upstream/mercurial-mirror Files · mercurial/cext/revlog.h

phases: avoid N² behavior in `advanceboundary`...

phases: avoid N² behavior in `advanceboundary` We allowed duplicated entries in the deque, which each entry could potentially insert all its ancestors. So advancing boundary for the full repository would mean each revision would walk all its ancestors, resulting in O(N²) iteration. For repository of any decent size, N² is quickly insane. We introduce a simple set to avoid this and get back to reasonable performance.

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      /*

       revlog.h - efficient revlog parsing

       This software may be used and distributed according to the terms of

       the GNU General Public License, incorporated herein by reference.

      */

      #ifndef _HG_REVLOG_H_

      #define _HG_REVLOG_H_

      #include <Python.h>

      extern PyTypeObject HgRevlogIndex_Type;

      #define HgRevlogIndex_Check(op) PyObject_TypeCheck(op, &HgRevlogIndex_Type)

      #endif /* _HG_REVLOG_H_ */

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				/*
				revlog.h - efficient revlog parsing

				This software may be used and distributed according to the terms of
				the GNU General Public License, incorporated herein by reference.
				*/

				#ifndef _HG_REVLOG_H_
				#define _HG_REVLOG_H_

				#include <Python.h>

				extern PyTypeObject HgRevlogIndex_Type;

				#define HgRevlogIndex_Check(op) PyObject_TypeCheck(op, &HgRevlogIndex_Type)

				#endif /* _HG_REVLOG_H_ */