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#include "shared_range.h"
#include "new.h"
namespace NYT {
////////////////////////////////////////////////////////////////////////////////
TSharedRangeHolderPtr TSharedRangeHolder::Clone(const TSharedRangeHolderCloneOptions& /*options*/)
{
return this;
}
std::optional<size_t> TSharedRangeHolder::GetTotalByteSize() const
{
return std::nullopt;
}
////////////////////////////////////////////////////////////////////////////////
TSharedRangeHolderPtr MakeCompositeSharedRangeHolder(std::vector<TSharedRangeHolderPtr> holders)
{
struct THolder
: public TSharedRangeHolder
{
std::vector<TSharedRangeHolderPtr> Subholders;
TSharedRangeHolderPtr Clone(const TSharedRangeHolderCloneOptions& options) override
{
auto newHolder = New<THolder>();
newHolder->Subholders.reserve(Subholders.size());
for (const auto& subholder : Subholders) {
if (!subholder) {
continue;
}
if (auto clonedSubholder = subholder->Clone(options)) {
newHolder->Subholders.push_back(clonedSubholder);
}
}
return newHolder;
}
std::optional<size_t> GetTotalByteSize() const override
{
size_t result = 0;
for (const auto& subholder : Subholders) {
if (!subholder) {
continue;
}
auto subsize = subholder->GetTotalByteSize();
if (!subsize) {
return std::nullopt;
}
result += *subsize;
}
return result;
}
};
auto holder = New<THolder>();
holder->Subholders = std::move(holders);
return holder;
}
////////////////////////////////////////////////////////////////////////////////
} // namespace NYT
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