AcquireWaitRelease()
{
var client = new Client();
const string keyName = "test/semaphore/acquirewaitrelease";
var semaphoreOptions = new SemaphoreOptions(keyName, 1)
{
SessionName = "test_semaphoresession",
SessionTTL = TimeSpan.FromSeconds(10)
};
var semaphore = client.Semaphore(semaphoreOptions);
semaphore.Acquire(CancellationToken.None);
Assert.IsTrue(semaphore.IsHeld);
// Wait for multiple renewal cycles to ensure the semaphore session stays renewed.
Task.Delay(TimeSpan.FromSeconds(60)).Wait();
Assert.IsTrue(semaphore.IsHeld);
semaphore.Release();
Assert.IsFalse(semaphore.IsHeld);
semaphore.Destroy();
}
public void Semaphore_OneShot()
{
var client = new ConsulClient();
const string keyName = "test/semaphore/oneshot";
var semaphoreOptions = new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true
};
Assert.Equal(Semaphore.DefaultSemaphoreWaitTime, semaphoreOptions.SemaphoreWaitTime);
semaphoreOptions.SemaphoreWaitTime = TimeSpan.FromMilliseconds(1000);
var semaphorekey = client.Semaphore(semaphoreOptions);
semaphorekey.Acquire(CancellationToken.None);
var another = client.Semaphore(new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true,
SemaphoreWaitTime = TimeSpan.FromMilliseconds(1000)
});
another.Acquire();
var contender = client.Semaphore(new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true,
SemaphoreWaitTime = TimeSpan.FromMilliseconds(1000)
});
var stopwatch = Stopwatch.StartNew();
Exception didExcept = null;
Task.WaitAny(
Task.Run(() =>
{
// Needed because async asserts don't work in sync methods!
try
{
contender.Acquire();
}
catch (Exception e)
{
didExcept = e;
}
}),
Task.Delay((int)(2 * semaphoreOptions.SemaphoreWaitTime.TotalMilliseconds)).ContinueWith((t) => Assert.True(false, "Took too long"))
);
Assert.False(contender.IsHeld, "Contender should have failed to acquire");
Assert.False(stopwatch.ElapsedMilliseconds < semaphoreOptions.SemaphoreWaitTime.TotalMilliseconds);
Assert.IsType <SemaphoreMaxAttemptsReachedException>(didExcept);
semaphorekey.Release();
another.Release();
contender.Destroy();
}
public async Task Semaphore_OneShot()
{
var client = new ConsulClient();
const string keyName = "test/semaphore/oneshot";
var semaphoreOptions = new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true
};
Assert.Equal(Semaphore.DefaultSemaphoreWaitTime, semaphoreOptions.SemaphoreWaitTime);
semaphoreOptions.SemaphoreWaitTime = TimeSpan.FromMilliseconds(1000);
var semaphorekey = client.Semaphore(semaphoreOptions);
await semaphorekey.Acquire(CancellationToken.None);
Assert.True(semaphorekey.IsHeld);
var another = client.Semaphore(new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true,
SemaphoreWaitTime = TimeSpan.FromMilliseconds(1000)
});
await another.Acquire();
Assert.True(another.IsHeld);
Assert.True(semaphorekey.IsHeld);
var contender = client.Semaphore(new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true,
SemaphoreWaitTime = TimeSpan.FromMilliseconds(1000)
});
var stopwatch = Stopwatch.StartNew();
Task.WaitAny(
Task.Run(async() => { await Assert.ThrowsAsync <SemaphoreMaxAttemptsReachedException>(async() => await contender.Acquire()); }),
Task.Delay((int)(2 * semaphoreOptions.SemaphoreWaitTime.TotalMilliseconds)).ContinueWith((t) => Assert.True(false, "Took too long"))
);
Assert.False(contender.IsHeld, "Contender should have failed to acquire");
Assert.False(stopwatch.ElapsedMilliseconds < semaphoreOptions.SemaphoreWaitTime.TotalMilliseconds);
Assert.False(contender.IsHeld);
Assert.True(another.IsHeld);
Assert.True(semaphorekey.IsHeld);
await semaphorekey.Release();
await another.Release();
await contender.Destroy();
}
public async Task Semaphore_OneShot()
{
const string keyName = "test/semaphore/oneshot";
TimeSpan waitTime = TimeSpan.FromMilliseconds(3000);
var semaphoreOptions = new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true
};
semaphoreOptions.SemaphoreWaitTime = waitTime;
var semaphoreKey = _client.Semaphore(semaphoreOptions);
await semaphoreKey.Acquire(CancellationToken.None);
Assert.True(semaphoreKey.IsHeld);
var another = _client.Semaphore(new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true,
SemaphoreWaitTime = waitTime
});
await another.Acquire();
Assert.True(another.IsHeld);
Assert.True(semaphoreKey.IsHeld);
var contender = _client.Semaphore(new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true,
SemaphoreWaitTime = waitTime
});
var stopwatch = Stopwatch.StartNew();
await TimeoutUtils.WithTimeout(
Assert.ThrowsAsync <SemaphoreMaxAttemptsReachedException>(async() => await contender.Acquire()));
Assert.False(contender.IsHeld, "Contender should have failed to acquire");
Assert.False(stopwatch.ElapsedMilliseconds < semaphoreOptions.SemaphoreWaitTime.TotalMilliseconds);
Assert.False(contender.IsHeld);
Assert.True(another.IsHeld);
Assert.True(semaphoreKey.IsHeld);
await semaphoreKey.Release();
await another.Release();
await contender.Destroy();
}
public void Semaphore_OneShot()
{
var client = new ConsulClient();
const string keyName = "test/semaphore/oneshot";
var semaphoreOptions = new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true
};
Assert.Equal(Semaphore.DefaultSemaphoreWaitTime, semaphoreOptions.SemaphoreWaitTime);
semaphoreOptions.SemaphoreWaitTime = TimeSpan.FromMilliseconds(250);
var semaphorekey = client.Semaphore(semaphoreOptions);
semaphorekey.Acquire(CancellationToken.None);
var another = client.Semaphore(new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true,
SemaphoreWaitTime = TimeSpan.FromMilliseconds(250)
});
another.Acquire();
var contender = client.Semaphore(new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true,
SemaphoreWaitTime = TimeSpan.FromMilliseconds(250)
});
Task.WaitAny(Task.Run(() =>
{
Assert.Throws <SemaphoreMaxAttemptsReachedException>(() =>
contender.Acquire()
);
}),
Task.Delay(2 * semaphoreOptions.SemaphoreWaitTime.Milliseconds).ContinueWith((t) => Assert.True(false, "Took too long"))
);
semaphorekey.Release();
another.Release();
contender.Destroy();
}
public void Semaphore_AcquireWaitRelease()
{
var client = new ConsulClient();
const string keyName = "test/semaphore/acquirewaitrelease";
var semaphoreOptions = new SemaphoreOptions(keyName, 1)
{
SessionName = "test_semaphoresession",
SessionTTL = TimeSpan.FromSeconds(10)
};
var semaphore = client.Semaphore(semaphoreOptions);
semaphore.Acquire(CancellationToken.None);
Assert.True(semaphore.IsHeld);
// Wait for multiple renewal cycles to ensure the semaphore session stays renewed.
Task.Delay(TimeSpan.FromSeconds(60)).Wait();
Assert.True(semaphore.IsHeld);
semaphore.Release();
Assert.False(semaphore.IsHeld);
semaphore.Destroy();
}
public void Semaphore_OneShot()
{
var client = new ConsulClient();
const string keyName = "test/semaphore/oneshot";
var semaphoreOptions = new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true
};
Assert.Equal(Semaphore.DefaultSemaphoreWaitTime, semaphoreOptions.SemaphoreWaitTime);
semaphoreOptions.SemaphoreWaitTime = TimeSpan.FromMilliseconds(1000);
var semaphorekey = client.Semaphore(semaphoreOptions);
semaphorekey.Acquire(CancellationToken.None);
var another = client.Semaphore(new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true,
SemaphoreWaitTime = TimeSpan.FromMilliseconds(1000)
});
another.Acquire();
var contender = client.Semaphore(new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true,
SemaphoreWaitTime = TimeSpan.FromMilliseconds(1000)
});
var stopwatch = Stopwatch.StartNew();
Exception didExcept = null;
Task.WaitAny(
Task.Run(() =>
{
// Needed because async asserts don't work in sync methods!
try
{
contender.Acquire();
}
catch (Exception e)
{
didExcept = e;
}
}),
Task.Delay((int)(2 * semaphoreOptions.SemaphoreWaitTime.TotalMilliseconds)).ContinueWith((t) => Assert.True(false, "Took too long"))
);
Assert.False(contender.IsHeld, "Contender should have failed to acquire");
Assert.False(stopwatch.ElapsedMilliseconds < semaphoreOptions.SemaphoreWaitTime.TotalMilliseconds);
Assert.IsType<SemaphoreMaxAttemptsReachedException>(didExcept);
semaphorekey.Release();
another.Release();
contender.Destroy();
}
public void Semaphore_OneShot()
{
var client = new ConsulClient();
const string keyName = "test/semaphore/oneshot";
var semaphoreOptions = new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true
};
Assert.Equal(Semaphore.DefaultSemaphoreWaitTime, semaphoreOptions.SemaphoreWaitTime);
semaphoreOptions.SemaphoreWaitTime = TimeSpan.FromMilliseconds(250);
var semaphorekey = client.Semaphore(semaphoreOptions);
semaphorekey.Acquire(CancellationToken.None);
var another = client.Semaphore(new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true,
SemaphoreWaitTime = TimeSpan.FromMilliseconds(250)
});
another.Acquire();
var contender = client.Semaphore(new SemaphoreOptions(keyName, 2)
{
SemaphoreTryOnce = true,
SemaphoreWaitTime = TimeSpan.FromMilliseconds(250)
});
Task.WaitAny(Task.Run(() =>
{
Assert.Throws<LockMaxAttemptsReachedException>(() =>
contender.Acquire()
);
}),
Task.Delay(2 * semaphoreOptions.SemaphoreWaitTime.Milliseconds).ContinueWith((t) => Assert.True(false, "Took too long"))
);
semaphorekey.Release();
contender.Acquire();
contender.Release();
another.Release();
contender.Destroy();
}
public Task ExecuteInSemaphore(SemaphoreOptions opts, Action a, CancellationToken ct = default)
{
throw new NotImplementedException();
}
public Task <IDistributedSemaphore> AcquireSemaphore(SemaphoreOptions opts, CancellationToken ct = default)
{
throw new NotImplementedException();
}
public IDistributedSemaphore Semaphore(SemaphoreOptions opts)
{
throw new NotImplementedException();
}
public void Semaphore_AcquireWaitRelease()
{
var semaphoreOptions = new SemaphoreOptions("test/semaphore", 1)
{
SessionName = "test_semaphoresession",
SessionTTL = TimeSpan.FromSeconds(10)
};
var c = ClientTest.MakeClient();
var s = c.Semaphore(semaphoreOptions);
s.Acquire(CancellationToken.None);
Assert.IsTrue(s.IsHeld);
// Wait for multiple renewal cycles to ensure the semaphore session stays renewed.
Task.Delay(TimeSpan.FromSeconds(60)).Wait();
Assert.IsTrue(s.IsHeld);
s.Release();
Assert.IsFalse(s.IsHeld);
s.Destroy();
}
