#2678: hLookAhead + hSetBuffering = unsupported operation (Illegal seek)
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Reporter: igloo | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 6.10.2
Component: libraries/base | Version: 6.8.3
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Architecture: Unknown/Multiple
Os: Unknown/Multiple |
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Changes (by simonmar):
* milestone: => 6.10.2
Comment:
Yes, we could support this. Changing buffering mode is currently done by
just flushing the buffer first, which in the case of a ReadMode handle
means seeking backwards so we read the same data again, but of course that
fails on a non-seekable Handle. But of course it's possible to change to
"more buffering" without flushing the current buffer, so we should do
that.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2678#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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