public WindowsProcessDataReader(int processId, WindowsProcessDataReaderMode mode)
{
if (mode == WindowsProcessDataReaderMode.Snapshot)
{
_originalPid = processId;
// Throws InvalidOperationException, which is similar to how Process.Start fails if it can't start the process.
Process process = Process.GetProcessById(processId);
int hr = PssCaptureSnapshot(process.Handle, PSS_CAPTURE_FLAGS.PSS_CAPTURE_VA_CLONE, IntPtr.Size == 8 ? 0x0010001F : 0x0001003F, out _snapshotHandle);
if (hr != 0)
{
throw new InvalidOperationException($"Could not create snapshot to process. Error {hr}.");
}
hr = PssQuerySnapshot(_snapshotHandle, PSS_QUERY_INFORMATION_CLASS.PSS_QUERY_VA_CLONE_INFORMATION, out _cloneHandle, IntPtr.Size);
if (hr != 0)
{
throw new InvalidOperationException($"Could not create snapshot to process. Error {hr}.");
}
ProcessId = GetProcessId(_cloneHandle);
}
else
{
ProcessId = processId;
}
_process = WindowsFunctions.NativeMethods.OpenProcess(PROCESS_VM_READ | PROCESS_QUERY_INFORMATION, false, ProcessId);
if (_process == IntPtr.Zero)
{
if (!WindowsFunctions.IsProcessRunning(ProcessId))
{
throw new ArgumentException($"Process {processId} is not running.");
}
int hr = Marshal.GetLastWin32Error();
throw new ArgumentException($"Could not attach to process {processId}, error: {hr:x}");
}
using Process p = Process.GetCurrentProcess();
if (DataTarget.PlatformFunctions.TryGetWow64(p.Handle, out bool wow64) &&
DataTarget.PlatformFunctions.TryGetWow64(_process, out bool targetWow64) &&
wow64 != targetWow64)
{
throw new InvalidOperationException("Mismatched architecture between this process and the target process.");
}
if (mode == WindowsProcessDataReaderMode.Suspend)
{
_suspension = new WindowsThreadSuspender(ProcessId);
}
}
public LiveDataReader(int processId, bool createSnapshot)
{
if (createSnapshot)
{
_originalPid = processId;
// Throws
Process process = Process.GetProcessById(processId);
int hr = PssCaptureSnapshot(process.Handle, PSS_CAPTURE_FLAGS.PSS_CAPTURE_VA_CLONE, IntPtr.Size == 8 ? 0x0010001F : 0x0001003F, out _snapshotHandle);
if (hr != 0)
{
throw new ClrDiagnosticsException($"Could not create snapshot to process. Error {hr}.", ClrDiagnosticsExceptionKind.Unknown, hr);
}
hr = PssQuerySnapshot(_snapshotHandle, PSS_QUERY_INFORMATION_CLASS.PSS_QUERY_VA_CLONE_INFORMATION, out _cloneHandle, IntPtr.Size);
if (hr != 0)
{
throw new ClrDiagnosticsException($"Could not query the snapshot. Error {hr}.", ClrDiagnosticsExceptionKind.Unknown, hr);
}
_pid = GetProcessId(_cloneHandle);
}
else
{
_pid = processId;
}
_process = OpenProcess(PROCESS_VM_READ | PROCESS_QUERY_INFORMATION, false, _pid);
if (_process == IntPtr.Zero)
{
if (!WindowsFunctions.IsProcessRunning(_pid))
{
throw new ArgumentException("The process is not running");
}
int hr = Marshal.GetLastWin32Error();
throw new ClrDiagnosticsException($"Could not attach to process. Error {hr}.", ClrDiagnosticsExceptionKind.Unknown, hr);
}
using Process p = Process.GetCurrentProcess();
if (DataTarget.PlatformFunctions.TryGetWow64(p.Handle, out bool wow64) &&
DataTarget.PlatformFunctions.TryGetWow64(_process, out bool targetWow64) &&
wow64 != targetWow64)
{
throw new ClrDiagnosticsException("Dac architecture mismatch!", ClrDiagnosticsExceptionKind.DacError);
}
}
public DbgEngDataReader(int processId, bool invasive, uint msecTimeout)
{
DisplayName = $"{processId:x}";
IntPtr client = CreateIDebugClient();
CreateClient(client);
DebugAttach attach = invasive ? DebugAttach.Default : DebugAttach.NonInvasive;
_control.AddEngineOptions(DebugControl.INITIAL_BREAK);
HResult hr = _client.AttachProcess((uint)processId, attach);
if (hr)
{
hr = _control.WaitForEvent(msecTimeout);
}
if (hr == HResult.S_FALSE)
{
throw new TimeoutException("Break in did not occur within the allotted timeout.");
}
if (hr != 0)
{
if ((uint)hr.Value == 0xd00000bb)
{
throw new InvalidOperationException("Mismatched architecture between this process and the target process.");
}
if (!WindowsFunctions.IsProcessRunning(processId))
{
throw new ArgumentException($"Process {processId} is not running.");
}
throw new ArgumentException($"Could not attach to process {processId}, HRESULT: 0x{hr:x}");
}
}
