[issue12175] FileIO.readall() read the file position and size at each read

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

> BufferedReader.read() calls FileIO.read() until FileIO.read() returns
> an empty byte string. Why not calling FileIO.read() only once?

BufferedReader doesn't call FileIO.read, it calls <rawio>.read().
The latter can be e.g. a socket and call recv(). If you want to read
till the end of stream, you have to repeat until recv() returns the
empty string.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12175>
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