/// <summary>
/// Iterate over all active files in the state.
/// </summary>
/// <param name="mode">RaiseAlways to raise Changed event for each active file, RaiseOnlyOnModified to only raise for modified active files.</param>
/// <param name="action">A delegate with an action to take for each active file, returning the same or updated active file as need be.</param>
public void ForEach(ChangedEventMode mode, Func <ActiveFile, ActiveFile> action)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
bool isModified = false;
List <ActiveFile> activeFiles = new List <ActiveFile>();
foreach (ActiveFile activeFile in ActiveFiles)
{
ActiveFile updatedActiveFile = action(activeFile);
activeFiles.Add(updatedActiveFile);
if (updatedActiveFile != activeFile)
{
isModified = true;
OnChanged(new ActiveFileChangedEventArgs(updatedActiveFile));
activeFile.Dispose();
}
}
if (isModified)
{
lock (_lock)
{
SetRangeInternal(activeFiles, ActiveFileStatus.None);
}
Save();
}
if (!isModified && mode == ChangedEventMode.RaiseAlways)
{
RaiseChangedForAll(activeFiles);
}
}
/// <summary>
/// Enumerate all files listed as active, checking for status changes and take appropriate actions such as updating status
/// in the FileSystemState, re-encrypting or deleting temporary plaintext copies.
/// </summary>
/// <param name="fileSystemState">The FileSystemState to enumerate and possibly update.</param>
/// <param name="mode">Under what circumstances is the FileSystemState.Changed event raised.</param>
/// <param name="progress">The ProgressContext to provide visual progress feedback via.</param>
public static void CheckActiveFiles(this FileSystemState fileSystemState, ChangedEventMode mode, ProgressContext progress)
{
progress.NotifyLevelStart();
progress.AddTotal(fileSystemState.ActiveFileCount);
fileSystemState.ForEach(mode, (ActiveFile activeFile) =>
{
try
{
if (FileLock.IsLocked(activeFile.DecryptedFileInfo, activeFile.EncryptedFileInfo))
{
return(activeFile);
}
if (OS.Current.UtcNow - activeFile.LastActivityTimeUtc <= new TimeSpan(0, 0, 5))
{
return(activeFile);
}
activeFile = fileSystemState.CheckActiveFileActions(activeFile, progress);
return(activeFile);
}
finally
{
progress.AddCount(1);
}
});
progress.NotifyLevelFinished();
}
/// <summary>
/// Enumerate all files listed as active, checking for status changes and take appropriate actions such as updating status
/// in the FileSystemState, re-encrypting or deleting temporary plaintext copies.
/// </summary>
/// <param name="fileSystemState">The FileSystemState to enumerate and possibly update.</param>
/// <param name="mode">Under what circumstances is the FileSystemState.Changed event raised.</param>
/// <param name="progress">The ProgressContext to provide visual progress feedback via.</param>
public static void CheckActiveFiles(this FileSystemState fileSystemState, ChangedEventMode mode, ProgressContext progress)
{
progress.NotifyLevelStart();
progress.AddTotal(fileSystemState.ActiveFileCount);
fileSystemState.ForEach(mode, (ActiveFile activeFile) =>
{
try
{
if (FileLock.IsLocked(activeFile.DecryptedFileInfo, activeFile.EncryptedFileInfo))
{
return activeFile;
}
if (OS.Current.UtcNow - activeFile.LastActivityTimeUtc <= new TimeSpan(0, 0, 5))
{
return activeFile;
}
activeFile = fileSystemState.CheckActiveFileActions(activeFile, progress);
return activeFile;
}
finally
{
progress.AddCount(1);
}
});
progress.NotifyLevelFinished();
}
/// <summary>
/// Iterate over all active files in the state.
/// </summary>
/// <param name="mode">RaiseAlways to raise Changed event for each active file, RaiseOnlyOnModified to only raise for modified active files.</param>
/// <param name="action">A delegate with an action to take for each active file, returning the same or updated active file as need be.</param>
public void ForEach(ChangedEventMode mode, Func<ActiveFile, ActiveFile> action)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
bool isModified = false;
List<ActiveFile> activeFiles = new List<ActiveFile>();
foreach (ActiveFile activeFile in ActiveFiles)
{
ActiveFile updatedActiveFile = action(activeFile);
activeFiles.Add(updatedActiveFile);
if (updatedActiveFile != activeFile)
{
isModified = true;
OnChanged(new ActiveFileChangedEventArgs(updatedActiveFile));
activeFile.Dispose();
}
}
if (isModified)
{
lock (_lock)
{
SetRangeInternal(activeFiles, ActiveFileStatus.None);
}
Save();
}
if (!isModified && mode == ChangedEventMode.RaiseAlways)
{
RaiseChangedForAll(activeFiles);
}
}
