ByteScout Barcode Reader SDK – C# – Parallel Decoding

ByteScout Barcode Reader SDK – C# – Parallel Decoding

Program.cs

using System;
using System.IO;
using System.Threading;
using Bytescout.BarCodeReader;

namespace ParallelDecoding
{
class Program
{
const string InputFile = @”.\example.pdf”;

// Limit to 4 threads in queue.
// Set this value to number of your processor cores for max performance.
private static readonly Semaphore ThreadLimiter = new Semaphore(4, 4);

static void Main()
{
const int numberOfRuns = 10;
ManualResetEvent[] doneEvents = new ManualResetEvent[numberOfRuns];

for (int i = 0; i < numberOfRuns; i++) { // Wait for the queue ThreadLimiter.WaitOne(); doneEvents[i] = new ManualResetEvent(false); ThreadPool.QueueUserWorkItem(new WaitCallback(delegate(object state) { int threadIndex = (int) state; Console.WriteLine("Thread #" + threadIndex + " started..."); try { Reader reader = new Reader(); reader.RegistrationName = "demo"; reader.RegistrationKey = "demo"; // Set barcode type to find reader.BarcodeTypesToFind.Code128 = true; // Read barcodes FoundBarcode[] barcodes = reader.ReadFrom(InputFile); Console.WriteLine("Thread #" + threadIndex + " finished with " + barcodes.Length + " barcodes found."); } catch (Exception exception) { Console.WriteLine("Thread #" + threadIndex + " failed with exception:\r\n" + exception.Message); } finally { // Signal the thread is finished doneEvents[threadIndex].Set(); // Release semaphore ThreadLimiter.Release(); } }), i); } WaitHandle.WaitAll(doneEvents); Console.WriteLine("All threads done."); Console.WriteLine(); Console.WriteLine("Press any key to exit..."); Console.ReadKey(); } } } [/csharp]

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