From b09c0e9938f1cc0c9542afd9ec7dbe5d506bf2db Mon Sep 17 00:00:00 2001
From: Sebastian Schmidt <mrschmidt@google.com>
Date: Mon, 17 Oct 2022 15:54:36 -0700
Subject: [PATCH] Internal change

PiperOrigin-RevId: 481761007
---
 mediapipe/calculators/tflite/BUILD                      | 1 +
 mediapipe/calculators/tflite/tflite_model_calculator.cc | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/mediapipe/calculators/tflite/BUILD b/mediapipe/calculators/tflite/BUILD
index 1d2f279a..2007a4fe 100644
--- a/mediapipe/calculators/tflite/BUILD
+++ b/mediapipe/calculators/tflite/BUILD
@@ -331,6 +331,7 @@ cc_library(
         "//mediapipe/framework:calculator_framework",
         "//mediapipe/framework:packet",
         "//mediapipe/framework/port:ret_check",
+        "@com_google_absl//absl/status",
         "@org_tensorflow//tensorflow/lite:framework",
     ],
     alwayslink = 1,
diff --git a/mediapipe/calculators/tflite/tflite_model_calculator.cc b/mediapipe/calculators/tflite/tflite_model_calculator.cc
index d118e878..c347d07f 100644
--- a/mediapipe/calculators/tflite/tflite_model_calculator.cc
+++ b/mediapipe/calculators/tflite/tflite_model_calculator.cc
@@ -16,6 +16,7 @@
 #include <memory>
 #include <string>
 
+#include "absl/status/status.h"
 #include "mediapipe/framework/calculator_framework.h"
 #include "mediapipe/framework/packet.h"
 #include "mediapipe/framework/port/ret_check.h"
@@ -81,6 +82,7 @@ class TfLiteModelCalculator : public CalculatorBase {
     }
 
     if (cc->InputSidePackets().HasTag("MODEL_FD")) {
+#ifdef ABSL_HAVE_MMAP
       model_packet = cc->InputSidePackets().Tag("MODEL_FD");
       const auto& model_fd =
           model_packet.Get<std::tuple<int, size_t, size_t>>();
@@ -89,6 +91,10 @@ class TfLiteModelCalculator : public CalculatorBase {
           tflite::DefaultErrorReporter());
       model = tflite::FlatBufferModel::BuildFromAllocation(
           std::move(model_allocation), tflite::DefaultErrorReporter());
+#elif
+      return absl::FailedPreconditionError(
+          "Loading by file descriptor is not supported on this platform.")
+#endif
     }
 
     RET_CHECK(model) << "Failed to load TfLite model from blob.";