#ifndef PKE_MEMORY_HPP
#define PKE_MEMORY_HPP

#include "macros.hpp"

#include <cstring>
#include <cstdint>
#include <cstdlib>
#include <cstdio>
#include <cassert>

#define DEFAULT_BUCKET_SIZE 1UL << 27

namespace pke
{

struct MemBucket;

void *PkeNew(std::size_t sz);
void *PkeNew(std::size_t sz, MemBucket *bkt);
void PkeDelete(const void *ptr, std::size_t sz);
void PkeDelete(const void *ptr, std::size_t sz, MemBucket *bkt);

MemBucket *BeginTransientBucket(int64_t sz = DEFAULT_BUCKET_SIZE); // 256MB
void EndTransientBucket(MemBucket *bkt);
void Flush();

template <typename T>
inline T *PkeNew() {
	return reinterpret_cast<T *>(PkeNew(sizeof(T)));
}
template <typename T>
inline T *PkeNew(long count) {
	return reinterpret_cast<T *>(PkeNew(sizeof(T) * count));
}
template <typename T>
inline void PkeDelete(const void *ptr) {
	return PkeDelete(ptr, sizeof(T));
}
template <typename T>
inline void PkeDelete(const void *ptr, long count) {
	return PkeDelete(ptr, sizeof(T) * count);
}

} /* pke */ 

uint64_t Buckets_NewHandle(std::size_t bucketBytes, uint64_t bucketItemCount, uint64_t &bucketIncrementer, uint64_t &bucketCounter, uint64_t &itemCounter, void*& buckets);

template <typename T> inline uint64_t Buckets_NewHandle(uint64_t bucketItemCount, uint64_t &bucketIncrementer, uint64_t &bucketCounter, uint64_t &itemCounter, T*& buckets) {
	void *ptr = reinterpret_cast<void *>(buckets);
	uint64_t handle = Buckets_NewHandle(sizeof(T), bucketItemCount, bucketIncrementer, bucketCounter, itemCounter, ptr);
	buckets = reinterpret_cast<T *>(ptr);
	return handle;
}

static inline constexpr uint64_t Buckets_GetBucketIndex(uint64_t handle) {
	return handle & 0x00000000FFFFFFFF;
}

static inline constexpr uint64_t Buckets_GetItemIndex(uint64_t handle) {
	return handle >> 32;
}

#endif /* PKE_MEMORY_HPP */