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

rust-regex: increase the DFA size limit for the `regex` crate...

rust-regex: increase the DFA size limit for the `regex` crate `re2`'s DFA limit is already increased in `rust/hg-core/src/re2/rust_re2.cpp`, the same has to be done for the `regex` crate. Big repositories with big `.hgignore`s will sometimes hit this limit and face extreme performance regressions (I've seen one take *minutes* for `hg status`). Differential Revision: https://phab.mercurial-scm.org/D8499

Yuya Nishihara - - Load All Authors

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r34653:174d115d default


                r45286:b15a37d8

stable

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      #ifndef _HG_BDIFF_H_

      #define _HG_BDIFF_H_

      #include "compat.h"

      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,

                     struct bdiff_hunk *base);

      void bdiff_freehunks(struct bdiff_hunk *l);

      #endif

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				#ifndef _HG_BDIFF_H_
				#define _HG_BDIFF_H_

				#include "compat.h"

				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,
				struct bdiff_hunk *base);
				void bdiff_freehunks(struct bdiff_hunk *l);

				#endif