[
http://dev.sourcefabric.org/browse/LS-549?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Romain Beauxis updated LS-549:
------------------------------
Fix Version/s: 1.0.0+dev
(was: 1.0)
> Investigate shitty POSIX semantics for end of stream..
> ------------------------------------------------------
>
> Key: LS-549
> URL: http://dev.sourcefabric.org/browse/LS-549
> Project: Liquidsoap
> Issue Type: Task
> Reporter: Romain Beauxis
> Priority: Critical
> Fix For: 1.0.0+dev
>
>
> As you may know, the POSIX semantics for sockets/streams is really (really)
> shitty.
> One of its infamous case is the semantics for end of streams: no error code
> may be returned when a stream has ended. The "correct" way to detect an EOS
> on a socket is to check whether a read returned 0...
> Our decoding infrastructure, on the other hand, relies heavily on exceptions,
> in particular for detecting end of streams. In LS-548, because the AAC
> decoder has a read buffer, we did not see the end of track: last Unix.read
> was returning 0 and we simply returned inifitely many time the last string in
> the buffer..
> Although this is fixed for LS-548, I am filling this task in order to have a
> look at the code later. At every place where there is a Unix.read, we should
> think of what happends if this read returns 0 char. On a more general level,
> we may want to implement our own Utils.read and place there an exception
> raised when the read returned 0...
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