ie_common.h

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 // Copyright (C) 2018-2019 Intel Corporation


 // SPDX-License-Identifier: Apache-2.0


 //


 


 /**


  * @brief This is a header file with common inference engine definitions.


  * @file ie_common.h


  */


 #pragma once


 

 #include <vector>


 #include <memory>


 #include <string>


 #include <ostream>


 #include <algorithm>


 #include <cstdlib>


 #include <details/ie_exception.hpp>


 

 #include "ie_unicode.hpp"


 

 namespace InferenceEngine {


 /**


  * @brief Represents tensor size.


  * The order is opposite to the order in Caffe*: (w,h,n,b) where the most frequently changing element in memory is first.


  */


 using SizeVector = std::vector<size_t>;

 


 /**


  * @brief This class represents the generic layer.


  */


 class CNNLayer;

 


 /**


  * @brief A smart pointer to the CNNLayer


  */


 using CNNLayerPtr = std::shared_ptr<CNNLayer>;


 /**


  * @brief A smart weak pointer to the CNNLayer


  */


 using  CNNLayerWeakPtr = std::weak_ptr<CNNLayer>;

 


 /**


  * @brief The main data representation node


  */


 class Data;

 


 /**


  * @brief Smart pointer to Data


  */


 using DataPtr = std::shared_ptr<Data>;

 


 /**


  * @brief Smart pointer to constant Data


  */


 using CDataPtr = std::shared_ptr<const Data>;

 


 /**


  * @brief Smart weak pointer to Data


  */


 using DataWeakPtr = std::weak_ptr<Data>;

 


 /**


  * @union UserValue


  * @brief The method holds the user values to enable binding of data per graph node.


  */


 union UserValue {

     int v_int;

     float v_float;

     void *v_ptr;

 };

 


 /**


  * @enum Layout


  * @brief Layouts that the inference engine supports


  */


 enum Layout : uint8_t {

     ANY = 0,           // "any" layout


 

     // I/O data layouts


     NCHW = 1,

     NHWC = 2,

     NCDHW = 3,

     NDHWC = 4,

 

     // weight layouts


     OIHW = 64,

 

     // Scalar


     SCALAR = 95,

 

     // bias layouts


     C = 96,

 

     // Single image layout (for mean image)


     CHW = 128,

 

     // 2D


     HW = 192,

     NC = 193,

     CN = 194,

 

     BLOCKED = 200,

 };

 inline std::ostream & operator << (std::ostream &out, const Layout & p) {

     switch (p) {

 #define PRINT_LAYOUT(name)\


         case name : out << #name; break;


 

             PRINT_LAYOUT(ANY);

             PRINT_LAYOUT(NCHW);

             PRINT_LAYOUT(NHWC);

             PRINT_LAYOUT(OIHW);

             PRINT_LAYOUT(C);

             PRINT_LAYOUT(CHW);

             PRINT_LAYOUT(HW);

             PRINT_LAYOUT(NC);

             PRINT_LAYOUT(CN);

             PRINT_LAYOUT(BLOCKED);

 #undef PRINT_LAYOUT


             default:

                  out << static_cast<int>(p);

             break;

         }

         return out;

     }

 

 


 /**


  * @struct InferenceEngineProfileInfo


  * @brief Represents basic inference profiling information per layer.


  * If the layer is executed using tiling, the sum time per each tile is indicated as the total execution time.


  * Due to parallel execution, the total execution time for all layers might be greater than the total inference time.


  */


 struct InferenceEngineProfileInfo {


     /**


      * @brief Defines the general status of the layer


      */


     enum LayerStatus {

         NOT_RUN,

         OPTIMIZED_OUT,

         EXECUTED

     };

 

     LayerStatus status;


     /**


      * @brief The absolute time in microseconds that the layer ran (in total)


      */


     long long realTime_uSec;


     /**


      * @brief The net host cpu time that the layer ran


      */


     long long cpu_uSec;

 


     /**


      * @brief An execution type of unit


      */


     char exec_type[256] = {};

 


     /**


      * @brief A layer type


      */


     char layer_type[256] = {};

 


     /**


      * @brief An execution index of the unit


      */


     unsigned execution_index;

 };

 

 


 /**


  * @enum StatusCode


  * @brief This enum contains codes for all possible return values of the interface functions


  */


 enum StatusCode : int {

     OK = 0,

     GENERAL_ERROR = -1,

     NOT_IMPLEMENTED = -2,

     NETWORK_NOT_LOADED = -3,

     PARAMETER_MISMATCH = -4,

     NOT_FOUND = -5,

     OUT_OF_BOUNDS = -6,

     /*


      * @brief exception not of std::exception derived type was thrown


      */


     UNEXPECTED = -7,

     REQUEST_BUSY = -8,

     RESULT_NOT_READY = -9,

     NOT_ALLOCATED = -10,

     INFER_NOT_STARTED = -11,

     NETWORK_NOT_READ = -12

 };

 


 /**


  * @struct ResponseDesc


  * @brief  Represents detailed information for an error


  */


 struct ResponseDesc {


     /**


      * @brief A character buffer that holds the detailed information for an error.


      */


     char msg[256] = {};

 };

 


 /** @brief This class represents StatusCode::GENERIC_ERROR exception */


 class GeneralError : public std::logic_error

 { using std::logic_error::logic_error; };

 


 /** @brief This class represents StatusCode::NOT_IMPLEMENTED exception */


 class NotImplemented : public std::logic_error

 { using std::logic_error::logic_error; };

 


 /** @brief This class represents StatusCode::NETWORK_NOT_LOADED exception */


 class NetworkNotLoaded : public std::logic_error

 { using std::logic_error::logic_error; };

 


 /** @brief This class represents StatusCode::PARAMETER_MISMATCH exception */


 class ParameterMismatch : public std::logic_error

 { using std::logic_error::logic_error; };

 


 /** @brief This class represents StatusCode::NOT_FOUND exception */


 class NotFound : public std::logic_error

 { using std::logic_error::logic_error; };

 


 /** @brief This class represents StatusCode::OUT_OF_BOUNDS exception */


 class OutOfBounds : public std::logic_error

 { using std::logic_error::logic_error; };

 


 /** @brief This class represents StatusCode::UNEXPECTED exception */


 class Unexpected : public std::logic_error

 { using std::logic_error::logic_error; };

 


 /** @brief This class represents StatusCode::REQUEST_BUSY exception */


 class RequestBusy : public std::logic_error

 { using std::logic_error::logic_error; };

 


 /** @brief This class represents StatusCode::RESULT_NOT_READY exception */


 class ResultNotReady : public std::logic_error

 { using std::logic_error::logic_error; };

 


 /** @brief This class represents StatusCode::NOT_ALLOCATED exception */


 class NotAllocated : public std::logic_error

 { using std::logic_error::logic_error; };

 


 /** @brief This class represents StatusCode::INFER_NOT_STARTED exception */


 class InferNotStarted : public std::logic_error

 { using std::logic_error::logic_error; };

 }  // namespace InferenceEngine


 


 /** @brief This class represents StatusCode::NETWORK_NOT_READ exception */


 class NetworkNotRead : public std::logic_error

 { using std::logic_error::logic_error; };

 

 #if defined(_WIN32)


     #define __PRETTY_FUNCTION__ __FUNCSIG__


 #else


     #define __PRETTY_FUNCTION__ __PRETTY_FUNCTION__


 #endif