C#程序保存dump文件
作用
程序异常崩溃前使用此类为进程创建DUMP文件,之后可以使用WinDbg等工具进行分析。
辅助类代码
using System; using System.Diagnostics; using System.IO; using System.Runtime.InteropServices; namespace Infrastructure { public static class MiniDump { // Taken almost verbatim from http://blog.kalmbach-software.de/2008/12/13/writing-minidumps-in-c/ [Flags] public enum Option : uint { // From dbghelp.h: Normal = 0x00000000, WithDataSegs = 0x00000001, WithFullMemory = 0x00000002, WithHandleData = 0x00000004, FilterMemory = 0x00000008, ScanMemory = 0x00000010, WithUnloadedModules = 0x00000020, WithIndirectlyReferencedMemory = 0x00000040, FilterModulePaths = 0x00000080, WithProcessThreadData = 0x00000100, WithPrivateReadWriteMemory = 0x00000200, WithoutOptionalData = 0x00000400, WithFullMemoryInfo = 0x00000800, WithThreadInfo = 0x00001000, WithCodeSegs = 0x00002000, WithoutAuxiliaryState = 0x00004000, WithFullAuxiliaryState = 0x00008000, WithPrivateWriteCopyMemory = 0x00010000, IgnoreInaccessibleMemory = 0x00020000, ValidTypeFlags = 0x0003ffff, } enum ExceptionInfo { None, Present } //typedef struct _MINIDUMP_EXCEPTION_INFORMATION { // DWORD ThreadId; // PEXCEPTION_POINTERS ExceptionPointers; // BOOL ClientPointers; //} MINIDUMP_EXCEPTION_INFORMATION, *PMINIDUMP_EXCEPTION_INFORMATION; [StructLayout(LayoutKind.Sequential, Pack = 4)] // Pack=4 is important! So it works also for x64! struct MiniDumpExceptionInformation { public uint ThreadId; public IntPtr ExceptionPointers; [MarshalAs(UnmanagedType.Bool)] public bool ClientPointers; } //BOOL //WINAPI //MiniDumpWriteDump( // __in HANDLE hProcess, // __in DWORD ProcessId, // __in HANDLE hFile, // __in MINIDUMP_TYPE DumpType, // __in_opt PMINIDUMP_EXCEPTION_INFORMATION ExceptionParam, // __in_opt PMINIDUMP_USER_STREAM_INFORMATION UserStreamParam, // __in_opt PMINIDUMP_CALLBACK_INFORMATION CallbackParam // ); // Overload requiring MiniDumpExceptionInformation [DllImport("dbghelp.dll", EntryPoint = "MiniDumpWriteDump", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Unicode, ExactSpelling = true, SetLastError = true)] static extern bool MiniDumpWriteDump(IntPtr hProcess, uint processId, SafeHandle hFile, uint dumpType, ref MiniDumpExceptionInformation expParam, IntPtr userStreamParam, IntPtr callbackParam); // Overload supporting MiniDumpExceptionInformation == NULL [DllImport("dbghelp.dll", EntryPoint = "MiniDumpWriteDump", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Unicode, ExactSpelling = true, SetLastError = true)] static extern bool MiniDumpWriteDump(IntPtr hProcess, uint processId, SafeHandle hFile, uint dumpType, IntPtr expParam, IntPtr userStreamParam, IntPtr callbackParam); [DllImport("kernel32.dll", EntryPoint = "GetCurrentThreadId", ExactSpelling = true)] static extern uint GetCurrentThreadId(); static bool Write(SafeHandle fileHandle, Option options, ExceptionInfo exceptionInfo) { Process currentProcess = Process.GetCurrentProcess(); IntPtr currentProcessHandle = currentProcess.Handle; uint currentProcessId = (uint)currentProcess.Id; MiniDumpExceptionInformation exp; exp.ThreadId = GetCurrentThreadId(); exp.ClientPointers = false; exp.ExceptionPointers = IntPtr.Zero; if (exceptionInfo == ExceptionInfo.Present) { exp.ExceptionPointers = Marshal.GetExceptionPointers(); } return exp.ExceptionPointers == IntPtr.Zero ? MiniDumpWriteDump(currentProcessHandle, currentProcessId, fileHandle, (uint)options, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero) : MiniDumpWriteDump(currentProcessHandle, currentProcessId, fileHandle, (uint)options, ref exp, IntPtr.Zero, IntPtr.Zero); } static bool Write(SafeHandle fileHandle, Option dumpType) { return Write(fileHandle, dumpType, ExceptionInfo.None); } public static Boolean TryDump(String dmpPath, Option dmpType=Option.Normal) { var path = Path.Combine(Environment.CurrentDirectory, dmpPath); var dir = Path.GetDirectoryName(path); if (dir != null && !Directory.Exists(dir)) { Directory.CreateDirectory(dir); } using (var fs = new FileStream(path, FileMode.Create)) { return Write(fs.SafeFileHandle, dmpType); } } } }
提示
对于Windows Form程序,可以利用AppDomain的UnhandledException事件。以下示例:
namespace WindowsFormsApplication1 { static class Program { /// <summary> /// 应用程序的主入口点。 /// </summary> [STAThread] static void Main() { AppDomain.CurrentDomain.UnhandledException +=new UnhandledExceptionEventHandler((obj,args)=> MiniDump.TryDump("error.dmp")); Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); Application.Run(new Form1()); } } }
出处:https://www.cnblogs.com/beta2013/archive/2011/08/15/3377333.html
==============================================================================
windbg 这个工具可以手动的来抓dump文件,如果你想你的程序智能一些,当遇到你开发的程序crash时,你想程序自己抓到dump文件,然后你去分析就可以。最近我刚好遇到这样一个事情,所以找了找,借助网络和论坛的朋友,才完成了这样一个事情。MiniDumpWriteDump 这个win32 api 可以完成这样一个事情。因为现在使用的是c#,所以封装了一下,本人对托管代码调用那些win api也不是很了解。所以借助了一些朋友来帮忙。
我就 直接贴代码出来吧,运行一下 就知道了,但到目前位置 我还么有对这个测试程序抓到的dump进行过分析。以后在分析吧,现在的机器上没有环境。
using System;using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using System.Diagnostics;
using System.IO;
using System.Threading;
namespace MiniDump
{
class Program
{
static void Main(string[] args)
{
try
{
string a = "";
a = null;
if (a.ToString() == "1")
Console.WriteLine("a is 1");
}
catch
{
MiniDump.TryDump("c:MiniDmp.dmp", MiniDump.MiniDumpType.WithFullMemory);
}
Console.ReadKey();
}
}
///
/// 该类要使用在windows 5.1 以后的版本,如果你的windows很旧,就把Windbg里面的dll拷贝过来,一般都没有问题
/// DbgHelp.dll 是windows自带的 dll文件 。
///
public static class MiniDump
{
/*
* 导入DbgHelp.dll
*/
[DllImport("DbgHelp.dll")]
private static extern Boolean MiniDumpWriteDump(
IntPtr hProcess,
Int32 processId,
IntPtr fileHandle,
MiniDumpType dumpType,
ref MinidumpExceptionInfo excepInfo,
IntPtr userInfo,
IntPtr extInfo );
/*
* MINIDUMP_EXCEPTION_INFORMATION 这个宏的信息
*/
struct MinidumpExceptionInfo
{
public Int32 ThreadId;
public IntPtr ExceptionPointers;
public Boolean ClientPointers;
}
/*
* 自己包装的一个函数
*/
public static Boolean TryDump(String dmpPath, MiniDumpType dmpType)
{
//使用文件流来创健 .dmp文件
using (FileStream stream = new FileStream(dmpPath, FileMode.Create))
{
//取得进程信息
Process process = Process.GetCurrentProcess();
// MINIDUMP_EXCEPTION_INFORMATION 信息的初始化
MinidumpExceptionInfo mei = new MinidumpExceptionInfo();
mei.ThreadId = Thread.CurrentThread.ManagedThreadId;
mei.ExceptionPointers = Marshal.GetExceptionPointers();
mei.ClientPointers = true;
//这里调用的Win32 API
Boolean res = MiniDumpWriteDump(
process.Handle,
process.Id,
stream.SafeFileHandle.DangerousGetHandle(),
dmpType,
ref mei,
IntPtr.Zero,
IntPtr.Zero);
//清空 stream
stream.Flush();
stream.Close();
return res;
}
}
public enum MiniDumpType
{
None = 0x00010000,
Normal = 0x00000000,
WithDataSegs = 0x00000001,
WithFullMemory = 0x00000002,
WithHandleData = 0x00000004,
FilterMemory = 0x00000008,
ScanMemory = 0x00000010,
WithUnloadedModules = 0x00000020,
WithIndirectlyReferencedMemory = 0x00000040,
FilterModulePaths = 0x00000080,
WithProcessThreadData = 0x00000100,
WithPrivateReadWriteMemory = 0x00000200,
WithoutOptionalData = 0x00000400,
WithFullMemoryInfo = 0x00000800,
WithThreadInfo = 0x00001000,
WithCodeSegs = 0x00002000
}
}
}
出处:http://www.111cn.net/net/33/bae2af56ee02cd99daba9a078a311107.htm
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posted on 2019-09-10 21:31 jack_Meng 阅读(4865) 评论(0) 编辑 收藏 举报