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ead691927b
Start converting `struct odb_source_loose` into a proper pluggable `struct odb_source` by embedding the base struct and assigning it the new `ODB_SOURCE_LOOSE` type. Furthermore, wire up lifecycle management of this source by implementing the `free` callback and taking ownership of the chdir notifications. Note that the loose source is not yet functional as a standalone `struct odb_source`, as it's missing all of the callback implementations. These will be wired up in subsequent commits. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
#ifndef ODB_SOURCE_LOOSE_H
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#define ODB_SOURCE_LOOSE_H
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#include "odb/source.h"
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struct odb_source_files;
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struct object_database;
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struct oidtree;
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/*
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* An object database source that stores its objects in loose format, one
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* file per object. This source is part of the files source.
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*/
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struct odb_source_loose {
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struct odb_source base;
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struct odb_source_files *files;
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/*
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* Used to store the results of readdir(3) calls when we are OK
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* sacrificing accuracy due to races for speed. That includes
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* object existence with OBJECT_INFO_QUICK, as well as
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* our search for unique abbreviated hashes. Don't use it for tasks
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* requiring greater accuracy!
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*
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* Be sure to call odb_load_loose_cache() before using.
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*/
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uint32_t subdir_seen[8]; /* 256 bits */
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struct oidtree *cache;
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/* Map between object IDs for loose objects. */
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struct loose_object_map *map;
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};
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struct odb_source_loose *odb_source_loose_new(struct odb_source_files *files);
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/*
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* Cast the given object database source to the loose backend. This will cause
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* a BUG in case the source doesn't use this backend.
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*/
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static inline struct odb_source_loose *odb_source_loose_downcast(struct odb_source *source)
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{
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if (source->type != ODB_SOURCE_LOOSE)
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BUG("trying to downcast source of type '%d' to loose", source->type);
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return container_of(source, struct odb_source_loose, base);
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}
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void odb_source_loose_clear_cache(struct odb_source_loose *loose);
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#endif
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