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object-file: introduce struct odb_source_loose

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Currently, all state that relates to loose objects is held directly by
the `struct odb_source`. Introduce a new `struct odb_source_loose` to
hold the state instead so that it is entirely self-contained.

This structure will eventually morph into the backend for accessing
loose objects. As such, this is part of the refactorings to introduce
pluggable object databases.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt
2025-11-03 08:42:00 +01:00
committed by Junio C Hamano
parent 0cc12dedef
commit ece43d9dc7
4 changed files with 25 additions and 0 deletions
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13
object-file.c
View File

@@ -1995,3 +1995,16 @@ void object_file_transaction_commit(struct odb_transaction *transaction)
transaction->odb->transaction = NULL;
free(transaction);
}
struct odb_source_loose *odb_source_loose_new(struct odb_source *source)
{
struct odb_source_loose *loose;
CALLOC_ARRAY(loose, 1);
loose->source = source;
return loose;
}
void odb_source_loose_free(struct odb_source_loose *loose)
{
free(loose);
}

7
object-file.h
View File

@@ -18,6 +18,13 @@ int index_path(struct index_state *istate, struct object_id *oid, const char *pa
struct odb_source;
struct odb_source_loose {
struct odb_source *source;
};
struct odb_source_loose *odb_source_loose_new(struct odb_source *source);
void odb_source_loose_free(struct odb_source_loose *loose);
/*
* Populate and return the loose object cache array corresponding to the
* given object ID.

2
odb.c
View File

@@ -151,6 +151,7 @@ struct odb_source *odb_source_new(struct object_database *odb,
source->odb = odb;
source->local = local;
source->path = xstrdup(path);
source->loose = odb_source_loose_new(source);
return source;
}
@@ -368,6 +369,7 @@ struct odb_source *odb_set_temporary_primary_source(struct object_database *odb,
static void odb_source_free(struct odb_source *source)
{
free(source->path);
odb_source_loose_free(source->loose);
odb_clear_loose_cache(source);
loose_object_map_clear(&source->loose_map);
free(source);

3
odb.h
View File

@@ -48,6 +48,9 @@ struct odb_source {
/* Object database that owns this object source. */
struct object_database *odb;
/* Private state for loose objects. */
struct odb_source_loose *loose;
/*
* Used to store the results of readdir(3) calls when we are OK
* sacrificing accuracy due to races for speed. That includes