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// Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "packed_mixed_tensor_builder.h"
namespace vespalib::eval::packed_mixed_tensor {
template <typename T>
ArrayRef<T>
PackedMixedTensorBuilder<T>::add_subspace(ConstArrayRef<vespalib::stringref> addr_in)
{
std::vector<vespalib::stringref> addr(addr_in.begin(), addr_in.end());
uint32_t idx = _mappings_builder.add_mapping_for(addr);
size_t offset = idx * _subspace_size;
assert(offset == _cells.size());
_cells.resize(offset + _subspace_size);
return ArrayRef<T>(&_cells[offset], _subspace_size);
}
template <typename T>
std::unique_ptr<Value>
PackedMixedTensorBuilder<T>::build(std::unique_ptr<ValueBuilder<T>>)
{
size_t self_size = sizeof(PackedMixedTensor);
size_t mappings_size = _mappings_builder.extra_memory();
// align cells:
mappings_size += PackedMixedTensor::add_for_alignment(self_size + mappings_size);
size_t cells_size = sizeof(T) * _cells.size();
size_t total_size = self_size + mappings_size + cells_size;
char *mem = (char *) operator new(total_size);
char *mappings_mem = mem + self_size;
char *cells_mem = mappings_mem + mappings_size;
// fill mapping data:
auto mappings = _mappings_builder.target_memory(mappings_mem, cells_mem);
// copy cells:
memcpy(cells_mem, &_cells[0], cells_size);
ConstArrayRef<T> cells((T *)(void *) cells_mem, _cells.size());
PackedMixedTensor * built =
new (mem) PackedMixedTensor(_type, TypedCells(cells), mappings);
return std::unique_ptr<PackedMixedTensor>(built);
}
template class PackedMixedTensorBuilder<float>;
template class PackedMixedTensorBuilder<double>;
} // namespace
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