Isn't that just shutil.copyfileobj()? On Fri, Jan 7, 2011 at 11:55 PM, max ulidtko <ulid...@gmail.com> wrote: > On Wed, 20 Mar 2002 14:53:58 -0500, Andrew Kuchling wrote: > | sendfile() is used when writing really high-performance Web servers, > | in order to save an unnecessary memory-to-memory copy. Question: > | should I make up a patch to add a sendfile() wrapper to Python? > > So, was this proposal rejected? If so, for what reasons? > > Wrapper of such a useful call would be of great convenience, especially > considering its availability on Win32 (see Thomas Heller's notice, [1]). > > Anyway, when one needs to send (arbitrarily large) files to a socket and > back, ugly and slow workarounds are born, like this one: > > def copy_file(file1, file2, length, blocksize=40960): > """ Transfer exactly length bytes from one file-like object to > another """ > sofar = 0 > while sofar < length: > amount = blocksize if sofar + blocksize <= length \ > else length - sofar > file2.write(file1.read(amount)) > sofar += amount > > > Using hypothetical os.sendfile() would be so much better! > > The only difficulty I can see is the choice of name for the wrapper. > IMO, using "sendfile" from Linux and FreeBSD is pretty much okay; but > objections may arise. > > [1] http://mail.python.org/pipermail/python-dev/2002-March/021543.html > > ------ > Sincerely, > max ulidtko > > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > http://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: > http://mail.python.org/mailman/options/python-dev/guido%40python.org >
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