NazaraEngine/include/Nazara/Core/ByteArray.hpp

127 lines
3.1 KiB
C++

// Copyright (C) 2013 Jérôme Leclercq
// This file is part of the "Nazara Engine - Core module"
// For conditions of distribution and use, see copyright notice in Config.hpp
#pragma once
#ifndef NAZARA_BYTEARRAY_HPP
#define NAZARA_BYTEARRAY_HPP
#include <Nazara/Prerequesites.hpp>
#include <Nazara/Core/Config.hpp>
#include <Nazara/Core/Hashable.hpp>
#include <atomic>
class NzAbstractHash;
class NzHashDigest;
class NAZARA_API NzByteArray : public NzHashable
{
public:
struct SharedArray;
NzByteArray();
NzByteArray(const void* buffer, unsigned int size);
NzByteArray(const NzByteArray& buffer);
NzByteArray(NzByteArray&& buffer) noexcept;
NzByteArray(SharedArray* sharedArray);
~NzByteArray();
NzByteArray& Append(const void* buffer, unsigned int size);
NzByteArray& Append(const NzByteArray& array);
void Clear(bool keepBuffer = false);
nzUInt8* GetBuffer();
unsigned int GetCapacity() const;
const nzUInt8* GetConstBuffer() const;
unsigned int GetSize() const;
NzByteArray& Insert(int pos, const void* buffer, unsigned int size);
NzByteArray& Insert(int pos, const NzByteArray& array);
bool IsEmpty() const;
NzByteArray& Prepend(const void* buffer, unsigned int size);
NzByteArray& Prepend(const NzByteArray& array);
void Reserve(unsigned int bufferSize);
NzByteArray& Resize(int size);
NzByteArray& Resize(int size, nzUInt8 byte);
NzByteArray Resized(int size) const;
NzByteArray Resized(int size, nzUInt8 byte) const;
NzByteArray SubArray(int startPos, int endPos = -1) const;
void Swap(NzByteArray& array);
// Méthodes compatibles STD
nzUInt8* begin();
const nzUInt8* begin() const;
nzUInt8* end();
const nzUInt8* end() const;
void push_front(nzUInt8 byte);
void push_back(nzUInt8 byte);
/*nzUInt8* rbegin();
const nzUInt8* rbegin() const;
nzUInt8* rend();
const nzUInt8* rend() const;*/
typedef const nzUInt8& const_reference;
typedef nzUInt8* iterator;
//typedef nzUInt8* reverse_iterator;
typedef nzUInt8 value_type;
// Méthodes compatibles STD
nzUInt8& operator[](unsigned int pos);
nzUInt8 operator[](unsigned int pos) const;
NzByteArray& operator=(const NzByteArray& array);
NzByteArray& operator=(NzByteArray&& array) noexcept;
NzByteArray operator+(const NzByteArray& array) const;
NzByteArray& operator+=(const NzByteArray& array);
static int Compare(const NzByteArray& first, const NzByteArray& second);
struct NAZARA_API SharedArray
{
SharedArray() :
refCount(1)
{
}
SharedArray(unsigned short referenceCount, unsigned int bufferSize, unsigned int arraySize, nzUInt8* ptr) :
capacity(bufferSize),
size(arraySize),
buffer(ptr),
refCount(referenceCount)
{
}
unsigned int capacity;
unsigned int size;
nzUInt8* buffer;
std::atomic_ushort refCount;
};
static SharedArray emptyArray;
static unsigned int npos;
private:
void EnsureOwnership();
bool FillHash(NzAbstractHash* hash) const;
void ReleaseArray();
SharedArray* m_sharedArray;
};
namespace std
{
NAZARA_API void swap(NzByteArray& lhs, NzByteArray& rhs);
}
#endif // NAZARA_BYTEARRAY_HPP