/// <summary>
/// Duplicates a subprocess handle which was created for piping.
///
/// This is only called when we're duplicating the handle to make it inheritable to the child process. In CPython
/// the parent handle is always reliably garbage collected. Because we know this handle is not going to be
/// used we close the handle being duplicated.
/// </summary>
public static PythonSubprocessHandle DuplicateHandle(CodeContext context,
BigInteger sourceProcess,
PythonSubprocessHandle handle,
BigInteger targetProcess,
int desiredAccess,
bool inherit_handle,
object DUPLICATE_SAME_ACCESS)
{
if (handle._duplicated)
{
// more ref counting issues - when stderr is set to subprocess.STDOUT we can't close the target handle so we need
// to track this situation.
return(DuplicateHandle(context, sourceProcess, (BigInteger)handle, targetProcess, desiredAccess, inherit_handle, DUPLICATE_SAME_ACCESS));
}
var res = DuplicateHandle(context, sourceProcess, (BigInteger)handle, targetProcess, desiredAccess, inherit_handle, DUPLICATE_SAME_ACCESS);
res._duplicated = true;
handle.Close();
return(res);
}
public static void CloseHandle(PythonSubprocessHandle handle)
{
handle.Close();
}
/// <summary>
/// Duplicates a subprocess handle which was created for piping.
///
/// This is only called when we're duplicating the handle to make it inheritable to the child process. In CPython
/// the parent handle is always reliably garbage collected. Because we know this handle is not going to be
/// used we close the handle being duplicated.
/// </summary>
public static PythonSubprocessHandle DuplicateHandle(CodeContext context,
BigInteger sourceProcess,
PythonSubprocessHandle handle,
BigInteger targetProcess,
int desiredAccess,
bool inherit_handle,
object DUPLICATE_SAME_ACCESS) {
if (handle._duplicated) {
// more ref counting issues - when stderr is set to subprocess.STDOUT we can't close the target handle so we need
// to track this situation.
return DuplicateHandle(context, sourceProcess, (BigInteger)handle, targetProcess, desiredAccess, inherit_handle, DUPLICATE_SAME_ACCESS);
}
var res = DuplicateHandle(context, sourceProcess, (BigInteger)handle, targetProcess, desiredAccess, inherit_handle, DUPLICATE_SAME_ACCESS);
res._duplicated = true;
handle.Close();
return res;
}
