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0001 // Copyright (c) Microsoft Corporation. All rights reserved.
0002 // Licensed under the MIT License.
0003 
0004 // Do not include this file directly. Please include "onnxruntime_cxx_api.h" instead.
0005 // If interested in trying out features of the new experimental C++ API, include "experimental_onnxruntime_cxx_api.h" instead.
0006 //
0007 // These are the inline implementations of the C++ header APIs. They're in this separate file as to not clutter
0008 // the main C++ file with implementation details.
0009 
0010 #include <algorithm>
0011 #include <functional>
0012 #include <iterator>
0013 #include <type_traits>
0014 
0015 // Convert OrtStatus to Ort::Status and return
0016 // instead of throwing
0017 #define ORT_CXX_RETURN_ON_API_FAIL(expression) \
0018   {                                            \
0019     auto ort_status = (expression);            \
0020     if (ort_status) {                          \
0021       return Ort::Status(ort_status);          \
0022     }                                          \
0023   }
0024 
0025 #ifdef __cpp_if_constexpr
0026 #define ORT_CXX_IF_CONSTEXPR if constexpr
0027 #else
0028 #define ORT_CXX_IF_CONSTEXPR if
0029 #endif
0030 
0031 namespace Ort {
0032 
0033 namespace detail {
0034 inline void ThrowStatus(const Status& st) {
0035   std::string error_message = st.GetErrorMessage();
0036   OrtErrorCode error_code = st.GetErrorCode();
0037   ORT_CXX_API_THROW(std::move(error_message), error_code);
0038 }
0039 }  // namespace detail
0040 
0041 inline void ThrowOnError(OrtStatus* ort_status) {
0042   if (ort_status) {
0043     Ort::Status st(ort_status);
0044     detail::ThrowStatus(st);
0045   }
0046 }
0047 
0048 inline void ThrowOnError(const Status& st) {
0049   if (st) {
0050     detail::ThrowStatus(st);
0051   }
0052 }
0053 
0054 inline Status::Status(OrtStatus* status) noexcept : Base<OrtStatus>{status} {
0055 }
0056 
0057 inline Status::Status(const std::exception& e) noexcept {
0058   p_ = GetApi().CreateStatus(ORT_FAIL, e.what());
0059 }
0060 
0061 inline Status::Status(const Exception& e) noexcept {
0062   p_ = GetApi().CreateStatus(e.GetOrtErrorCode(), e.what());
0063 }
0064 
0065 inline Status::Status(const char* message, OrtErrorCode code) noexcept {
0066   p_ = GetApi().CreateStatus(code, message);
0067 }
0068 
0069 inline std::string Status::GetErrorMessage() const {
0070   std::string message(GetApi().GetErrorMessage(p_));
0071   return message;
0072 }
0073 
0074 inline OrtErrorCode Status::GetErrorCode() const {
0075   return GetApi().GetErrorCode(p_);
0076 }
0077 
0078 inline bool Status::IsOK() const noexcept {
0079   return (p_ == nullptr);
0080 }
0081 
0082 // This template converts a C++ type into it's ONNXTensorElementDataType
0083 template <typename T>
0084 struct TypeToTensorType;
0085 template <>
0086 struct TypeToTensorType<float> {
0087   static constexpr ONNXTensorElementDataType type = ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT;
0088 };
0089 template <>
0090 struct TypeToTensorType<Float16_t> {
0091   static constexpr ONNXTensorElementDataType type = ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT16;
0092 };
0093 template <>
0094 struct TypeToTensorType<BFloat16_t> {
0095   static constexpr ONNXTensorElementDataType type = ONNX_TENSOR_ELEMENT_DATA_TYPE_BFLOAT16;
0096 };
0097 template <>
0098 struct TypeToTensorType<double> {
0099   static constexpr ONNXTensorElementDataType type = ONNX_TENSOR_ELEMENT_DATA_TYPE_DOUBLE;
0100 };
0101 template <>
0102 struct TypeToTensorType<int8_t> {
0103   static constexpr ONNXTensorElementDataType type = ONNX_TENSOR_ELEMENT_DATA_TYPE_INT8;
0104 };
0105 template <>
0106 struct TypeToTensorType<int16_t> {
0107   static constexpr ONNXTensorElementDataType type = ONNX_TENSOR_ELEMENT_DATA_TYPE_INT16;
0108 };
0109 template <>
0110 struct TypeToTensorType<int32_t> {
0111   static constexpr ONNXTensorElementDataType type = ONNX_TENSOR_ELEMENT_DATA_TYPE_INT32;
0112 };
0113 template <>
0114 struct TypeToTensorType<int64_t> {
0115   static constexpr ONNXTensorElementDataType type = ONNX_TENSOR_ELEMENT_DATA_TYPE_INT64;
0116 };
0117 template <>
0118 struct TypeToTensorType<uint8_t> {
0119   static constexpr ONNXTensorElementDataType type = ONNX_TENSOR_ELEMENT_DATA_TYPE_UINT8;
0120 };
0121 template <>
0122 struct TypeToTensorType<uint16_t> {
0123   static constexpr ONNXTensorElementDataType type = ONNX_TENSOR_ELEMENT_DATA_TYPE_UINT16;
0124 };
0125 template <>
0126 struct TypeToTensorType<uint32_t> {
0127   static constexpr ONNXTensorElementDataType type = ONNX_TENSOR_ELEMENT_DATA_TYPE_UINT32;
0128 };
0129 template <>
0130 struct TypeToTensorType<uint64_t> {
0131   static constexpr ONNXTensorElementDataType type = ONNX_TENSOR_ELEMENT_DATA_TYPE_UINT64;
0132 };
0133 template <>
0134 struct TypeToTensorType<bool> {
0135   static constexpr ONNXTensorElementDataType type = ONNX_TENSOR_ELEMENT_DATA_TYPE_BOOL;
0136 };
0137 
0138 template <>
0139 struct TypeToTensorType<Float8E4M3FN_t> {
0140   static constexpr ONNXTensorElementDataType type = ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT8E4M3FN;
0141 };
0142 template <>
0143 struct TypeToTensorType<Float8E4M3FNUZ_t> {
0144   static constexpr ONNXTensorElementDataType type = ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT8E4M3FNUZ;
0145 };
0146 template <>
0147 struct TypeToTensorType<Float8E5M2_t> {
0148   static constexpr ONNXTensorElementDataType type = ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT8E5M2;
0149 };
0150 template <>
0151 struct TypeToTensorType<Float8E5M2FNUZ_t> {
0152   static constexpr ONNXTensorElementDataType type = ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT8E5M2FNUZ;
0153 };
0154 
0155 inline bool BFloat16_t::operator==(const BFloat16_t& rhs) const noexcept {
0156   if (IsNaN() || rhs.IsNaN()) {
0157     // IEEE defines that NaN is not equal to anything, including itself.
0158     return false;
0159   }
0160   return val == rhs.val;
0161 }
0162 
0163 inline bool BFloat16_t::operator<(const BFloat16_t& rhs) const noexcept {
0164   if (IsNaN() || rhs.IsNaN()) {
0165     // IEEE defines that NaN is unordered with respect to everything, including itself.
0166     return false;
0167   }
0168 
0169   const bool left_is_negative = IsNegative();
0170   if (left_is_negative != rhs.IsNegative()) {
0171     // When the signs of left and right differ, we know that left is less than right if it is
0172     // the negative value. The exception to this is if both values are zero, in which case IEEE
0173     // says they should be equal, even if the signs differ.
0174     return left_is_negative && !AreZero(*this, rhs);
0175   }
0176   return (val != rhs.val) && ((val < rhs.val) ^ left_is_negative);
0177 }
0178 
0179 inline MemoryAllocation::MemoryAllocation(OrtAllocator* allocator, void* p, size_t size)
0180     : allocator_(allocator), p_(p), size_(size) {
0181 }
0182 
0183 inline MemoryAllocation::~MemoryAllocation() {
0184   if (p_ != nullptr) {
0185     // We do not throw out of destructor
0186     auto ret = GetApi().AllocatorFree(allocator_, p_);
0187     static_cast<void>(ret);
0188   }
0189 }
0190 
0191 inline MemoryAllocation::MemoryAllocation(MemoryAllocation&& o) noexcept : allocator_(nullptr), p_(nullptr), size_(0) {
0192   *this = std::move(o);
0193 }
0194 
0195 inline MemoryAllocation& MemoryAllocation::operator=(MemoryAllocation&& o) noexcept {
0196   OrtAllocator* alloc = nullptr;
0197   void* p = nullptr;
0198   size_t sz = 0;
0199 
0200   // Swap out this
0201   std::swap(alloc, allocator_);
0202   std::swap(p, p_);
0203   std::swap(sz, size_);
0204 
0205   // Swap with incoming
0206   std::swap(allocator_, o.allocator_);
0207   std::swap(p_, o.p_);
0208   std::swap(size_, o.size_);
0209 
0210   // Destroy this instance if needed
0211   MemoryAllocation this_alloc(alloc, p, sz);
0212   return *this;
0213 }
0214 
0215 namespace detail {
0216 
0217 template <typename T>
0218 inline void* AllocatorImpl<T>::Alloc(size_t size) {
0219   void* out;
0220   ThrowOnError(GetApi().AllocatorAlloc(this->p_, size, &out));
0221   return out;
0222 }
0223 
0224 template <typename T>
0225 inline MemoryAllocation AllocatorImpl<T>::GetAllocation(size_t size) {
0226   void* out;
0227   ThrowOnError(GetApi().AllocatorAlloc(this->p_, size, &out));
0228   MemoryAllocation result(this->p_, out, size);
0229   return result;
0230 }
0231 
0232 template <typename T>
0233 inline void AllocatorImpl<T>::Free(void* p) {
0234   ThrowOnError(GetApi().AllocatorFree(this->p_, p));
0235 }
0236 
0237 template <typename T>
0238 inline ConstMemoryInfo AllocatorImpl<T>::GetInfo() const {
0239   const OrtMemoryInfo* out;
0240   ThrowOnError(GetApi().AllocatorGetInfo(this->p_, &out));
0241   return ConstMemoryInfo{out};
0242 }
0243 
0244 }  // namespace detail
0245 
0246 inline AllocatorWithDefaultOptions::AllocatorWithDefaultOptions() {
0247   ThrowOnError(GetApi().GetAllocatorWithDefaultOptions(&this->p_));
0248 }
0249 
0250 inline Allocator::Allocator(const Session& sess, const OrtMemoryInfo* mem_info) {
0251   ThrowOnError(GetApi().CreateAllocator(sess, mem_info, &this->p_));
0252 }
0253 
0254 namespace detail {
0255 
0256 template <typename T>
0257 inline std::string MemoryInfoImpl<T>::GetAllocatorName() const {
0258   const char* name = nullptr;
0259   ThrowOnError(GetApi().MemoryInfoGetName(this->p_, &name));
0260   return std::string(name);
0261 }
0262 
0263 template <typename T>
0264 inline OrtAllocatorType MemoryInfoImpl<T>::GetAllocatorType() const {
0265   OrtAllocatorType type;
0266   ThrowOnError(GetApi().MemoryInfoGetType(this->p_, &type));
0267   return type;
0268 }
0269 
0270 template <typename T>
0271 inline int MemoryInfoImpl<T>::GetDeviceId() const {
0272   int id = 0;
0273   ThrowOnError(GetApi().MemoryInfoGetId(this->p_, &id));
0274   return id;
0275 }
0276 
0277 template <typename T>
0278 inline OrtMemoryInfoDeviceType MemoryInfoImpl<T>::GetDeviceType() const {
0279   OrtMemoryInfoDeviceType type;
0280   GetApi().MemoryInfoGetDeviceType(this->p_, &type);
0281   return type;
0282 }
0283 
0284 template <typename T>
0285 inline OrtMemType MemoryInfoImpl<T>::GetMemoryType() const {
0286   OrtMemType type;
0287   ThrowOnError(GetApi().MemoryInfoGetMemType(this->p_, &type));
0288   return type;
0289 }
0290 
0291 template <typename T>
0292 template <typename U>
0293 inline bool MemoryInfoImpl<T>::operator==(const MemoryInfoImpl<U>& o) const {
0294   int comp_result = 0;
0295   ThrowOnError(Ort::GetApi().CompareMemoryInfo(this->p_, o, &comp_result));
0296   return comp_result == 0;
0297 }
0298 
0299 }  // namespace detail
0300 
0301 inline MemoryInfo MemoryInfo::CreateCpu(OrtAllocatorType type, OrtMemType mem_type) {
0302   OrtMemoryInfo* p;
0303   ThrowOnError(GetApi().CreateCpuMemoryInfo(type, mem_type, &p));
0304   return MemoryInfo(p);
0305 }
0306 
0307 inline MemoryInfo::MemoryInfo(const char* name, OrtAllocatorType type, int id, OrtMemType mem_type) {
0308   ThrowOnError(GetApi().CreateMemoryInfo(name, type, id, mem_type, &this->p_));
0309 }
0310 
0311 namespace detail {
0312 template <typename T>
0313 inline std::vector<std::string> ConstIoBindingImpl<T>::GetOutputNames() const {
0314   AllocatorWithDefaultOptions allocator;
0315   return binding_utils::GetOutputNamesHelper(this->p_, allocator);
0316 }
0317 
0318 template <typename T>
0319 inline std::vector<std::string> ConstIoBindingImpl<T>::GetOutputNames(OrtAllocator* allocator) const {
0320   return binding_utils::GetOutputNamesHelper(this->p_, allocator);
0321 }
0322 
0323 template <typename T>
0324 inline std::vector<Value> ConstIoBindingImpl<T>::GetOutputValues() const {
0325   AllocatorWithDefaultOptions allocator;
0326   return binding_utils::GetOutputValuesHelper(this->p_, allocator);
0327 }
0328 
0329 template <typename T>
0330 inline std::vector<Value> ConstIoBindingImpl<T>::GetOutputValues(OrtAllocator* allocator) const {
0331   return binding_utils::GetOutputValuesHelper(this->p_, allocator);
0332 }
0333 
0334 template <typename T>
0335 inline void IoBindingImpl<T>::BindInput(const char* name, const Value& value) {
0336   ThrowOnError(GetApi().BindInput(this->p_, name, value));
0337 }
0338 
0339 template <typename T>
0340 inline void IoBindingImpl<T>::BindOutput(const char* name, const Value& value) {
0341   ThrowOnError(GetApi().BindOutput(this->p_, name, value));
0342 }
0343 
0344 template <typename T>
0345 inline void IoBindingImpl<T>::BindOutput(const char* name, const OrtMemoryInfo* mem_info) {
0346   ThrowOnError(GetApi().BindOutputToDevice(this->p_, name, mem_info));
0347 }
0348 
0349 template <typename T>
0350 inline void IoBindingImpl<T>::ClearBoundInputs() {
0351   GetApi().ClearBoundInputs(this->p_);
0352 }
0353 
0354 template <typename T>
0355 inline void IoBindingImpl<T>::ClearBoundOutputs() {
0356   GetApi().ClearBoundOutputs(this->p_);
0357 }
0358 
0359 template <typename T>
0360 inline void IoBindingImpl<T>::SynchronizeInputs() {
0361   ThrowOnError(GetApi().SynchronizeBoundInputs(this->p_));
0362 }
0363 
0364 template <typename T>
0365 inline void IoBindingImpl<T>::SynchronizeOutputs() {
0366   ThrowOnError(GetApi().SynchronizeBoundOutputs(this->p_));
0367 }
0368 
0369 namespace binding_utils {
0370 inline std::vector<std::string> GetOutputNamesHelper(const OrtIoBinding* binding, OrtAllocator* allocator) {
0371   std::vector<std::string> result;
0372   auto free_fn = detail::AllocatedFree(allocator);
0373   using Ptr = std::unique_ptr<void, decltype(free_fn)>;
0374 
0375   char* buffer = nullptr;
0376   size_t* lengths = nullptr;
0377   size_t count = 0;
0378   ThrowOnError(GetApi().GetBoundOutputNames(binding, allocator, &buffer, &lengths, &count));
0379 
0380   if (count == 0) {
0381     return result;
0382   }
0383 
0384   Ptr buffer_g(buffer, free_fn);
0385   Ptr lengths_g(lengths, free_fn);
0386 
0387   result.reserve(count);
0388   for (size_t i = 0; i < count; ++i) {
0389     auto sz = *lengths;
0390     result.emplace_back(buffer, sz);
0391     buffer += sz;
0392     ++lengths;
0393   }
0394   return result;
0395 }
0396 
0397 inline std::vector<Value> GetOutputValuesHelper(const OrtIoBinding* binding, OrtAllocator* allocator) {
0398   std::vector<Value> result;
0399   size_t owned = 0;
0400   size_t output_count = 0;
0401   // Lambda to release the buffer when no longer needed and
0402   // make sure that we destroy all instances on exception
0403   auto free_fn = [&owned, &output_count, allocator](OrtValue** buffer) {
0404     if (buffer) {
0405       while (owned < output_count) {
0406         auto* p = buffer + owned++;
0407         GetApi().ReleaseValue(*p);
0408       }
0409       allocator->Free(allocator, buffer);
0410     }
0411   };
0412   using Ptr = std::unique_ptr<OrtValue*, decltype(free_fn)>;
0413 
0414   OrtValue** output_buffer = nullptr;
0415   ThrowOnError(GetApi().GetBoundOutputValues(binding, allocator, &output_buffer, &output_count));
0416   if (output_count == 0) {
0417     return result;
0418   }
0419 
0420   Ptr buffer_g(output_buffer, free_fn);
0421 
0422   result.reserve(output_count);
0423   for (size_t i = 0; i < output_count; ++i) {
0424     result.emplace_back(output_buffer[i]);
0425     ++owned;
0426   }
0427   return result;
0428 }
0429 
0430 }  // namespace binding_utils
0431 }  // namespace detail
0432 
0433 inline IoBinding::IoBinding(Session& session) {
0434   ThrowOnError(GetApi().CreateIoBinding(session, &this->p_));
0435 }
0436 
0437 inline ArenaCfg::ArenaCfg(size_t max_mem, int arena_extend_strategy, int initial_chunk_size_bytes, int max_dead_bytes_per_chunk) {
0438   ThrowOnError(GetApi().CreateArenaCfg(max_mem, arena_extend_strategy, initial_chunk_size_bytes, max_dead_bytes_per_chunk, &p_));
0439 }
0440 
0441 inline ThreadingOptions::ThreadingOptions() {
0442   ThrowOnError(GetApi().CreateThreadingOptions(&p_));
0443 }
0444 
0445 inline ThreadingOptions& ThreadingOptions::SetGlobalIntraOpNumThreads(int intra_op_num_threads) {
0446   ThrowOnError(GetApi().SetGlobalIntraOpNumThreads(p_, intra_op_num_threads));
0447   return *this;
0448 }
0449 
0450 inline ThreadingOptions& ThreadingOptions::SetGlobalInterOpNumThreads(int inter_op_num_threads) {
0451   ThrowOnError(GetApi().SetGlobalInterOpNumThreads(p_, inter_op_num_threads));
0452   return *this;
0453 }
0454 
0455 inline ThreadingOptions& ThreadingOptions::SetGlobalSpinControl(int allow_spinning) {
0456   ThrowOnError(GetApi().SetGlobalSpinControl(p_, allow_spinning));
0457   return *this;
0458 }
0459 
0460 inline ThreadingOptions& ThreadingOptions::SetGlobalDenormalAsZero() {
0461   ThrowOnError(GetApi().SetGlobalDenormalAsZero(p_));
0462   return *this;
0463 }
0464 
0465 inline ThreadingOptions& ThreadingOptions::SetGlobalCustomCreateThreadFn(OrtCustomCreateThreadFn ort_custom_create_thread_fn) {
0466   ThrowOnError(GetApi().SetGlobalCustomCreateThreadFn(p_, ort_custom_create_thread_fn));
0467   return *this;
0468 }
0469 
0470 inline ThreadingOptions& ThreadingOptions::SetGlobalCustomThreadCreationOptions(void* ort_custom_thread_creation_options) {
0471   ThrowOnError(GetApi().SetGlobalCustomThreadCreationOptions(p_, ort_custom_thread_creation_options));
0472   return *this;
0473 }
0474 
0475 inline ThreadingOptions& ThreadingOptions::SetGlobalCustomJoinThreadFn(OrtCustomJoinThreadFn ort_custom_join_thread_fn) {
0476   ThrowOnError(GetApi().SetGlobalCustomJoinThreadFn(p_, ort_custom_join_thread_fn));
0477   return *this;
0478 }
0479 
0480 inline Env::Env(OrtLoggingLevel logging_level, _In_ const char* logid) {
0481   ThrowOnError(GetApi().CreateEnv(logging_level, logid, &p_));
0482   if (strcmp(logid, "onnxruntime-node") == 0) {
0483     ThrowOnError(GetApi().SetLanguageProjection(p_, OrtLanguageProjection::ORT_PROJECTION_NODEJS));
0484   } else {
0485     ThrowOnError(GetApi().SetLanguageProjection(p_, OrtLanguageProjection::ORT_PROJECTION_CPLUSPLUS));
0486   }
0487 }
0488 
0489 inline Env::Env(OrtLoggingLevel logging_level, const char* logid, OrtLoggingFunction logging_function, void* logger_param) {
0490   ThrowOnError(GetApi().CreateEnvWithCustomLogger(logging_function, logger_param, logging_level, logid, &p_));
0491   if (strcmp(logid, "onnxruntime-node") == 0) {
0492     ThrowOnError(GetApi().SetLanguageProjection(p_, OrtLanguageProjection::ORT_PROJECTION_NODEJS));
0493   } else {
0494     ThrowOnError(GetApi().SetLanguageProjection(p_, OrtLanguageProjection::ORT_PROJECTION_CPLUSPLUS));
0495   }
0496 }
0497 
0498 inline Env::Env(const OrtThreadingOptions* tp_options, OrtLoggingLevel logging_level, _In_ const char* logid) {
0499   ThrowOnError(GetApi().CreateEnvWithGlobalThreadPools(logging_level, logid, tp_options, &p_));
0500   if (strcmp(logid, "onnxruntime-node") == 0) {
0501     ThrowOnError(GetApi().SetLanguageProjection(p_, OrtLanguageProjection::ORT_PROJECTION_NODEJS));
0502   } else {
0503     ThrowOnError(GetApi().SetLanguageProjection(p_, OrtLanguageProjection::ORT_PROJECTION_CPLUSPLUS));
0504   }
0505 }
0506 
0507 inline Env::Env(const OrtThreadingOptions* tp_options, OrtLoggingFunction logging_function, void* logger_param,
0508                 OrtLoggingLevel logging_level, _In_ const char* logid) {
0509   ThrowOnError(GetApi().CreateEnvWithCustomLoggerAndGlobalThreadPools(logging_function, logger_param, logging_level, logid, tp_options, &p_));
0510   if (strcmp(logid, "onnxruntime-node") == 0) {
0511     ThrowOnError(GetApi().SetLanguageProjection(p_, OrtLanguageProjection::ORT_PROJECTION_NODEJS));
0512   } else {
0513     ThrowOnError(GetApi().SetLanguageProjection(p_, OrtLanguageProjection::ORT_PROJECTION_CPLUSPLUS));
0514   }
0515 }
0516 
0517 inline Env& Env::EnableTelemetryEvents() {
0518   ThrowOnError(GetApi().EnableTelemetryEvents(p_));
0519   return *this;
0520 }
0521 
0522 inline Env& Env::DisableTelemetryEvents() {
0523   ThrowOnError(GetApi().DisableTelemetryEvents(p_));
0524   return *this;
0525 }
0526 
0527 inline Env& Env::UpdateEnvWithCustomLogLevel(OrtLoggingLevel log_severity_level) {
0528   ThrowOnError(GetApi().UpdateEnvWithCustomLogLevel(p_, log_severity_level));
0529   return *this;
0530 }
0531 
0532 inline Env& Env::CreateAndRegisterAllocator(const OrtMemoryInfo* mem_info, const OrtArenaCfg* arena_cfg) {
0533   ThrowOnError(GetApi().CreateAndRegisterAllocator(p_, mem_info, arena_cfg));
0534   return *this;
0535 }
0536 
0537 inline Env& Env::CreateAndRegisterAllocatorV2(const std::string& provider_type, const OrtMemoryInfo* mem_info, const std::unordered_map<std::string, std::string>& options, const OrtArenaCfg* arena_cfg) {
0538   std::vector<const char*> keys, values;
0539   auto num_entries = options.size();
0540   if (num_entries > 0) {
0541     keys.reserve(num_entries);
0542     values.reserve(num_entries);
0543     for (const auto& entry : options) {
0544       keys.push_back(entry.first.c_str());
0545       values.push_back(entry.second.c_str());
0546     }
0547   }
0548   ThrowOnError(GetApi().CreateAndRegisterAllocatorV2(p_, provider_type.c_str(), mem_info, arena_cfg, keys.data(), values.data(), num_entries));
0549   return *this;
0550 }
0551 
0552 inline CustomOpDomain::CustomOpDomain(const char* domain) {
0553   ThrowOnError(GetApi().CreateCustomOpDomain(domain, &p_));
0554 }
0555 
0556 inline void CustomOpDomain::Add(const OrtCustomOp* op) {
0557   ThrowOnError(GetApi().CustomOpDomain_Add(p_, op));
0558 }
0559 
0560 inline LoraAdapter LoraAdapter::CreateLoraAdapter(const std::basic_string<ORTCHAR_T>& adapter_path,
0561                                                   OrtAllocator* allocator) {
0562   OrtLoraAdapter* p;
0563   ThrowOnError(GetApi().CreateLoraAdapter(adapter_path.c_str(), allocator, &p));
0564   return LoraAdapter{p};
0565 }
0566 
0567 inline LoraAdapter LoraAdapter::CreateLoraAdapterFromArray(const void* bytes, size_t num_bytes,
0568                                                            OrtAllocator* allocator) {
0569   OrtLoraAdapter* p;
0570   ThrowOnError(GetApi().CreateLoraAdapterFromArray(bytes, num_bytes, allocator, &p));
0571   return LoraAdapter{p};
0572 }
0573 
0574 inline RunOptions::RunOptions() {
0575   ThrowOnError(GetApi().CreateRunOptions(&p_));
0576 }
0577 
0578 inline RunOptions& RunOptions::SetRunLogVerbosityLevel(int level) {
0579   ThrowOnError(GetApi().RunOptionsSetRunLogVerbosityLevel(p_, level));
0580   return *this;
0581 }
0582 
0583 inline RunOptions& RunOptions::SetRunLogSeverityLevel(int level) {
0584   ThrowOnError(GetApi().RunOptionsSetRunLogSeverityLevel(p_, level));
0585   return *this;
0586 }
0587 
0588 inline int RunOptions::GetRunLogVerbosityLevel() const {
0589   int out;
0590   ThrowOnError(GetApi().RunOptionsGetRunLogVerbosityLevel(p_, &out));
0591   return out;
0592 }
0593 
0594 inline int RunOptions::GetRunLogSeverityLevel() const {
0595   int out;
0596   ThrowOnError(GetApi().RunOptionsGetRunLogSeverityLevel(p_, &out));
0597   return out;
0598 }
0599 
0600 inline RunOptions& RunOptions::SetRunTag(const char* run_tag) {
0601   ThrowOnError(GetApi().RunOptionsSetRunTag(p_, run_tag));
0602   return *this;
0603 }
0604 
0605 inline const char* RunOptions::GetRunTag() const {
0606   const char* out;
0607   ThrowOnError(GetApi().RunOptionsGetRunTag(p_, &out));
0608   return out;
0609 }
0610 
0611 inline RunOptions& RunOptions::AddConfigEntry(const char* config_key, const char* config_value) {
0612   ThrowOnError(GetApi().AddRunConfigEntry(p_, config_key, config_value));
0613   return *this;
0614 }
0615 
0616 inline RunOptions& RunOptions::SetTerminate() {
0617   ThrowOnError(GetApi().RunOptionsSetTerminate(p_));
0618   return *this;
0619 }
0620 
0621 inline RunOptions& RunOptions::UnsetTerminate() {
0622   ThrowOnError(GetApi().RunOptionsUnsetTerminate(p_));
0623   return *this;
0624 }
0625 
0626 inline RunOptions& RunOptions::AddActiveLoraAdapter(const LoraAdapter& adapter) {
0627   ThrowOnError(GetApi().RunOptionsAddActiveLoraAdapter(p_, adapter));
0628   return *this;
0629 }
0630 
0631 namespace detail {
0632 
0633 template <typename T>
0634 inline Ort::SessionOptions ConstSessionOptionsImpl<T>::Clone() const {
0635   OrtSessionOptions* out;
0636   ThrowOnError(GetApi().CloneSessionOptions(this->p_, &out));
0637   return SessionOptions{out};
0638 }
0639 
0640 template <typename T>
0641 inline std::string ConstSessionOptionsImpl<T>::GetConfigEntry(const char* config_key) const {
0642   size_t size = 0;
0643   // Feed nullptr for the data buffer to query the true size of the string value
0644   Ort::ThrowOnError(GetApi().GetSessionConfigEntry(this->p_, config_key, nullptr, &size));
0645 
0646   std::string out;
0647   out.resize(size);
0648   Ort::ThrowOnError(GetApi().GetSessionConfigEntry(this->p_, config_key, &out[0], &size));
0649   out.resize(size - 1);  // remove the terminating character '\0'
0650 
0651   return out;
0652 }
0653 
0654 template <typename T>
0655 inline bool ConstSessionOptionsImpl<T>::HasConfigEntry(const char* config_key) const {
0656   int out = 0;
0657   Ort::ThrowOnError(GetApi().HasSessionConfigEntry(this->p_, config_key, &out));
0658   return static_cast<bool>(out);
0659 }
0660 
0661 template <typename T>
0662 inline std::string ConstSessionOptionsImpl<T>::GetConfigEntryOrDefault(const char* config_key, const std::string& def) {
0663   if (!this->HasConfigEntry(config_key)) {
0664     return def;
0665   }
0666 
0667   return this->GetConfigEntry(config_key);
0668 }
0669 
0670 template <typename T>
0671 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::SetIntraOpNumThreads(int intra_op_num_threads) {
0672   ThrowOnError(GetApi().SetIntraOpNumThreads(this->p_, intra_op_num_threads));
0673   return *this;
0674 }
0675 
0676 template <typename T>
0677 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::SetInterOpNumThreads(int inter_op_num_threads) {
0678   ThrowOnError(GetApi().SetInterOpNumThreads(this->p_, inter_op_num_threads));
0679   return *this;
0680 }
0681 
0682 template <typename T>
0683 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::SetGraphOptimizationLevel(GraphOptimizationLevel graph_optimization_level) {
0684   ThrowOnError(GetApi().SetSessionGraphOptimizationLevel(this->p_, graph_optimization_level));
0685   return *this;
0686 }
0687 
0688 template <typename T>
0689 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::SetDeterministicCompute(bool value) {
0690   ThrowOnError(GetApi().SetDeterministicCompute(this->p_, value));
0691   return *this;
0692 }
0693 
0694 template <typename T>
0695 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::SetOptimizedModelFilePath(const ORTCHAR_T* optimized_model_filepath) {
0696   ThrowOnError(GetApi().SetOptimizedModelFilePath(this->p_, optimized_model_filepath));
0697   return *this;
0698 }
0699 
0700 template <typename T>
0701 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::EnableProfiling(const ORTCHAR_T* profile_file_prefix) {
0702   ThrowOnError(GetApi().EnableProfiling(this->p_, profile_file_prefix));
0703   return *this;
0704 }
0705 
0706 template <typename T>
0707 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::DisableProfiling() {
0708   ThrowOnError(GetApi().DisableProfiling(this->p_));
0709   return *this;
0710 }
0711 
0712 template <typename T>
0713 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::EnableOrtCustomOps() {
0714   ThrowOnError(GetApi().EnableOrtCustomOps(this->p_));
0715   return *this;
0716 }
0717 
0718 template <typename T>
0719 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::EnableMemPattern() {
0720   ThrowOnError(GetApi().EnableMemPattern(this->p_));
0721   return *this;
0722 }
0723 
0724 template <typename T>
0725 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::DisableMemPattern() {
0726   ThrowOnError(GetApi().DisableMemPattern(this->p_));
0727   return *this;
0728 }
0729 
0730 template <typename T>
0731 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::EnableCpuMemArena() {
0732   ThrowOnError(GetApi().EnableCpuMemArena(this->p_));
0733   return *this;
0734 }
0735 
0736 template <typename T>
0737 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::DisableCpuMemArena() {
0738   ThrowOnError(GetApi().DisableCpuMemArena(this->p_));
0739   return *this;
0740 }
0741 
0742 template <typename T>
0743 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::SetExecutionMode(ExecutionMode execution_mode) {
0744   ThrowOnError(GetApi().SetSessionExecutionMode(this->p_, execution_mode));
0745   return *this;
0746 }
0747 
0748 template <typename T>
0749 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::SetLogId(const char* logid) {
0750   ThrowOnError(GetApi().SetSessionLogId(this->p_, logid));
0751   return *this;
0752 }
0753 
0754 template <typename T>
0755 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::SetLogSeverityLevel(int level) {
0756   ThrowOnError(GetApi().SetSessionLogSeverityLevel(this->p_, level));
0757   return *this;
0758 }
0759 
0760 template <typename T>
0761 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::Add(OrtCustomOpDomain* custom_op_domain) {
0762   ThrowOnError(GetApi().AddCustomOpDomain(this->p_, custom_op_domain));
0763   return *this;
0764 }
0765 
0766 template <typename T>
0767 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::AddConfigEntry(const char* config_key, const char* config_value) {
0768   ThrowOnError(GetApi().AddSessionConfigEntry(this->p_, config_key, config_value));
0769   return *this;
0770 }
0771 
0772 template <typename T>
0773 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::AddInitializer(const char* name, const OrtValue* ort_val) {
0774   ThrowOnError(GetApi().AddInitializer(this->p_, name, ort_val));
0775   return *this;
0776 }
0777 
0778 template <typename T>
0779 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::DisablePerSessionThreads() {
0780   ThrowOnError(GetApi().DisablePerSessionThreads(this->p_));
0781   return *this;
0782 }
0783 
0784 template <typename T>
0785 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::AddExternalInitializers(const std::vector<std::string>& names,
0786                                                                              const std::vector<Value>& ort_values) {
0787   const size_t inputs_num = names.size();
0788   if (inputs_num != ort_values.size()) {
0789     ORT_CXX_API_THROW("Expecting names and ort_values to have the same length", ORT_INVALID_ARGUMENT);
0790   }
0791   std::vector<const char*> names_ptr;
0792   std::vector<const OrtValue*> ort_values_ptrs;
0793   names_ptr.reserve(inputs_num);
0794   ort_values_ptrs.reserve(inputs_num);
0795   for (size_t i = 0; i < inputs_num; ++i) {
0796     names_ptr.push_back(names[i].c_str());
0797     ort_values_ptrs.push_back(ort_values[i]);
0798   }
0799   ThrowOnError(GetApi().AddExternalInitializers(this->p_, names_ptr.data(), ort_values_ptrs.data(), inputs_num));
0800   return *this;
0801 }
0802 
0803 template <typename T>
0804 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::AddExternalInitializersFromFilesInMemory(const std::vector<std::basic_string<ORTCHAR_T>>& file_names,
0805                                                                                               const std::vector<char*>& buffer_array,
0806                                                                                               const std::vector<size_t>& file_lengths) {
0807   const size_t inputs_num = file_names.size();
0808   if (inputs_num != buffer_array.size()) {
0809     ORT_CXX_API_THROW("Expecting names and buffer_array to have the same length", ORT_INVALID_ARGUMENT);
0810   }
0811   if (inputs_num != file_lengths.size()) {
0812     ORT_CXX_API_THROW("Expecting names and file_lengths to have the same length", ORT_INVALID_ARGUMENT);
0813   }
0814   std::vector<const ORTCHAR_T*> names_ptr;
0815   names_ptr.reserve(inputs_num);
0816   for (size_t i = 0; i < inputs_num; ++i) {
0817     names_ptr.push_back(file_names[i].c_str());
0818   }
0819   ThrowOnError(GetApi().AddExternalInitializersFromFilesInMemory(this->p_, names_ptr.data(), buffer_array.data(),
0820                                                                  file_lengths.data(), inputs_num));
0821   return *this;
0822 }
0823 
0824 template <typename T>
0825 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::AppendExecutionProvider_CUDA(const OrtCUDAProviderOptions& provider_options) {
0826   ThrowOnError(GetApi().SessionOptionsAppendExecutionProvider_CUDA(this->p_, &provider_options));
0827   return *this;
0828 }
0829 
0830 template <typename T>
0831 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::AppendExecutionProvider_CUDA_V2(const OrtCUDAProviderOptionsV2& provider_options) {
0832   ThrowOnError(GetApi().SessionOptionsAppendExecutionProvider_CUDA_V2(this->p_, &provider_options));
0833   return *this;
0834 }
0835 
0836 template <typename T>
0837 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::AppendExecutionProvider_ROCM(const OrtROCMProviderOptions& provider_options) {
0838   ThrowOnError(GetApi().SessionOptionsAppendExecutionProvider_ROCM(this->p_, &provider_options));
0839   return *this;
0840 }
0841 
0842 template <typename T>
0843 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::AppendExecutionProvider_TensorRT(const OrtTensorRTProviderOptions& provider_options) {
0844   ThrowOnError(GetApi().SessionOptionsAppendExecutionProvider_TensorRT(this->p_, &provider_options));
0845   return *this;
0846 }
0847 
0848 template <typename T>
0849 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::AppendExecutionProvider_TensorRT_V2(const OrtTensorRTProviderOptionsV2& provider_options) {
0850   ThrowOnError(GetApi().SessionOptionsAppendExecutionProvider_TensorRT_V2(this->p_, &provider_options));
0851   return *this;
0852 }
0853 
0854 template <typename T>
0855 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::AppendExecutionProvider_MIGraphX(const OrtMIGraphXProviderOptions& provider_options) {
0856   ThrowOnError(GetApi().SessionOptionsAppendExecutionProvider_MIGraphX(this->p_, &provider_options));
0857   return *this;
0858 }
0859 
0860 template <typename T>
0861 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::AppendExecutionProvider_CANN(const OrtCANNProviderOptions& provider_options) {
0862   ThrowOnError(GetApi().SessionOptionsAppendExecutionProvider_CANN(this->p_, &provider_options));
0863   return *this;
0864 }
0865 
0866 template <typename T>
0867 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::AppendExecutionProvider_Dnnl(const OrtDnnlProviderOptions& provider_options) {
0868   ThrowOnError(GetApi().SessionOptionsAppendExecutionProvider_Dnnl(this->p_, &provider_options));
0869   return *this;
0870 }
0871 
0872 template <typename T>
0873 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::AppendExecutionProvider(
0874     const std::string& provider_name,
0875     const std::unordered_map<std::string, std::string>& provider_options) {
0876   auto num_entries = provider_options.size();
0877   std::vector<const char*> keys, values;
0878   if (num_entries > 0) {
0879     keys.reserve(num_entries);
0880     values.reserve(num_entries);
0881 
0882     for (const auto& entry : provider_options) {
0883       keys.push_back(entry.first.c_str());
0884       values.push_back(entry.second.c_str());
0885     }
0886   }
0887 
0888   ThrowOnError(GetApi().SessionOptionsAppendExecutionProvider(this->p_, provider_name.c_str(),
0889                                                               keys.data(), values.data(), num_entries));
0890 
0891   return *this;
0892 }
0893 
0894 template <typename T>
0895 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::SetCustomCreateThreadFn(OrtCustomCreateThreadFn ort_custom_create_thread_fn) {
0896   ThrowOnError(GetApi().SessionOptionsSetCustomCreateThreadFn(this->p_, ort_custom_create_thread_fn));
0897   return *this;
0898 }
0899 
0900 template <typename T>
0901 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::SetCustomThreadCreationOptions(void* ort_custom_thread_creation_options) {
0902   ThrowOnError(GetApi().SessionOptionsSetCustomThreadCreationOptions(this->p_, ort_custom_thread_creation_options));
0903   return *this;
0904 }
0905 
0906 template <typename T>
0907 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::SetCustomJoinThreadFn(OrtCustomJoinThreadFn ort_custom_join_thread_fn) {
0908   ThrowOnError(GetApi().SessionOptionsSetCustomJoinThreadFn(this->p_, ort_custom_join_thread_fn));
0909   return *this;
0910 }
0911 
0912 template <typename T>
0913 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::AppendExecutionProvider_OpenVINO(const OrtOpenVINOProviderOptions& provider_options) {
0914   ThrowOnError(GetApi().SessionOptionsAppendExecutionProvider_OpenVINO(this->p_, &provider_options));
0915   return *this;
0916 }
0917 
0918 template <typename T>
0919 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::AppendExecutionProvider_OpenVINO_V2(const std::unordered_map<std::string, std::string>& provider_options) {
0920   auto num_entries = provider_options.size();
0921   std::vector<const char*> keys, values;
0922   if (num_entries > 0) {
0923     keys.reserve(num_entries);
0924     values.reserve(num_entries);
0925 
0926     for (const auto& entry : provider_options) {
0927       keys.push_back(entry.first.c_str());
0928       values.push_back(entry.second.c_str());
0929     }
0930   }
0931 
0932   ThrowOnError(GetApi().SessionOptionsAppendExecutionProvider_OpenVINO_V2(this->p_,
0933                                                                           keys.data(), values.data(), num_entries));
0934 
0935   return *this;
0936 }
0937 
0938 template <typename T>
0939 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::AppendExecutionProvider_VitisAI(const std::unordered_map<std::string, std::string>& provider_options) {
0940   auto num_entries = provider_options.size();
0941   std::vector<const char*> keys, values;
0942   if (num_entries > 0) {
0943     keys.reserve(num_entries);
0944     values.reserve(num_entries);
0945 
0946     for (const auto& entry : provider_options) {
0947       keys.push_back(entry.first.c_str());
0948       values.push_back(entry.second.c_str());
0949     }
0950   }
0951 
0952   ThrowOnError(GetApi().SessionOptionsAppendExecutionProvider_VitisAI(this->p_, keys.data(), values.data(), num_entries));
0953 
0954   return *this;
0955 }
0956 
0957 template <typename T>
0958 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::RegisterCustomOpsLibrary(const ORTCHAR_T* library_name,
0959                                                                               const CustomOpConfigs& custom_op_configs) {
0960   // Add custom op config entries before registering the custom op library. Otherwise, the config entries _may_ be ignored by
0961   // the custom op library.
0962   for (const auto& config_iter : custom_op_configs.GetFlattenedConfigs()) {
0963     AddConfigEntry(config_iter.first.c_str(), config_iter.second.c_str());
0964   }
0965 
0966   ThrowOnError(GetApi().RegisterCustomOpsLibrary_V2(this->p_, library_name));
0967   return *this;
0968 }
0969 
0970 template <typename T>
0971 inline SessionOptionsImpl<T>& SessionOptionsImpl<T>::RegisterCustomOpsUsingFunction(const char* registration_function_name) {
0972   ThrowOnError(GetApi().RegisterCustomOpsUsingFunction(this->p_, registration_function_name));
0973   return *this;
0974 }
0975 
0976 /// Session
0977 template <typename T>
0978 inline size_t ConstSessionImpl<T>::GetInputCount() const {
0979   size_t out;
0980   ThrowOnError(GetApi().SessionGetInputCount(this->p_, &out));
0981   return out;
0982 }
0983 
0984 template <typename T>
0985 inline size_t ConstSessionImpl<T>::GetOutputCount() const {
0986   size_t out;
0987   ThrowOnError(GetApi().SessionGetOutputCount(this->p_, &out));
0988   return out;
0989 }
0990 
0991 template <typename T>
0992 inline size_t ConstSessionImpl<T>::GetOverridableInitializerCount() const {
0993   size_t out;
0994   ThrowOnError(GetApi().SessionGetOverridableInitializerCount(this->p_, &out));
0995   return out;
0996 }
0997 
0998 template <typename T>
0999 inline AllocatedStringPtr ConstSessionImpl<T>::GetInputNameAllocated(size_t index, OrtAllocator* allocator) const {
1000   char* out;
1001   ThrowOnError(GetApi().SessionGetInputName(this->p_, index, allocator, &out));
1002   return AllocatedStringPtr(out, detail::AllocatedFree(allocator));
1003 }
1004 
1005 template <typename T>
1006 inline AllocatedStringPtr ConstSessionImpl<T>::GetOutputNameAllocated(size_t index, OrtAllocator* allocator) const {
1007   char* out;
1008   ThrowOnError(GetApi().SessionGetOutputName(this->p_, index, allocator, &out));
1009   return AllocatedStringPtr(out, detail::AllocatedFree(allocator));
1010 }
1011 
1012 template <typename T>
1013 inline AllocatedStringPtr ConstSessionImpl<T>::GetOverridableInitializerNameAllocated(size_t index, OrtAllocator* allocator) const {
1014   char* out;
1015   ThrowOnError(GetApi().SessionGetOverridableInitializerName(this->p_, index, allocator, &out));
1016   return AllocatedStringPtr(out, detail::AllocatedFree(allocator));
1017 }
1018 
1019 template <typename T>
1020 inline uint64_t ConstSessionImpl<T>::GetProfilingStartTimeNs() const {
1021   uint64_t out;
1022   ThrowOnError(GetApi().SessionGetProfilingStartTimeNs(this->p_, &out));
1023   return out;
1024 }
1025 
1026 template <typename T>
1027 inline ModelMetadata ConstSessionImpl<T>::GetModelMetadata() const {
1028   OrtModelMetadata* out;
1029   ThrowOnError(GetApi().SessionGetModelMetadata(this->p_, &out));
1030   return ModelMetadata{out};
1031 }
1032 
1033 template <typename T>
1034 inline TypeInfo ConstSessionImpl<T>::GetInputTypeInfo(size_t index) const {
1035   OrtTypeInfo* out;
1036   ThrowOnError(GetApi().SessionGetInputTypeInfo(this->p_, index, &out));
1037   return TypeInfo{out};
1038 }
1039 
1040 template <typename T>
1041 inline TypeInfo ConstSessionImpl<T>::GetOutputTypeInfo(size_t index) const {
1042   OrtTypeInfo* out;
1043   ThrowOnError(GetApi().SessionGetOutputTypeInfo(this->p_, index, &out));
1044   return TypeInfo{out};
1045 }
1046 
1047 template <typename T>
1048 inline TypeInfo ConstSessionImpl<T>::GetOverridableInitializerTypeInfo(size_t index) const {
1049   OrtTypeInfo* out;
1050   ThrowOnError(GetApi().SessionGetOverridableInitializerTypeInfo(this->p_, index, &out));
1051   return TypeInfo{out};
1052 }
1053 
1054 template <typename T>
1055 inline std::vector<Value> SessionImpl<T>::Run(const RunOptions& run_options, const char* const* input_names, const Value* input_values, size_t input_count,
1056                                               const char* const* output_names, size_t output_count) {
1057   std::vector<Value> output_values;
1058   output_values.reserve(output_count);
1059   for (size_t i = 0; i < output_count; i++)
1060     output_values.emplace_back(nullptr);
1061   Run(run_options, input_names, input_values, input_count, output_names, output_values.data(), output_count);
1062   return output_values;
1063 }
1064 
1065 template <typename T>
1066 inline void SessionImpl<T>::Run(const RunOptions& run_options, const char* const* input_names, const Value* input_values, size_t input_count,
1067                                 const char* const* output_names, Value* output_values, size_t output_count) {
1068   static_assert(sizeof(Value) == sizeof(OrtValue*), "Value is really just an array of OrtValue* in memory, so we can reinterpret_cast safely");
1069   auto ort_input_values = reinterpret_cast<const OrtValue* const*>(input_values);
1070   auto ort_output_values = reinterpret_cast<OrtValue**>(output_values);
1071   ThrowOnError(GetApi().Run(this->p_, run_options, input_names, ort_input_values, input_count, output_names, output_count, ort_output_values));
1072 }
1073 
1074 template <typename T>
1075 inline void SessionImpl<T>::Run(const RunOptions& run_options, const IoBinding& io_binding) {
1076   ThrowOnError(GetApi().RunWithBinding(this->p_, run_options, io_binding));
1077 }
1078 
1079 template <typename T>
1080 inline void SessionImpl<T>::RunAsync(const RunOptions& run_options, const char* const* input_names, const Value* input_values, size_t input_count,
1081                                      const char* const* output_names, Value* output_values, size_t output_count, RunAsyncCallbackFn callback, void* user_data) {
1082   auto ort_input_values = reinterpret_cast<const OrtValue* const*>(input_values);
1083   auto ort_output_values = reinterpret_cast<OrtValue**>(output_values);
1084   ThrowOnError(GetApi().RunAsync(this->p_, run_options, input_names,
1085                                  ort_input_values, input_count, output_names, output_count,
1086                                  ort_output_values, callback, user_data));
1087 }
1088 
1089 template <typename T>
1090 inline AllocatedStringPtr SessionImpl<T>::EndProfilingAllocated(OrtAllocator* allocator) {
1091   char* out = nullptr;
1092   ThrowOnError(GetApi().SessionEndProfiling(this->p_, allocator, &out));
1093   return AllocatedStringPtr(out, detail::AllocatedFree(allocator));
1094 }
1095 
1096 template <typename T>
1097 inline void SessionImpl<T>::SetEpDynamicOptions(const char* const* keys, const char* const* values, size_t kv_len) {
1098   ThrowOnError(GetApi().SetEpDynamicOptions(this->p_, keys, values, kv_len));
1099 }
1100 
1101 }  // namespace detail
1102 
1103 inline SessionOptions::SessionOptions() {
1104   ThrowOnError(GetApi().CreateSessionOptions(&this->p_));
1105 }
1106 
1107 /// CustomOpConfigs
1108 inline std::string detail::MakeCustomOpConfigEntryKey(const char* custom_op_name, const char* config) {
1109   std::string config_key = "custom_op.";
1110 
1111   config_key += custom_op_name;
1112   config_key += ".";
1113   config_key += config;
1114 
1115   return config_key;
1116 }
1117 
1118 inline CustomOpConfigs& CustomOpConfigs::AddConfig(const char* custom_op_name, const char* config_key, const char* config_value) {
1119   const std::string full_flat_key = detail::MakeCustomOpConfigEntryKey(custom_op_name, config_key);
1120   flat_configs_[full_flat_key] = config_value;
1121   return *this;
1122 }
1123 
1124 inline const std::unordered_map<std::string, std::string>& CustomOpConfigs::GetFlattenedConfigs() const {
1125   return flat_configs_;
1126 }
1127 
1128 inline Session::Session(const Env& env, const ORTCHAR_T* model_path, const SessionOptions& options) {
1129   ThrowOnError(GetApi().CreateSession(env, model_path, options, &this->p_));
1130 }
1131 
1132 inline Session::Session(const Env& env, const ORTCHAR_T* model_path, const SessionOptions& options,
1133                         OrtPrepackedWeightsContainer* prepacked_weights_container) {
1134   ThrowOnError(GetApi().CreateSessionWithPrepackedWeightsContainer(env, model_path, options, prepacked_weights_container, &this->p_));
1135 }
1136 
1137 inline Session::Session(const Env& env, const void* model_data, size_t model_data_length, const SessionOptions& options) {
1138   ThrowOnError(GetApi().CreateSessionFromArray(env, model_data, model_data_length, options, &this->p_));
1139 }
1140 
1141 inline Session::Session(const Env& env, const void* model_data, size_t model_data_length,
1142                         const SessionOptions& options, OrtPrepackedWeightsContainer* prepacked_weights_container) {
1143   ThrowOnError(GetApi().CreateSessionFromArrayWithPrepackedWeightsContainer(env, model_data, model_data_length, options,
1144                                                                             prepacked_weights_container, &this->p_));
1145 }
1146 
1147 inline AllocatedStringPtr ModelMetadata::GetProducerNameAllocated(OrtAllocator* allocator) const {
1148   char* out;
1149   ThrowOnError(GetApi().ModelMetadataGetProducerName(p_, allocator, &out));
1150   return AllocatedStringPtr(out, detail::AllocatedFree(allocator));
1151 }
1152 
1153 inline AllocatedStringPtr ModelMetadata::GetGraphNameAllocated(OrtAllocator* allocator) const {
1154   char* out;
1155   ThrowOnError(GetApi().ModelMetadataGetGraphName(p_, allocator, &out));
1156   return AllocatedStringPtr(out, detail::AllocatedFree(allocator));
1157 }
1158 
1159 inline AllocatedStringPtr ModelMetadata::GetDomainAllocated(OrtAllocator* allocator) const {
1160   char* out;
1161   ThrowOnError(GetApi().ModelMetadataGetDomain(p_, allocator, &out));
1162   return AllocatedStringPtr(out, detail::AllocatedFree(allocator));
1163 }
1164 
1165 inline AllocatedStringPtr Ort::ModelMetadata::GetDescriptionAllocated(OrtAllocator* allocator) const {
1166   char* out;
1167   ThrowOnError(GetApi().ModelMetadataGetDescription(p_, allocator, &out));
1168   return AllocatedStringPtr(out, detail::AllocatedFree(allocator));
1169 }
1170 
1171 inline AllocatedStringPtr ModelMetadata::GetGraphDescriptionAllocated(OrtAllocator* allocator) const {
1172   char* out;
1173   ThrowOnError(GetApi().ModelMetadataGetGraphDescription(p_, allocator, &out));
1174   return AllocatedStringPtr(out, detail::AllocatedFree(allocator));
1175 }
1176 
1177 inline AllocatedStringPtr ModelMetadata::LookupCustomMetadataMapAllocated(const char* key, OrtAllocator* allocator) const {
1178   char* out;
1179   ThrowOnError(GetApi().ModelMetadataLookupCustomMetadataMap(p_, allocator, key, &out));
1180   return AllocatedStringPtr(out, detail::AllocatedFree(allocator));
1181 }
1182 
1183 inline std::vector<AllocatedStringPtr> ModelMetadata::GetCustomMetadataMapKeysAllocated(OrtAllocator* allocator) const {
1184   auto deletor = detail::AllocatedFree(allocator);
1185   std::vector<AllocatedStringPtr> result;
1186 
1187   char** out = nullptr;
1188   int64_t num_keys = 0;
1189   ThrowOnError(GetApi().ModelMetadataGetCustomMetadataMapKeys(p_, allocator, &out, &num_keys));
1190   if (num_keys <= 0) {
1191     return result;
1192   }
1193 
1194   // array of pointers will be freed
1195   std::unique_ptr<void, decltype(deletor)> array_guard(out, deletor);
1196   // reserve may throw
1197   auto strings_deletor = [&deletor, num_keys](char** out) { for(int64_t i = 0; i < num_keys; ++i) deletor(out[i]); };
1198   std::unique_ptr<char*, decltype(strings_deletor)> strings_guard(out, strings_deletor);
1199   result.reserve(static_cast<size_t>(num_keys));
1200   strings_guard.release();
1201   for (int64_t i = 0; i < num_keys; ++i) {
1202     result.push_back(AllocatedStringPtr(out[i], deletor));
1203   }
1204 
1205   return result;
1206 }
1207 
1208 inline int64_t ModelMetadata::GetVersion() const {
1209   int64_t out;
1210   ThrowOnError(GetApi().ModelMetadataGetVersion(p_, &out));
1211   return out;
1212 }
1213 
1214 namespace detail {
1215 
1216 template <typename T>
1217 inline ONNXTensorElementDataType TensorTypeAndShapeInfoImpl<T>::GetElementType() const {
1218   ONNXTensorElementDataType out;
1219   ThrowOnError(GetApi().GetTensorElementType(this->p_, &out));
1220   return out;
1221 }
1222 
1223 template <typename T>
1224 inline size_t TensorTypeAndShapeInfoImpl<T>::GetElementCount() const {
1225   size_t out;
1226   ThrowOnError(GetApi().GetTensorShapeElementCount(this->p_, &out));
1227   return static_cast<size_t>(out);
1228 }
1229 
1230 template <typename T>
1231 inline size_t TensorTypeAndShapeInfoImpl<T>::GetDimensionsCount() const {
1232   size_t out;
1233   ThrowOnError(GetApi().GetDimensionsCount(this->p_, &out));
1234   return out;
1235 }
1236 
1237 template <typename T>
1238 inline void TensorTypeAndShapeInfoImpl<T>::GetDimensions(int64_t* values, size_t values_count) const {
1239   ThrowOnError(GetApi().GetDimensions(this->p_, values, values_count));
1240 }
1241 
1242 template <typename T>
1243 inline void TensorTypeAndShapeInfoImpl<T>::GetSymbolicDimensions(const char** values, size_t values_count) const {
1244   ThrowOnError(GetApi().GetSymbolicDimensions(this->p_, values, values_count));
1245 }
1246 
1247 template <typename T>
1248 inline std::vector<int64_t> TensorTypeAndShapeInfoImpl<T>::GetShape() const {
1249   std::vector<int64_t> out(GetDimensionsCount(), 0);
1250   ThrowOnError(GetApi().GetDimensions(this->p_, out.data(), out.size()));
1251   return out;
1252 }
1253 
1254 template <typename T>
1255 inline ConstTensorTypeAndShapeInfo TypeInfoImpl<T>::GetTensorTypeAndShapeInfo() const {
1256   const OrtTensorTypeAndShapeInfo* out;
1257   ThrowOnError(GetApi().CastTypeInfoToTensorInfo(this->p_, &out));
1258   return ConstTensorTypeAndShapeInfo{out};
1259 }
1260 
1261 template <typename T>
1262 inline ConstSequenceTypeInfo TypeInfoImpl<T>::GetSequenceTypeInfo() const {
1263   const OrtSequenceTypeInfo* out;
1264   ThrowOnError(GetApi().CastTypeInfoToSequenceTypeInfo(this->p_, &out));
1265   return ConstSequenceTypeInfo{out};
1266 }
1267 
1268 template <typename T>
1269 inline ConstMapTypeInfo TypeInfoImpl<T>::GetMapTypeInfo() const {
1270   const OrtMapTypeInfo* out;
1271   ThrowOnError(GetApi().CastTypeInfoToMapTypeInfo(this->p_, &out));
1272   return ConstMapTypeInfo{out};
1273 }
1274 
1275 template <typename T>
1276 inline ONNXType TypeInfoImpl<T>::GetONNXType() const {
1277   ONNXType out;
1278   ThrowOnError(GetApi().GetOnnxTypeFromTypeInfo(this->p_, &out));
1279   return out;
1280 }
1281 
1282 template <typename T>
1283 inline TypeInfo SequenceTypeInfoImpl<T>::GetSequenceElementType() const {
1284   OrtTypeInfo* output;
1285   ThrowOnError(GetApi().GetSequenceElementType(this->p_, &output));
1286   return TypeInfo{output};
1287 }
1288 
1289 template <typename T>
1290 inline TypeInfo OptionalTypeInfoImpl<T>::GetOptionalElementType() const {
1291   OrtTypeInfo* info;
1292   ThrowOnError(GetApi().GetOptionalContainedTypeInfo(this->p_, &info));
1293   return TypeInfo{info};
1294 }
1295 
1296 template <typename T>
1297 inline ONNXTensorElementDataType MapTypeInfoImpl<T>::GetMapKeyType() const {
1298   ONNXTensorElementDataType out;
1299   ThrowOnError(GetApi().GetMapKeyType(this->p_, &out));
1300   return out;
1301 }
1302 
1303 template <typename T>
1304 inline TypeInfo MapTypeInfoImpl<T>::GetMapValueType() const {
1305   OrtTypeInfo* output;
1306   ThrowOnError(GetApi().GetMapValueType(this->p_, &output));
1307   return TypeInfo{output};
1308 }
1309 
1310 template <typename T>
1311 inline ConstOptionalTypeInfo TypeInfoImpl<T>::GetOptionalTypeInfo() const {
1312   const OrtOptionalTypeInfo* info;
1313   ThrowOnError(GetApi().CastTypeInfoToOptionalTypeInfo(this->p_, &info));
1314   return ConstOptionalTypeInfo{info};
1315 }
1316 
1317 }  // namespace detail
1318 
1319 namespace detail {
1320 
1321 template <typename T>
1322 template <typename R>
1323 inline void ConstValueImpl<T>::GetOpaqueData(const char* domain, const char* type_name, R& out) const {
1324   ThrowOnError(GetApi().GetOpaqueValue(domain, type_name, this->p_, &out, sizeof(R)));
1325 }
1326 
1327 template <typename T>
1328 inline bool ConstValueImpl<T>::IsTensor() const {
1329   int out;
1330   ThrowOnError(GetApi().IsTensor(this->p_, &out));
1331   return out != 0;
1332 }
1333 
1334 template <typename T>
1335 inline bool ConstValueImpl<T>::HasValue() const {
1336   int out;
1337   ThrowOnError(GetApi().HasValue(this->p_, &out));
1338   return out != 0;
1339 }
1340 
1341 template <typename T>
1342 inline size_t ConstValueImpl<T>::GetCount() const {
1343   size_t out;
1344   ThrowOnError(GetApi().GetValueCount(this->p_, &out));
1345   return out;
1346 }
1347 
1348 template <typename T>
1349 inline Value ConstValueImpl<T>::GetValue(int index, OrtAllocator* allocator) const {
1350   OrtValue* out;
1351   ThrowOnError(GetApi().GetValue(this->p_, index, allocator, &out));
1352   return Value{out};
1353 }
1354 
1355 template <typename T>
1356 inline size_t ConstValueImpl<T>::GetStringTensorDataLength() const {
1357   size_t out;
1358   ThrowOnError(GetApi().GetStringTensorDataLength(this->p_, &out));
1359   return out;
1360 }
1361 
1362 template <typename T>
1363 inline size_t ConstValueImpl<T>::GetStringTensorElementLength(size_t element_index) const {
1364   size_t out;
1365   ThrowOnError(GetApi().GetStringTensorElementLength(this->p_, element_index, &out));
1366   return out;
1367 }
1368 
1369 template <typename T>
1370 template <typename R>
1371 inline const R* ConstValueImpl<T>::GetTensorData() const {
1372   R* out;
1373   ThrowOnError(GetApi().GetTensorMutableData(const_cast<OrtValue*>(this->p_), (void**)&out));
1374   return out;
1375 }
1376 
1377 template <typename T>
1378 inline const void* ConstValueImpl<T>::GetTensorRawData() const {
1379   void* out;
1380   ThrowOnError(GetApi().GetTensorMutableData(const_cast<OrtValue*>(this->p_), &out));
1381   return out;
1382 }
1383 
1384 template <typename T>
1385 inline TypeInfo ConstValueImpl<T>::GetTypeInfo() const {
1386   OrtTypeInfo* output;
1387   ThrowOnError(GetApi().GetTypeInfo(this->p_, &output));
1388   return TypeInfo{output};
1389 }
1390 
1391 template <typename T>
1392 inline TensorTypeAndShapeInfo ConstValueImpl<T>::GetTensorTypeAndShapeInfo() const {
1393   OrtTensorTypeAndShapeInfo* output;
1394   ThrowOnError(GetApi().GetTensorTypeAndShape(this->p_, &output));
1395   return TensorTypeAndShapeInfo{output};
1396 }
1397 
1398 template <typename T>
1399 inline ConstMemoryInfo ConstValueImpl<T>::GetTensorMemoryInfo() const {
1400   const OrtMemoryInfo* mem_info;
1401   ThrowOnError(GetApi().GetTensorMemoryInfo(this->p_, &mem_info));
1402   return ConstMemoryInfo(mem_info);
1403 }
1404 
1405 template <typename T>
1406 inline void ConstValueImpl<T>::GetStringTensorElement(size_t buffer_length, size_t element_index, void* buffer) const {
1407   ThrowOnError(GetApi().GetStringTensorElement(this->p_, buffer_length, element_index, buffer));
1408 }
1409 
1410 template <typename T>
1411 inline std::string ConstValueImpl<T>::GetStringTensorElement(size_t element_index) const {
1412   size_t buffer_length;
1413   ThrowOnError(GetApi().GetStringTensorElementLength(this->p_, element_index, &buffer_length));
1414 
1415   std::string s;
1416   s.resize(buffer_length);
1417   ThrowOnError(GetApi().GetStringTensorElement(this->p_, buffer_length, element_index, &s[0]));
1418   return s;
1419 }
1420 
1421 template <typename T>
1422 inline void ConstValueImpl<T>::GetStringTensorContent(void* buffer, size_t buffer_length, size_t* offsets, size_t offsets_count) const {
1423   ThrowOnError(GetApi().GetStringTensorContent(this->p_, buffer, buffer_length, offsets, offsets_count));
1424 }
1425 
1426 #if !defined(DISABLE_SPARSE_TENSORS)
1427 template <typename T>
1428 inline OrtSparseFormat ConstValueImpl<T>::GetSparseFormat() const {
1429   OrtSparseFormat format;
1430   ThrowOnError(GetApi().GetSparseTensorFormat(this->p_, &format));
1431   return format;
1432 }
1433 
1434 template <typename T>
1435 inline TensorTypeAndShapeInfo ConstValueImpl<T>::GetSparseTensorValuesTypeAndShapeInfo() const {
1436   OrtTensorTypeAndShapeInfo* output;
1437   ThrowOnError(GetApi().GetSparseTensorValuesTypeAndShape(this->p_, &output));
1438   return TensorTypeAndShapeInfo{output};
1439 }
1440 
1441 template <typename T>
1442 inline TensorTypeAndShapeInfo ConstValueImpl<T>::GetSparseTensorIndicesTypeShapeInfo(OrtSparseIndicesFormat indices_format) const {
1443   OrtTensorTypeAndShapeInfo* output;
1444   ThrowOnError(GetApi().GetSparseTensorIndicesTypeShape(this->p_, indices_format, &output));
1445   return TensorTypeAndShapeInfo{output};
1446 }
1447 
1448 template <typename T>
1449 template <typename R>
1450 inline const R* ConstValueImpl<T>::GetSparseTensorIndicesData(OrtSparseIndicesFormat indices_format, size_t& num_indices) const {
1451   const void* out;
1452   ThrowOnError(GetApi().GetSparseTensorIndices(this->p_, indices_format, &num_indices, &out));
1453   return reinterpret_cast<const R*>(out);
1454 }
1455 
1456 template <typename T>
1457 inline bool ConstValueImpl<T>::IsSparseTensor() const {
1458   int out;
1459   ThrowOnError(GetApi().IsSparseTensor(this->p_, &out));
1460   return out != 0;
1461 }
1462 
1463 template <typename T>
1464 template <typename R>
1465 inline const R* ConstValueImpl<T>::GetSparseTensorValues() const {
1466   const void* out;
1467   ThrowOnError(GetApi().GetSparseTensorValues(this->p_, &out));
1468   return reinterpret_cast<const R*>(out);
1469 }
1470 
1471 #endif
1472 
1473 template <typename T>
1474 void ValueImpl<T>::FillStringTensor(const char* const* s, size_t s_len) {
1475   ThrowOnError(GetApi().FillStringTensor(this->p_, s, s_len));
1476 }
1477 
1478 template <typename T>
1479 void ValueImpl<T>::FillStringTensorElement(const char* s, size_t index) {
1480   ThrowOnError(GetApi().FillStringTensorElement(this->p_, s, index));
1481 }
1482 
1483 template <typename T>
1484 inline char* ValueImpl<T>::GetResizedStringTensorElementBuffer(size_t index, size_t buffer_length) {
1485   char* result;
1486   ThrowOnError(GetApi().GetResizedStringTensorElementBuffer(this->p_, index, buffer_length, &result));
1487   return result;
1488 }
1489 
1490 template <typename T>
1491 void* ValueImpl<T>::GetTensorMutableRawData() {
1492   void* out;
1493   ThrowOnError(GetApi().GetTensorMutableData(this->p_, &out));
1494   return out;
1495 }
1496 
1497 template <typename T>
1498 template <typename R>
1499 R* ValueImpl<T>::GetTensorMutableData() {
1500   R* out;
1501   ThrowOnError(GetApi().GetTensorMutableData(this->p_, (void**)&out));
1502   return out;
1503 }
1504 
1505 template <typename T>
1506 template <typename R>
1507 R& ValueImpl<T>::At(const std::vector<int64_t>& location) {
1508   static_assert(!std::is_same<T, std::string>::value, "this api does not support std::string");
1509   R* out;
1510   ThrowOnError(GetApi().TensorAt(this->p_, location.data(), location.size(), (void**)&out));
1511   return *out;
1512 }
1513 
1514 #if !defined(DISABLE_SPARSE_TENSORS)
1515 template <typename T>
1516 void ValueImpl<T>::UseCooIndices(int64_t* indices_data, size_t indices_num) {
1517   ThrowOnError(GetApi().UseCooIndices(this->p_, indices_data, indices_num));
1518 }
1519 
1520 template <typename T>
1521 void ValueImpl<T>::UseCsrIndices(int64_t* inner_data, size_t inner_num, int64_t* outer_data, size_t outer_num) {
1522   ThrowOnError(GetApi().UseCsrIndices(this->p_, inner_data, inner_num, outer_data, outer_num));
1523 }
1524 
1525 template <typename T>
1526 void ValueImpl<T>::UseBlockSparseIndices(const Shape& indices_shape, int32_t* indices_data) {
1527   ThrowOnError(GetApi().UseBlockSparseIndices(this->p_, indices_shape.shape, indices_shape.shape_len, indices_data));
1528 }
1529 
1530 template <typename T>
1531 void ValueImpl<T>::FillSparseTensorCoo(const OrtMemoryInfo* mem_info, const OrtSparseValuesParam& values_param,
1532                                        const int64_t* indices_data, size_t indices_num) {
1533   ThrowOnError(GetApi().FillSparseTensorCoo(this->p_, mem_info, values_param.values_shape,
1534                                             values_param.values_shape_len, values_param.data.p_data,
1535                                             indices_data, indices_num));
1536 }
1537 
1538 template <typename T>
1539 void ValueImpl<T>::FillSparseTensorCsr(const OrtMemoryInfo* data_mem_info,
1540                                        const OrtSparseValuesParam& values,
1541                                        const int64_t* inner_indices_data, size_t inner_indices_num,
1542                                        const int64_t* outer_indices_data, size_t outer_indices_num) {
1543   ThrowOnError(GetApi().FillSparseTensorCsr(this->p_, data_mem_info, values.values_shape, values.values_shape_len, values.data.p_data,
1544                                             inner_indices_data, inner_indices_num,
1545                                             outer_indices_data, outer_indices_num));
1546 }
1547 
1548 template <typename T>
1549 void ValueImpl<T>::FillSparseTensorBlockSparse(const OrtMemoryInfo* data_mem_info,
1550                                                const OrtSparseValuesParam& values,
1551                                                const Shape& indices_shape,
1552                                                const int32_t* indices_data) {
1553   ThrowOnError(GetApi().FillSparseTensorBlockSparse(this->p_, data_mem_info, values.values_shape, values.values_shape_len, values.data.p_data,
1554                                                     indices_shape.shape, indices_shape.shape_len,
1555                                                     indices_data));
1556 }
1557 
1558 #endif  // !defined(DISABLE_SPARSE_TENSORS)
1559 
1560 }  // namespace detail
1561 
1562 template <typename T>
1563 inline Value Value::CreateTensor(const OrtMemoryInfo* info, T* p_data, size_t p_data_element_count, const int64_t* shape, size_t shape_len) {
1564   return CreateTensor(info, p_data, p_data_element_count * sizeof(T), shape, shape_len, TypeToTensorType<T>::type);
1565 }
1566 
1567 inline Value Value::CreateTensor(const OrtMemoryInfo* info, void* p_data, size_t p_data_byte_count, const int64_t* shape, size_t shape_len,
1568                                  ONNXTensorElementDataType type) {
1569   OrtValue* out;
1570   ThrowOnError(GetApi().CreateTensorWithDataAsOrtValue(info, p_data, p_data_byte_count, shape, shape_len, type, &out));
1571   return Value{out};
1572 }
1573 
1574 template <typename T>
1575 inline Value Value::CreateTensor(OrtAllocator* allocator, const int64_t* shape, size_t shape_len) {
1576   return CreateTensor(allocator, shape, shape_len, TypeToTensorType<T>::type);
1577 }
1578 
1579 inline Value Value::CreateTensor(OrtAllocator* allocator, const int64_t* shape, size_t shape_len, ONNXTensorElementDataType type) {
1580   OrtValue* out;
1581   ThrowOnError(GetApi().CreateTensorAsOrtValue(allocator, shape, shape_len, type, &out));
1582   return Value{out};
1583 }
1584 
1585 #if !defined(DISABLE_SPARSE_TENSORS)
1586 
1587 template <typename T>
1588 inline Value Value::CreateSparseTensor(const OrtMemoryInfo* info, T* p_data, const Shape& dense_shape,
1589                                        const Shape& values_shape) {
1590   return CreateSparseTensor(info, p_data, dense_shape, values_shape, TypeToTensorType<T>::type);
1591 }
1592 
1593 inline Value Value::CreateSparseTensor(const OrtMemoryInfo* info, void* p_data, const Shape& dense_shape,
1594                                        const Shape& values_shape, ONNXTensorElementDataType type) {
1595   OrtValue* out;
1596   ThrowOnError(GetApi().CreateSparseTensorWithValuesAsOrtValue(info, p_data, dense_shape.shape, dense_shape.shape_len,
1597                                                                values_shape.shape, values_shape.shape_len, type, &out));
1598   return Value{out};
1599 }
1600 
1601 template <typename T>
1602 inline Value Value::CreateSparseTensor(OrtAllocator* allocator, const Shape& dense_shape) {
1603   return CreateSparseTensor(allocator, dense_shape, TypeToTensorType<T>::type);
1604 }
1605 
1606 inline Value Value::CreateSparseTensor(OrtAllocator* allocator, const Shape& dense_shape,
1607                                        ONNXTensorElementDataType type) {
1608   OrtValue* out;
1609   ThrowOnError(GetApi().CreateSparseTensorAsOrtValue(allocator, dense_shape.shape, dense_shape.shape_len, type, &out));
1610   return Value{out};
1611 }
1612 #endif  // !defined(DISABLE_SPARSE_TENSORS)
1613 
1614 inline Value Value::CreateMap(const Value& keys, const Value& values) {
1615   OrtValue* out;
1616   const OrtValue* inputs[2] = {keys, values};
1617   ThrowOnError(GetApi().CreateValue(inputs, 2, ONNX_TYPE_MAP, &out));
1618   return Value{out};
1619 }
1620 
1621 inline Value Value::CreateSequence(const std::vector<Value>& values) {
1622   OrtValue* out;
1623   std::vector<const OrtValue*> values_ort{values.data(), values.data() + values.size()};
1624   ThrowOnError(GetApi().CreateValue(values_ort.data(), values_ort.size(), ONNX_TYPE_SEQUENCE, &out));
1625   return Value{out};
1626 }
1627 
1628 template <typename T>
1629 inline Value Value::CreateOpaque(const char* domain, const char* type_name, const T& data_container) {
1630   OrtValue* out;
1631   ThrowOnError(GetApi().CreateOpaqueValue(domain, type_name, &data_container, sizeof(T), &out));
1632   return Value{out};
1633 }
1634 
1635 //
1636 // Custom OP Inlines
1637 //
1638 inline Logger::Logger(const OrtLogger* logger) : logger_(logger) {
1639   Ort::ThrowOnError(GetApi().Logger_GetLoggingSeverityLevel(this->logger_, &this->cached_severity_level_));
1640 }
1641 
1642 inline OrtLoggingLevel Logger::GetLoggingSeverityLevel() const noexcept {
1643   return cached_severity_level_;
1644 }
1645 
1646 inline Status Logger::LogMessage(OrtLoggingLevel log_severity_level, const ORTCHAR_T* file_path, int line_number,
1647                                  const char* func_name, const char* message) const noexcept {
1648   OrtStatus* status = GetApi().Logger_LogMessage(logger_, log_severity_level, message, file_path, line_number,
1649                                                  func_name);
1650   return Status{status};
1651 }
1652 
1653 // Disable warnings about the format string not being a literal (-Wformat-nonliteral and -Wformat-security)
1654 // for gcc and clang. The alternative is to use actual C-style variadic parameters and apply
1655 // __attribute__(format(printf...)), which does not work with variadic templates.
1656 #if defined(__GNUC__)
1657 #pragma GCC diagnostic push
1658 #pragma GCC diagnostic ignored "-Wformat-nonliteral"
1659 #pragma GCC diagnostic ignored "-Wformat-security"
1660 #elif defined(__clang__)
1661 #pragma clang diagnostic push
1662 #pragma clang diagnostic ignored "-Wformat-nonliteral"
1663 #pragma clang diagnostic ignored "-Wformat-security"
1664 #endif
1665 template <typename... Args>
1666 inline Status Logger::LogFormattedMessage(OrtLoggingLevel log_severity_level, const ORTCHAR_T* file_path,
1667                                           int line_number, const char* func_name, const char* format,
1668                                           Args&&... args) const noexcept {
1669   int msg_len = std::snprintf(nullptr, 0U, format, std::forward<Args>(args)...);
1670 
1671   if (msg_len < 0) {  // Formatting error
1672     return Status("Failed to log message due to formatting error", OrtErrorCode::ORT_FAIL);
1673   }
1674 
1675   OrtStatus* status = nullptr;
1676   const size_t buffer_size = static_cast<size_t>(msg_len) + 1U;
1677 
1678   constexpr size_t kStackBufferSize = 1024;
1679 
1680   if (buffer_size < kStackBufferSize) {
1681     char buffer[kStackBufferSize];
1682     snprintf(buffer, kStackBufferSize, format, std::forward<Args>(args)...);
1683     status = GetApi().Logger_LogMessage(logger_, log_severity_level, buffer, file_path, line_number, func_name);
1684   } else {
1685     // std::make_unique is only supported starting at C++14.
1686 #if (__cplusplus >= 201402L) || (_MSC_VER >= 1900)
1687     auto buffer = std::make_unique<char[]>(buffer_size);
1688 #else
1689     std::unique_ptr<char[]> buffer(new char[buffer_size]);
1690 #endif
1691     std::snprintf(buffer.get(), buffer_size, format, std::forward<Args>(args)...);
1692     status = GetApi().Logger_LogMessage(logger_, log_severity_level, buffer.get(), file_path, line_number, func_name);
1693   }
1694 
1695   return Status{status};
1696 }
1697 // Re-enable -Wformat-nonliteral and -Wformat-security
1698 #if defined(__GNUC__)
1699 #pragma GCC diagnostic pop
1700 #elif defined(__clang__)
1701 #pragma clang diagnostic pop
1702 #endif
1703 
1704 inline KernelContext::KernelContext(OrtKernelContext* context) : ctx_(context) {
1705 }
1706 
1707 inline size_t KernelContext::GetInputCount() const {
1708   size_t out = 0;
1709   Ort::ThrowOnError(GetApi().KernelContext_GetInputCount(ctx_, &out));
1710   return out;
1711 }
1712 
1713 inline size_t KernelContext::GetOutputCount() const {
1714   size_t out = 0;
1715   Ort::ThrowOnError(GetApi().KernelContext_GetOutputCount(ctx_, &out));
1716   return out;
1717 }
1718 
1719 inline ConstValue KernelContext::GetInput(size_t index) const {
1720   const OrtValue* out = nullptr;
1721   Ort::ThrowOnError(GetApi().KernelContext_GetInput(ctx_, index, &out));
1722   return ConstValue{out};
1723 }
1724 
1725 inline UnownedValue KernelContext::GetOutput(size_t index, const int64_t* dim_values, size_t dim_count) const {
1726   OrtValue* out = nullptr;
1727   Ort::ThrowOnError(GetApi().KernelContext_GetOutput(ctx_, index, dim_values, dim_count, &out));
1728   return UnownedValue(out);
1729 }
1730 
1731 inline UnownedValue KernelContext::GetOutput(size_t index, const std::vector<int64_t>& dims) const {
1732   OrtValue* out = nullptr;
1733   Ort::ThrowOnError(GetApi().KernelContext_GetOutput(ctx_, index, dims.data(), dims.size(), &out));
1734   return UnownedValue(out);
1735 }
1736 
1737 inline void* KernelContext::GetGPUComputeStream() const {
1738   void* out = nullptr;
1739   Ort::ThrowOnError(GetApi().KernelContext_GetGPUComputeStream(ctx_, &out));
1740   return out;
1741 }
1742 
1743 inline OrtAllocator* KernelContext::GetAllocator(const OrtMemoryInfo& memory_info) const {
1744   OrtAllocator* out = nullptr;
1745   Ort::ThrowOnError(GetApi().KernelContext_GetAllocator(ctx_, &memory_info, &out));
1746   return out;
1747 }
1748 
1749 inline Logger KernelContext::GetLogger() const {
1750   const OrtLogger* out = nullptr;
1751   ThrowOnError(GetApi().KernelContext_GetLogger(this->ctx_, &out));
1752   return Logger{out};
1753 }
1754 
1755 inline void KernelContext::ParallelFor(void (*fn)(void*, size_t), size_t total, size_t num_batch, void* usr_data) const {
1756   ThrowOnError(GetApi().KernelContext_ParallelFor(ctx_, fn, total, num_batch, usr_data));
1757 }
1758 
1759 inline OpAttr::OpAttr(const char* name, const void* data, int len, OrtOpAttrType type) {
1760   Ort::ThrowOnError(GetApi().CreateOpAttr(name, data, len, type, &p_));
1761 }
1762 
1763 namespace detail {
1764 template <typename T>
1765 inline KernelInfo KernelInfoImpl<T>::Copy() const {
1766   OrtKernelInfo* info_copy = nullptr;
1767   Ort::ThrowOnError(GetApi().CopyKernelInfo(this->p_, &info_copy));
1768   return KernelInfo{info_copy};
1769 }
1770 
1771 template <typename T>
1772 inline size_t KernelInfoImpl<T>::GetInputCount() const {
1773   size_t out = 0;
1774   ThrowOnError(GetApi().KernelInfo_GetInputCount(this->p_, &out));
1775   return out;
1776 }
1777 
1778 template <typename T>
1779 inline size_t KernelInfoImpl<T>::GetOutputCount() const {
1780   size_t out = 0;
1781   ThrowOnError(GetApi().KernelInfo_GetOutputCount(this->p_, &out));
1782   return out;
1783 }
1784 
1785 template <typename T>
1786 inline std::string KernelInfoImpl<T>::GetInputName(size_t index) const {
1787   size_t size = 0;
1788 
1789   // Feed nullptr for the data buffer to query the true size of the string value
1790   Ort::ThrowOnError(GetApi().KernelInfo_GetInputName(this->p_, index, nullptr, &size));
1791 
1792   std::string out;
1793   out.resize(size);
1794   Ort::ThrowOnError(GetApi().KernelInfo_GetInputName(this->p_, index, &out[0], &size));
1795   out.resize(size - 1);  // remove the terminating character '\0'
1796 
1797   return out;
1798 }
1799 
1800 template <typename T>
1801 inline std::string KernelInfoImpl<T>::GetOutputName(size_t index) const {
1802   size_t size = 0;
1803 
1804   // Feed nullptr for the data buffer to query the true size of the string value
1805   Ort::ThrowOnError(GetApi().KernelInfo_GetOutputName(this->p_, index, nullptr, &size));
1806 
1807   std::string out;
1808   out.resize(size);
1809   Ort::ThrowOnError(GetApi().KernelInfo_GetOutputName(this->p_, index, &out[0], &size));
1810   out.resize(size - 1);  // remove the terminating character '\0'
1811 
1812   return out;
1813 }
1814 
1815 template <typename T>
1816 inline TypeInfo KernelInfoImpl<T>::GetInputTypeInfo(size_t index) const {
1817   OrtTypeInfo* out = nullptr;
1818   ThrowOnError(GetApi().KernelInfo_GetInputTypeInfo(this->p_, index, &out));
1819   return TypeInfo{out};
1820 }
1821 
1822 template <typename T>
1823 inline TypeInfo KernelInfoImpl<T>::GetOutputTypeInfo(size_t index) const {
1824   OrtTypeInfo* out = nullptr;
1825   ThrowOnError(GetApi().KernelInfo_GetOutputTypeInfo(this->p_, index, &out));
1826   return TypeInfo{out};
1827 }
1828 
1829 template <typename T>
1830 inline Value KernelInfoImpl<T>::GetTensorAttribute(const char* name, OrtAllocator* allocator) const {
1831   OrtValue* out = nullptr;
1832   ThrowOnError(GetApi().KernelInfoGetAttribute_tensor(this->p_, name, allocator, &out));
1833   return Value{out};
1834 }
1835 
1836 template <typename T>
1837 inline ConstValue KernelInfoImpl<T>::GetTensorConstantInput(size_t index, int* is_constant) const {
1838   const OrtValue* out = nullptr;
1839   ThrowOnError(GetApi().KernelInfoGetConstantInput_tensor(this->p_, index, is_constant, &out));
1840   return ConstValue{out};
1841 }
1842 
1843 template <typename T>
1844 inline std::string KernelInfoImpl<T>::GetNodeName() const {
1845   size_t size = 0;
1846 
1847   // Feed nullptr for the data buffer to query the true size of the string value
1848   Ort::ThrowOnError(GetApi().KernelInfo_GetNodeName(this->p_, nullptr, &size));
1849 
1850   std::string out;
1851   out.resize(size);
1852   Ort::ThrowOnError(GetApi().KernelInfo_GetNodeName(this->p_, &out[0], &size));
1853   out.resize(size - 1);  // remove the terminating character '\0'
1854 
1855   return out;
1856 }
1857 
1858 template <typename T>
1859 inline Logger KernelInfoImpl<T>::GetLogger() const {
1860   const OrtLogger* out = nullptr;
1861   ThrowOnError(GetApi().KernelInfo_GetLogger(this->p_, &out));
1862   return Logger{out};
1863 }
1864 
1865 inline void attr_utils::GetAttr(const OrtKernelInfo* p, const char* name, float& out) {
1866   Ort::ThrowOnError(GetApi().KernelInfoGetAttribute_float(p, name, &out));
1867 }
1868 
1869 inline void attr_utils::GetAttr(const OrtKernelInfo* p, const char* name, int64_t& out) {
1870   Ort::ThrowOnError(GetApi().KernelInfoGetAttribute_int64(p, name, &out));
1871 }
1872 
1873 inline void attr_utils::GetAttr(const OrtKernelInfo* p, const char* name, std::string& result) {
1874   size_t size = 0;
1875   // Feed nullptr for the data buffer to query the true size of the string attribute
1876   Ort::ThrowOnError(GetApi().KernelInfoGetAttribute_string(p, name, nullptr, &size));
1877 
1878   std::string out;
1879   out.resize(size);
1880   Ort::ThrowOnError(GetApi().KernelInfoGetAttribute_string(p, name, &out[0], &size));
1881   out.resize(size - 1);  // remove the terminating character '\0'
1882   out.swap(result);
1883 }
1884 
1885 inline void attr_utils::GetAttrs(const OrtKernelInfo* p, const char* name, std::vector<float>& result) {
1886   size_t size = 0;
1887   // Feed nullptr for the data buffer to query the true size of the attribute
1888   Ort::ThrowOnError(GetApi().KernelInfoGetAttributeArray_float(p, name, nullptr, &size));
1889 
1890   std::vector<float> out;
1891   out.resize(size);
1892   Ort::ThrowOnError(GetApi().KernelInfoGetAttributeArray_float(p, name, out.data(), &size));
1893   out.swap(result);
1894 }
1895 
1896 inline void attr_utils::GetAttrs(const OrtKernelInfo* p, const char* name, std::vector<int64_t>& result) {
1897   size_t size = 0;
1898 
1899   // Feed nullptr for the data buffer to query the true size of the attribute
1900   Ort::ThrowOnError(GetApi().KernelInfoGetAttributeArray_int64(p, name, nullptr, &size));
1901 
1902   std::vector<int64_t> out;
1903   out.resize(size);
1904   Ort::ThrowOnError(GetApi().KernelInfoGetAttributeArray_int64(p, name, out.data(), &size));
1905   out.swap(result);
1906 }
1907 }  // namespace detail
1908 
1909 inline KernelInfo::KernelInfo(OrtKernelInfo* info) : detail::KernelInfoImpl<OrtKernelInfo>{info} {}
1910 
1911 inline Op::Op(OrtOp* p) : Base<OrtOp>(p) {}
1912 
1913 inline Op Op::Create(const OrtKernelInfo* info, const char* op_name, const char* domain, int version,
1914                      const char** type_constraint_names,
1915                      const ONNXTensorElementDataType* type_constraint_values,
1916                      size_t type_constraint_count,
1917                      const OpAttr* attr_values, size_t attr_count,
1918                      size_t input_count, size_t output_count) {
1919   static_assert(sizeof(OpAttr) == sizeof(OrtOpAttr*),
1920                 "OpAttr's is expected to be just an array of OrtOpAttr in memory so we can reinterpret safely");
1921   auto attr_input_values = reinterpret_cast<const OrtOpAttr* const*>(attr_values);
1922   OrtOp* op;
1923   Ort::ThrowOnError(GetApi().CreateOp(info, op_name, domain, version, type_constraint_names, type_constraint_values,
1924                                       static_cast<int>(type_constraint_count),
1925                                       attr_input_values,
1926                                       static_cast<int>(attr_count),
1927                                       static_cast<int>(input_count),
1928                                       static_cast<int>(output_count), &op));
1929   return Op{op};
1930 }
1931 
1932 inline void Op::Invoke(const OrtKernelContext* context,
1933                        const Value* input_values,
1934                        size_t input_count,
1935                        Value* output_values,
1936                        size_t output_count) {
1937   static_assert(sizeof(Value) == sizeof(OrtValue*),
1938                 "Value is really just an array of OrtValue* in memory, so we can reinterpret_cast safely");
1939   auto ort_input_values = reinterpret_cast<const OrtValue* const*>(input_values);
1940   auto ort_output_values = reinterpret_cast<OrtValue**>(output_values);
1941   Ort::ThrowOnError(GetApi().InvokeOp(context, p_, ort_input_values, static_cast<int>(input_count),
1942                                       ort_output_values, static_cast<int>(output_count)));
1943 }
1944 
1945 inline void Op::Invoke(const OrtKernelContext* context,
1946                        const OrtValue* const* input_values,
1947                        size_t input_count,
1948                        OrtValue* const* output_values,
1949                        size_t output_count) {
1950   Ort::ThrowOnError(GetApi().InvokeOp(context, p_, input_values, static_cast<int>(input_count),
1951                                       output_values, static_cast<int>(output_count)));
1952 }
1953 
1954 inline std::string GetVersionString() {
1955   return OrtGetApiBase()->GetVersionString();
1956 }
1957 
1958 inline std::string GetBuildInfoString() {
1959   return GetApi().GetBuildInfoString();
1960 }
1961 
1962 inline std::vector<std::string> GetAvailableProviders() {
1963   char** providers;
1964   int len;
1965 
1966   auto release_fn = [&len](char** providers) {
1967     // This should always return nullptr.
1968     ThrowOnError(GetApi().ReleaseAvailableProviders(providers, len));
1969   };
1970 
1971   ThrowOnError(GetApi().GetAvailableProviders(&providers, &len));
1972   std::unique_ptr<char*, decltype(release_fn)> guard(providers, release_fn);
1973   std::vector<std::string> available_providers;
1974   available_providers.reserve(static_cast<size_t>(len));
1975   for (int i = 0; i < len; ++i) {
1976     available_providers.emplace_back(providers[i]);
1977   }
1978   return available_providers;
1979 }
1980 
1981 template <typename TOp, typename TKernel, bool WithStatus>
1982 void CustomOpBase<TOp, TKernel, WithStatus>::GetSessionConfigs(std::unordered_map<std::string, std::string>& out,
1983                                                                ConstSessionOptions options) const {
1984   const TOp* derived = static_cast<const TOp*>(this);
1985   std::vector<std::string> keys = derived->GetSessionConfigKeys();
1986 
1987   out.reserve(keys.size());
1988 
1989   std::string config_entry_key = detail::MakeCustomOpConfigEntryKey(derived->GetName(), "");
1990   const size_t prefix_size = config_entry_key.length();
1991 
1992   for (const auto& key : keys) {
1993     config_entry_key.resize(prefix_size);
1994     config_entry_key.append(key);
1995     out[key] = options.GetConfigEntryOrDefault(config_entry_key.c_str(), "");
1996   }
1997 }
1998 
1999 inline ShapeInferContext::ShapeInferContext(const OrtApi* ort_api,
2000                                             OrtShapeInferContext* ctx) : ort_api_(ort_api), ctx_(ctx) {
2001   size_t input_count = 0;
2002   Ort::ThrowOnError(ort_api_->ShapeInferContext_GetInputCount(ctx_, &input_count));
2003   for (size_t ith_input = 0; ith_input < input_count; ++ith_input) {
2004     OrtTensorTypeAndShapeInfo* info{};
2005     Ort::ThrowOnError(ort_api_->ShapeInferContext_GetInputTypeShape(ctx, ith_input, &info));
2006     TensorTypeAndShapeInfo type_shape_info(info);
2007     auto integer_shape = type_shape_info.GetShape();
2008     std::vector<const char*> symbolic_shape(integer_shape.size(), {});
2009     if (!integer_shape.empty()) {
2010       type_shape_info.GetSymbolicDimensions(&symbolic_shape[0], integer_shape.size());
2011     }
2012     Shape shape;
2013     for (size_t ith = 0; ith < integer_shape.size(); ++ith) {
2014       if (symbolic_shape[ith] && std::string{symbolic_shape[ith]}.size() > 0) {
2015         shape.emplace_back(symbolic_shape[ith]);
2016       } else {
2017         shape.emplace_back(integer_shape[ith]);
2018       }
2019     }
2020     input_shapes_.push_back(std::move(shape));
2021     type_shape_info.release();
2022   }
2023 }
2024 
2025 inline Status ShapeInferContext::SetOutputShape(size_t indice, const Shape& shape, ONNXTensorElementDataType type) {
2026   OrtTensorTypeAndShapeInfo* info = {};
2027   ORT_CXX_RETURN_ON_API_FAIL(ort_api_->CreateTensorTypeAndShapeInfo(&info));
2028   ORT_CXX_RETURN_ON_API_FAIL(ort_api_->SetTensorElementType(info, type));
2029 
2030   using InfoPtr = std::unique_ptr<OrtTensorTypeAndShapeInfo, std::function<void(OrtTensorTypeAndShapeInfo*)>>;
2031 
2032   InfoPtr info_ptr(info, [this](OrtTensorTypeAndShapeInfo* obj) {
2033     ort_api_->ReleaseTensorTypeAndShapeInfo(obj);
2034   });
2035 
2036   std::vector<int64_t> integer_dims;
2037   std::vector<const char*> symbolic_dims;
2038 
2039   for (const auto dim : shape) {
2040     if (dim.IsInt()) {
2041       integer_dims.push_back(dim.AsInt());
2042       symbolic_dims.push_back("");
2043     } else {
2044       if (!dim.AsSym() || std::string{dim.AsSym()}.empty()) {
2045         ORT_CXX_API_THROW("Symbolic dim must not be an empty string", ORT_INVALID_ARGUMENT);
2046       }
2047       integer_dims.push_back(SymbolicInteger::INVALID_INT_DIM);
2048       symbolic_dims.push_back(dim.AsSym());
2049     }
2050   }
2051 
2052   ORT_CXX_RETURN_ON_API_FAIL(ort_api_->SetDimensions(info, integer_dims.data(), integer_dims.size()));
2053   ORT_CXX_RETURN_ON_API_FAIL(ort_api_->SetSymbolicDimensions(info, symbolic_dims.data(), symbolic_dims.size()));
2054   ORT_CXX_RETURN_ON_API_FAIL(ort_api_->ShapeInferContext_SetOutputTypeShape(ctx_, indice, info));
2055   return Status{nullptr};
2056 }
2057 
2058 inline int64_t ShapeInferContext::GetAttrInt(const char* attr_name) {
2059   const auto* attr = GetAttrHdl(attr_name);
2060   int64_t i = {};
2061   size_t out = {};
2062   Ort::ThrowOnError(ort_api_->ReadOpAttr(attr, ORT_OP_ATTR_INT, &i, sizeof(i), &out));
2063   return i;
2064 }
2065 
2066 inline ShapeInferContext::Ints ShapeInferContext::GetAttrInts(const char* attr_name) {
2067   const auto* attr = GetAttrHdl(attr_name);
2068   int64_t i = {};
2069   size_t out = {};
2070   // first call to get the bytes needed
2071   // 1. A status == nullptr means that ReadOpAttr was successful. A status != nullptr means failure.
2072   // 2. The ReadOpAttr function should normally be called twice: once to get the needed buffer size (returns a status != nullptr), and a second time to actually read the ints (returns status == null on success).
2073   // 3. This code tries a subtle optimization in the first call to ReadOpAttr. It passes in a buffer (&i) of size 1 just in case there is only 1 int. In this case, status == nullptr and we need to return {i}.
2074   auto status = ort_api_->ReadOpAttr(attr, ORT_OP_ATTR_INTS, &i, sizeof(i), &out);
2075   if (status) {
2076     size_t num_i = out / sizeof(int64_t);
2077     ShapeInferContext::Ints ints(num_i, 0);
2078     Ort::ThrowOnError(ort_api_->ReadOpAttr(attr, ORT_OP_ATTR_INTS, ints.data(), out, &out));
2079     return ints;
2080   } else {
2081     if (out == 0u) {
2082       return {};
2083     }
2084     return {i};
2085   }
2086 }
2087 
2088 inline float ShapeInferContext::GetAttrFloat(const char* attr_name) {
2089   const auto* attr = GetAttrHdl(attr_name);
2090   float f = {};
2091   size_t out = {};
2092   Ort::ThrowOnError(ort_api_->ReadOpAttr(attr, ORT_OP_ATTR_FLOAT, &f, sizeof(f), &out));
2093   return f;
2094 }
2095 
2096 inline ShapeInferContext::Floats ShapeInferContext::GetAttrFloats(const char* attr_name) {
2097   const auto* attr = GetAttrHdl(attr_name);
2098   float f = {};
2099   size_t out = {};
2100   // first call to get the bytes needed
2101   // 1. A status == nullptr means that ReadOpAttr was successful. A status != nullptr means failure.
2102   // 2. The ReadOpAttr function should normally be called twice: once to get the needed buffer size (returns a status != nullptr), and a second time to actually read the ints (returns status == null on success).
2103   // 3. This code tries a subtle optimization in the first call to ReadOpAttr. It passes in a buffer (&i) of size 1 just in case there is only 1 int. In this case, status == nullptr and we need to return {i}.
2104   auto status = ort_api_->ReadOpAttr(attr, ORT_OP_ATTR_FLOATS, &f, sizeof(f), &out);
2105   if (status) {
2106     size_t num_f = out / sizeof(float);
2107     ShapeInferContext::Floats floats(num_f, 0);
2108     Ort::ThrowOnError(ort_api_->ReadOpAttr(attr, ORT_OP_ATTR_FLOATS, floats.data(), out, &out));
2109     return floats;
2110   } else {
2111     if (out == 0u) {
2112       return {};
2113     }
2114     return {f};
2115   }
2116 }
2117 
2118 inline std::string ShapeInferContext::GetAttrString(const char* attr_name) {
2119   const auto* attr = GetAttrHdl(attr_name);
2120   char c = {};
2121   size_t out = {};
2122   // first call to get the bytes needed
2123   auto status = ort_api_->ReadOpAttr(attr, ORT_OP_ATTR_STRING, &c, sizeof(char), &out);
2124   if (status) {
2125     std::vector<char> chars(out, '\0');
2126     Ort::ThrowOnError(ort_api_->ReadOpAttr(attr, ORT_OP_ATTR_STRING, chars.data(), out, &out));
2127     return {chars.data()};
2128   } else {
2129     return {c};
2130   }
2131 }
2132 
2133 inline ShapeInferContext::Strings ShapeInferContext::GetAttrStrings(const char* attr_name) {
2134   const auto* attr = GetAttrHdl(attr_name);
2135   char c = {};
2136   size_t out = {};
2137   // first call to get the bytes needed
2138   // 1. A status == nullptr means that ReadOpAttr was successful. A status != nullptr means failure.
2139   // 2. The ReadOpAttr function should normally be called twice: once to get the needed buffer size (returns a status != nullptr), and a second time to actually read the ints (returns status == null on success).
2140   // 3. This code tries a subtle optimization in the first call to ReadOpAttr. It passes in a buffer (&i) of size 1 just in case there is only 1 int. In this case, status == nullptr and we need to return {i}.
2141   auto status = ort_api_->ReadOpAttr(attr, ORT_OP_ATTR_STRINGS, &c, sizeof(char), &out);
2142   if (status) {
2143     std::vector<char> chars(out, '\0');
2144     Ort::ThrowOnError(ort_api_->ReadOpAttr(attr, ORT_OP_ATTR_STRINGS, chars.data(), out, &out));
2145     ShapeInferContext::Strings strings;
2146     char* char_st = chars.data();
2147     char* char_ed = char_st + out;
2148     while (char_st < char_ed) {
2149       strings.emplace_back(char_st);
2150       while (*char_st != '\0') {
2151         char_st++;
2152       }
2153       char_st++;
2154     }
2155     return strings;
2156   } else {
2157     if (out == 0u) {
2158       return {};
2159     }
2160     return {std::string{c}};
2161   }
2162 }
2163 
2164 inline const OrtOpAttr* ShapeInferContext::GetAttrHdl(const char* attr_name) const {
2165   const OrtOpAttr* attr_hdl = {};
2166   Ort::ThrowOnError(ort_api_->ShapeInferContext_GetAttribute(ctx_, attr_name, &attr_hdl));
2167   return attr_hdl;
2168 }
2169 
2170 }  // namespace Ort