Modularize TF Lite interface definitions and reorganize file structure

PiperOrigin-RevId: 212064501

1 files changed, 45 insertions, 0 deletions

diff --git a/tensorflow/contrib/lite/stderr_reporter.cc b/tensorflow/contrib/lite/stderr_reporter.cc
new file mode 100644
index 0000000000..e29a6345fd
--- /dev/null
+++ b/tensorflow/contrib/lite/stderr_reporter.cc
@@ -0,0 +1,45 @@
+/* Copyright 2017 The TensorFlow Authors. All Rights Reserved.
+
+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 "tensorflow/contrib/lite/stderr_reporter.h"
+#include <cstdarg>
+#include <cstdio>
+
+#ifdef __ANDROID__
+#include <android/log.h>
+#endif
+
+namespace tflite {
+
+int StderrReporter::Report(const char* format, va_list args) {
+#ifdef __ANDROID__
+  // On Android stderr is not captured for applications, only for code run from
+  // the shell. Rather than assume all users will set up a custom error
+  // reporter, let's output to logcat here
+  va_list args_for_log;
+  va_copy(args_for_log, args);
+  __android_log_vprint(ANDROID_LOG_ERROR, "tflite", format, args_for_log);
+  va_end(args_for_log);
+#endif
+  const int result = vfprintf(stderr, format, args);
+  fputc('\n', stderr);
+  return result;
+}
+
+ErrorReporter* DefaultErrorReporter() {
+  static StderrReporter* error_reporter = new StderrReporter;
+  return error_reporter;
+}
+
+}  // namespace tflite