C# safe handle has been closed
WebMay 13, 2013 · you open the serial port (which allocates native resources and uses SafeHandle (s) to hold on to those resources) you start reading from the serial port. then at some point (unexpected to your thread) you call Thread.Abort on it. most likely the code in your thread is at that point trying to access the serial port (to read data) the thread gets ... WebFeb 20, 2015 · It looks like the bug is in "the magic code" that you didn't show. I guess it starts a process and adds handlers for the ErrorDataReceived and OutputDataReceived events, but your event handlers then try to set an EventWaitHandle that has already been disposed. Because the calls come from the thread pool, the try-catch statements in …
C# safe handle has been closed
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WebSystem.ObjectDisposedException: Safe handle has been closed while trying to begin a transaction. Archived Forums 361-380 > SQL Server Database Engine https: ... Building Windows Store apps with C# or VB (archived) Please try to repair the VS. Answered … WebSep 1, 2024 · Solution 1. Don't abort the thread. Instead, use a timeout on the SerialPort ( SerialPort.ReadTimeout Property [ ^] which will cause the read operation to throw a timeout exception). Use a semaphore to tell the thread to terminate when it can, and let it close down in an orderly way. on ReadTimeout i wait for some time and recheck for any data ...
WebDec 2, 2016 · Setting the ReadTimeout to 100 millis solved this issue in my case. EDIT. It is not the definitive solution: it can happen that if you close the application during a read attempt you can get the same uncatchable exception. My final solution is to kill the … WebSep 9, 2024 · There can be another cause: if your serial port is emulated over e.g. a USB device, and that device gets removed while your application is running, the underlying …
WebNov 18, 2024 · I don’t have logs to verify, but a ODE with “safe handle has been closed” generally means that a connection has been closed or dropped by one thread, while another thread is still using the connection. This can be completely expected during normal running conditions as connections can be terminated at anytime for many reasons … WebJun 11, 2024 · The process was terminated due to an unhandled exception.System.ObjectDisposedException: Safe handle has been closed. Full stack trace: > Application: dotnet.exe CoreCLR Version: 4.6.26515.7 Description: The application requested process termination through System.Environment.FailFast(string message). …
WebJan 15, 2013 · I have a code block in my function with a "using" statement and on some of the variables I get the exception that the variable has been disposed. When I call the …
WebOct 5, 2024 · Synopsis After calling NTAccount.Translate with invalid (non-existing) user the NTAccount.Translate method becomes unusable and throws System.ObjectDisposedException: Safe handle has been closed on any query (even for existing user). Cod... graphitbelagWebAug 1, 2024 · System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ObjectDisposedException: Safe handle has been closed. at System.Runtime.InteropServices.SafeHandle.DangerousAddRef (Boolean& … graphit batterieWebSep 5, 2024 · System.ObjectDisposedException: Safe handle has been closed at System.Runtime.InteropServices.SafeHandle.DangerousAddRef(Boolean& success) at System.StubHelpers ... graphit bodenWebThis ensures that the handle will not be recycled or closed unexpectedly. You can specify ownership of the underlying handle when constructing SafeHandle objects by supplying a value to the ownsHandle argument in the SafeHandle class constructor. This controls whether the SafeHandle object will release the handle after the object has been ... chisago city post officeWebFeb 20, 2015 · It looks like the bug is in "the magic code" that you didn't show. I guess it starts a process and adds handlers for the ErrorDataReceived and OutputDataReceived events, but your event handlers then try to set an EventWaitHandle that has already been disposed. Because the calls come from the thread pool, the try-catch statements in … graphit bipolarplatteWebApr 8, 2010 · Message="Safe handle has been closed" Source="mscorlib" ObjectName="" StackTrace: at Microsoft.Win32.Win32Native.SetEvent(SafeWaitHandle handle) at System.Threading.EventWaitHandle.Set() ... I am a experienced C# developer and I have good knowledges about security and viruss. graphit bWebJun 28, 2024 · you open the serial port (which allocates native resources and uses SafeHandle (s) to hold on to those resources) then at some point (unexpected to your thread) you call Thread.Abort on it. most likely the code in your thread is at that point trying to access the serial port (to read data) the thread gets killed and the serial port handle is ... chisago city mn to amery wi