public void Truncate(long size)
{
if (Win32NativeFileMethods.FlushFileBuffers(_handle) == false)
{
throw new Win32Exception(Marshal.GetLastWin32Error(), "Failed to sync for " + _filename);
}
Win32NativeFileMethods.SetFileLength(_handle, size);
}
public static unsafe void WriteFileHeader(FileHeader *header, string path)
{
using (var fs = new FileStream(path, FileMode.Create, FileAccess.ReadWrite, FileShare.Read))
{
var ptr = (byte *)header;
int remaining = sizeof(FileHeader);
while (remaining > 0)
{
int read;
if (Win32NativeFileMethods.WriteFile(fs.SafeFileHandle, ptr, remaining, out read, null) == false)
{
throw new Win32Exception();
}
ptr += read;
remaining -= read;
}
Win32NativeFileMethods.FlushFileBuffers(fs.SafeFileHandle);
}
}
public static unsafe void WriteFileHeader(FileHeader *header, VoronPathSetting path)
{
using (var fs = SafeFileStream.Create(path.FullPath, FileMode.Create, FileAccess.ReadWrite, FileShare.Read, 4096, FileOptions.None))
{
var ptr = (byte *)header;
int remaining = sizeof(FileHeader);
while (remaining > 0)
{
int written;
if (Win32NativeFileMethods.WriteFile(fs.SafeFileHandle, ptr, remaining, out written, null) == false)
{
throw new Win32Exception(Marshal.GetLastWin32Error(), "Failed to write to file " + path);
}
ptr += written;
remaining -= written;
}
if (Win32NativeFileMethods.FlushFileBuffers(fs.SafeFileHandle) == false)
{
throw new Win32Exception(Marshal.GetLastWin32Error(), "Failed to Flush File Buffers (sync) of file " + path);
}
}
}
