public static bool CopySource(string sourcefile, string copydirectory, ReportByte report, int buffersize = 4096)
{
if (!File.Exists(sourcefile))
{
return(false);
}
try
{
string copy = Path.Combine(copydirectory, new FileInfo(sourcefile).Name);
long total = new FileInfo(sourcefile).Length;
FileStream fs1 = new FileStream(sourcefile, FileMode.Open, FileAccess.Read, FileShare.Read, buffersize);
fs1.Seek(0, SeekOrigin.Begin);
CopySection(fs1, copy, (int)total, buffersize, report);
// Close the files.
fs1.Close();
return(new FileInfo(sourcefile).Length == new FileInfo(copy).Length);
}
catch
{
return(false);
}
}
private static void CopySection(Stream input, string targetFile, int length, int buffersize, ReportByte report)
{
byte[] buffer = new byte[buffersize];
int total = length;
using (Stream output = File.OpenWrite(targetFile))
{
int bytesRead = 1;
int totalBytes = 0;
// This will finish silently if we couldn't read "length" bytes.
// An alternative would be to throw an exception
while (length > 0 && bytesRead > 0)
{
int fil = Math.Min(length, buffer.Length);
bytesRead = input.Read(buffer, 0, fil);
output.Write(buffer, 0, bytesRead);
length -= bytesRead;
totalBytes += fil;
report(total, totalBytes);
}
}
}