RuntimeLibrary.hh

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#ifndef RuntimeLibrary_HH
#define RuntimeLibrary_HH

#include <iostream>
#include <fstream>
#include <string>
#include <functional>
#include <dlfcn.h>
#include <cstdlib>
#include "casm/system/Popen.hh"
#include "casm/CASM_global_definitions.hh"
#include "casm/casm_io/Log.hh"

namespace CASM {

  class RuntimeLibrary : public Logging {

  public:

    RuntimeLibrary(
      std::string _filename_base,
      std::string _compile_options,
      std::string _so_options,
      std::string compile_msg,
      const Logging &logging = Logging());

    ~RuntimeLibrary();

    template<typename Signature>
    std::function<Signature> get_function(std::string function_name) const {

      std::function<Signature> func = reinterpret_cast<Signature *>(dlsym(m_handle, function_name.c_str()));

      const char *dlsym_error = dlerror();
      if(dlsym_error) {
        throw std::runtime_error(std::string("Cannot load symbol " + function_name + " \n" + dlsym_error));
      }

      return func;
    }

    void rm();

    static std::pair<std::string, std::string> default_cxxflags();

    static std::pair<std::string, std::string> default_soflags();

    static std::pair<std::string, std::string> default_cxx();

    static std::pair<fs::path, std::string> default_casm_includedir();

    static std::pair<fs::path, std::string> default_casm_libdir();

    static std::pair<fs::path, std::string> default_boost_includedir();

    static std::pair<fs::path, std::string> default_boost_libdir();


  private:

    void _compile();

    void _load();

    void _close();


    std::string m_filename_base;
    std::string m_compile_options;
    std::string m_so_options;

    void *m_handle;

  };

  std::string include_path(const fs::path &dir);

  std::string link_path(const fs::path &dir);


}

#endif