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#include <cstdlib>
#include <cstring>
#include "DataBuffer.h"
using namespace AEThreading;
namespace AsuraEngine
{
namespace FileSystem
{
DataBuffer::DataBuffer(DataBuffer& src)
: m_Size(0)
, m_Capacity(0)
, m_Bytes(nullptr)
{
// ʼ
lock(m_Mutex)
{
m_Capacity = src.m_Size;
m_Bytes = new byte[m_Capacity];
Clear();
Load(src);
}
}
DataBuffer::DataBuffer(std::size_t capacity)
: m_Size(0)
, m_Capacity(0)
, m_Bytes(nullptr)
{
lock(m_Mutex)
{
m_Capacity = capacity;
m_Bytes = new byte[m_Capacity];
Clear();
}
}
DataBuffer::DataBuffer(const void* data, std::size_t size)
: m_Capacity(0)
, m_Size(0)
, m_Bytes(nullptr)
{
lock(m_Mutex)
{
m_Capacity = size;
m_Bytes = new byte[m_Capacity];
Clear();
Load(data, size);
}
}
DataBuffer::~DataBuffer()
{
lock(m_Mutex)
{
delete[] m_Bytes;
}
}
void DataBuffer::Refactor(size_t capacity)
{
lock(m_Mutex)
{
if (!m_Bytes || m_Capacity != capacity)
{
if(m_Bytes)
delete[] m_Bytes;
m_Capacity = capacity;
m_Bytes = new byte[m_Capacity];
m_Size = 0;
}
Clear();
}
}
void DataBuffer::Load(DataBuffer& db)
{
lock(m_Mutex)
{
Load(db.GetData(), db.GetSize());
}
}
void DataBuffer::Load(const void* data, std::size_t size)
{
lock(m_Mutex)
{
ASSERT(m_Capacity >= size);
memcpy(m_Bytes, data, size);
m_Size = size;
}
}
void DataBuffer::Move(void* bytes, std::size_t size)
{
lock(m_Mutex)
{
if (m_Bytes == bytes)
{
// sizeֵڶļʱ
m_Size = size;
}
else
{
if (m_Bytes)
delete[] m_Bytes;
m_Bytes = (byte*)bytes;
m_Size = size;
m_Capacity = size;
}
}
}
byte* DataBuffer::GetData()
{
return m_Bytes;
}
void DataBuffer::Clear()
{
lock(m_Mutex)
{
if (m_Bytes)
{
memset(m_Bytes, 0, m_Size);
m_Size = 0;
}
}
}
std::size_t DataBuffer::GetSize()
{
return m_Size;
}
std::size_t DataBuffer::GetCapacity()
{
return m_Capacity;
}
void DataBuffer::Lock()
{
m_Mutex.Lock();
}
void DataBuffer::Unlock()
{
m_Mutex.Unlock();
}
}
}
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