onnxruntime/objectivec/include/ort_session.h
Edward Chen f236768d5c
[ios] Enable --use_extensions with custom built iOS pod (#16711)
- Fix link errors by including the needed onnxruntime-extensions libraries in the static framework.
- Add Objective-C API to register custom ops from embedded onnxruntime-extensions.

Caveat: Not all onnxruntime-extensions build options are working yet. E.g., building with the onnxruntime-extensions OpenCV dependency does not work.
2023-07-14 15:37:16 -07:00

314 lines
12 KiB
Objective-C

// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
#import <Foundation/Foundation.h>
#import "ort_custom_op_registration.h"
#import "ort_enums.h"
NS_ASSUME_NONNULL_BEGIN
@class ORTEnv;
@class ORTRunOptions;
@class ORTSessionOptions;
@class ORTValue;
/**
* An ORT session loads and runs a model.
*/
@interface ORTSession : NSObject
- (instancetype)init NS_UNAVAILABLE;
/**
* Creates a session.
*
* @param env The ORT Environment instance.
* @param path The path to the ONNX model.
* @param sessionOptions Optional session configuration options.
* @param error Optional error information set if an error occurs.
* @return The instance, or nil if an error occurs.
*/
- (nullable instancetype)initWithEnv:(ORTEnv*)env
modelPath:(NSString*)path
sessionOptions:(nullable ORTSessionOptions*)sessionOptions
error:(NSError**)error NS_DESIGNATED_INITIALIZER;
/**
* Runs the model.
* The inputs and outputs are pre-allocated.
*
* @param inputs Dictionary of input names to input ORT values.
* @param outputs Dictionary of output names to output ORT values.
* @param runOptions Optional run configuration options.
* @param error Optional error information set if an error occurs.
* @return Whether the model was run successfully.
*/
- (BOOL)runWithInputs:(NSDictionary<NSString*, ORTValue*>*)inputs
outputs:(NSDictionary<NSString*, ORTValue*>*)outputs
runOptions:(nullable ORTRunOptions*)runOptions
error:(NSError**)error;
/**
* Runs the model.
* The inputs are pre-allocated and the outputs are allocated by ORT.
*
* @param inputs Dictionary of input names to input ORT values.
* @param outputNames Set of output names.
* @param runOptions Optional run configuration options.
* @param error Optional error information set if an error occurs.
* @return A dictionary of output names to output ORT values with the outputs
* requested in `outputNames`, or nil if an error occurs.
*/
- (nullable NSDictionary<NSString*, ORTValue*>*)runWithInputs:(NSDictionary<NSString*, ORTValue*>*)inputs
outputNames:(NSSet<NSString*>*)outputNames
runOptions:(nullable ORTRunOptions*)runOptions
error:(NSError**)error;
/**
* Gets the model's input names.
*
* @param error Optional error information set if an error occurs.
* @return An array of input names, or nil if an error occurs.
*/
- (nullable NSArray<NSString*>*)inputNamesWithError:(NSError**)error;
/**
* Gets the model's overridable initializer names.
*
* @param error Optional error information set if an error occurs.
* @return An array of overridable initializer names, or nil if an error occurs.
*/
- (nullable NSArray<NSString*>*)overridableInitializerNamesWithError:(NSError**)error;
/**
* Gets the model's output names.
*
* @param error Optional error information set if an error occurs.
* @return An array of output names, or nil if an error occurs.
*/
- (nullable NSArray<NSString*>*)outputNamesWithError:(NSError**)error;
@end
/**
* Options for configuring a session.
*/
@interface ORTSessionOptions : NSObject
- (instancetype)init NS_UNAVAILABLE;
/**
* Creates session configuration options.
*
* @param error Optional error information set if an error occurs.
* @return The instance, or nil if an error occurs.
*/
- (nullable instancetype)initWithError:(NSError**)error NS_SWIFT_NAME(init());
/**
* Appends an execution provider to the session options to enable the execution provider to be used when running
* the model.
*
* Available since 1.14.
*
* The execution provider list is ordered by decreasing priority.
* i.e. the first provider registered has the highest priority.
*
* @param providerName Provider name. For example, "xnnpack".
* @param providerOptions Provider-specific options. For example, for provider "xnnpack", {"intra_op_num_threads": "2"}.
* @param error Optional error information set if an error occurs.
* @return Whether the execution provider was appended successfully
*/
- (BOOL)appendExecutionProvider:(NSString*)providerName
providerOptions:(NSDictionary<NSString*, NSString*>*)providerOptions
error:(NSError**)error;
/**
* Sets the number of threads used to parallelize the execution within nodes.
* A value of 0 means ORT will pick a default value.
*
* @param intraOpNumThreads The number of threads.
* @param error Optional error information set if an error occurs.
* @return Whether the option was set successfully.
*/
- (BOOL)setIntraOpNumThreads:(int)intraOpNumThreads
error:(NSError**)error;
/**
* Sets the graph optimization level.
*
* @param graphOptimizationLevel The graph optimization level.
* @param error Optional error information set if an error occurs.
* @return Whether the option was set successfully.
*/
- (BOOL)setGraphOptimizationLevel:(ORTGraphOptimizationLevel)graphOptimizationLevel
error:(NSError**)error;
/**
* Sets the path to which the optimized model file will be saved.
*
* @param optimizedModelFilePath The optimized model file path.
* @param error Optional error information set if an error occurs.
* @return Whether the option was set successfully.
*/
- (BOOL)setOptimizedModelFilePath:(NSString*)optimizedModelFilePath
error:(NSError**)error;
/**
* Sets the session log ID.
*
* @param logID The log ID.
* @param error Optional error information set if an error occurs.
* @return Whether the option was set successfully.
*/
- (BOOL)setLogID:(NSString*)logID
error:(NSError**)error;
/**
* Sets the session log severity level.
*
* @param loggingLevel The log severity level.
* @param error Optional error information set if an error occurs.
* @return Whether the option was set successfully.
*/
- (BOOL)setLogSeverityLevel:(ORTLoggingLevel)loggingLevel
error:(NSError**)error;
/**
* Sets a session configuration key-value pair.
* Any value for a previously set key will be overwritten.
* The session configuration keys and values are documented here:
* https://github.com/microsoft/onnxruntime/blob/main/include/onnxruntime/core/session/onnxruntime_session_options_config_keys.h
*
* @param key The key.
* @param value The value.
* @param error Optional error information set if an error occurs.
* @return Whether the option was set successfully.
*/
- (BOOL)addConfigEntryWithKey:(NSString*)key
value:(NSString*)value
error:(NSError**)error;
/**
* Registers custom ops for use with `ORTSession`s using this SessionOptions by calling the specified
* native function name. The custom ops library must either be linked against, or have previously been loaded
* by the user.
*
* Available since 1.14.
*
* The registration function must have the signature:
* `OrtStatus* (*fn)(OrtSessionOptions* options, const OrtApiBase* api);`
*
* The signature is defined in the ONNX Runtime C API:
* https://github.com/microsoft/onnxruntime/blob/67f4cd54fab321d83e4a75a40efeee95a6a17079/include/onnxruntime/core/session/onnxruntime_c_api.h#L697
*
* See https://onnxruntime.ai/docs/reference/operators/add-custom-op.html for more information on custom ops.
* See https://github.com/microsoft/onnxruntime/blob/342a5bf2b756d1a1fc6fdc582cfeac15182632fe/onnxruntime/test/testdata/custom_op_library/custom_op_library.cc#L115
* for an example of a custom op library registration function.
*
* @note The caller must ensure that `registrationFuncName` names a valid function that is visible to the native ONNX
* Runtime code and has the correct signature.
* They must ensure that the function does what they expect it to do because this method will just call it.
*
* @param registrationFuncName The name of the registration function to call.
* @param error Optional error information set if an error occurs.
* @return Whether the registration function was successfully called.
*/
- (BOOL)registerCustomOpsUsingFunction:(NSString*)registrationFuncName
error:(NSError**)error;
/**
* Registers custom ops for use with `ORTSession`s using this SessionOptions by calling the specified function
* pointed to by `registerCustomOpsFn`.
*
* Available since 1.16.
*
* The registration function must have the signature:
* `OrtStatus* (*fn)(OrtSessionOptions* options, const OrtApiBase* api);`
*
* The signature is defined in the ONNX Runtime C API:
* https://github.com/microsoft/onnxruntime/blob/67f4cd54fab321d83e4a75a40efeee95a6a17079/include/onnxruntime/core/session/onnxruntime_c_api.h#L697
*
* See https://onnxruntime.ai/docs/reference/operators/add-custom-op.html for more information on custom ops.
* See https://github.com/microsoft/onnxruntime/blob/342a5bf2b756d1a1fc6fdc582cfeac15182632fe/onnxruntime/test/testdata/custom_op_library/custom_op_library.cc#L115
* for an example of a custom op library registration function.
*
* @note The caller must ensure that `registerCustomOpsFn` is a valid function pointer and has the correct signature.
* They must ensure that the function does what they expect it to do because this method will just call it.
*
* @param registerCustomOpsFn A pointer to the registration function to call.
* @param error Optional error information set if an error occurs.
* @return Whether the registration function was successfully called.
*/
- (BOOL)registerCustomOpsUsingFunctionPointer:(ORTCAPIRegisterCustomOpsFnPtr)registerCustomOpsFn
error:(NSError**)error;
/**
* Registers ONNX Runtime Extensions custom ops that have been built in to ONNX Runtime.
*
* Available since 1.16.
*
* @note ONNX Runtime must have been built with the `--use_extensions` flag for the ONNX Runtime Extensions custom ops
* to be able to be registered with this method. When using a separate ONNX Runtime Extensions library, use
* `registerCustomOpsUsingFunctionPointer:error:` instead.
*
* @param error Optional error information set if an error occurs.
* @return Whether the ONNX Runtime Extensions custom ops were successfully registered.
*/
- (BOOL)enableOrtExtensionsCustomOpsWithError:(NSError**)error;
@end
/**
* Options for configuring a run.
*/
@interface ORTRunOptions : NSObject
- (instancetype)init NS_UNAVAILABLE;
/**
* Creates run configuration options.
*
* @param error Optional error information set if an error occurs.
* @return The instance, or nil if an error occurs.
*/
- (nullable instancetype)initWithError:(NSError**)error NS_SWIFT_NAME(init());
/**
* Sets the run log tag.
*
* @param logTag The log tag.
* @param error Optional error information set if an error occurs.
* @return Whether the option was set successfully.
*/
- (BOOL)setLogTag:(NSString*)logTag
error:(NSError**)error;
/**
* Sets the run log severity level.
*
* @param loggingLevel The log severity level.
* @param error Optional error information set if an error occurs.
* @return Whether the option was set successfully.
*/
- (BOOL)setLogSeverityLevel:(ORTLoggingLevel)loggingLevel
error:(NSError**)error;
/**
* Sets a run configuration key-value pair.
* Any value for a previously set key will be overwritten.
* The run configuration keys and values are documented here:
* https://github.com/microsoft/onnxruntime/blob/main/include/onnxruntime/core/session/onnxruntime_run_options_config_keys.h
*
* @param key The key.
* @param value The value.
* @param error Optional error information set if an error occurs.
* @return Whether the option was set successfully.
*/
- (BOOL)addConfigEntryWithKey:(NSString*)key
value:(NSString*)value
error:(NSError**)error;
@end
NS_ASSUME_NONNULL_END