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#ifndef PK_MEM_TYPES_H
#define PK_MEM_TYPES_H
#include <stdint.h>
typedef uint32_t pk_handle_bucket_index_T;
typedef uint32_t pk_handle_item_index_T;
enum PK_HANDLE_VALIDATION : uint8_t {
PK_HANDLE_VALIDATION_VALID = 0,
PK_HANDLE_VALIDATION_BUCKET_INDEX_TOO_HIGH = 1,
PK_HANDLE_VALIDATION_ITEM_INDEX_TOO_HIGH = 2,
PK_HANDLE_VALIDATION_VALUE_MAX = 3,
};
struct pk_handle {
pk_handle_bucket_index_T bucketIndex;
pk_handle_item_index_T itemIndex;
};
const struct pk_handle pk_handle_MAX = (struct pk_handle){ .bucketIndex = 0xFFFFFFFF, .itemIndex = 0xFFFFFFFF };
static inline enum PK_HANDLE_VALIDATION
pk_handle_validate(const struct pk_handle handle, const struct pk_handle bucketHandle, const uint64_t maxItems)
{
if (handle.bucketIndex == pk_handle_MAX.bucketIndex && handle.itemIndex == pk_handle_MAX.itemIndex)
return PK_HANDLE_VALIDATION_VALUE_MAX;
if (handle.bucketIndex > bucketHandle.bucketIndex)
return PK_HANDLE_VALIDATION_BUCKET_INDEX_TOO_HIGH;
if (handle.itemIndex > maxItems)
return PK_HANDLE_VALIDATION_ITEM_INDEX_TOO_HIGH;
if (handle.bucketIndex == bucketHandle.bucketIndex && handle.itemIndex > bucketHandle.itemIndex)
return PK_HANDLE_VALIDATION_ITEM_INDEX_TOO_HIGH;
return PK_HANDLE_VALIDATION_VALID;
}
#if defined(__cplusplus)
constexpr struct pk_handle pk_handle_MAX_constexpr = (struct pk_handle){ .bucketIndex = 0xFFFFFFFF, .itemIndex = 0xFFFFFFFF };
inline constexpr bool
operator==(const pk_handle& lhs, const pk_handle& rhs)
{
return lhs.bucketIndex == rhs.bucketIndex && lhs.itemIndex == rhs.itemIndex;
}
template<const pk_handle handle, const pk_handle bucketHandle, const uint64_t maxItems>
inline constexpr enum PK_HANDLE_VALIDATION
pk_handle_validate_constexpr()
{
if constexpr (handle == pk_handle_MAX_constexpr)
return PK_HANDLE_VALIDATION_VALUE_MAX;
if constexpr (handle.bucketIndex > bucketHandle.bucketIndex)
return PK_HANDLE_VALIDATION_BUCKET_INDEX_TOO_HIGH;
if constexpr (handle.itemIndex > maxItems)
return PK_HANDLE_VALIDATION_ITEM_INDEX_TOO_HIGH;
if constexpr (handle.bucketIndex == bucketHandle.bucketIndex && handle.itemIndex > bucketHandle.itemIndex)
return PK_HANDLE_VALIDATION_ITEM_INDEX_TOO_HIGH;
return PK_HANDLE_VALIDATION_VALID;
}
#endif /* __cplusplus */
struct pk_membucket;
#endif /* PK_MEM_TYPES_H */
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