tell method for file objects about pysmbc HOT 9 OPEN

Actually, let me amend that. It should be easier to implement a tell method than I said. Just call lseek with whence = SEEK_CUR and an offset of 0 bytes; this will return the current offset without changing it.

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Just wanted to gently nudge again on this issue - I don't mean to pester, I know what it's like to support open source code, I'm just hoping to for an answer about whether this might even be possible. Thanks for your time.

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I have no idea to add flush() and tell() with libsmbclient.
https://github.com/samba-team/samba/blob/master/source3/include/libsmbclient.h

If I'm in the same situation as you, I'll transfer the complete file written locally to the remote.

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OK, thanks for the reply. Uploading whole files is a potential solution, but one I am hoping to avoid for a few reasons. The biggest reason is that the arrays I am hoping to load / save are quite large, so saving to disk and then uploading takes substantially longer than directly uploading, and quickly creates a large cache (e.g. on cluster machines running jobs). But I can work with it. Thanks again for your useful code.

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The obvious answer is to wrap an smbc.File in your own file-like object. Every time write is called, count up the number of bytes written before passing it on. And of course also keep track of seek calls. Then you can implement tell to return the current position.

As for flush, I assume that libsmbclient doesn’t implement buffering. So either implement flush as a noop, or (more complicated) manage your own buffering.

(Duck typing FTW!)

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Workaround:

class SmbcFileWrapper(object):
    def __init__(self, obj):
        self.obj = obj
    def __getattr__(self, name):
        return getattr(self.obj, name)
    def flush(self):
        pass
    def tell(self):
        return self.obj.seek(0, os.SEEK_CUR)

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I added a custom read function to fix another issue: #46 (comment)

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I did 2 pull requests (flush, tell) + a fix for the read function.

Here is a branch with the 3 PR merged together: https://github.com/frafra/pysmbc/tree/nina-fixes

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Upstream bug report for tell: https://bugzilla.samba.org/show_bug.cgi?id=14383
Upstream bug report for flush: https://bugzilla.samba.org/show_bug.cgi?id=14384

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