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[release/7.0] Fix WebProxy Race Condition Issue #75246

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Merged
carlossanlop merged 5 commits into from
Sep 9, 2022
Merged

[release/7.0] Fix WebProxy Race Condition Issue #75246

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5d128fe
Update: Fix Race Condition Issue
liveans Sep 7, 2022
d6329ff
Update: Review changes
liveans Sep 7, 2022
3bd7522
Update: Review change
liveans Sep 7, 2022
1ea41d9
Update: Add comment to volatile field
liveans Sep 8, 2022
489303f
Update src/libraries/System.Net.WebProxy/src/System/Net/WebProxy.cs
liveans Sep 8, 2022
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Update: Review changes
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@liveans
liveans authored and github-actions committed Sep 8, 2022
commit d6329ff138ab2342685166a22ffa9774c7fd8759
18 changes: 16 additions & 2 deletions src/libraries/System.Net.WebProxy/src/System/Net/WebProxy.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@
using System.Globalization;
using System.Runtime.Serialization;
using System.Text.RegularExpressions;
using System.Threading;

namespace System.Net
{
Expand Down Expand Up @@ -127,9 +128,9 @@ public bool UseDefaultCredentials

private void UpdateRegexList()
{
Regex[]? regexBypassList = null;
if (_bypassList is ChangeTrackingArrayList bypassList)
{
Regex[]? regexBypassList = null;
if (bypassList.Count > 0)
{
regexBypassList = new Regex[bypassList.Count];
Expand Down Expand Up @@ -223,7 +224,20 @@ public ChangeTrackingArrayList() { }

public ChangeTrackingArrayList(ICollection c) : base(c) { }

public bool IsChanged { get; set; }
private volatile bool _isChanged;

public bool IsChanged
{
get
{
return _isChanged;
}

set
{
_isChanged = value;
}
}

// Override the methods that can add, remove, or change the regexes in the bypass list.
// Methods that only read (like CopyTo, BinarySearch, etc.) and methods that reorder
Expand Down