private IpcCircularBuffer(Section section, string sectionName, Semaphore readSemaphore, Semaphore writeSemaphore)
{
BufferHeader header;
_section = section;
_sectionView = section.MapView(Marshal.SizeOf(typeof(BufferHeader)));
header = _sectionView.ReadStruct <BufferHeader>();
_sectionView.Dispose();
if (readSemaphore == null || writeSemaphore == null)
{
_readSemaphore = new Semaphore(sectionName + "_" + header.ReadSemaphoreId.ToString("x"));
_writeSemaphore = new Semaphore(sectionName + "_" + header.WriteSemaphoreId.ToString("x"));
}
else
{
_readSemaphore = readSemaphore;
_writeSemaphore = writeSemaphore;
}
_sectionView = _section.MapView(header.BlockSize * header.NumberOfBlocks);
_header = (BufferHeader *)_sectionView.Memory;
_data = &_header->Data;
}