comparison mercurial/changelog.py @ 47426:cac0e0621ceb

revlog: use file read caching for sidedata

The previous changeset extracted this caching logic from the revlog class into
a new class. Adding a new instance of that class allows using the same logic
for side data.

Differential Revision: https://phab.mercurial-scm.org/D10879

47425:e0a314bcbc9d

                self._delaybuf = []
                self.opener = _delayopener(
                    self._realopener, self._indexfile, self._delaybuf
                )
            self._segmentfile.opener = self.opener
        self._delayed = True
        tr.addpending(b'cl-%i' % id(self), self._writepending)
        tr.addfinalize(b'cl-%i' % id(self), self._finalize)

    def _finalize(self, tr):
        """finalize index updates"""
        self._delayed = False
        self.opener = self._realopener
        self._segmentfile.opener = self.opener
        # move redirected index data back into place
        if self._docket is not None:
            self._write_docket(tr)
        elif self._divert:
            assert not self._delaybuf

            # switch modes so finalize can simply rename
            self._delaybuf = None
            self._divert = True
            self.opener = _divertopener(self._realopener, self._indexfile)
            self._segmentfile.opener = self.opener

        if self._divert:
            return True

        return False

47426:cac0e0621ceb

                self._delaybuf = []
                self.opener = _delayopener(
                    self._realopener, self._indexfile, self._delaybuf
                )
            self._segmentfile.opener = self.opener
            self._segmentfile_sidedata.opener = self.opener
        self._delayed = True
        tr.addpending(b'cl-%i' % id(self), self._writepending)
        tr.addfinalize(b'cl-%i' % id(self), self._finalize)

    def _finalize(self, tr):
        """finalize index updates"""
        self._delayed = False
        self.opener = self._realopener
        self._segmentfile.opener = self.opener
        self._segmentfile_sidedata.opener = self.opener
        # move redirected index data back into place
        if self._docket is not None:
            self._write_docket(tr)
        elif self._divert:
            assert not self._delaybuf

            # switch modes so finalize can simply rename
            self._delaybuf = None
            self._divert = True
            self.opener = _divertopener(self._realopener, self._indexfile)
            self._segmentfile.opener = self.opener
            self._segmentfile_sidedata.opener = self.opener

        if self._divert:
            return True

        return False