92 lines
3.3 KiB
C#
92 lines
3.3 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Threading.Tasks;
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namespace ShowTrend3.Libs
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{
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public static class TempDir
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{
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//private const char Slash = '\\';
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private const char Slash = '/';
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public enum Status { free, write, read };
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private static Dictionary<string, int> readFile = new Dictionary<string, int>();
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private static List<string> writeFile = new List<string>();
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public static void Clear()
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{
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try
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{
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var tempDir = Directory.GetCurrentDirectory() + Slash + "temp";
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if (!Directory.Exists(tempDir))
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Directory.CreateDirectory(tempDir);
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string[] files = Directory.GetFiles(tempDir, "*");
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foreach (var e in files)
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{
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if (readFile.ContainsKey(e.Split(Slash).Last()) || writeFile.Contains(e.Split(Slash).Last()))
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continue;
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DateTime createDate = File.GetCreationTime(e);
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bool flag = createDate.Year == DateTime.Now.Year &&
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createDate.Month == DateTime.Now.Month &&
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createDate.Day == DateTime.Now.Day &&
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(DateTime.Now - createDate).TotalMinutes > 2;
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flag |= createDate.Day == DateTime.Now.AddDays(-1).Day &&
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DateTime.Now.Hour == 0 &&
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(DateTime.Now - createDate).TotalMinutes > 2;
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flag |= (DateTime.Now - createDate).TotalHours > 1;
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if (flag)
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File.Delete(e);
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}
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}
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catch (Exception e)
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{
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Console.WriteLine(e.Message);
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}
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}
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public static bool CheckFileExist(string onlyName)
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{
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return writeFile.Contains(onlyName) ||
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File.Exists(Directory.GetCurrentDirectory() + Slash + "temp" + Slash + onlyName);
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}
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public static FileStream StartWrite(string onlyName)
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{
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writeFile.Add(onlyName);
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return new FileStream(Directory.GetCurrentDirectory() + Slash + "temp" + Slash + onlyName, FileMode.CreateNew);
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}
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public static void EndWrite(string onlyName)
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{
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writeFile.Remove(onlyName);
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}
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public static void LockRead(string onlyName)
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{
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if (!readFile.ContainsKey(onlyName))
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readFile.Add(onlyName, 0);
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readFile[onlyName]++;
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}
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public static bool CanRead(string onlyName)
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{
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if (!CheckFileExist(onlyName))
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return false;
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return !writeFile.Contains(onlyName);
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}
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public static FileStream StartRead(string onlyName)
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{
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return new FileStream(Directory.GetCurrentDirectory() + Slash + "temp" + Slash + onlyName, FileMode.Open);
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}
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public static void FreeRead(string onlyName)
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{
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if (!readFile.ContainsKey(onlyName))
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return;
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if (readFile[onlyName] > 0)
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readFile[onlyName]--;
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if (readFile[onlyName] == 0)
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readFile.Remove(onlyName);
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}
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}
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}
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