private static void EnumerateChanges(GlobCountSet sourceUidSet, GlobCountSet targetUidSet, uint uidNext, Action <uint> uidInclusionAction, Action <uint> uidExclusionAction)
{
uint highestUid = uidNext - 1U;
if (sourceUidSet == null || targetUidSet == null)
{
return;
}
if (sourceUidSet.IsEmpty && targetUidSet.IsEmpty)
{
return;
}
if (sourceUidSet.IsEmpty)
{
ImapFolderState.PerformAction(targetUidSet, highestUid, uidExclusionAction);
return;
}
if (targetUidSet.IsEmpty)
{
ImapFolderState.PerformAction(sourceUidSet, highestUid, uidInclusionAction);
return;
}
GlobCountSet globCountSet = GlobCountSet.Subtract(sourceUidSet, targetUidSet);
GlobCountSet globCountSet2 = GlobCountSet.Subtract(targetUidSet, sourceUidSet);
if (globCountSet != null && !globCountSet.IsEmpty)
{
ImapFolderState.PerformAction(globCountSet, highestUid, uidInclusionAction);
}
if (globCountSet2 != null && !globCountSet2.IsEmpty)
{
ImapFolderState.PerformAction(globCountSet2, highestUid, uidExclusionAction);
}
}
private static byte[] SerializeUidSet(GlobCountSet uidSet)
{
if (uidSet == null)
{
return(null);
}
return(BufferWriter.Serialize(new BufferWriter.SerializeDelegate(uidSet.Serialize)));
}
internal ImapFolderState(int seqNumCrawl, uint uidNext, uint uidValidity, GlobCountSet uidReadSet, GlobCountSet uidDeletedSet)
{
this.SeqNumCrawl = seqNumCrawl;
this.UidNext = uidNext;
this.UidValidity = uidValidity;
this.uidReadSet = uidReadSet;
this.uidDeletedSet = uidDeletedSet;
}
private static void PerformAction(GlobCountSet uidSet, uint highestUid, Action <uint> action)
{
foreach (GlobCountRange globCountRange in uidSet)
{
uint num = (uint)globCountRange.LowBound;
while (num <= (uint)globCountRange.HighBound && num <= highestUid)
{
action(num);
num += 1U;
}
}
}
private static GlobCountSet ParseUidSet(byte[] input)
{
if (input == null)
{
return(null);
}
GlobCountSet result;
using (BufferReader bufferReader = Reader.CreateBufferReader(input))
{
try
{
result = GlobCountSet.Parse(bufferReader);
}
catch (BufferParseException innerException)
{
throw new CorruptSyncStateException(innerException);
}
}
return(result);
}
internal static ImapFolderState Create(List <MessageRec> messages, int seqNumCrawl, uint uidNext, uint uidValidity)
{
if (messages.Count == 0)
{
return(new ImapFolderState
{
SeqNumCrawl = seqNumCrawl,
UidNext = uidNext,
UidValidity = uidValidity
});
}
Dictionary <uint, MessageRec> dictionary = new Dictionary <uint, MessageRec>();
foreach (MessageRec messageRec in messages)
{
uint key = ImapEntryId.ParseUid(messageRec.EntryId);
dictionary.Add(key, messageRec);
}
GlobCountSet globCountSet = new GlobCountSet();
GlobCountSet globCountSet2 = new GlobCountSet();
for (uint num = uidNext - 1U; num > 0U; num -= 1U)
{
MessageRec messageRec2 = null;
if (!dictionary.TryGetValue(num, out messageRec2))
{
globCountSet2.Insert((ulong)num);
}
else
{
MessageFlags messageFlags = (MessageFlags)((int)messageRec2[PropTag.MessageFlags]);
if (messageFlags.HasFlag(MessageFlags.Read))
{
globCountSet.Insert((ulong)num);
}
}
}
return(new ImapFolderState(seqNumCrawl, uidNext, uidValidity, globCountSet, globCountSet2));
}