private static void Compress_MultiStream(string filename, int threads)
{
var timer = Stopwatch.StartNew();
// create a new xz file
var fs = File.Create(filename);
var xz = new XZCompressStream(fs, threads);
using (var writer = new StreamWriter(xz, Encoding.UTF8))
{
for (int i = 0; i < CNT; i++)
{
writer.WriteLine($"this is line {i} written in {DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fffffff")}");
if (i%(CNT/10) == 0)
Console.WriteLine($"writing {i} lines, {timer.Elapsed}");
}
}
// open the same xz file and append new data
fs = new FileStream(filename, FileMode.Append, FileAccess.Write, FileShare.None);
xz = new XZCompressStream(fs, threads);
using (var writer = new StreamWriter(xz, new UTF8Encoding(false, true))) // append data should go without BOM
{
for (int i = 0; i < CNT; i++)
{
writer.WriteLine($"DATA APPENDED: this is line {i} written in {DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fffffff")}");
if (i%(CNT/10) == 0)
Console.WriteLine($"writing {i} lines, {timer.Elapsed}");
}
}
Console.WriteLine($"finished, {timer.Elapsed}");
}
private static void Compress_SingleStream(string filename, int threads)
{
var timer = Stopwatch.StartNew();
var fs = File.Create(filename);
var xz = new XZCompressStream(fs, threads);
using (var writer = new StreamWriter(xz, Encoding.UTF8))
{
for (int i = 0; i < CNT; i++)
{
writer.WriteLine($"this is line {i} written in {DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fffffff")}");
if (i%(CNT/10) == 0)
Console.WriteLine($"writing {i} lines, {timer.Elapsed}");
}
}
Console.WriteLine($"finished, {timer.Elapsed}");
}
public static void CompressFile(string inFile, string outFile, FileMode mode = FileMode.Create, int threads = 1, int level = 6)
{
var buffer = new byte[1 << 20];
using (var ins = new FileStream(inFile, FileMode.Open))
using (var outs = new XZCompressStream(outFile, threads, level, mode))
{
while (true)
{
var cnt = ins.Read(buffer, 0, buffer.Length);
outs.Write(buffer, 0, cnt);
if (cnt < buffer.Length)
{
break;
}
}
}
}
private void TestDispose()
{
var c = new XZCompressStream("temp1.xz");
c.Close();
c.Close();
c = new XZCompressStream("temp2.xz");
c.Dispose();
c.Dispose();
var d = new XZDecompressStream("temp1.xz");
d.Close();
d.Close();
d = new XZDecompressStream("temp2.xz");
d.Dispose();
d.Dispose();
}
public static void CompressFile(string inFile, string outFile, FileMode mode = FileMode.Create, int threads = 1, int level = 6)
{
var buffer = new byte[1 << 20];
using (var ins = new FileStream(inFile, FileMode.Open))
using (var outs = new XZCompressStream(outFile, threads, level, mode))
{
while (true)
{
var cnt = ins.Read(buffer, 0, buffer.Length);
outs.Write(buffer, 0, cnt);
if (cnt < buffer.Length)
break;
}
}
}
