protected virtual void Dispose(bool disposing)
{
if (disposed)
{
return;
}
// Free the attribute list
if (StartupInfo.lpAttributeList != IntPtr.Zero)
{
ProcessApi.DeleteProcThreadAttributeList(StartupInfo.lpAttributeList);
Marshal.FreeHGlobal(StartupInfo.lpAttributeList);
}
// Close process and thread handles
if (ProcessInfo.hProcess != IntPtr.Zero)
{
ConsoleApi.CloseHandle(ProcessInfo.hProcess);
}
if (ProcessInfo.hThread != IntPtr.Zero)
{
ConsoleApi.CloseHandle(ProcessInfo.hThread);
}
disposed = true;
}
private static StartInfoExtended ConfigureProcessThread(IntPtr hPC, IntPtr attributes)
{
// this method implements the behavior described in https://docs.microsoft.com/en-us/windows/console/creating-a-pseudoconsole-session#preparing-for-creation-of-the-child-process
var lpSize = IntPtr.Zero;
var success = ProcessApi.InitializeProcThreadAttributeList(
lpAttributeList: IntPtr.Zero,
dwAttributeCount: 1,
dwFlags: 0,
lpSize: ref lpSize
);
if (success || lpSize == IntPtr.Zero) // we're not expecting `success` here, we just want to get the calculated lpSize
{
throw InteropException.CreateWithInnerHResultException("Could not calculate the number of bytes for the attribute list.");
}
var startupInfo = new StartInfoExtended();
startupInfo.StartupInfo.cb = Marshal.SizeOf <StartInfoExtended>();
startupInfo.lpAttributeList = Marshal.AllocHGlobal(lpSize);
success = ProcessApi.InitializeProcThreadAttributeList(
lpAttributeList: startupInfo.lpAttributeList,
dwAttributeCount: 1,
dwFlags: 0,
lpSize: ref lpSize
);
if (!success)
{
throw InteropException.CreateWithInnerHResultException("Could not set up attribute list.");
}
success = ProcessApi.UpdateProcThreadAttribute(
lpAttributeList: startupInfo.lpAttributeList,
dwFlags: 0,
attribute: attributes,
lpValue: hPC,
cbSize: (IntPtr)IntPtr.Size,
lpPreviousValue: IntPtr.Zero,
lpReturnSize: IntPtr.Zero
);
if (!success)
{
throw InteropException.CreateWithInnerHResultException("Could not set pseudoconsole thread attribute.");
}
return(startupInfo);
}