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

transaction: change list of journal entries into a dictionary...

transaction: change list of journal entries into a dictionary The transaction object used to keep a mapping table of path names to journal entries and a list of journal entries consisting of path and file offset to truncate on rollback. The offsets are used in three cases. repair.strip and rollback process all of them in one go, but they care about the order. For them, it is perfectly reasonable to read the journal back from disk as both operations already involve at least one system call per journal entry. The other consumer is the revlog logic for moving from inline to external data storage. It doesn't care about the order of the journal and just needs to original offset stored. Further optimisations are possible here to move the in-memory journal to a set(), but without memoisation of the original revlog size this could turn it into O(n^2) behavior in worst case when many revlogs need to migrated. Differential Revision: https://phab.mercurial-scm.org/D9277

Augie Fackler - - Load All Authors

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        Maciej Fijalkowski
    
mpatch: split mpatch into two files

              r29693
            
      #ifndef _HG_MPATCH_H_

      #define _HG_MPATCH_H_

        Maciej Fijalkowski
    
mpatch: remove dependency on Python.h in mpatch.c...

              r29694
            
      #define MPATCH_ERR_NO_MEM -3

      #define MPATCH_ERR_CANNOT_BE_DECODED -2

      #define MPATCH_ERR_INVALID_PATCH -1

        Maciej Fijalkowski
    
mpatch: split mpatch into two files

              r29693
            
      struct mpatch_frag {

      	int start, end, len;

      	const char *data;

      };

      struct mpatch_flist {

      	struct mpatch_frag *base, *head, *tail;

      };

        Augie Fackler
    
mpatch: reformat function prototypes with clang-format...

              r34801
            
      int mpatch_decode(const char *bin, ssize_t len, struct mpatch_flist **res);

        Maciej Fijalkowski
    
mpatch: split mpatch into two files

              r29693
            
      ssize_t mpatch_calcsize(ssize_t len, struct mpatch_flist *l);

      void mpatch_lfree(struct mpatch_flist *a);

      int mpatch_apply(char *buf, const char *orig, ssize_t len,

        Augie Fackler
    
mpatch: reformat function prototypes with clang-format...

              r34801
            
                       struct mpatch_flist *l);

      struct mpatch_flist *

      mpatch_fold(void *bins, struct mpatch_flist *(*get_next_item)(void *, ssize_t),

                  ssize_t start, ssize_t end);

        Maciej Fijalkowski
    
mpatch: split mpatch into two files

              r29693
            
      #endif

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Maciej Fijalkowski mpatch: split mpatch into two files	r29693	#ifndef _HG_MPATCH_H_
		#define _HG_MPATCH_H_

Maciej Fijalkowski mpatch: remove dependency on Python.h in mpatch.c...	r29694	#define MPATCH_ERR_NO_MEM -3
		#define MPATCH_ERR_CANNOT_BE_DECODED -2
		#define MPATCH_ERR_INVALID_PATCH -1

Maciej Fijalkowski mpatch: split mpatch into two files	r29693	struct mpatch_frag {
		int start, end, len;
		const char *data;
		};

		struct mpatch_flist {
		struct mpatch_frag base, head, *tail;
		};

Augie Fackler mpatch: reformat function prototypes with clang-format...	r34801	int mpatch_decode(const char bin, ssize_t len, struct mpatch_flist *res);
Maciej Fijalkowski mpatch: split mpatch into two files	r29693	ssize_t mpatch_calcsize(ssize_t len, struct mpatch_flist *l);
		void mpatch_lfree(struct mpatch_flist *a);
		int mpatch_apply(char buf, const char orig, ssize_t len,
Augie Fackler mpatch: reformat function prototypes with clang-format...	r34801	struct mpatch_flist *l);
		struct mpatch_flist *
		mpatch_fold(void bins, struct mpatch_flist (get_next_item)(void , ssize_t),
		ssize_t start, ssize_t end);
Maciej Fijalkowski mpatch: split mpatch into two files	r29693
		#endif