6๋ฒˆ์งธ ์Šคํ„ฐ๋””

2022. 4. 9. 23:55ยท๐Ÿ’ป Programming Language/C#

๊ณผ์ œ

[๊ตฌํ˜„๋‚ด์šฉ]

  1. ์ž…๋ ฅ Thread ๋Š” ์ž‘์—… ์ˆœ์„œ์™€ ์ž‘์—… ๋‚ด์šฉ์„ ์ฒ˜๋ฆฌ Thread๋กœ ์ „๋‹ฌํ•˜๊ณ  ์ฒ˜๋ฆฌ Thread๋Š” ์ž‘์—… ์ˆœ์„œ๋ฅผ ๊ธฐ์ค€์œผ๋กœ ์ž‘์—… ๋‚ด์šฉ์„ ์ •๋ฆฌํ•˜์—ฌ ์ถœ๋ ฅ
  • ์กฐ๊ฑด

    • ์ž…๋ ฅ Thread

      • 2๊ฐœ Thread
      • ๋ฏธ๋ฆฌ ์ •์˜๋œ ํŒŒ์ผ ์„ ์ฝ์–ด์„œ ์ฒ˜๋ฆฌ Thread๋กœ ์ „๋‹ฌ
      • ํŒŒ์ผ์„ ๋‹ค ์ฝ์œผ๋ฉด Thread ์ข…๋ฃŒ
    • ์ฒ˜๋ฆฌ Thread

      • 1๊ฐœ Thread
      • ์ž…๋ ฅ Thread์™€ ๊ณตํ†ต์ ์œผ๋กœ ์‚ฌ์šฉํ•  List ์ƒ์„ฑ
      • ์ฒ˜์Œ ์ž‘์—…์ด ์ž…๋ ฅ๋  ๋•Œ ๊นŒ์ง€ ์ฒ˜๋ฆฌ ์ž‘์—…์„ ์ง„ํ–‰ํ•˜์ง€ ์•Š์Œ(์ฒ˜์Œ ์ž‘์—… ๋ฒˆํ˜ธ 0)
      • ๋งˆ์ง€๋ง‰ ์ž‘์—…์ด ์ž…๋ ฅ๋˜๋ฉด Thread ์ข…๋ฃŒ (9๋ฒˆ ์ž‘์—…์ด ์ž…๋ ฅ๋˜๋ฉด ์ข…๋ฃŒ)

๊ตฌํ˜„ ์ฝ”๋“œ

using System;
using System.IO;
using System.Collections.Generic;
using System.Threading.Tasks;

namespace ThreadEx
{
    class MainApp
    {
        static List<(string, string)> list = new List<(string, string)>();

        static void Main(string[] args)
        {
            Action<object> readFile = (object obj) =>
            {
                string c = (string)obj;
                StreamReader sr = new StreamReader(new FileStream("c:\\test\\a" + c + ".txt", FileMode.Open));

                while (sr.EndOfStream == false)
                {
                    string str = sr.ReadLine();
                    string[] word = str.Split(',');
                    lock (list)
                    {
                        list.Add((word[0], word[1]));
                    }
                }
                sr.Close();
            };

            Action readList = () =>
            {
                int index = 0;

                while (index < 10)
                {
                    if(list.Count > 0) { 
                        list.Sort();
                        if (index.ToString() == list[0].Item1) {
                            Console.WriteLine($"{list[0].Item1} : {list[0].Item2}");
                            list.RemoveAt(0);
                            index++;
                        }
                    }
                    else
                    {
                        continue;
                    }
                }
            };

            Task t1 = new Task(readFile, "1");

            Task t2 = new Task(readFile, "2");

            Task t3 = new Task(readList);

            t3.Start();
            t1.Start();
            t2.Start();

            t1.Wait();
            t2.Wait();
            t3.Wait();

        }
    }
}
Output

0 : 0๋ฒˆ์ž‘์—…
1 : 1๋ฒˆ์ž‘์—…
2 : 2๋ฒˆ์ž‘์—…
3 : 3๋ฒˆ์ž‘์—…
4 : 4๋ฒˆ์ž‘์—…
5 : 5๋ฒˆ์ž‘์—…
6 : 6๋ฒˆ์ž‘์—…
7 : 7๋ฒˆ์ž‘์—…
8 : 8๋ฒˆ์ž‘์—…
9 : 9๋ฒˆ์ž‘์—…
  • ์œ„์˜ ์ฝ”๋“œ๋Š” 3๊ฐœ์˜ ์Šค๋ ˆ๋“œ์— ์˜ํ•ด ํŒŒ์ผ์„ ์ฝ๊ณ  ๋‚ด์šฉ์„ ์ถœ๋ ฅํ•œ๋‹ค.
  • ์Šค๋ ˆ๋“œ์˜ ์‹คํ–‰์ˆœ์„œ๋Š” ์ฒ˜๋ฆฌThread => ์ž…๋ ฅThread1 => ์ž…๋ ฅThread2 ์ด๋‹ค.
  • ์ด๋ ‡๊ฒŒ ์‹คํ–‰์ˆœ์„œ๋ฅผ ์ •์˜ํ•œ ์ด์œ ๋Š” ๋งŒ์ผ ํŒŒ์ผํฌ๊ธฐ๊ฐ€ ๊ต‰์žฅํžˆ ํฌ๊ณ  ์ž…๋ ฅ Thread๊ฐ€ ๋จผ์ € ์‹คํ–‰๋œ๋‹ค๋ฉด ์ฒ˜๋ฆฌ ์Šค๋ ˆ๋“œ๊ฐ€ ์ผœ์ง€๋ฉด์„œ ์ฒ˜๋ฆฌํ•ด์•ผ๋  ๋ฆฌ์ŠคํŠธ์˜ ํฌ๊ธฐ๊ฐ€ ๊ต‰์žฅํžˆ ํด ์ˆ˜๋„ ์žˆ์„ ๋ฟ๋”๋Ÿฌ ๋งŒ์ผ List์˜ ์ตœ๋Œ€ ํฌ๊ธฐ๋ฅผ ๋„˜์–ด์„ ๋‹ค๋ฉด ํ”„๋กœ๊ทธ๋žจ์ด ๋น„์ •์ƒ์ ์œผ๋กœ ์ž‘๋™ํ•  ์ˆ˜ ์žˆ๋‹ค. => ์ด๋Ÿฌํ•œ ์ด์œ ๋กœ ํ˜„์žฌ ๊ฐœ๋ฐœํ•˜์‹ค ๋•Œ์—๋„ ์ฒ˜๋ฆฌThread๋ฅผ ๋จผ์ € ๋™์ž‘์‹œํ‚จ ํ›„ ์ž…๋ ฅ Thread๋ฅผ ๋™์ž‘์‹œํ‚จ๋‹ค๊ณ  ํ•จ.
  • ์ถ”๊ฐ€๋‚ด์šฉ : ํ•˜๋‚˜์˜ ๊ฐ์ฒด์— ํ• ๋‹นํ•  ์ˆ˜ ์žˆ๋Š” ์ตœ๋Œ€ ํฌ๊ธฐ => LargeObject๋ฅผ ์ด์šฉํ•ด์„œ ์ดˆ๊ณผํ•  ์ˆ˜ ์žˆ์Œ

์ถ”๊ฐ€๋‚ด์šฉ

  • Entity Framework ORM ์ธ์Šคํ„ด์Šค ์ƒ์„ฑ ์˜ˆ์ œ ๊ต์œก๋ฐ›๊ธฐ๋กœ ํ–ˆ์Œ!

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