public async Task TryLockNextInstanceAsync_AnyQueue()
{
var taskHubClient = _host.Services.GetService <TaskHubClient>();
await taskHubClient.PurgeOrchestrationInstanceHistoryAsync(
DateTime.UtcNow,
OrchestrationStateTimeRangeFilterType.OrchestrationCreatedTimeFilter);
for (var i = 1; i <= 4; i++)
{
await taskHubClient.CreateOrchestrationInstanceAsync($"o{i}", "", $"i{i}", null);
}
var dbContextFactory = _host.Services.GetService <Func <OrchestrationDbContext> >();
var dbContextExtensions = _host.Services.GetService <OrchestrationDbContextExtensions>();
using var dbContextDispenser = new DbContextDispenser(dbContextFactory);
var lockTimeout = TimeSpan.FromMinutes(1);
var instance1 = await dbContextExtensions.TryLockNextInstanceAsync(dbContextDispenser.Get(), lockTimeout);
var instance2 = await dbContextExtensions.TryLockNextInstanceAsync(dbContextDispenser.Get(), lockTimeout);
var instance3 = await dbContextExtensions.TryLockNextInstanceAsync(dbContextDispenser.Get(), lockTimeout);
var instance4 = await dbContextExtensions.TryLockNextInstanceAsync(dbContextDispenser.Get(), lockTimeout);
var instanceNull = await dbContextExtensions.TryLockNextInstanceAsync(dbContextDispenser.Get(), lockTimeout);
instance1.Should().NotBeNull();
instance1.InstanceId.Should().Be("i1");
instance2.Should().NotBeNull();
instance2.InstanceId.Should().Be("i2");
instance3.Should().NotBeNull();
instance3.InstanceId.Should().Be("i3");
instance4.Should().NotBeNull();
instance4.InstanceId.Should().Be("i4");
instanceNull.Should().BeNull();
}
public async Task TryLockNextInstanceAsync_SpecificQueues()
{
var taskHubClient = _host.Services.GetService <TaskHubClient>();
await taskHubClient.PurgeOrchestrationInstanceHistoryAsync(
DateTime.UtcNow,
OrchestrationStateTimeRangeFilterType.OrchestrationCreatedTimeFilter);
await taskHubClient.CreateOrchestrationInstanceAsync($"o1", "", $"i1", null);
await taskHubClient.CreateOrchestrationInstanceAsync($"o2", "", $"i2", null);
await taskHubClient.CreateOrchestrationInstanceAsync($"o3", "", $"i3", null);
await taskHubClient.CreateOrchestrationInstanceAsync($"o1", "", $"i4", null);
await taskHubClient.CreateOrchestrationInstanceAsync($"o2", "", $"i5", null);
await taskHubClient.CreateOrchestrationInstanceAsync($"o3", "", $"i6", null);
await taskHubClient.CreateOrchestrationInstanceAsync($"o1", "", $"i7", null);
await taskHubClient.CreateOrchestrationInstanceAsync($"o2", "", $"i8", null);
await taskHubClient.CreateOrchestrationInstanceAsync($"o3", "", $"i9", null);
var dbContextFactory = _host.Services.GetService <Func <OrchestrationDbContext> >();
var dbContextExtensions = _host.Services.GetService <OrchestrationDbContextExtensions>();
using var dbContextDispenser = new DbContextDispenser(dbContextFactory);
var lockTimeout = TimeSpan.FromMinutes(1);
var instance3 = await dbContextExtensions.TryLockNextInstanceAsync(dbContextDispenser.Get(), new[] { "o3" }, lockTimeout);
var instance2 = await dbContextExtensions.TryLockNextInstanceAsync(dbContextDispenser.Get(), new[] { "o2" }, lockTimeout);
var instance1 = await dbContextExtensions.TryLockNextInstanceAsync(dbContextDispenser.Get(), new[] { "o1" }, lockTimeout);
var instance4 = await dbContextExtensions.TryLockNextInstanceAsync(dbContextDispenser.Get(), new[] { "o1" }, lockTimeout);
var instance5 = await dbContextExtensions.TryLockNextInstanceAsync(dbContextDispenser.Get(), new[] { "o2" }, lockTimeout);
var instance6 = await dbContextExtensions.TryLockNextInstanceAsync(dbContextDispenser.Get(), new[] { "o3" }, lockTimeout);
var instance7 = await dbContextExtensions.TryLockNextInstanceAsync(dbContextDispenser.Get(), new[] { "o1", "o2", "o3" }, lockTimeout);
var instance8 = await dbContextExtensions.TryLockNextInstanceAsync(dbContextDispenser.Get(), new[] { "o1", "o2", "o3" }, lockTimeout);
var instance9 = await dbContextExtensions.TryLockNextInstanceAsync(dbContextDispenser.Get(), new[] { "o1", "o2", "o3" }, lockTimeout);
var instanceNull = await dbContextExtensions.TryLockNextInstanceAsync(dbContextDispenser.Get(), new[] { "o1", "o2", "o3" }, lockTimeout);
instance1.Should().NotBeNull();
instance1.InstanceId.Should().Be("i1");
instance2.Should().NotBeNull();
instance2.InstanceId.Should().Be("i2");
instance3.Should().NotBeNull();
instance3.InstanceId.Should().Be("i3");
instance4.Should().NotBeNull();
instance4.InstanceId.Should().Be("i4");
instance5.Should().NotBeNull();
instance5.InstanceId.Should().Be("i5");
instance6.Should().NotBeNull();
instance6.InstanceId.Should().Be("i6");
instance7.Should().NotBeNull();
instance7.InstanceId.Should().Be("i7");
instance8.Should().NotBeNull();
instance8.InstanceId.Should().Be("i8");
instance9.Should().NotBeNull();
instance9.InstanceId.Should().Be("i9");
instanceNull.Should().BeNull();
}
