upstream/mercurial-mirror Files · mercurial/bdiff.h

persistent-nodemap: properly ignore non-existent `.nd` data file...

persistent-nodemap: properly ignore non-existent `.nd` data file This code was meant to handle the case of a nodemap docket file pointing to a nodemap data file that doesn’t exist (anymore), but most likely caused an `UnboundLocalError` exception instead when `data` was used on the next line without being defined. This case is theoretically possible with a race condition between two hg processes, but is hard to reproduce or test: * Process A reads a docket file and finds a UID in it that points to a given data file name. * Process B decides that this same data file needs compacting. It writes a new one with a different UID, overwrites the docket file, then removes the old data file. * Only then process A tries to a open a file that doesn’t exist anymore. Differential Revision: https://phab.mercurial-scm.org/D9533

Yuya Nishihara - - Load All Authors

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        Maciej Fijalkowski
    
bdiff: split bdiff into cpy-aware and cpy-agnostic part

              r29541
            
      #ifndef _HG_BDIFF_H_

      #define _HG_BDIFF_H_

        Yuya Nishihara
    
bdiff: include compat.h in header to define ssize_t...

              r34653
            
      #include "compat.h"

        Maciej Fijalkowski
    
bdiff: split bdiff into cpy-aware and cpy-agnostic part

              r29541
            
      struct bdiff_line {

      	int hash, n, e;

      	ssize_t len;

      	const char *l;

      };

      struct bdiff_hunk;

      struct bdiff_hunk {

      	int a1, a2, b1, b2;

      	struct bdiff_hunk *next;

      };

      int bdiff_splitlines(const char *a, ssize_t len, struct bdiff_line **lr);

      int bdiff_diff(struct bdiff_line *a, int an, struct bdiff_line *b, int bn,

        Augie Fackler
    
bdiff: format header file with clang-format...

              r34628
            
                     struct bdiff_hunk *base);

        Maciej Fijalkowski
    
bdiff: split bdiff into cpy-aware and cpy-agnostic part

              r29541
            
      void bdiff_freehunks(struct bdiff_hunk *l);

      #endif

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Maciej Fijalkowski bdiff: split bdiff into cpy-aware and cpy-agnostic part	r29541	#ifndef _HG_BDIFF_H_
		#define _HG_BDIFF_H_

Yuya Nishihara bdiff: include compat.h in header to define ssize_t...	r34653	#include "compat.h"

Maciej Fijalkowski bdiff: split bdiff into cpy-aware and cpy-agnostic part	r29541	struct bdiff_line {
		int hash, n, e;
		ssize_t len;
		const char *l;
		};

		struct bdiff_hunk;
		struct bdiff_hunk {
		int a1, a2, b1, b2;
		struct bdiff_hunk *next;
		};

		int bdiff_splitlines(const char a, ssize_t len, struct bdiff_line *lr);
		int bdiff_diff(struct bdiff_line a, int an, struct bdiff_line b, int bn,
Augie Fackler bdiff: format header file with clang-format...	r34628	struct bdiff_hunk *base);
Maciej Fijalkowski bdiff: split bdiff into cpy-aware and cpy-agnostic part	r29541	void bdiff_freehunks(struct bdiff_hunk *l);

		#endif