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* [newlib-cygwin] Cygwin: pty: Set input_available_event only for cygwin pipe.
@ 2021-01-18 15:26 Corinna Vinschen
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From: Corinna Vinschen @ 2021-01-18 15:26 UTC (permalink / raw)
To: cygwin-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=a776a0ce26abfdf5de9b94746818dfce176ab215
commit a776a0ce26abfdf5de9b94746818dfce176ab215
Author: Takashi Yano via Cygwin-patches <cygwin-patches@cygwin.com>
Date: Fri Jan 15 18:26:31 2021 +0900
Cygwin: pty: Set input_available_event only for cygwin pipe.
- cat exits immediately in the following senario.
1) Execute env CYGWIN=disable_pcon script
2) Execute cmd.exe
3) Execute cat in cmd.exe.
This is caused by setting input_available_event for the pipe for
non-cygwin app. This patch fixes the issue.
Diff:
---
winsup/cygwin/fhandler_tty.cc | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/winsup/cygwin/fhandler_tty.cc b/winsup/cygwin/fhandler_tty.cc
index 29870c779..473c0c968 100644
--- a/winsup/cygwin/fhandler_tty.cc
+++ b/winsup/cygwin/fhandler_tty.cc
@@ -386,7 +386,8 @@ fhandler_pty_master::accept_input ()
}
}
- SetEvent (input_available_event);
+ if (write_to == get_output_handle ())
+ SetEvent (input_available_event);
ReleaseMutex (input_mutex);
return ret;
}
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2021-01-18 15:26 [newlib-cygwin] Cygwin: pty: Set input_available_event only for cygwin pipe Corinna Vinschen
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