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chore: small fixes around tiering (#3368)

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Signed-off-by: Roman Gershman <roman@dragonflydb.io>
This commit is contained in:
Roman Gershman 2024-07-23 16:00:50 +03:00 • committed by GitHub
parent cd1f9d3923
commit c8a98fd110
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GPG key ID: B5690EEEBB952194
11 changed files with 44 additions and 28 deletions
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20
src/core/compact_object.cc
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@ -950,21 +950,23 @@ void CompactObj::SetExternal(size_t offset, uint32_t sz) {
u_.ext_ptr.offload.page_index = offset / 4096;
}
void CompactObj::SetCold(size_t offset, uint32_t sz, detail::TieredColdRecord* record) {
SetMeta(EXTERNAL_TAG, mask_);
void CompactObj::SetCool(size_t offset, uint32_t sz, detail::TieredColdRecord* record) {
// We copy the mask of the "cooled" referenced object because it contains the encoding info.
SetMeta(EXTERNAL_TAG, record->value.mask_);
u_.ext_ptr.is_cool = 1;
u_.ext_ptr.page_offset = offset % 4096;
u_.ext_ptr.serialized_size = sz;
u_.ext_ptr.cold_record = record;
u_.ext_ptr.cool_record = record;
}
auto CompactObj::GetCold() const -> ColdItem {
auto CompactObj::GetCool() const -> CoolItem {
DCHECK(IsExternal() && u_.ext_ptr.is_cool);
ColdItem res;
CoolItem res;
res.page_offset = u_.ext_ptr.page_offset;
res.serialized_size = u_.ext_ptr.serialized_size;
res.record = u_.ext_ptr.cold_record;
res.record = u_.ext_ptr.cool_record;
return res;
}
@ -976,9 +978,9 @@ void CompactObj::ImportExternal(const CompactObj& src) {
std::pair<size_t, size_t> CompactObj::GetExternalSlice() const {
DCHECK_EQ(EXTERNAL_TAG, taglen_);
DCHECK_EQ(u_.ext_ptr.is_cool, 0);
size_t offset = size_t(u_.ext_ptr.offload.page_index) * 4096 + u_.ext_ptr.page_offset;
auto& ext = u_.ext_ptr;
size_t offset = ext.page_offset;
offset += size_t(ext.is_cool ? ext.cool_record->page_index : ext.offload.page_index) * 4096;
return pair<size_t, size_t>(offset, size_t(u_.ext_ptr.serialized_size));
}