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Change exception type thrown by semaphore

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Noi 2020-10-24 22:46:53 -07:00
parent b6551eec2e
commit a631f55a37
1 changed files with 12 additions and 3 deletions
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15
BackgroundServices/DataRetention.cs
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@ -1,5 +1,6 @@
using BirthdayBot.Data;
using NpgsqlTypes;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
@ -28,9 +29,17 @@ namespace BirthdayBot.BackgroundServices
return;
}
// A semaphore is used to restrict this work being done concurrently on other shards
// to avoid putting pressure on the SQL connection pool. Updating this is a low priority.
await _updateLock.WaitAsync(token).ConfigureAwait(false);
try
{
// A semaphore is used to restrict this work being done concurrently on other shards
// to avoid putting pressure on the SQL connection pool. Updating this is a low priority.
await _updateLock.WaitAsync(token).ConfigureAwait(false);
}
catch (OperationCanceledException)
{
// Calling thread does not expect the exception that SemaphoreSlim throws...
throw new TaskCanceledException();
}
try
{
// Build a list of all values to update