/// <summary>
/// Opens a new storage stream for writing.
/// Throws an exception after n failed attempts.
/// </summary>
/// <param name="name"></param>
/// <param name="source"></param>
/// <returns>the open stream on success</returns>
public static Stream OpenWrite(string name, StorageSource source)
{
if ((source & StorageSource.TitleSpace) != 0)
{
#if !Xbox
System.Windows.Forms.MessageBox.Show(
"\nsource = " + source.ToString()
+ "\nPathBase = " + PathBase(source)
+ "\n name = " + name,
"OpenWrite failure, trying to write to title space.",
System.Windows.Forms.MessageBoxButtons.OK,
System.Windows.Forms.MessageBoxIcon.Asterisk);
#endif
throw new Exception("Storage may not write to title space.");
}
dirty = true;
int attempts = 0;
Stream stream = null;
while (stream == null)
{
try
{
CreateDirectory(name, source);
stream = new FileStream(
Combine(PathBase(source), name),
FileMode.Create,
FileAccess.Write,
FileShare.None);
}
catch
{
if (attempts >= kFileOperationRetryCount)
{
throw;
}
Thread.Sleep(kFileOperationRetryWaitMs);
++attempts;
}
}
if (stream == null)
{
#if !Xbox
System.Windows.Forms.MessageBox.Show(
"\nsource = " + source.ToString()
+ "\nPathBase = " + PathBase(source)
+ "\n name = " + name,
"OpenWrite failure.",
System.Windows.Forms.MessageBoxButtons.OK,
System.Windows.Forms.MessageBoxIcon.Asterisk);
#endif
}
return(stream);
} // end of OpenWrite()
/// <summary>
/// Open a stream for read access.
/// </summary>
/// <param name="name"></param>
/// <param name="sources"></param>
/// <param name="wantRetry"></param>
/// <returns></returns>
public static Stream OpenRead(string name, StorageSource sources, bool wantRetry)
{
#if OPEN_READ_DEBUG
// Hack to try and debug file open errors.
try
{
string p = Environment.GetFolderPath(Environment.SpecialFolder.Personal) + @"\OpenRead.txt";
TextWriter tw = new StreamWriter(p, false);
// Write a line of text to the file
tw.WriteLine("filename : " + name);
tw.WriteLine("sources : " + sources.ToString());
StorageSource src = CheckSources(sources);
tw.WriteLine("checked sources : " + src.ToString());
bool local = 0 != (src & StorageSource.LocalSpace);
tw.WriteLine("local : " + local.ToString());
if (local)
{
string path = Combine(PathBase(StorageSource.LocalSpace), name);
tw.WriteLine(" path : " + path.ToString());
bool exists = File.Exists(path);
tw.WriteLine(" exists : " + exists.ToString());
if (exists)
{
tw.WriteLine(" opening");
Stream str = null;
try
{
str = File.OpenRead(path);
}
catch (Exception e)
{
tw.WriteLine(" fail : ", e.Message);
tw.WriteLine(" : ", e.InnerException.Message);
}
finally
{
if (str != null)
{
str.Close();
tw.WriteLine(" closing");
}
}
}
}
bool user = 0 != (src & StorageSource.UserSpace);
tw.WriteLine("user : "******" path : " + path.ToString());
bool exists = File.Exists(path);
tw.WriteLine(" exists : " + exists.ToString());
if (exists)
{
tw.WriteLine(" opening");
Stream str = null;
try
{
str = File.OpenRead(path);
}
catch (Exception e)
{
tw.WriteLine(" fail : ", e.Message);
tw.WriteLine(" : ", e.InnerException.Message);
}
finally
{
if (str != null)
{
str.Close();
tw.WriteLine(" closing");
}
}
}
}
bool title = 0 != (src & StorageSource.TitleSpace);
tw.WriteLine("title : " + title.ToString());
if (title)
{
string path = Combine(PathBase(StorageSource.TitleSpace), name);
tw.WriteLine(" path : " + path.ToString());
bool exists = File.Exists(path);
tw.WriteLine(" exists : " + exists.ToString());
if (exists)
{
tw.WriteLine(" opening");
Stream str = null;
try
{
str = File.OpenRead(path);
}
catch (Exception e)
{
tw.WriteLine(" fail : ", e.Message);
tw.WriteLine(" : ", e.InnerException.Message);
}
finally
{
if (str != null)
{
str.Close();
tw.WriteLine(" closing");
}
}
}
}
tw.WriteLine("");
tw.Close();
}
catch (Exception e)
{
System.Windows.Forms.MessageBox.Show(e.Message + "\n" + e.InnerException.Message);
}
#endif
Stream stream = null;
int attempts = 0;
while (true)
{
if (Initialized)
{
sources = CheckSources(sources);
/// Try first on local space
if (0 != (sources & StorageSource.LocalSpace))
{
string path = Combine(PathBase(StorageSource.LocalSpace), name);
if (File.Exists(path))
{
stream = File.OpenRead(path);
}
}
/// If not there, try user space.
if ((stream == null) &&
(0 != (sources & StorageSource.UserSpace)))
{
string path = Combine(PathBase(StorageSource.UserSpace), name);
if (File.Exists(path))
{
stream = File.OpenRead(path);
}
}
}
// This next bit is the last chance to get it. If
// we fail, we want to generate the exception, so no
// try/catch wrapper here.
if (stream == null && 0 != (sources & StorageSource.TitleSpace))
{
string path = Combine(PathBase(StorageSource.TitleSpace), name);
if (File.Exists(path))
{
#if !PREBOOT && !ADDIN
// This file exists in title space, so log the filename.
BokuGame.LogContentFileLoaded(path);
#endif
stream = File.OpenRead(path);
}
}
if (stream != null)
{
break;
}
if (!wantRetry)
{
break;
}
if (attempts >= kFileOperationRetryCount)
{
break;
}
Thread.Sleep(kFileOperationRetryWaitMs);
attempts += 1;
}
if (stream == null)
{
#if XBOX
// Do nothing?
#else
throw new FileNotFoundException(String.Format("File not found in {0}: {1}", sources, name));
#endif
}
return(stream);
}
