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

lfs: check content length after downloading content...

lfs: check content length after downloading content Adapted from the Facebook repo[1]. The intent is to distinguish between the connection dying and getting served a corrupt blob. The original message: HTTP makes no provision to tell your client that you failed halfway through producing your response and won't have the answer they're looking for. So, if a LFS server fails while producing a response, then we'll report an OID mismatch. We can do a little better and disambiguate between "the server sent us the wrong blob" (very scary) and "the server crashed" (merely annoying) by looking at the content length of the response we got back. If it's not what was advertised, we can reasonably safely assume the server crashed. [1] https://github.com/facebookexperimental/eden/commit/2a4a6fab4e882ed89b948bfc1e7d56d7c3c99dd2 Differential Revision: https://phab.mercurial-scm.org/D7881

Yuya Nishihara - - Load All Authors

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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