54 lines
1.5 KiB
Transact-SQL
54 lines
1.5 KiB
Transact-SQL
CREATE OR ALTER PROCEDURE dbo.CharacterEnrichmentRun_ClaimNext
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@LeaseMinutes int = 90
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AS
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BEGIN
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SET NOCOUNT ON;
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SET XACT_ABORT ON;
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DECLARE @RunID int;
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BEGIN TRANSACTION;
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SELECT TOP (1) @RunID = CharacterEnrichmentRunID
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FROM dbo.CharacterEnrichmentRuns WITH (UPDLOCK, HOLDLOCK)
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WHERE IsCurrent = 1
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AND (
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Status = N'Queued'
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OR (Status = N'Running' AND StartedUtc < DATEADD(minute, -ABS(@LeaseMinutes), SYSUTCDATETIME()))
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)
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ORDER BY QueuedUtc, CharacterEnrichmentRunID;
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IF @RunID IS NULL
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BEGIN
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COMMIT TRANSACTION;
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SELECT TOP (0) * FROM dbo.CharacterEnrichmentRuns;
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RETURN;
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END;
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UPDATE dbo.CharacterEnrichmentRuns
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SET Status = N'Running',
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StartedUtc = SYSUTCDATETIME(),
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AttemptCount = AttemptCount + 1,
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CurrentStage = N'Preparing character analysis',
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CurrentMessage = N'Preparing character analysis...',
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UpdatedUtc = SYSUTCDATETIME()
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WHERE CharacterEnrichmentRunID = @RunID
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AND IsCurrent = 1
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AND (
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Status = N'Queued'
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OR (Status = N'Running' AND StartedUtc < DATEADD(minute, -ABS(@LeaseMinutes), SYSUTCDATETIME()))
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);
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IF @@ROWCOUNT = 0
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BEGIN
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COMMIT TRANSACTION;
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SELECT TOP (0) * FROM dbo.CharacterEnrichmentRuns;
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RETURN;
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END;
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SELECT * FROM dbo.CharacterEnrichmentRuns WHERE CharacterEnrichmentRunID = @RunID;
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COMMIT TRANSACTION;
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END;
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GO
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