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Fix errors that collections has been changed while foreach collections

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This commit is contained in:
qianlifeng 2014-11-04 18:21:07 +08:00
parent 3c4a9a05a0
commit 5855ff0d27
1 changed files with 21 additions and 10 deletions
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31
Plugins/Wox.Plugin.FindFile/MFTSearch/MFTSearcherCache.cs
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@ -7,6 +7,7 @@ namespace Wox.Plugin.FindFile.MFTSearch
internal class MFTSearcherCache
{
public Dictionary<string, Dictionary<ulong, USNRecord>> VolumeRecords = new Dictionary<string, Dictionary<ulong, USNRecord>>();
public static object locker = new object();
public MFTSearcherCache() { }
@ -26,7 +27,10 @@ namespace Wox.Plugin.FindFile.MFTSearch
EnsureVolumeExistInHashTable(volume);
if (!VolumeRecords[volume].ContainsKey(record.FRN))
{
VolumeRecords[volume].Add(record.FRN, record);
lock (locker)
{
VolumeRecords[volume].Add(record.FRN, record);
}
}
}
@ -47,7 +51,10 @@ namespace Wox.Plugin.FindFile.MFTSearch
{
if (hashtable.ContainsKey(volume) && hashtable[volume].ContainsKey(frn))
{
hashtable[volume].Remove(frn);
lock (locker)
{
hashtable[volume].Remove(frn);
}
return true;
}
else
@ -65,7 +72,10 @@ namespace Wox.Plugin.FindFile.MFTSearch
{
if (source.ContainsKey(volume) && source[volume].ContainsKey(record.FRN))
{
source[volume][record.FRN] = record;
lock (locker)
{
source[volume][record.FRN] = record;
}
return true;
}
else
@ -77,20 +87,21 @@ namespace Wox.Plugin.FindFile.MFTSearch
public List<USNRecord> FindByName(string filename, long maxResult = -1)
{
List<USNRecord> result = new List<USNRecord>();
foreach (Dictionary<ulong, USNRecord> dictionary in VolumeRecords.Values)
lock (locker)
{
foreach (var usnRecord in dictionary)
foreach (Dictionary<ulong, USNRecord> dictionary in VolumeRecords.Values)
{
if (usnRecord.Value.Name.IndexOf(filename, StringComparison.OrdinalIgnoreCase) >= 0)
foreach (var usnRecord in dictionary)
{
result.Add(usnRecord.Value);
if (usnRecord.Value.Name.IndexOf(filename, StringComparison.OrdinalIgnoreCase) >= 0)
{
result.Add(usnRecord.Value);
if (maxResult > 0 && result.Count() >= maxResult) break;
}
if (maxResult > 0 && result.Count() >= maxResult) break;
}
if (maxResult > 0 && result.Count() >= maxResult) break;
}
}
return result;
}