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Add constrained_block_size to granularity policy

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Marcus Holland-Moritz 2023-08-15 17:48:50 +02:00
parent 18b306033b
commit 19b3424a3c
1 changed files with 15 additions and 1 deletions
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16
src/dwarfs/segmenter.cpp
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@ -283,6 +283,13 @@ class ConstantGranularityPolicy : private GranularityPolicyBase {
chunkable_size_fail_message(size, kGranularity)); chunkable_size_fail_message(size, kGranularity));
} }
} }
static size_t constrained_block_size(size_t size) {
if constexpr (kGranularity > 1) {
size -= size % kGranularity;
}
return size;
}
}; };
class VariableGranularityPolicy : private GranularityPolicyBase { class VariableGranularityPolicy : private GranularityPolicyBase {
@ -309,6 +316,13 @@ class VariableGranularityPolicy : private GranularityPolicyBase {
} }
} }
size_t constrained_block_size(size_t size) const {
if (granularity_ > 1) {
size -= size % granularity_;
}
return size;
}
private: private:
uint_fast32_t const granularity_; uint_fast32_t const granularity_;
}; };
@ -395,7 +409,7 @@ class segmenter_ final : public segmenter::impl, private GranularityPolicy {
, block_ready_{std::move(block_ready)} , block_ready_{std::move(block_ready)}
, window_size_{window_size(cfg)} , window_size_{window_size(cfg)}
, window_step_{window_step(cfg)} , window_step_{window_step(cfg)}
, block_size_{block_size(cfg)} , block_size_{this->constrained_block_size(block_size(cfg))}
, filter_{bloom_filter_size(cfg)} , filter_{bloom_filter_size(cfg)}
, match_counts_{1, 0, 128} { , match_counts_{1, 0, 128} {
if (segmentation_enabled()) { if (segmentation_enabled()) {