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Desktop Head Tracking mod

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SDraw 2022-09-20 23:45:13 +03:00
parent 0ebafccb33
commit b116b14843
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ml_dht/MemoryMapReader.cs Normal file
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using System.IO;
using System.IO.MemoryMappedFiles;
namespace ml_dht
{
class MemoryMapReader
{
MemoryMappedFile m_file = null;
MemoryMappedViewStream m_stream = null;
int m_dataSize = 0;
public bool Open(string p_path, int p_dataSize = 1024)
{
if(m_file == null)
{
m_dataSize = p_dataSize;
m_file = MemoryMappedFile.CreateOrOpen(p_path, m_dataSize, MemoryMappedFileAccess.ReadWrite);
m_stream = m_file.CreateViewStream(0, m_dataSize, MemoryMappedFileAccess.Read);
}
return (m_file != null);
}
public bool Read(ref byte[] p_data)
{
bool l_result = false;
if((m_stream != null) && m_stream.CanRead)
{
try
{
m_stream.Seek(0, SeekOrigin.Begin);
m_stream.Read(p_data, 0, (p_data.Length > m_dataSize) ? m_dataSize : p_data.Length);
l_result = true;
}
catch(System.Exception) { }
}
return l_result;
}
public void Close()
{
if(m_file != null)
{
m_stream.Close();
m_stream.Dispose();
m_stream = null;
m_file.Dispose();
m_file = null;
m_dataSize = 0;
}
}
}
}