public static MatchResult Identify(MatchRequest request)
{
found = false;
//var subset = Cache.Fingerprints[0].Count;
var sw = new Stopwatch();
sw.Start();
var compareTasks = new Task <CompareResult> [ThreadDistribution.Count];
for (int i = 0; i < ThreadDistribution.Count; i++)
{
if (!found)
{
var scanSet = ThreadDistribution[i];
compareTasks[i] = Task <CompareResult> .Factory.StartNew(() => StartMatcherAsync(request, scanSet));
}
}
Task.WaitAll(compareTasks);
sw.Stop();
var status = new StringBuilder();
if (BenchmarkMode)
{
status.Append(ProcessorCores + " Tasks");
}
int totalScanned = 0;
var totalElapsed = new TimeSpan();
var identifyResult = new MatchResult();
identifyResult.RequestDate = request.RequestDate;
identifyResult.ExtraRefCode = request.ExtraRefCode;
foreach (var task in compareTasks)
{
if (task == null || task.Result == null)
{
continue;
}
var result = task.Result;
if (BenchmarkMode)
{
status.Append(string.Format("\r\nFingerPrints: {0}, Duration: {1}", result.Scanned, result.Elapsed));
}
totalElapsed += result.Elapsed;
totalScanned += result.Scanned;
if (result.Result.Found)
{
identifyResult.Found = true;
identifyResult.Score = result.Result.Score;
identifyResult.MemberId = result.Result.MemberId;
//identifyResult.ExtraRefCode = result.Result.ExtraRefCode;
}
}
if (BenchmarkMode)
{
status.Append("\r\n= " + Convert.ToInt32(totalScanned / (totalElapsed.TotalSeconds / ProcessorCores)) +
"/sec, Run time: " + sw.Elapsed + ", found: " + found);
}
identifyResult.Extra = status.ToString();
return(identifyResult);
}
public CompareResult()
{
Result = new MatchResult();
}
private static CompareResult StartMatcherAsync(MatchRequest toMatch, List <int> chaptersToScan)
{
if (BreakOnMatch && found)
{
return new CompareResult {
Elapsed = new TimeSpan(), Scanned = 0
}
}
;
var matcher = CreateMatcher <IFingerprintSdk>();
matcher.Initialize();
var sw = new Stopwatch();
int scanned = 0;
int contextId = 0;
var compareResult = new CompareResult();
sw.Start();
matcher.PreMatch(out contextId);
matcher.IdentifyPrepare(toMatch.Fingerprint, contextId);
foreach (var chapter in chaptersToScan)
{
var chapterFp = Cache.Fingerprints[chapter];
foreach (var fp in chapterFp)
{
if (BreakOnMatch && found)
{
break;
}
MatchResult result = null;
try
{
result = matcher.Identify(fp.Fingerprint, contextId);
}
catch (Exception ex) { throw ex; }
scanned++;
if (result.Found)
{
found = true;
result.MemberId = fp.MemberId;
compareResult.Result = result;
if (BreakOnMatch)
{
break;
}
}
}
}
matcher.PostMatch(contextId);
sw.Stop();
compareResult.Elapsed = sw.Elapsed;
compareResult.Scanned = scanned;
return(compareResult);
}