base: Mention openFile throwing does-not-exist-errors on FIFOs
authorBen Gamari <bgamari.foss@gmail.com>
Thu, 22 Nov 2018 16:33:39 +0000 (11:33 -0500)
committerBen Gamari <ben@smart-cactus.org>
Thu, 22 Nov 2018 17:11:16 +0000 (12:11 -0500)
commit4ba3fa31ddfa12b428bd67216a2d4118dc9e8311
tree4eecbd69f4d6733cfc608cd1e9d4a82052f38493
parent011e39d7fe533ca772beeed8529749c4750d4817
base: Mention openFile throwing does-not-exist-errors on FIFOs

As discussed in #15715, the POSIX specification specifies that
attempting to open a FIFO in write-only mode when the FIFO has no
readers will fail with -ENOENT.

[skip ci]

Test Plan: Read it

Reviewers: hvr

Subscribers: rwbarton, carter

GHC Trac Issues: #15715

Differential Revision: https://phabricator.haskell.org/D5295
libraries/base/GHC/IO/Handle/FD.hs