Socket available bytes check: add a disposal guard #1836
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This prevents a disposal race from killing us in connection phases and such, protected against in the counters above in Unofficial (see https://github.com/mgravell/Pipelines.Sockets.Unofficial/blob/19b141f30fe2485dd79993be0ac87a9fc6b34b74/src/Pipelines.Sockets.Unofficial/SocketConnection.cs#L235) but not here - adding the same protection guard. Stack trace of such an error: ``` ----- Inner Stack Trace ----- at System.Runtime.InteropServices.SafeHandle.DangerousAddRef(Boolean& success) at System.StubHelpers.StubHelpers.SafeHandleAddRef(SafeHandle pHandle, Boolean& success) at Interop.Winsock.ioctlsocket(SafeSocketHandle socketHandle, Int32 cmd, Int32& argp) at System.Net.Sockets.SocketPal.GetAvailable(SafeSocketHandle handle, Int32& available) at System.Net.Sockets.Socket.get_Available() at StackExchange.Redis.PhysicalConnection.GetSocketBytes(Int64& readCount, Int64& writeCount) in /_/src/StackExchange.Redis/PhysicalConnection.cs:line 1250 at StackExchange.Redis.PhysicalBridge.GetOutstandingCount(Int32& inst, Int32& qs, Int64& in, Int32& qu, Boolean& aw, Int64& toRead, Int64& toWrite, BacklogStatus& bs, ReadStatus& rs, WriteStatus& ws) in /_/src/StackExchange.Redis/PhysicalBridge.cs:line 304 at StackExchange.Redis.ConnectionMultiplexer.ReconfigureAsync(Boolean first, Boolean reconfigureAll, LogProxy log, EndPoint blame, String cause, Boolean publishReconfigure, CommandFlags publishReconfigureFlags) in /_/src/StackExchange.Redis/ConnectionMultiplexer.cs:line 1748 ```
mgravell
approved these changes
Aug 18, 2021
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This prevents a disposal race from killing us in connection phases and such, protected against in the counters above in Unofficial (see https://github.com/mgravell/Pipelines.Sockets.Unofficial/blob/19b141f30fe2485dd79993be0ac87a9fc6b34b74/src/Pipelines.Sockets.Unofficial/SocketConnection.cs#L235) but not here - adding the same protection guard.
Stack trace of such an error: