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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "small_subspaces_buffer_type.h"
#include "tensor_buffer_operations.h"
#include "tensor_buffer_type_mapper.h"
#include <vespa/vespalib/util/arrayref.h>
using vespalib::alloc::MemoryAllocator;
namespace search::tensor {
SmallSubspacesBufferType::SmallSubspacesBufferType(uint32_t array_size, const AllocSpec& spec, std::shared_ptr<MemoryAllocator> memory_allocator, TensorBufferTypeMapper& type_mapper) noexcept
: ParentType(array_size, spec.min_entries_in_buffer, spec.max_entries_in_buffer, spec.num_entries_for_new_buffer, spec.allocGrowFactor),
_memory_allocator(std::move(memory_allocator)),
_ops(type_mapper.get_tensor_buffer_operations())
{
}
SmallSubspacesBufferType::~SmallSubspacesBufferType() = default;
void
SmallSubspacesBufferType::clean_hold(void* buffer, size_t offset, EntryCount num_entries, CleanContext)
{
char* elem = static_cast<char *>(buffer) + offset * getArraySize();
while (num_entries >= 1) {
_ops.reclaim_labels(vespalib::ArrayRef<char>(elem, getArraySize()));
elem += getArraySize();
--num_entries;
}
}
void
SmallSubspacesBufferType::destroy_entries(void *buffer, EntryCount num_entries)
{
char* elem = static_cast<char *>(buffer);
while (num_entries >= 1) {
_ops.reclaim_labels(vespalib::ArrayRef<char>(elem, getArraySize()));
elem += getArraySize();
--num_entries;
}
}
void
SmallSubspacesBufferType::fallback_copy(void *newBuffer, const void *oldBuffer, EntryCount num_entries)
{
if (num_entries > 0) {
memcpy(newBuffer, oldBuffer, num_entries * getArraySize());
}
const char *elem = static_cast<const char *>(oldBuffer);
while (num_entries >= 1) {
_ops.copied_labels(unconstify(vespalib::ConstArrayRef<char>(elem, getArraySize())));
elem += getArraySize();
--num_entries;
}
}
void
SmallSubspacesBufferType::initialize_reserved_entries(void *buffer, EntryCount reserved_entries)
{
memset(buffer, 0, reserved_entries * getArraySize());
}
const vespalib::alloc::MemoryAllocator*
SmallSubspacesBufferType::get_memory_allocator() const
{
return _memory_allocator.get();
}
}
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