public override Task Register(IEncodableEndpoint endpoint)
{
// bool isNew = false;
// if (!System.IO.File.Exists(@"C:\Development\Projects\CFS\Wellspring\clr\test.dat"))
// {
// isNew = true;
// using (System.IO.File.Open(@"C:\Development\Projects\CFS\Wellspring\clr\test.dat", System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.ReadWrite)) { }
// }
// using (var fs = new FileStream(@"C:\Development\Projects\CFS\Wellspring\clr\test.dat", FileMode.Open, FileAccess.ReadWrite, FileShare.Read))
//#if NETSTANDARD
// using (var mmf = System.IO.MemoryMappedFiles.MemoryMappedFile.CreateFromFile(fs, this.MapName, 1024 * 32, MemoryMappedFileAccess.ReadWrite, HandleInheritability.None, false))
//#else
// using (var mmf = System.IO.MemoryMappedFiles.MemoryMappedFile.CreateFromFile(fs, this.MapName, 1024 * 32, MemoryMappedFileAccess.ReadWrite, null, HandleInheritability.None, false))
//#endif
using (var mmf = MemoryMappedFile.OpenExisting("Local\\" + this.MapName, MemoryMappedFileRights.ReadWrite, HandleInheritability.None))
using (var accessor = mmf.CreateViewAccessor(0, 1024 * 32, MemoryMappedFileAccess.ReadWrite))
{
var databaseAccessor = new MemoryMappedDatabaseAccessor(accessor);
//if (isNew)
// databaseAccessor.InitializeDatabase();
var existingRecords = databaseAccessor.ResolveRecords(this.Identifier);
var encodedEndpoint = endpoint.Encode();
var matchedExistingRecord = existingRecords.SingleOrDefault(record => ((System.Collections.IStructuralEquatable)record.Payload).Equals(encodedEndpoint, System.Collections.StructuralComparisons.StructuralEqualityComparer));
if (matchedExistingRecord == null)
{
databaseAccessor.AppendRecord(this.Identifier, encodedEndpoint);
}
else if (DateTime.UtcNow.ToUnixTimestamp() - matchedExistingRecord.Timestamp > 60)
{
databaseAccessor.UpdateRecord(matchedExistingRecord.Offset, this.Identifier, encodedEndpoint);
}
}
return(Task.FromResult(true));
}
private IEnumerable <MemoryMappedDatabaseRecord> ResolveValidRecords(MemoryMappedDatabaseAccessor databaseAccessor, string identifier)
{
return(databaseAccessor.ResolveRecords(this.Identifier)
.Where(r => DateTime.UtcNow.ToUnixTimestamp() - r.Timestamp <= 60)
.Where(r => !this.BlacklistedPayloads.Any(br => ((System.Collections.IStructuralEquatable)r.Payload).Equals(br, System.Collections.StructuralComparisons.StructuralEqualityComparer))));
}