public void MiniDumpCallbackOrderTest()
{
try
{
// Load an exception into the system tables
throw new InvalidOperationException();
}
catch
{
// Test for debug exception info
var memCallbackCalled = false;
using var hFile = CreateFile("CallbackOrder.dmp", Kernel32.FileAccess.GENERIC_READ | Kernel32.FileAccess.GENERIC_WRITE, 0, default, FileMode.Create, FileFlagsAndAttributes.FILE_ATTRIBUTE_NORMAL);
if (!hFile.IsInvalid)
{
var mdei = new MINIDUMP_EXCEPTION_INFORMATION
{
ThreadId = GetCurrentThreadId(),
ExceptionPointers = Marshal.GetExceptionPointers()
};
var mci = new MINIDUMP_CALLBACK_INFORMATION {
CallbackRoutine = MyMiniDumpCallback
};
Assert.That(MiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(), hFile, MINIDUMP_TYPE.MiniDumpNormal, mdei, default, mci), ResultIs.Successful);
public static extern bool MiniDumpWriteDump(
PssSnapshotSafeHandle hpss,
uint processId,
SafeHandle hFile,
MINIDUMP_TYPE dumpType,
IntPtr expParam,
IntPtr userStreamParam,
[In] ref MINIDUMP_CALLBACK_INFORMATION callbackParam);
public static void SnapshotAndDump(this Process process, string dumpFile, MINIDUMP_TYPE dumpType)
{
using (var fs = new FileStream(dumpFile, FileMode.Create, FileAccess.ReadWrite, FileShare.None))
{
using (var pssSnapshot = PssSnapshotSafeHandle.CaptureSnapshot(process.Handle))
{
bool PssSnapshotMinidumpCallback(IntPtr unused, ref MINIDUMP_CALLBACK_INPUT input, ref MINIDUMP_CALLBACK_OUTPUT output)
{
const int S_OK = 0;
const int S_FALSE = 1;
switch (input.CallbackType)
{
case MINIDUMP_CALLBACK_TYPE.IsProcessSnapshotCallback:
// The target is always a snapshot.
output.Status = S_FALSE;
break;
case MINIDUMP_CALLBACK_TYPE.ReadMemoryFailureCallback:
// Ignore any read failures during dump generation.
output.Status = S_OK;
break;
}
return(true);
}
var callbackParam = new MINIDUMP_CALLBACK_INFORMATION
{
CallbackParam = IntPtr.Zero,
CallbackRoutine = PssSnapshotMinidumpCallback
};
if (!MiniDumpWriteDump(pssSnapshot, (uint)process.Id, fs.SafeFileHandle, dumpType | MINIDUMP_TYPE.IgnoreInaccessibleMemory, IntPtr.Zero, IntPtr.Zero, ref callbackParam))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
}
}