private void WriteLocked(string relativePath, byte[] data, FileMutex fileMutex)
{
if (Exists(GetFullPath(relativePath)))
{
File.WriteAllBytes(GetFullPath(relativePath), data);
}
else
{
fileMutex.Unlock();
using (CreateDirectoriesLockParent(GetParentPath(relativePath)))
{
if (!fileMutex.TryLock())
{
throw new InvalidOperationException("msal cannot lock file for write"); // todo: exception
}
File.WriteAllBytes(GetFullPath(relativePath), data);
}
}
}
public FileMutex CreateDirectoriesLockParent(string relativePath)
{
FileMutex parentFileMutex = null;
if (!string.IsNullOrWhiteSpace(relativePath))
{
// Debug.WriteLine($"Getting parentFileMutex: ({Thread.CurrentThread.ManagedThreadId}) {key}");
parentFileMutex = CreateDirectoriesLockParent(GetParentPath(relativePath));
}
try
{
var fileMutex = LockFile(relativePath);
try
{
string fullPath = GetFullPath(relativePath);
if (!Exists(fullPath))
{
Directory.CreateDirectory(fullPath);
}
return(fileMutex);
}
catch (Exception ex)
{
Debug.WriteLine($"Exception caught: ({Thread.CurrentThread.ManagedThreadId}) {relativePath} --> {ex}");
fileMutex.Dispose();
throw;
}
}
finally
{
// Debug.WriteLine($"Releasing parentFileMutex: ({Thread.CurrentThread.ManagedThreadId}) {key}");
if (parentFileMutex != null)
{
parentFileMutex.Dispose();
parentFileMutex = null;
}
}
}