I have the following repro situation.
\r\nFirst, I used this code to create a bunch of dummy 300MB files:
\r\n#include <cstdio>
\r\n#include <cstdlib>
int main(int argc, char* argv[])
\r\n{
\r\n srand(1234);
size_t sz = 75*1024*1024;
\r\n int *data = new int[sz];
for (size_t ff=0; ff<18; ++ff)
\r\n {
\r\n printf("Making random data for File%03d\\n",ff+1);
\r\n for (size_t dd=0; dd<sz; ++dd)
\r\n {
\r\n data[dd] = rand();
\r\n }
\r\n char fname[50];
\r\n sprintf_s(fname,50,"File%03d.dat",ff+1);
\r\n printf("Saving out the file: %s\\n",fname);
\r\n FILE *fptr = 0;
\r\n fopen_s(&fptr,fname,"wb");
\r\n fwrite(data,sizeof(int),sz,fptr);
\r\n fclose(fptr);
\r\n }
delete [] data;
\r\n return 0;
\r\n}
Then I used the following code to zip up the created files:
\r\nusing System;
\r\nusing System.Collections.Generic;
\r\nusing System.Linq;
\r\nusing System.Text;
\r\nusing System.Text.RegularExpressions;
\r\nusing Ionic.Zip;
\r\n \r\n
\r\nnamespace TestZipUp
\r\n{
\r\n class Program
\r\n {
\r\n static int Main(string[] args)
\r\n {
\r\n if (args.Length != 2)
\r\n {
\r\n Console.WriteLine("Syntax: ");
\r\n Console.WriteLine(" TestZipUp <output zip name> <input folder>");
\r\n return -1;
\r\n }
string outputZipFname = args[0];
\r\n string inputFolder = args[1];
using (ZipFile zip = new ZipFile(outputZipFname))
\r\n {
\r\n zip.CompressionLevel = Ionic.Zlib.CompressionLevel.Default;
\r\n zip.UseZip64WhenSaving = Zip64Option.AsNecessary;
\r\n zip.AlternateEncoding = System.Text.Encoding.UTF8;
\r\n zip.AlternateEncodingUsage = ZipOption.Always;
// Zipping up the entire folder.
\r\n zip.AddDirectory(inputFolder);
\r\n Console.WriteLine("Zipping up folder ...");
// Update some static variables being used by the SaveProgress event handler first.
\r\n try
\r\n {
\r\n // If we're not running from Shell, using Console.WindowWidth will give an exception.
\r\n sConsoleWindowWidth = Console.WindowWidth;
\r\n sExecutingFromShell = true;
\r\n }
\r\n catch
\r\n {
\r\n sExecutingFromShell = false;
\r\n }
\r\n sLastZipEntry = null;
\r\n zip.SaveProgress += new EventHandler<SaveProgressEventArgs>(ZipSaveProgress);
\r\n zip.Save();
\r\n Console.WriteLine("\\nDone.");
return 0;
\r\n } \r\n
\r\n }
private static string sLastZipEntry = null;
\r\n private static bool sExecutingFromShell = false;
\r\n private static int sConsoleWindowWidth = 80;
static void ZipSaveProgress(object sender, SaveProgressEventArgs e)
\r\n {
\r\n if (e.TotalBytesToTransfer > 0)
\r\n {
\r\n if (sExecutingFromShell)
\r\n {
\r\n string s = string.Format("{0}: {1}%", e.CurrentEntry, (e.BytesTransferred * 100) / e.TotalBytesToTransfer);
\r\n Console.Write("\\r{0}", s.PadRight(sConsoleWindowWidth - 1));
\r\n }
\r\n else
\r\n {
\r\n // If the program is not being run on a Shell, just print out the file only once on screen.
\r\n if (sLastZipEntry != e.CurrentEntry.ToString())
\r\n {
\r\n Console.WriteLine("{0}", e.CurrentEntry.ToString());
\r\n sLastZipEntry = e.CurrentEntry.ToString();
\r\n }
\r\n }
\r\n }
\r\n }
}
\r\n}
When I ran the test, the program was able to zip up the first file "File001.dat" fine. But it start to hang at File002.dat at 0%.
\r\nI'm using DotNetZip version 1.9.1.8. Is this a know issue? Anyone seen DotNetZip hanging before when compressing large files? I notice that if I don't compress the files (ie set zip.CompressionLevel to Ionic.Zlib.CompressLevel.None), the\r\n process won't hang.
\r\n\r\n", "PostedDate": "2012-01-31T11:59:28.12-08:00", "UserRole": null, "MarkedAsAnswerDate": null }, { "Id": "804591", "ThreadId": "288073", "Html": "
Looks like I found another thread that shows me exactly what was happening and the work around.
\r\nhttp://dotnetzip.codeplex.com/workitem/14252
\r\n", "PostedDate": "2012-03-02T11:22:11.737-08:00", "UserRole": null, "MarkedAsAnswerDate": null } ]