MulAvailable

StgSharp.Common/Internal/DefaultLog.cs

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+//-----------------------------------------------------------------------
+// -----------------------------------------------------------------------
+// file="DefaultLog"
+// Project: StgSharp
+// AuthorGroup: Nitload
+// Copyright (c) Nitload. All rights reserved.
+//     
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+//     
+// -----------------------------------------------------------------------
+// -----------------------------------------------------------------------
+using StgSharp.Graphics.OpenGL;
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Threading;
+
+namespace StgSharp.Internal
+{
+    internal static unsafe partial class DefaultLog
+    {
+
+        private const long MaxLogFileSize = 10 * 1024 * 1024; // 10 MB
+
+        private static LogType _currentLogLevel = LogType.Info;
+
+        internal static readonly GCHandle ssc_logHandle =
+            GCHandle.Alloc(new byte[512], GCHandleType.Pinned);
+
+        internal static SemaphoreSlim logSyncSemaphore = new(1, 1);
+
+        internal static void InternalAppendLog(string log)
+        {
+            if (!File.Exists(Native.LogPath))
+            {
+                FileStream stream = File.Create(Native.LogPath);
+                stream.Close();
+            }
+
+            using (StreamWriter logStream = File.AppendText(Native.LogPath)) {
+                logStream.WriteLine(log);
+            }
+        }
+
+        internal static void InternalWriteLog(string logLine, LogType logType)
+        {
+            if (logType < _currentLogLevel) {
+                return;
+            }
+
+            logSyncSemaphore.Wait();
+            try
+            {
+                RotateLogFile();
+
+                if (!File.Exists(Native.LogPath))
+                {
+                    FileStream stream = File.Create(Native.LogPath);
+                    stream.Close();
+                }
+
+                using (StreamWriter logStream = File.AppendText(Native.LogPath)) {
+                    logStream.WriteLine($"[{DateTime.Now:yyyy-MM-dd HH:mm:ss.fff}] [{logType}] {logLine}");
+                }
+            }
+            finally
+            {
+                _ = logSyncSemaphore.Release();
+            }
+        }
+
+        internal static void InternalWriteLog(string beforeTime, string logLine, LogType logType)
+        {
+            logSyncSemaphore.Wait();
+            if (!File.Exists(Native.LogPath))
+            {
+                FileStream stream = File.Create(Native.LogPath);
+                stream.Close();
+            }
+
+            using (StreamWriter logStream = File.AppendText(Native.LogPath))
+            {
+                logStream.WriteLine(beforeTime);
+                logStream.WriteLine($"[{DateTime.Now:yyyy-MM-dd HH:mm:ss.fff}] [{logType}] {logLine}");
+            }
+            _ = logSyncSemaphore.Release(1);
+        }
+
+        internal static void SetLogLevel(LogType logLevel)
+        {
+            _currentLogLevel = logLevel;
+        }
+
+        private static void RotateLogFile()
+        {
+            if (File.Exists(Native.LogPath) && new FileInfo(Native.LogPath).Length > MaxLogFileSize)
+            {
+                string backupFile = Native.LogPath + ".backup";
+                if (File.Exists(backupFile)) {
+                    File.Delete(backupFile);
+                }
+                File.Move(Native.LogPath, backupFile);
+            }
+        }
+
+    }
+}