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95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include "tensorflow/lite/core/c/common.h"
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namespace tflite {
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namespace {
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int num_delegates_created = 0;
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int num_delegates_destroyed = 0;
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int num_delegates_invoked = 0;
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int options_counter = 0;
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int (*destruction_callback)(const char* s) = nullptr;
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typedef void (*ErrorHandler)(const char*);
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} // namespace
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extern "C" {
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TfLiteDelegate* tflite_plugin_create_delegate(char** options_keys,
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char** options_values,
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size_t num_options,
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ErrorHandler error_handler) {
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num_delegates_created++;
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for (int idx = 0; idx < num_options; idx++) {
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if (std::strcmp("options_counter", options_keys[idx]) == 0) {
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int int_value;
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if (sscanf(options_values[idx], "%d", &int_value) == 1) {
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options_counter += int_value;
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}
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} else if (std::strcmp("fail", options_keys[idx]) == 0) {
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if (error_handler) error_handler("Fail argument sent.");
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return nullptr;
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}
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}
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TfLiteDelegate* ptr = new TfLiteDelegate;
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*ptr = TfLiteDelegateCreate();
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ptr->Prepare = [](TfLiteContext* context, TfLiteDelegate* delegate) {
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num_delegates_invoked++;
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return kTfLiteOk;
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};
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ptr->flags = kTfLiteDelegateFlagsNone;
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return ptr;
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}
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void set_destroy_callback(int (*callback)(const char* s)) {
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destruction_callback = callback;
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}
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void tflite_plugin_destroy_delegate(TfLiteDelegate* delegate) {
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num_delegates_destroyed++;
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delete delegate;
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if (destruction_callback) {
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destruction_callback("test_delegate");
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// destruction_callback is a global variable,
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// so it should be set to nullptr here to avoid crashes
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destruction_callback = nullptr;
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}
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}
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void initialize_counters() {
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num_delegates_created = 0;
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num_delegates_destroyed = 0;
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num_delegates_invoked = 0;
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options_counter = 0;
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}
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int get_num_delegates_created() { return num_delegates_created; }
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int get_num_delegates_destroyed() { return num_delegates_destroyed; }
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int get_num_delegates_invoked() { return num_delegates_invoked; }
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int get_options_counter() { return options_counter; }
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}
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} // namespace tflite
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