本文整理汇总了C++中MemoryBuffer::GetPosition方法的典型用法代码示例。如果您正苦于以下问题：C++ MemoryBuffer::GetPosition方法的具体用法？C++ MemoryBuffer::GetPosition怎么用？C++ MemoryBuffer::GetPosition使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MemoryBuffer的用法示例。
在下文中一共展示了MemoryBuffer::GetPosition方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Read
HRESULT Read(SOCKET socket, MemoryBuffer& buffer)
{
const size_t position = buffer.GetPosition();
const size_t size = buffer.GetSize();
int length = static_cast<int>(size - position);
char* data = reinterpret_cast<char*>(buffer.GetData()) + position;
const int status = recv(socket, data, length, 0);
if (status <= 0)
{
const DWORD code = WSAGetLastError();
const HRESULT result = (WSAEWOULDBLOCK == code) ? S_FALSE : E_FAIL;
return result;
}
length -= status;
buffer.SetPosition(position + status);
if (length > 0)
{
return S_FALSE;
}
return S_OK;
}示例2: Write
HRESULT Write(SOCKET socket, MemoryBuffer& buffer)
{
const size_t position = buffer.GetPosition();
const size_t size = buffer.GetSize();
int length = static_cast<int>(size - position);
const char* data = reinterpret_cast<const char*>(buffer.GetData()) + position;
const int status = send(socket, data, length, 0);
if (status < 0)
{
return E_FAIL;
}
length -= status;
buffer.SetPosition(position + status);
if (length > 0)
{
return S_FALSE;
}
return S_OK;
}