[
https://issues.apache.org/jira/browse/THRIFT-4449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
boxcppguy updated THRIFT-4449:
------------------------------
Description:
What we observed is, when using the C# implementation TNamedPipeServerTransport
along with TSimpleServer, if you call TSimpleServer.Stop too quickly after
TSimpleServer.Serve, the call to evt.WaitOne in
TNamedPipeServerTransport.AcceptImpl will block indefinitely because the lambda
passed into BeginWaitForConnection is never executed and evt.Set will never get
called. We saw this in 0.9.3 but it's suspected to be in 0.11.0 as well.
{noformat}
// in server wrapper class MyServer
this.serverThread = new Thread(() =>
{
var processor = new MyProcessor();
var transport = new TNamedPipeServerTransport("MyPipeName");
var svr = new TSimpleServer(processor, transport);
lock (this.serverLock)
{
this.server = svr;
}
svr.Serve(); // This sometimes will not return
})
{
IsBackground = true
};
this.serverThread.Start();
{noformat}
{noformat}
// server wrapper class MyServer
protected virtual void Dispose(bool disposing)
{
lock (this.serverLock)
{
try
{
if (this.server != null)
{
this.server.Stop();
}
if (this.serverThread != null)
{
this.serverThread.Join(); // This will wait indefinitely
waiting for Serve to complete
}
}
finally
{
this.server = null;
this.serverThread = null;
}
}
}
{noformat}
{noformat}
// test code
for (int i = 0; i < 100; ++i)
{
using (var server = new MyServer())
{
server.Start();
}
}
{noformat}
was:
What we observed is, when using the C# implementation TNamedPipeServerTransport
along with TSimpleServer, if you call TSimpleServer.Stop too quickly after
TSimpleServer.Serve, the call to evt.WaitOne in
TNamedPipeServerTransport.AcceptImpl will block indefinitely because the lambda
passed into BeginWaitForConnection is never executed and evt.Set() will never
get called. We saw this in 0.9.3 but it's suspected to be in 0.11.0 as well.
{noformat}
// in server wrapper class MyServer
this.serverThread = new Thread(() =>
{
var processor = new MyProcessor();
var transport = new TNamedPipeServerTransport("MyPipeName");
var svr = new TSimpleServer(processor, transport);
lock (this.serverLock)
{
this.server = svr;
}
svr.Serve(); // This sometimes will not return
})
{
IsBackground = true
};
this.serverThread.Start();
{noformat}
{noformat}
// server wrapper class MyServer
protected virtual void Dispose(bool disposing)
{
lock (this.serverLock)
{
try
{
if (this.server != null)
{
this.server.Stop();
}
if (this.serverThread != null)
{
this.serverThread.Join(); // This will wait indefinitely
waiting for Serve to complete
}
}
finally
{
this.server = null;
this.serverThread = null;
}
}
}
{noformat}
{noformat}
// test code
for (int i = 0; i < 100; ++i)
{
using (var server = new MyServer())
{
server.Start();
}
}
{noformat}
> C# - TNamedPipeServerTransport.AcceptImpl can block indefinitely if
> TNamedPipeServerTransport.Close is called too quickly
> -------------------------------------------------------------------------------------------------------------------------
>
> Key: THRIFT-4449
> URL: https://issues.apache.org/jira/browse/THRIFT-4449
> Project: Thrift
> Issue Type: Bug
> Components: C# - Library
> Affects Versions: 0.9.3
> Environment: Windows 10.0.16299 64bit
> Reporter: boxcppguy
>
> What we observed is, when using the C# implementation
> TNamedPipeServerTransport along with TSimpleServer, if you call
> TSimpleServer.Stop too quickly after TSimpleServer.Serve, the call to
> evt.WaitOne in TNamedPipeServerTransport.AcceptImpl will block indefinitely
> because the lambda passed into BeginWaitForConnection is never executed and
> evt.Set will never get called. We saw this in 0.9.3 but it's suspected to be
> in 0.11.0 as well.
> {noformat}
> // in server wrapper class MyServer
> this.serverThread = new Thread(() =>
> {
> var processor = new MyProcessor();
> var transport = new TNamedPipeServerTransport("MyPipeName");
> var svr = new TSimpleServer(processor, transport);
> lock (this.serverLock)
> {
> this.server = svr;
> }
> svr.Serve(); // This sometimes will not return
> })
> {
> IsBackground = true
> };
> this.serverThread.Start();
> {noformat}
> {noformat}
> // server wrapper class MyServer
> protected virtual void Dispose(bool disposing)
> {
> lock (this.serverLock)
> {
> try
> {
> if (this.server != null)
> {
> this.server.Stop();
> }
> if (this.serverThread != null)
> {
> this.serverThread.Join(); // This will wait indefinitely
> waiting for Serve to complete
> }
> }
> finally
> {
> this.server = null;
> this.serverThread = null;
> }
> }
> }
> {noformat}
> {noformat}
> // test code
> for (int i = 0; i < 100; ++i)
> {
> using (var server = new MyServer())
> {
> server.Start();
> }
> }
> {noformat}
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