upstream/mercurial-mirror Files · mercurial/thirdparty/xdiff/xutils.h

verify: start to abstract file verification...

verify: start to abstract file verification Currently, the file storage interface has a handful of attributes that are exclusively or near-exclusively used by repo verification code. In order to support verification on non-revlog/alternate storage backends, we'll need to abstract verification so it can be performed in a storage-agnostic way. This commit starts that process. We establish a new verifyintegrity() method on revlogs and expose it to the file storage interface. Most of verify.verifier.checklog() has been ported to this new method. We need a way to represent verification problems. So we invent an interface to represent a verification problem, invent a revlog type to implement that interface, and use it. The arguments to verifyintegrity() will almost certainly change in the future, once more functionality is ported from the verify code. And the "revlogv1" version check is very hacky. (The code in verify is actually buggy because it is comparing the full 32-bit header integer instead of just the revlog version short. I'll likely fix this in a subsequent commit.) Differential Revision: https://phab.mercurial-scm.org/D4701

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      /*

       *  LibXDiff by Davide Libenzi ( File Differential Library )

       *  Copyright (C) 2003  Davide Libenzi

       *

       *  This library is free software; you can redistribute it and/or

       *  modify it under the terms of the GNU Lesser General Public

       *  License as published by the Free Software Foundation; either

       *  version 2.1 of the License, or (at your option) any later version.

       *

       *  This library is distributed in the hope that it will be useful,

       *  but WITHOUT ANY WARRANTY; without even the implied warranty of

       *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

       *  Lesser General Public License for more details.

       *

       *  You should have received a copy of the GNU Lesser General Public

       *  License along with this library; if not, see

       *  <http://www.gnu.org/licenses/>.

       *

       *  Davide Libenzi <davidel@xmailserver.org>

       *

       */

      #if !defined(XUTILS_H)

      #define XUTILS_H

      int64_t xdl_bogosqrt(int64_t n);

      int xdl_cha_init(chastore_t *cha, int64_t isize, int64_t icount);

      void xdl_cha_free(chastore_t *cha);

      void *xdl_cha_alloc(chastore_t *cha);

      int64_t xdl_guess_lines(mmfile_t *mf, int64_t sample);

      int xdl_recmatch(const char *l1, int64_t s1, const char *l2, int64_t s2);

      uint64_t xdl_hash_record(char const **data, char const *top);

      unsigned int xdl_hashbits(int64_t size);

      #endif /* #if !defined(XUTILS_H) */

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				/*
				* LibXDiff by Davide Libenzi ( File Differential Library )
				* Copyright (C) 2003 Davide Libenzi
				*
				* This library is free software; you can redistribute it and/or
				* modify it under the terms of the GNU Lesser General Public
				* License as published by the Free Software Foundation; either
				* version 2.1 of the License, or (at your option) any later version.
				*
				* This library is distributed in the hope that it will be useful,
				* but WITHOUT ANY WARRANTY; without even the implied warranty of
				* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
				* Lesser General Public License for more details.
				*
				* You should have received a copy of the GNU Lesser General Public
				* License along with this library; if not, see
				* <http://www.gnu.org/licenses/>.
				*
				* Davide Libenzi <davidel@xmailserver.org>
				*
				*/

				#if !defined(XUTILS_H)
				#define XUTILS_H



				int64_t xdl_bogosqrt(int64_t n);
				int xdl_cha_init(chastore_t *cha, int64_t isize, int64_t icount);
				void xdl_cha_free(chastore_t *cha);
				void xdl_cha_alloc(chastore_t cha);
				int64_t xdl_guess_lines(mmfile_t *mf, int64_t sample);
				int xdl_recmatch(const char l1, int64_t s1, const char l2, int64_t s2);
				uint64_t xdl_hash_record(char const *data, char const top);
				unsigned int xdl_hashbits(int64_t size);



				#endif /* #if !defined(XUTILS_H) */