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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "bucketstate.h"
#include "checksumaggregators.h"
#include <cassert>
#include <xxhash.h>
namespace proton::bucketdb {
namespace {
uint32_t
toIdx(SubDbType subDbType) {
return static_cast<uint32_t>(subDbType);
}
}
BucketState::ChecksumType BucketState::_checksumType = BucketState::ChecksumType::LEGACY;
void
BucketState::setChecksumType(ChecksumType type) {
_checksumType = type;
}
BucketState::~BucketState() = default;
BucketState::BucketState(const BucketState & rhs) = default;
BucketState::BucketState(BucketState && rhs) noexcept = default;
BucketState & BucketState::operator=(BucketState && rhs) noexcept = default;
BucketState::BucketState()
: _ch(),
_docSizes(),
_docCount(),
_active(false)
{
memset(&_ch, 0, sizeof(_ch));
for (uint32_t i = 0; i < COUNTS; ++i) {
_docCount[i] = 0;
_docSizes[i] = 0;
}
}
BucketState::BucketChecksum
BucketState::getChecksum() const {
switch (_checksumType) {
case ChecksumAggregator::ChecksumType::LEGACY:
return LegacyChecksumAggregator::get(_ch._legacy);
case ChecksumAggregator::ChecksumType::XXHASH64:
return XXH64ChecksumAggregator::get(_ch._xxh64);
}
abort();
}
BucketState::BucketChecksum
BucketState::addChecksum(BucketChecksum a, BucketChecksum b) {
switch (_checksumType) {
case ChecksumAggregator::ChecksumType::LEGACY:
return LegacyChecksumAggregator::get(LegacyChecksumAggregator::add(b, a));
case ChecksumAggregator::ChecksumType::XXHASH64:
return XXH64ChecksumAggregator::get(XXH64ChecksumAggregator::update(b, a));
}
abort();
}
void
BucketState::add(const GlobalId &gid, const Timestamp ×tamp, uint32_t docSize, SubDbType subDbType)
{
assert(subDbType < SubDbType::COUNT);
if (subDbType != SubDbType::REMOVED) {
switch (_checksumType) {
case ChecksumAggregator::ChecksumType::LEGACY:
_ch._legacy = LegacyChecksumAggregator::addDoc(gid, timestamp, _ch._legacy);
break;
case ChecksumAggregator::ChecksumType::XXHASH64:
_ch._xxh64 = XXH64ChecksumAggregator::update(gid, timestamp, _ch._xxh64);
break;
}
}
uint32_t subDbTypeIdx = toIdx(subDbType);
++_docCount[subDbTypeIdx];
_docSizes[subDbTypeIdx] += docSize;
}
void
BucketState::remove(const GlobalId &gid, const Timestamp ×tamp, uint32_t docSize, SubDbType subDbType)
{
assert(subDbType < SubDbType::COUNT);
uint32_t subDbTypeIdx = toIdx(subDbType);
assert(_docCount[subDbTypeIdx] > 0);
assert(_docSizes[subDbTypeIdx] >= docSize);
if (subDbType != SubDbType::REMOVED) {
switch (_checksumType) {
case ChecksumAggregator::ChecksumType::LEGACY:
_ch._legacy = LegacyChecksumAggregator::removeDoc(gid, timestamp, _ch._legacy);
break;
case ChecksumAggregator::ChecksumType::XXHASH64:
_ch._xxh64 = XXH64ChecksumAggregator::update(gid, timestamp, _ch._xxh64);
break;
}
}
--_docCount[subDbTypeIdx];
_docSizes[subDbTypeIdx] -= docSize;
}
void
BucketState::modify(const GlobalId &gid,
const Timestamp &oldTimestamp, uint32_t oldDocSize,
const Timestamp &newTimestamp, uint32_t newDocSize,
SubDbType subDbType)
{
assert(subDbType < SubDbType::COUNT);
uint32_t subDbTypeIdx = toIdx(subDbType);
assert(_docCount[subDbTypeIdx] > 0);
assert(_docSizes[subDbTypeIdx] >= oldDocSize);
if (subDbType != SubDbType::REMOVED) {
switch (_checksumType) {
case ChecksumAggregator::ChecksumType::LEGACY:
_ch._legacy = LegacyChecksumAggregator::removeDoc(gid, oldTimestamp, _ch._legacy);
_ch._legacy = LegacyChecksumAggregator::addDoc(gid, newTimestamp, _ch._legacy);
break;
case ChecksumAggregator::ChecksumType::XXHASH64:
_ch._xxh64 = XXH64ChecksumAggregator::update(gid, oldTimestamp, _ch._xxh64);
_ch._xxh64 = XXH64ChecksumAggregator::update(gid, newTimestamp, _ch._xxh64);
break;
}
}
_docSizes[subDbTypeIdx] = _docSizes[subDbTypeIdx] + newDocSize - oldDocSize;
}
bool
BucketState::empty() const
{
if (getReadyCount() != 0 || getRemovedCount() != 0 ||
getNotReadyCount() != 0)
return false;
assert((_checksumType == ChecksumAggregator::ChecksumType::LEGACY) ? (_ch._legacy == 0) : (_ch._xxh64 == 0));
for (uint32_t i = 0; i < COUNTS; ++i) {
assert(_docSizes[i] == 0);
}
return true;
}
BucketState &
BucketState::operator+=(const BucketState &rhs)
{
for (uint32_t i = 0; i < COUNTS; ++i) {
_docCount[i] += rhs._docCount[i];
_docSizes[i] += rhs._docSizes[i];
}
switch (_checksumType) {
case ChecksumAggregator::ChecksumType::LEGACY:
_ch._legacy = LegacyChecksumAggregator::add(rhs._ch._legacy, _ch._legacy);
break;
case ChecksumAggregator::ChecksumType::XXHASH64:
_ch._xxh64 = XXH64ChecksumAggregator::update(rhs._ch._xxh64, _ch._xxh64);
break;
}
return *this;
}
BucketState &
BucketState::operator-=(const BucketState &rhs)
{
for (uint32_t i = 0; i < COUNTS; ++i) {
assert(_docCount[i] >= rhs._docCount[i]);
assert(_docSizes[i] >= rhs._docSizes[i]);
}
for (uint32_t i = 0; i < COUNTS; ++i) {
_docCount[i] -= rhs._docCount[i];
_docSizes[i] -= rhs._docSizes[i];
}
switch (_checksumType) {
case ChecksumAggregator::ChecksumType::LEGACY:
_ch._legacy = LegacyChecksumAggregator::remove(rhs._ch._legacy, _ch._legacy);
break;
case ChecksumAggregator::ChecksumType::XXHASH64:
_ch._xxh64 = XXH64ChecksumAggregator::update(rhs._ch._xxh64, _ch._xxh64);
break;
}
return *this;
}
void
BucketState::applyDelta(BucketState *src, BucketState *dst) const
{
if (empty())
return;
assert(src);
assert(dst);
*src -= *this;
*dst += *this;
}
BucketState::operator storage::spi::BucketInfo() const
{
uint32_t notReady = getNotReadyCount();
uint32_t documentCount = getReadyCount() + notReady;
uint32_t entryCount = documentCount + getRemovedCount();
size_t docSizes = getReadyDocSizes() + getNotReadyDocSizes();
size_t entrySizes = docSizes + getRemovedDocSizes();
using BucketInfo = storage::spi::BucketInfo;
return {getChecksum(), documentCount, uint32_t(docSizes), entryCount, uint32_t(entrySizes),
notReady > 0 ? BucketInfo::NOT_READY : BucketInfo::READY,
_active ? BucketInfo::ACTIVE : BucketInfo::NOT_ACTIVE};
}
}
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