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[browser][MT] dedicated io thread #99422

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merged 9 commits into from
Mar 14, 2024
Merged

[browser][MT] dedicated io thread #99422

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04fac31
wip
pavelsavara Mar 14, 2024
3e80e32
tests
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27066ca
Update src/libraries/System.Runtime.InteropServices.JavaScript/src/Sy…
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Update src/libraries/System.Runtime.InteropServices.JavaScript/src/Sy…
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Update src/mono/browser/runtime/multi-threading.md
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3 changes: 3 additions & 0 deletions eng/testing/WasmRunnerTemplate.cmd
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Expand Up @@ -59,6 +59,9 @@ if /I [%XHARNESS_COMMAND%] == [test] (
if [%BROWSER_PATH%] == [] if not [%HELIX_CORRELATION_PAYLOAD%] == [] (
set "BROWSER_PATH=--browser-path^=%HELIX_CORRELATION_PAYLOAD%\chrome-win\chrome.exe"
)
if [%JS_ENGINE_ARGS%] == [] (
set "JS_ENGINE_ARGS=--browser-arg^=--js-flags^=--stack-trace-limit^=1000"
)
)

if [%XHARNESS_ARGS%] == [] (
Expand Down
4 changes: 4 additions & 0 deletions eng/testing/WasmRunnerTemplate.sh
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Expand Up @@ -58,6 +58,10 @@ if [[ "$XHARNESS_COMMAND" == "test" ]]; then
fi
fi
fi
else
if [[ -z "$JS_ENGINE_ARGS" ]]; then
JS_ENGINE_ARGS="--browser-arg=--js-flags=--stack-trace-limit=1000"
fi
fi

if [[ -z "$XHARNESS_ARGS" ]]; then
Expand Down
1 change: 0 additions & 1 deletion eng/testing/tests.browser.targets
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Expand Up @@ -87,7 +87,6 @@
<_AppArgs Condition="'$(IsFunctionalTest)' != 'true' and '$(WasmMainAssemblyFileName)' != ''">--run $(WasmMainAssemblyFileName)</_AppArgs>
<_AppArgs Condition="'$(IsFunctionalTest)' == 'true'">--run $(AssemblyName).dll</_AppArgs>

<_XUnitBackgroundExec Condition="'$(_XUnitBackgroundExec)' == '' and '$(WasmEnableThreads)' == 'true'">true</_XUnitBackgroundExec>
<WasmTestAppArgs Condition="'$(_XUnitBackgroundExec)' == 'true'">$(WasmTestAppArgs) -backgroundExec</WasmTestAppArgs>
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<WasmXHarnessMonoArgs Condition="'$(_XUnitBackgroundExec)' == 'true'">$(WasmXHarnessMonoArgs) --setenv=IsWasmBackgroundExec=true</WasmXHarnessMonoArgs>
<_AppArgs Condition="'$(WasmTestAppArgs)' != ''">$(_AppArgs) $(WasmTestAppArgs)</_AppArgs>
Expand Down
2 changes: 1 addition & 1 deletion src/libraries/System.Net.Http/src/System/Net/Http/BrowserHttpHandler/BrowserHttpInterop.cs
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Expand Up @@ -147,7 +147,7 @@ public static async Task CancellationHelper(Task promise, CancellationToken canc
}
}, (promise, jsController)))
{
await promise.ConfigureAwait(true);
await promise.ConfigureAwait(false);
}
}
catch (OperationCanceledException oce) when (cancellationToken.IsCancellationRequested)
Expand Down
2 changes: 1 addition & 1 deletion ...raries/System.Private.Xml/tests/XmlSchema/XmlSchemaSet/TC_SchemaSet_AllowXmlAttributes.cs
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Expand Up @@ -273,7 +273,7 @@ public void v1(string xmlFile, string xsdFile, bool allowXmlAttributes, int expe
if (xsdFile != null)
xss.Add(null, Path.Combine(testData, xsdFile));

XmlReader vr = CreateReader(Path.Combine(testData, xmlFile), xss, allowXmlAttributes);
using XmlReader vr = CreateReader(Path.Combine(testData, xmlFile), xss, allowXmlAttributes);
while (vr.Read()) ;

Assert.Equal(warningCount, expectedWarningCount);
Expand Down
2 changes: 1 addition & 1 deletion src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaSet/TC_SchemaSet_EnableUpaCheck.cs
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Expand Up @@ -146,7 +146,7 @@ public void v1(object param0, object param1, object param2, int[] expectedErrorL
xss.ValidationEventHandler += new ValidationEventHandler(ValidationCallback);
xss.Add(null, Path.Combine(testData, xsdFile));

XmlReader vr = CreateReader(Path.Combine(testData, xmlFile), xss, false);
using XmlReader vr = CreateReader(Path.Combine(testData, xmlFile), xss, false);
while (vr.Read()) ;

CError.Compare(errorCount, expectedErrorCount, "Error Count mismatch");
Expand Down
14 changes: 7 additions & 7 deletions src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaSet/TC_SchemaSet_Misc.cs
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Expand Up @@ -89,7 +89,7 @@ public void v2()
XmlSchemaValidationFlags.ProcessInlineSchema;
settings.ValidationEventHandler += new ValidationEventHandler(ValidationCallback);
settings.Schemas.Add(ss);
XmlReader vr = XmlReader.Create(Path.Combine(TestData._Root, "bug115049.xml"), settings);
using XmlReader vr = XmlReader.Create(Path.Combine(TestData._Root, "bug115049.xml"), settings);
while (vr.Read()) ;
CError.Compare(errorCount, 1, "Error Count mismatch!");
return;
Expand All @@ -108,7 +108,7 @@ public void v4()
XmlSchemaValidationFlags.ProcessSchemaLocation |
XmlSchemaValidationFlags.ProcessInlineSchema;
settings.ValidationEventHandler += new ValidationEventHandler(ValidationCallback);
XmlReader vr = XmlReader.Create(new StringReader(xml), settings, (string)null);
using XmlReader vr = XmlReader.Create(new StringReader(xml), settings, (string)null);
while (vr.Read()) ;
CError.Compare(errorCount, 0, "Error Count mismatch!");
CError.Compare(warningCount, 1, "Warning Count mismatch!");
Expand Down Expand Up @@ -531,7 +531,7 @@ public void v106()
#pragma warning disable 0618
settings.ProhibitDtd = false;
#pragma warning restore 0618
XmlReader r = XmlReader.Create(Path.Combine(TestData._Root, "XMLSchema.xsd"), settings);
using XmlReader r = XmlReader.Create(Path.Combine(TestData._Root, "XMLSchema.xsd"), settings);
ss1.Add(null, r);
ss1.Compile();

Expand Down Expand Up @@ -568,7 +568,7 @@ public void v107()
settings.Schemas.Add(schemaSet);
settings.ValidationEventHandler += new ValidationEventHandler(ValidationCallback);
settings.ValidationType = ValidationType.Schema;
XmlReader vr = XmlReader.Create(new StringReader(strXml), settings);
using XmlReader vr = XmlReader.Create(new StringReader(strXml), settings);

while (vr.Read()) ;

Expand Down Expand Up @@ -742,7 +742,7 @@ public void v112()
XmlSchema mainSchema = set.Add(null, Path.Combine(TestData._Root, "bug382035a.xsd"));
set.Compile();

XmlReader r = XmlReader.Create(Path.Combine(TestData._Root, "bug382035a1.xsd"));
using XmlReader r = XmlReader.Create(Path.Combine(TestData._Root, "bug382035a1.xsd"));
XmlSchema reParsedInclude = XmlSchema.Read(r, new ValidationEventHandler(ValidationCallback));

((XmlSchemaExternal)mainSchema.Includes[0]).Schema = reParsedInclude;
Expand All @@ -766,7 +766,7 @@ public void v113()
settings.ValidationFlags |= XmlSchemaValidationFlags.ReportValidationWarnings | XmlSchemaValidationFlags.ProcessSchemaLocation;
settings.ValidationEventHandler += new ValidationEventHandler(ValidationCallback);
settings.ValidationType = ValidationType.Schema;
XmlReader vr = XmlReader.Create(new StringReader(strXml), settings);
using XmlReader vr = XmlReader.Create(new StringReader(strXml), settings);

while (vr.Read()) ;

Expand Down Expand Up @@ -1056,7 +1056,7 @@ public void Dev10_40509()
string xsd = Path.Combine(TestData._Root, "bug511217.xsd");
XmlSchemaSet s = new XmlSchemaSet();
s.XmlResolver = new XmlUrlResolver();
XmlReader r = XmlReader.Create(xsd);
using XmlReader r = XmlReader.Create(xsd);
s.Add(null, r);
s.Compile();
XmlReaderSettings rs = new XmlReaderSettings();
Expand Down
2 changes: 1 addition & 1 deletion src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaSet/TC_SchemaSet_NmTokens.cs
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Expand Up @@ -30,7 +30,7 @@ public void TestSchemaCompile(string fileName, bool negative)
Assert.True(negative, args.Message);
numevents++;
};
XmlReader r = XmlReader.Create(xsd);
using XmlReader r = XmlReader.Create(xsd);
s.Add(null, r);
s.Compile();
Assert.False(negative && numevents != 1);
Expand Down
28 changes: 14 additions & 14 deletions src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaSet/TC_SchemaSet_ProhibitDTD.cs
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Expand Up @@ -149,7 +149,7 @@ public void v2()
Initialize();
XmlSchemaSet xss = new XmlSchemaSet();
xss.ValidationEventHandler += ValidationCallback;
XmlReader r = CreateReader(Path.Combine(TestData._Root, "bug356711_a.xsd"));
using XmlReader r = CreateReader(Path.Combine(TestData._Root, "bug356711_a.xsd"));
try
{
xss.Add(null, r);
Expand Down Expand Up @@ -190,7 +190,7 @@ public void v4()
XmlSchemaSet xss = new XmlSchemaSet();
xss.XmlResolver = new XmlUrlResolver();
xss.ValidationEventHandler += ValidationCallback;
XmlReader r = CreateReader(Path.Combine(TestData._Root, "bug356711.xsd"));
using XmlReader r = CreateReader(Path.Combine(TestData._Root, "bug356711.xsd"));
try
{
xss.Add(null, r);
Expand Down Expand Up @@ -314,7 +314,7 @@ public void v10(object param0)
xss.XmlResolver = new XmlUrlResolver();
xss.ValidationEventHandler += ValidationCallback;

XmlReader r = CreateReader(Path.Combine(TestData._Root, param0.ToString()), false);
using XmlReader r = CreateReader(Path.Combine(TestData._Root, param0.ToString()), false);
try
{
xss.Add(null, r);
Expand Down Expand Up @@ -363,8 +363,8 @@ public void v12(object param0)
XmlSchemaSet xss = new XmlSchemaSet();
xss.ValidationEventHandler += ValidationCallback;

XmlReader r = CreateReader(Path.Combine(TestData._Root, param0.ToString()), false);
XmlReader r2 = CreateReader(r, true);
using XmlReader r = CreateReader(Path.Combine(TestData._Root, param0.ToString()), false);
using XmlReader r2 = CreateReader(r, true);
try
{
xss.Add(null, r2);
Expand All @@ -387,8 +387,8 @@ public void v13(object param0)
xss.XmlResolver = new XmlUrlResolver();
xss.ValidationEventHandler += ValidationCallback;

XmlReader r = CreateReader(Path.Combine(TestData._Root, param0.ToString()), false);
XmlReader r2 = CreateReader(r, true);
using XmlReader r = CreateReader(Path.Combine(TestData._Root, param0.ToString()), false);
using XmlReader r2 = CreateReader(r, true);

try
{
Expand All @@ -413,7 +413,7 @@ public void v14()
xss.XmlResolver = new XmlUrlResolver();
xss.ValidationEventHandler += ValidationCallback;

XmlReader r = CreateReader(Path.Combine(TestData._Root, "bug356711.xsd"), false);
using XmlReader r = CreateReader(Path.Combine(TestData._Root, "bug356711.xsd"), false);

try
{
Expand All @@ -437,8 +437,8 @@ public void v15()
XmlSchemaSet xss = new XmlSchemaSet();
xss.ValidationEventHandler += ValidationCallback;

XmlReader r1 = CreateReader(Path.Combine(TestData._Root, "bug356711_a.xsd"));
XmlReader r2 = CreateReader(Path.Combine(TestData._Root, "bug356711_b.xsd"), false);
using XmlReader r1 = CreateReader(Path.Combine(TestData._Root, "bug356711_a.xsd"));
using XmlReader r2 = CreateReader(Path.Combine(TestData._Root, "bug356711_b.xsd"), false);

try
{
Expand Down Expand Up @@ -482,7 +482,7 @@ public void v20(object param0)

try
{
XmlReader reader = CreateReader(Path.Combine(TestData._Root, param0.ToString()), xss, true);
using XmlReader reader = CreateReader(Path.Combine(TestData._Root, param0.ToString()), xss, true);
while (reader.Read()) ;
}
catch (XmlException)
Expand Down Expand Up @@ -539,7 +539,7 @@ public void v22(object param0)

try
{
XmlReader reader = CreateReader(Path.Combine(TestData._Root, param0.ToString()), xss, false);
using XmlReader reader = CreateReader(Path.Combine(TestData._Root, param0.ToString()), xss, false);
while (reader.Read()) ;
}
catch (XmlException)
Expand All @@ -561,8 +561,8 @@ public void v23()

try
{
XmlReader r1 = CreateReader(Path.Combine(TestData._Root, "bug356711_1.xml"), true);
XmlReader r2 = CreateReader(r1, xss, false);
using XmlReader r1 = CreateReader(Path.Combine(TestData._Root, "bug356711_1.xml"), true);
using XmlReader r2 = CreateReader(r1, xss, false);
while (r2.Read()) ;
}
catch (XmlException)
Expand Down
12 changes: 6 additions & 6 deletions src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaSet/TC_SchemaSet_Reprocess.cs
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Expand Up @@ -560,7 +560,7 @@ public void v51(object param0, object param1, object param2, object param3)
settings.ValidationEventHandler += new ValidationEventHandler(ValidationCallback);
settings.ValidationType = ValidationType.Schema;
settings.Schemas = set;
XmlReader reader = XmlReader.Create(xmlFile, settings);
using XmlReader reader = XmlReader.Create(xmlFile, settings);
while (reader.Read()) { }

CError.Compare(bWarningCallback, false, "Warning count mismatch");
Expand All @@ -581,8 +581,8 @@ public void v51(object param0, object param1, object param2, object param3)
bErrorCallback = false;
_output.WriteLine("Second validation ***************");
settings.Schemas = set;
reader = XmlReader.Create(xmlFile, settings);
while (reader.Read()) { }
using XmlReader reader2 = XmlReader.Create(xmlFile, settings);
while (reader2.Read()) { }

CError.Compare(bWarningCallback, false, "Warning count mismatch");
CError.Compare(bErrorCallback, false, "Error count mismatch");
Expand All @@ -606,8 +606,8 @@ public void v51(object param0, object param1, object param2, object param3)

_output.WriteLine("Third validation, Expecting errors ***************");
settings.Schemas = set;
reader = XmlReader.Create(xmlFile, settings);
while (reader.Read()) { }
using XmlReader reader3 = XmlReader.Create(xmlFile, settings);
while (reader3.Read()) { }

CError.Compare(bWarningCallback, false, "Warning count mismatch");
CError.Compare(bErrorCallback, true, "Error count mismatch");
Expand All @@ -623,7 +623,7 @@ public XmlSchema LoadSchema(string path, string baseuri)
_output.WriteLine("Correct uri: " + correctUri);
using (Stream s = new FileStream(Path.GetFullPath(path), FileMode.Open, FileAccess.Read, FileShare.Read, 1))
{
XmlReader r = XmlReader.Create(s, new XmlReaderSettings(), includeUri);
using XmlReader r = XmlReader.Create(s, new XmlReaderSettings(), includeUri);
_output.WriteLine("Reader uri: " + r.BaseURI);
using (r)
{
Expand Down
2 changes: 1 addition & 1 deletion src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaValidatorApi/PropertiesTests.cs
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Expand Up @@ -306,7 +306,7 @@ public void XmlReaderAsALineInfoProvider()
XmlSchemaInfo info = new XmlSchemaInfo();

XmlSchemaValidator val = CreateValidator(CreateSchemaSetFromXml(xmlSrc));
XmlReader r = XmlReader.Create(new StringReader(xmlSrc));
using XmlReader r = XmlReader.Create(new StringReader(xmlSrc));

val.LineInfoProvider = (r as IXmlLineInfo);

Expand Down
4 changes: 2 additions & 2 deletions src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaValidatorApi/ValidateMisc.cs
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Expand Up @@ -901,7 +901,7 @@ public void XSDValidationGeneratesInvalidError_1()
// TempDirectory path must end with a DirectorySeratorChar, otherwise it will throw in the Xml validation.
settings.Schemas.Add("mainschema", XmlReader.Create(new StringReader(xsd), null, EnsureTrailingSlash(tempDirectory.Path)));
settings.ValidationType = ValidationType.Schema;
XmlReader reader = XmlReader.Create(new StringReader(xml), settings);
using XmlReader reader = XmlReader.Create(new StringReader(xml), settings);
XmlDocument doc = new XmlDocument();

doc.Load(reader);
Expand All @@ -926,7 +926,7 @@ public void XSDValidationGeneratesInvalidError_2()
// TempDirectory path must end with a DirectorySeratorChar, otherwise it will throw in the Xml validation.
settings.Schemas.Add("mainschema", XmlReader.Create(new StringReader(xsd), null, EnsureTrailingSlash(tempDirectory.Path)));
settings.ValidationType = ValidationType.Schema;
XmlReader reader = XmlReader.Create(new StringReader(xml), settings);
using XmlReader reader = XmlReader.Create(new StringReader(xml), settings);
XmlDocument doc = new XmlDocument();

doc.Load(reader);
Expand Down
31 changes: 26 additions & 5 deletions ...ces.JavaScript/src/System/Runtime/InteropServices/JavaScript/Interop/JavaScriptExports.cs
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Expand Up @@ -104,8 +104,8 @@ public static void ReleaseJSOwnedObjectByGCHandle(JSMarshalerArgument* arguments

try
{
// when we arrive here, we are on the thread which owns the proxies
var ctx = arg_exc.AssertCurrentThreadContext();
// when we arrive here, we are on the thread which owns the proxies or on IO thread
var ctx = arg_exc.ToManagedContext;
ctx.ReleaseJSOwnedObjectByGCHandle(arg_1.slot.GCHandle);
}
catch (Exception ex)
Expand All @@ -131,6 +131,11 @@ public static void CallDelegate(JSMarshalerArgument* arguments_buffer)
// we may need to consider how to solve blocking of the synchronous call
// see also https://github.com/dotnet/runtime/issues/76958#issuecomment-1921418290
arg_exc.AssertCurrentThreadContext();

if (JSProxyContext.ThreadBlockingMode == JSHostImplementation.JSThreadBlockingMode.AllowBlockingWaitInAsyncCode)
{
Thread.ThrowOnBlockingWaitOnJSInteropThread = true;
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}
#endif

GCHandle callback_gc_handle = (GCHandle)arg_1.slot.GCHandle;
Expand All @@ -148,8 +153,16 @@ public static void CallDelegate(JSMarshalerArgument* arguments_buffer)
{
arg_exc.ToJS(ex);
}
#if FEATURE_WASM_MANAGED_THREADS
finally
{
if (JSProxyContext.ThreadBlockingMode == JSHostImplementation.JSThreadBlockingMode.AllowBlockingWaitInAsyncCode)
{
Thread.ThrowOnBlockingWaitOnJSInteropThread = false;
}
}
#endif
}

// the marshaled signature is: void CompleteTask<T>(GCHandle holder, Exception? exceptionResult, T? result)
public static void CompleteTask(JSMarshalerArgument* arguments_buffer)
{
Expand All @@ -161,8 +174,8 @@ public static void CompleteTask(JSMarshalerArgument* arguments_buffer)

try
{
// when we arrive here, we are on the thread which owns the proxies
var ctx = arg_exc.AssertCurrentThreadContext();
// when we arrive here, we are on the thread which owns the proxies or on IO thread
var ctx = arg_exc.ToManagedContext;
var holder = ctx.GetPromiseHolder(arg_1.slot.GCHandle);
JSHostImplementation.ToManagedCallback callback;

Expand Down Expand Up @@ -270,6 +283,10 @@ public static void BeforeSyncJSExport(JSMarshalerArgument* arguments_buffer)
{
var ctx = arg_exc.AssertCurrentThreadContext();
ctx.IsPendingSynchronousCall = true;
if (JSProxyContext.ThreadBlockingMode == JSHostImplementation.JSThreadBlockingMode.AllowBlockingWaitInAsyncCode)
{
Thread.ThrowOnBlockingWaitOnJSInteropThread = true;
}
}
catch (Exception ex)
{
Expand All @@ -288,6 +305,10 @@ public static void AfterSyncJSExport(JSMarshalerArgument* arguments_buffer)
{
var ctx = arg_exc.AssertCurrentThreadContext();
ctx.IsPendingSynchronousCall = false;
if (JSProxyContext.ThreadBlockingMode == JSHostImplementation.JSThreadBlockingMode.AllowBlockingWaitInAsyncCode)
{
Thread.ThrowOnBlockingWaitOnJSInteropThread = false;
}
}
catch (Exception ex)
{
Expand Down
4 changes: 4 additions & 0 deletions ...es.JavaScript/src/System/Runtime/InteropServices/JavaScript/JSHostImplementation.Types.cs
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Expand Up @@ -72,6 +72,8 @@ public enum MainThreadingMode : int
UIThread = 0,
// Running the managed main thread on dedicated WebWorker. Marshaling all JavaScript calls to and from the main thread.
DeputyThread = 1,
// TODO comments
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DeputyAndIOThreads = 2,
}

// keep in sync with types\internal.ts
Expand All @@ -80,6 +82,8 @@ public enum JSThreadBlockingMode : int
// throw PlatformNotSupportedException if blocking .Wait is called on threads with JS interop, like JSWebWorker and Main thread.
// Avoids deadlocks (typically with pending JS promises on the same thread) by throwing exceptions.
NoBlockingWait = 0,
// TODO comments
AllowBlockingWaitInAsyncCode = 1,
// allow .Wait on all threads.
// Could cause deadlocks with blocking .Wait on a pending JS Task/Promise on the same thread or similar Task/Promise chain.
AllowBlockingWait = 100,
Expand Down
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