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Enhance DDT entry functions to support existing entries and improve deduplication logic

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This commit is contained in:
Natalia Portillo
2025-09-30 20:45:30 +01:00
parent 43c06775f0
commit 75c7ebfefd
3 changed files with 117 additions and 73 deletions
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24
src/write.c
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@@ -157,6 +157,7 @@ int32_t aaruf_write_sector(void *context, uint64_t sector_address, const uint8_t
}
uint64_t ddt_entry = 0;
bool ddt_ok;
if(ctx->deduplicate)
{
@@ -167,9 +168,28 @@ int32_t aaruf_write_sector(void *context, uint64_t sector_address, const uint8_t
// Check if the hash is already in the map
bool existing = lookup_map(ctx->sectorHashMap, hash, &ddt_entry);
TRACE("Block does %s exist in deduplication map", existing ? "already" : "not yet");
}
bool ddt_ok = set_ddt_entry_v2(ctx, sector_address, ctx->currentBlockOffset, ctx->nextBlockPosition, sector_status);
ddt_ok = set_ddt_entry_v2(ctx, sector_address, ctx->currentBlockOffset, ctx->nextBlockPosition, sector_status,
&ddt_entry);
if(!ddt_ok)
{
TRACE("Exiting aaruf_write_sector() = AARUF_ERROR_CANNOT_SET_DDT_ENTRY");
return AARUF_ERROR_CANNOT_SET_DDT_ENTRY;
}
if(existing)
{
TRACE("Sector exists, so not writing to image");
TRACE("Exiting aaruf_write_sector() = AARUF_STATUS_OK");
return AARUF_STATUS_OK;
}
TRACE("Inserting sector hash into deduplication map, proceeding to write into image as normal");
insert_map(ctx->sectorHashMap, hash, ddt_entry);
}
else
ddt_ok = set_ddt_entry_v2(ctx, sector_address, ctx->currentBlockOffset, ctx->nextBlockPosition, sector_status,
&ddt_entry);
if(!ddt_ok)
{