CleanCoder

#自动抓取Dump, 当异常信息包含特定字符串
1. procdump.exe -ma -e 1 -f <Exception Content> <PID>
   .i.e. procdump.exe -ma -e 1 -f "Commands ouy of sync" 3368

  -ma	Write a dump file with all process memory. The default dump format only includes thread and handle information.
  -e	Write a dump when the process encounters an unhandled exception. Include the 1 to create dump on first chance exceptions.
  -f	Filter the first chance exceptions. Wildcards (*) are supported. To just display the names without dumping, use a blank ("") filter.
  
  C:\>procdump -e 1 -f "" w3wp.exe
  Display without writing a dump, the exception codes/names of w3wp.exe

CleanCoder

1. A General Fast Method Invoker (https://www.codeproject.com/Articles/14593/A-General-Fast-Method-Invoker)
public static FastInvokeHandler GetMethodInvoker(MethodInfo methodInfo)
{
    DynamicMethod dynamicMethod = new DynamicMethod(string.Empty, 
                     typeof(object), new Type[] { typeof(object), 
                     typeof(object[]) }, 
                     methodInfo.DeclaringType.Module);
    ILGenerator il = dynamicMethod.GetILGenerator();
    ParameterInfo[] ps = methodInfo.GetParameters();
    Type[] paramTypes = new Type[ps.Length];

CleanCoder

struct Result<T> {
    public T Ok { get; }
    public Exception Error { get; }
    public bool IsFailed { get => Error != null; }
    public bool IsOk => !IsFailed;

    public Result (T ok) {
        Ok = ok;
        Error = default (Exception);
    }

CleanCoder

static async Task<T> Otherwise<T> (this Task<T> task, Func<Task<T>> orTask) {
    task.ContinueWith (async innerTask => {
        if (innerTask.Status == TaskStatus.Faulted)
            return await orTask ();

        return await Task.FromResult<T> (innerTask.Result);
    }).Unwrap ();
}

static async Task<T> Retry<T> (Func<Task<T>> task, int retries, TimeSpan delay, CancellationToken cts = default (CancellationToken)) {

CleanCoder

1) 准备工作
.loadby sos clr
.cordll -ve -u -l
.load  <<path>>\sosex.dll
.load  <<path>>\mex.dll
.symfix
.reload

2) 常用方法
!pe [<exceptionAddr>]	most recent exception data (don’t forget the external stack)