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94cd775a6c
To store the individual mtimes of objects in a cruft pack, introduce a new `.mtimes` format that can optionally accompany a single pack in the repository. The format is defined in Documentation/technical/pack-format.txt, and stores a 4-byte network order timestamp for each object in name (index) order. This patch prepares for cruft packs by defining the `.mtimes` format, and introducing a basic API that callers can use to read out individual mtimes. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
27 lines
658 B
C
27 lines
658 B
C
#ifndef PACK_MTIMES_H
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#define PACK_MTIMES_H
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#include "git-compat-util.h"
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#define MTIMES_SIGNATURE 0x4d544d45 /* "MTME" */
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#define MTIMES_VERSION 1
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struct packed_git;
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/*
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* Loads the .mtimes file corresponding to "p", if any, returning zero
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* on success.
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*/
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int load_pack_mtimes(struct packed_git *p);
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/* Returns the mtime associated with the object at position "pos" (in
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* lexicographic/index order) in pack "p".
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*
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* Note that it is a BUG() to call this function if either (a) "p" does
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* not have a corresponding .mtimes file, or (b) it does, but it hasn't
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* been loaded
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*/
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uint32_t nth_packed_mtime(struct packed_git *p, uint32_t pos);
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#endif
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