#8684: hWaitForInput cannot be interrupted by async exceptions on unix -------------------------------------+------------------------------------- Reporter: nh2 | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Core Libraries | Version: 7.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: 13497, 13525 | Blocking: Related Tickets: #12912, #13525 | Differential Rev(s): Phab:D42 Wiki Page: | -------------------------------------+------------------------------------- Comment (by nh2): Hmm, in [https://books.google.ch/books?id=r5tCAwAAQBAJ&pg=PT636&lpg=PT636&dq=CancelSynchronousIo++ERROR_NOT_FOUND&source=bl&ots=PS_yalzoMX&sig =hM- 5HzjZGwu66hal48xjV50kYsU&hl=en&sa=X&ved=0ahUKEwj0uvaI1sHXAhXDHxoKHdsDB_YQ6AEIRDAF#v=onepage&q=CancelSynchronousIo%20%20ERROR_NOT_FOUND&f=false this book] **Windows via C/C++** it says
Note that the thread calling `CancelSynchronousIo` doesn't really know where the thread that called the synchronous operation is. The thread could have been pre-empted and it has yet to actually communicate with the device; it could be suspended, waiting for the device to respond; or the device could have just responded, and the thread is in the process of returning from its call. If `CancelSynchronousIo` is called when the specified thread is not actually suspended waiting for the device to respond, `CancelSynchronousIo` returns `FALSE` and `GetLastError` returns error not found.
-- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8684#comment:27 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler