chore: import upstream snapshot with attribution

samples/trtSafeExec/delayStreamKernel.cu

@@ -0,0 +1,49 @@
+/*
+* SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "delayStreamKernel.h"
+
+#include <tuple>
+
+#ifndef TRT_SAFETY_INFERENCE_ONLY
+namespace
+{
+__global__ void delayKernel(long long nanoSeconds)
+{
+    // It is supported with compute capability 7.0 or higher.
+    __nanosleep(nanoSeconds);
+}
+} // namespace
+#endif // TRT_SAFETY_INFERENCE_ONLY
+
+namespace nvinfer1
+{
+cudaError_t delayStream(cudaStream_t stream, float timeInMsec) noexcept
+{
+#ifndef TRT_SAFETY_INFERENCE_ONLY
+    auto nanoSeconds = static_cast<long long>(1000000 * timeInMsec);
+    delayKernel<<<1, 1, 0, stream>>>(nanoSeconds);
+    return cudaGetLastError();
+#else
+    // QNX SafeCUDA does not support PTX JIT or __cudaLaunchKernel; the delay is
+    // optional timing-measurement padding and has no effect on inference correctness.
+    std::ignore = stream;
+    std::ignore = timeInMsec;
+    return cudaSuccess;
+#endif // TRT_SAFETY_INFERENCE_ONLY
+}
+} // namespace nvinfer1