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Viewing changes to bzrlib/transport/__init__.py

  • Committer: Martin Pool
  • Date: 2011-08-02 01:10:27 UTC
  • mfrom: (6015.9.4 2.4)
  • mto: This revision was merged to the branch mainline in revision 6047.
  • Revision ID: mbp@canonical.com-20110802011027-cv8b6h9q18ctxle4
merge up 2.3 and 2.4 into trunk

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bzrlib/transport/__init__.py
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"""
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from cStringIO import StringIO
 
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import os
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import sys
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from bzrlib.lazy_import import lazy_import
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    def _close(self):
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        """A hook point for subclasses that need to take action on close."""
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    def close(self):
 
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    def close(self, want_fdatasync=False):
 
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        if want_fdatasync:
 
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            try:
 
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                self.fdatasync()
 
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            except errors.TransportNotPossible:
 
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                pass
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        self._close()
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        del _file_streams[self.transport.abspath(self.relpath)]
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    def fdatasync(self):
 
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        """Force data out to physical disk if possible.
 
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        :raises TransportNotPossible: If this transport has no way to 
 
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            flush to disk.
 
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        """
 
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        raise errors.TransportNotPossible(
 
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            "%s cannot fdatasync" % (self.transport,))
 
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class FileFileStream(FileStream):
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    """A file stream object returned by open_write_stream.
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    def _close(self):
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        self.file_handle.close()
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    def fdatasync(self):
 
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        """Force data out to physical disk if possible."""
 
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        self.file_handle.flush()
 
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        try:
 
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            fileno = self.file_handle.fileno()
 
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        except AttributeError:
 
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            raise errors.TransportNotPossible()
 
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        osutils.fdatasync(fileno)
 
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    def write(self, bytes):
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        osutils.pump_string_file(bytes, self.file_handle)
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