icdsystems/ICD.Common.Utils
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fix: Fix threading issue in EnumUtils cache

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This commit is contained in:
Drew Tingen
2020-12-13 16:16:57 -05:00
committed by Chris Cameron
parent f9a8be85d6
commit 9819c44dcc
1 changed files with 9 additions and 3 deletions
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12
ICD.Common.Utils/EnumUtils.cs
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@@ -15,7 +15,10 @@ namespace ICD.Common.Utils
public static class EnumUtils
{
private static readonly Dictionary<Type, object[]> s_EnumValuesCache;
private static readonly SafeCriticalSection s_EnumValuesCacheSection;
private static readonly Dictionary<Type, Dictionary<object, object[]>> s_EnumFlagsCache;
private static readonly SafeCriticalSection s_EnumFlagsCacheSection;
/// <summary>
/// Static constructor.
@@ -23,7 +26,9 @@ namespace ICD.Common.Utils
static EnumUtils()
{
s_EnumValuesCache = new Dictionary<Type, object[]>();
s_EnumValuesCacheSection = new SafeCriticalSection();
s_EnumFlagsCache = new Dictionary<Type, Dictionary<object, object[]>>();
s_EnumFlagsCacheSection = new SafeCriticalSection();
}
#region Validation
@@ -59,6 +64,7 @@ namespace ICD.Common.Utils
/// <returns></returns>
public static bool IsEnum<T>(T value)
{
// ReSharper disable once CompareNonConstrainedGenericWithNull
return value != null && IsEnumType(value.GetType());
}
@@ -168,7 +174,7 @@ namespace ICD.Common.Utils
throw new ArgumentNullException("type");
// Reflection is slow and this method is called a lot, so we cache the results.
return s_EnumValuesCache.GetOrAddNew(type, () => GetValuesUncached(type).ToArray());
return s_EnumValuesCacheSection.Execute(() => s_EnumValuesCache.GetOrAddNew(type, () => GetValuesUncached(type).ToArray()));
}
/// <summary>
@@ -346,10 +352,10 @@ namespace ICD.Common.Utils
/// <returns></returns>
public static IEnumerable<object> GetFlags(Type type, object value)
{
return s_EnumFlagsCache.GetOrAddNew(type, () => new Dictionary<object, object[]>())
return s_EnumFlagsCacheSection.Execute(() => s_EnumFlagsCache.GetOrAddNew(type, () => new Dictionary<object, object[]>())
.GetOrAddNew(value, () => GetValues(type)
.Where(f => HasFlag(value, f))
.ToArray());
.ToArray()));
}
/// <summary>