GHCi's :edit command calls the editor with stdin in nonblocking mode

When using editline support, GHCi sets stdin to nonblocking mode.

withReadline = bracket_ stopTimer (do startTimer; setNonBlockingFD 0
     -- Two problems are being worked around here:
     -- 1. readline sometimes puts stdin into blocking mode,
     --    so we need to put it back for the IO library

Most editors expect that stdin is in blocking mode and nothing in the code sets the mode that way and the editor inherits the mode via system call in editFile, when using :edit.

Trac metadata

Trac field	Value
Version	6.10.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	GHCi
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture