增加日志，完善逻辑
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jiangqun.chen
@@ -144,15 +144,165 @@ namespace WinISP.BaseClass
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}
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}
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private readonly object _graphicsCardLock = new object();
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private volatile bool _isDisposing = false;
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private void FreeGraphicsCardCtrl()
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{
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// Free the GCHandle.
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frmISP.WriteLog("Free the GCHandle.", "debug");
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if (gch.IsAllocated)
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gch.Free();
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DisposeGraphicCardCtrl();
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pGraphicCardCtrl = IntPtr.Zero;
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_IsInit = false;
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lock (_graphicsCardLock)
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{
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// 防止重复释放
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if (_isDisposing)
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{
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frmISP.WriteLog("Graphics card control is already being disposed, skipping.", "warn");
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return;
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}
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if (!_IsInit)
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{
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frmISP.WriteLog("Graphics card control is not initialized, nothing to free.", "debug");
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return;
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}
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_isDisposing = true;
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try
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{
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// 第一步：释放 GCHandle
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FreeGCHandle();
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// 第二步：释放图形卡控制资源
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DisposeGraphicsCardControl();
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// 第三步：清空指针
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pGraphicCardCtrl = IntPtr.Zero;
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// 第四步：更新状态
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_IsInit = false;
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frmISP.WriteLog("Graphics card control freed successfully.", "info");
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}
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catch (Exception ex)
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{
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frmISP.WriteLog($"Error freeing graphics card control: {ex.GetType().Name} - {ex.Message}", "error");
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// 即使出错也要尝试清理状态
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try
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{
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pGraphicCardCtrl = IntPtr.Zero;
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_IsInit = false;
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}
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catch (Exception cleanupEx)
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{
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frmISP.WriteLog($"Error during cleanup after exception: {cleanupEx.Message}", "error");
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}
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}
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finally
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{
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_isDisposing = false;
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}
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}
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}
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/// <summary>
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/// 安全释放 GCHandle
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/// </summary>
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private void FreeGCHandle()
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{
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try
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{
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if (gch.IsAllocated)
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{
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frmISP.WriteLog("Freeing GCHandle...", "debug");
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gch.Free();
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frmISP.WriteLog("GCHandle freed successfully.", "debug");
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}
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else
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{
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frmISP.WriteLog("GCHandle is not allocated, skipping free operation.", "debug");
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}
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}
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catch (InvalidOperationException ex)
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{
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frmISP.WriteLog($"InvalidOperationException when freeing GCHandle: {ex.Message}", "warn");
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}
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catch (Exception ex)
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{
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frmISP.WriteLog($"Unexpected exception when freeing GCHandle: {ex.GetType().Name} - {ex.Message}", "error");
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}
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}
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/// <summary>
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/// 安全释放图形卡控制资源
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/// </summary>
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private void DisposeGraphicsCardControl()
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{
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try
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{
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if (pGraphicCardCtrl != IntPtr.Zero)
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{
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frmISP.WriteLog("Disposing graphics card control...", "debug");
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DisposeGraphicCardCtrl();
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frmISP.WriteLog("Graphics card control disposed successfully.", "debug");
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}
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else
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{
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frmISP.WriteLog("Graphics card control pointer is null, skipping dispose.", "debug");
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}
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}
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catch (AccessViolationException ex)
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{
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frmISP.WriteLog($"AccessViolationException when disposing graphics card control: {ex.Message}", "error");
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}
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catch (ObjectDisposedException ex)
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{
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frmISP.WriteLog($"ObjectDisposedException when disposing graphics card control: {ex.Message}", "warn");
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}
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catch (Exception ex)
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{
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frmISP.WriteLog($"Unexpected exception when disposing graphics card control: {ex.GetType().Name} - {ex.Message}", "error");
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}
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}
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/// <summary>
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/// 验证图形卡控制是否已正确释放
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/// </summary>
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public bool IsGraphicsCardControlFreed()
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{
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lock (_graphicsCardLock)
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{
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return !_IsInit && pGraphicCardCtrl == IntPtr.Zero && !gch.IsAllocated;
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}
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}
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/// <summary>
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/// 强制清理（用于异常恢复）
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/// </summary>
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public void ForceCleanupGraphicsCardCtrl()
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{
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lock (_graphicsCardLock)
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{
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try
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{
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frmISP.WriteLog("Performing force cleanup of graphics card control...", "warn");
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// 强制释放 GCHandle
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if (gch.IsAllocated)
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{
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try { gch.Free(); }
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catch { }
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}
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// 强制清空指针
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pGraphicCardCtrl = IntPtr.Zero;
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_IsInit = false;
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frmISP.WriteLog("Force cleanup completed.", "info");
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}
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catch (Exception ex)
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{
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frmISP.WriteLog($"Error during force cleanup: {ex.Message}", "error");
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}
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}
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}
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public GraphicCardI2CCtrl()
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@@ -125,15 +125,125 @@ namespace WinISP
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public void CheckSingleInstance()
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{
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Process[] thisnameprocesslist;
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string modulename, processname;
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Process p = Process.GetCurrentProcess();
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modulename = p.MainModule.ModuleName.ToString();
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processname = System.IO.Path.GetFileNameWithoutExtension(modulename);
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thisnameprocesslist = Process.GetProcessesByName(processname);
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if (thisnameprocesslist.Length > 1)
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Process currentProcess = null;
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Process[] processList = null;
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try
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{
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Application.Exit();
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currentProcess = Process.GetCurrentProcess();
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// 安全获取模块名称
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if (currentProcess.MainModule == null)
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{
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frmISP.WriteLog("Failed to get MainModule, cannot perform single instance check", "error");
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return;
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}
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string moduleName = currentProcess.MainModule.ModuleName;
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string processName = System.IO.Path.GetFileNameWithoutExtension(moduleName);
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frmISP.WriteLog($"Current process name: {processName}, PID: {currentProcess.Id}", "debug");
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// 获取同名进程列表
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processList = Process.GetProcessesByName(processName);
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frmISP.WriteLog($"Found {processList.Length} process(es) with name '{processName}'", "debug");
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// 检查是否存在多个实例
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if (processList.Length > 1)
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{
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frmISP.WriteLog($"Multiple instances detected ({processList.Length}). Exiting application.", "warn");
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// 可选：激活已存在的实例窗口
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ActivateExistingInstance(processList, currentProcess.Id);
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Application.Exit();
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}
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else
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{
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frmISP.WriteLog("Single instance check passed. Application is running as the only instance.", "debug");
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}
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}
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catch (System.ComponentModel.Win32Exception ex)
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{
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frmISP.WriteLog($"Win32Exception in CheckSingleInstance: {ex.Message}", "error");
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}
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catch (UnauthorizedAccessException ex)
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{
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frmISP.WriteLog($"UnauthorizedAccessException in CheckSingleInstance: {ex.Message}", "error");
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}
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catch (Exception ex)
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{
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frmISP.WriteLog($"Unexpected exception in CheckSingleInstance: {ex.GetType().Name} - {ex.Message}", "error");
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}
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finally
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{
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// 释放 Process 资源
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if (processList != null)
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{
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foreach (var p in processList)
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{
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p?.Dispose();
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}
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}
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currentProcess?.Dispose();
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}
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}
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/// <summary>
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/// 尝试激活已存在的应用实例窗口
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/// </summary>
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private void ActivateExistingInstance(Process[] processList, int currentPid)
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{
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try
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{
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foreach (var process in processList)
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{
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// 跳过当前进程
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if (process.Id == currentPid)
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continue;
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// 尝试获取主窗口句柄
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if (process.MainWindowHandle != IntPtr.Zero)
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{
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// 恢复窗口（如果最小化）
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if (IsWindowMinimized(process.MainWindowHandle))
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{
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ShowWindow(process.MainWindowHandle, 9); // SW_RESTORE
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}
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// 激活窗口
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SetForegroundWindow(process.MainWindowHandle);
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frmISP.WriteLog($"Activated existing instance (PID: {process.Id})", "info");
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return;
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}
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}
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}
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catch (Exception ex)
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{
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frmISP.WriteLog($"Failed to activate existing instance: {ex.Message}", "warn");
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}
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}
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// Windows API 声明
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[System.Runtime.InteropServices.DllImport("user32.dll")]
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private static extern bool SetForegroundWindow(IntPtr hWnd);
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[System.Runtime.InteropServices.DllImport("user32.dll")]
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private static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);
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[System.Runtime.InteropServices.DllImport("user32.dll")]
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private static extern bool IsIconic(IntPtr hWnd);
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private bool IsWindowMinimized(IntPtr hWnd)
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{
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try
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{
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return IsIconic(hWnd);
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}
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catch
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{
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return false;
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}
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}
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