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unpack-trees: refactor prefetching code

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Refactor the prefetching code in unpack-trees.c into its own function,
because it will be used elsewhere in a subsequent commit.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Tan
2021-07-23 11:52:22 -07:00
committed by Junio C Hamano
parent eb27b338a3
commit b2896d2739
3 changed files with 40 additions and 19 deletions
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23
read-cache.c
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@ -27,6 +27,7 @@
#include "progress.h"
#include "sparse-index.h"
#include "csum-file.h"
#include "promisor-remote.h"
/* Mask for the name length in ce_flags in the on-disk index */
@ -3657,3 +3658,25 @@ static void write_ieot_extension(struct strbuf *sb, struct index_entry_offset_ta
strbuf_add(sb, &buffer, sizeof(uint32_t));
}
}
void prefetch_cache_entries(const struct index_state *istate,
must_prefetch_predicate must_prefetch)
{
int i;
struct oid_array to_fetch = OID_ARRAY_INIT;
for (i = 0; i < istate->cache_nr; i++) {
struct cache_entry *ce = istate->cache[i];
if (S_ISGITLINK(ce->ce_mode) || !must_prefetch(ce))
continue;
if (!oid_object_info_extended(the_repository, &ce->oid,
NULL,
OBJECT_INFO_FOR_PREFETCH))
continue;
oid_array_append(&to_fetch, &ce->oid);
}
promisor_remote_get_direct(the_repository,
to_fetch.oid, to_fetch.nr);
oid_array_clear(&to_fetch);
}