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dedicated lock objects for safety

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This commit is contained in:
Robert McRackan
2021-09-24 11:46:37 -04:00
parent d2eaf26117
commit fd56017af5
3 changed files with 13 additions and 13 deletions
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16
FileManager/BackgroundFileSystem.cs
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@@ -25,6 +25,8 @@ namespace FileManager
private FileSystemWatcher fileSystemWatcher { get; set; }
private BlockingCollection<FileSystemEventArgs> directoryChangesEvents { get; set; }
private Task backgroundScanner { get; set; }
private object fsCacheLocker { get; } = new();
private List<string> fsCache { get; } = new();
public BackgroundFileSystem(string rootDirectory, string searchPattern, SearchOption searchOptions)
@@ -38,15 +40,13 @@ namespace FileManager
public string FindFile(string regexPattern, RegexOptions options)
{
lock (fsCache)
{
lock (fsCacheLocker)
return fsCache.FirstOrDefault(s => Regex.IsMatch(s, regexPattern, options));
}
}
public void RefreshFiles()
{
lock (fsCache)
lock (fsCacheLocker)
{
fsCache.Clear();
fsCache.AddRange(Directory.EnumerateFiles(RootDirectory, SearchPattern, SearchOption));
@@ -57,7 +57,7 @@ namespace FileManager
{
Stop();
lock (fsCache)
lock (fsCacheLocker)
fsCache.AddRange(Directory.EnumerateFiles(RootDirectory, SearchPattern, SearchOption));
directoryChangesEvents = new BlockingCollection<FileSystemEventArgs>();
@@ -86,7 +86,7 @@ namespace FileManager
//Dispose of directoryChangesEvents after backgroundScanner exists.
directoryChangesEvents?.Dispose();
lock (fsCache)
lock (fsCacheLocker)
fsCache.Clear();
}
@@ -106,7 +106,7 @@ namespace FileManager
{
while (directoryChangesEvents.TryTake(out FileSystemEventArgs change, -1))
{
lock (fsCache)
lock (fsCacheLocker)
UpdateLocalCache(change);
}
}
@@ -146,9 +146,7 @@ namespace FileManager
private void AddUniqueFiles(IEnumerable<string> newFiles)
{
foreach (var file in newFiles)
{
AddUniqueFile(file);
}
}
private void AddUniqueFile(string newFile)
{