On Tue, 15 Aug 2023 18:09:50 +0900 キャロウ マーク wrote: > > On Aug 15, 2023, at 15:42, Takashi Yano <takashi.y...@nifty.ne.jp> wrote: > > > >> > >>> > >>> New pipe implementation since cygwin 3.4.x provides the pipes > >>> more similar to pipe in command prompt for non-cygwin apps. > >> > >> What are the differences between these pipes? What changed? > > > > Many changes. But, the change which triggers this behaviour > > is setting FILE_SYNCHRONOUS_IO_NONALERT create option. > > > > With this option, seekg() of Microsoft library gets success > > for pipes, despite it should not I suppose. > > On what create is this option specified?
Pipe itself. We use NtCreateNamedPipeFile() to create a pipe. https://learn.microsoft.com/en-us/windows/win32/devnotes/nt-create-named-pipe-file -- Takashi Yano <takashi.y...@nifty.ne.jp> -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
