I am using streamwriter to write a string into stream. Now when I access the data from the stream, it adds "\0\0\0" characters to end of the content. I have to append the stream contents, so it creates problem as I am not able to remove these characters by trim() or remove() or replace() methods.
Below is the code I am using:
FOR WRITING :
using (MemoryMappedViewStream stream = mmf.CreateViewStream())
{
using (StreamWriter writer = new StreamWriter(stream, System.Text.Encoding.Unicode))
{
try
{
string[] files = System.IO.Directory.GetFiles(folderName, "*.*", System.IO.SearchOption.AllDirectories);
foreach (string str in files)
{
writer.WriteLine(str);
}
// writer.WriteLine(folderName);
}
catch (Exception ex)
{
Debug.WriteLine("Unable to write string. " + ex);
}
finally
{
mutex.ReleaseMutex();
mutex.WaitOne();
}
}
}
FOR READING :
StringBuilder sb = new StringBuilder();
string str = @"D:\Other Files\Test_Folder\New Text Document.txt";
using (var stream = mmf.CreateViewStream())
{
System.IO.StreamReader reader = new System.IO.StreamReader(stream);
sb.Append(reader.ReadToEnd());
sb.ToString().Trim('\0');
sb.Append("\n" + str);
}
How can I prevent this?
[UPDATES] Writing
// Lock
bool mutexCreated;
Mutex mutex = new Mutex(true, fileName, out mutexCreated);
if (!mutexCreated)
mutex = new Mutex(true);
try
{
using (MemoryMappedViewStream stream = mmf.CreateViewStream())
{
using (BinaryWriter writer = new BinaryWriter(stream))
{
try
{
string[] files = System.IO.Directory.GetFiles(folderName, "*.*", System.IO.SearchOption.AllDirectories);
foreach (string str in files)
{
writer.Write(str);
}
writer.Flush();
}
catch (Exception ex)
{
Debug.WriteLine("Unable to write string. " + ex);
}
finally
{
mutex.ReleaseMutex();
mutex.WaitOne();
}
}
}
}
catch (Exception ex)
{
Debug.WriteLine("Unable to monitor memory file. " + ex);
}
Reading
StringBuilder sb = new StringBuilder();
string str = @"D:\Other Files\Test_Folder\New Text Document.txt";
try
{
using (var stream = mmf.CreateViewStream())
{
System.IO.BinaryReader reader = new System.IO.BinaryReader(stream);
sb.Append(reader.ReadString());
sb.Append("\n" + str);
}
using (var stream = mmf.CreateViewStream())
{
System.IO.BinaryWriter writer = new System.IO.BinaryWriter(stream);
writer.Write(sb.ToString());
}
using (var stream = mmf.CreateViewStream())
{
System.IO.BinaryReader reader = new System.IO.BinaryReader(stream);
Console.WriteLine(reader.ReadString());
}
}
catch (Exception ex)
{
Debug.WriteLine("Unable to monitor memory file. " + ex);
}
