dlloader::DLLoader< T > Class Template Reference

#include <ComputeMgr.h>

Inheritance diagram for dlloader::DLLoader< T >:

Public Member Functions
	DLLoader (std::string pathToLib, std::string allocClassSymbol="allocator", std::string deleteClassSymbol="deleter")
	~DLLoader ()=default
void	DLOpenLib () override
void	DLCloseLib () override
std::shared_ptr< T >	DLGetInstance () override
std::string	LibName () const override
Public Member Functions inherited from dlloader::DLLoaderInterface< T >
virtual	~DLLoaderInterface ()=default

Detailed Description

template<typename T>
class dlloader::DLLoader< T >

Definition at line 63 of file ComputeMgr.h.

Constructor & Destructor Documentation

DLLoader()

template<typename T >

dlloader::DLLoader< T >::DLLoader ( std::string  pathToLib, std::string  allocClassSymbol = "allocator", std::string  deleteClassSymbol = "deleter"  )

inline

Definition at line 85 of file dlloader.h.

                                              :
      mPathToLib(std::move(pathToLib)),
      mAllocClassSymbol(std::move(allocClassSymbol)),
      mDeleteClassSymbol(std::move(deleteClassSymbol)) {}

~DLLoader()

template<typename T >

dlloader::DLLoader< T >::~DLLoader ( )

default

Member Function Documentation

DLCloseLib()

template<typename T >

void dlloader::DLLoader< T >::DLCloseLib ( )

inlineoverridevirtual

Implements dlloader::DLLoaderInterface< T >.

Definition at line 98 of file dlloader.h.

Referenced by dlloader::DLLoader< T >::DLGetInstance().

                               {
      if (dlclose(mHandle) != 0) {
        throw std::runtime_error(std::string{dlerror()});
      }
    }

DLGetInstance()

template<typename T >

std::shared_ptr<T> dlloader::DLLoader< T >::DLGetInstance ( )

inlineoverridevirtual

Implements dlloader::DLLoaderInterface< T >.

Definition at line 103 of file dlloader.h.

References dlloader::DLLoader< T >::DLCloseLib().

                                              {
      using allocClass = T *(*)();
      using deleteClass = void (*)(T *);
      auto allocFunc = reinterpret_cast<allocClass>(dlsym(mHandle, mAllocClassSymbol.c_str()));
      auto deleteFunc = reinterpret_cast<deleteClass>(dlsym(mHandle, mDeleteClassSymbol.c_str()));
      if (!allocFunc || !deleteFunc) {
        try {
          DLCloseLib();
          throw std::runtime_error(std::string{dlerror()});
        } catch (...) {
          throw;
        }
        throw std::runtime_error(std::string{dlerror()});
      }
      return std::shared_ptr<T>(allocFunc(), [deleteFunc](T* p){deleteFunc(p);});
    }

DLOpenLib()

template<typename T >

void dlloader::DLLoader< T >::DLOpenLib ( )

inlineoverridevirtual

Implements dlloader::DLLoaderInterface< T >.

Definition at line 93 of file dlloader.h.

                              {
      if (!(mHandle = dlopen(mPathToLib.c_str(), RTLD_NOW|RTLD_LAZY|RTLD_DEEPBIND))) {
        throw std::runtime_error(std::string{dlerror()});
      }
    }

LibName()

template<typename T >

std::string dlloader::DLLoader< T >::LibName ( ) const

inlineoverridevirtual

Implements dlloader::DLLoaderInterface< T >.

Definition at line 119 of file dlloader.h.

                                       {
      return mPathToLib;
    }

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The documentation for this class was generated from the following files:

• ComputeMgr.h
• dlloader.h