plugin.hh

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// Copyright (c) 2019, Joseph Mirabel
// Authors: Joseph Mirabel (joseph.mirabel@laas.fr)
//
 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
// DAMAGE.
 
#ifndef HPP_CORE_PLUGIN_HH
#define HPP_CORE_PLUGIN_HH
 
#include <hpp/core/config.hh>
#include <hpp/core/fwd.hh>
#include <string>
 
namespace hpp {
namespace core {

class ProblemSolverPlugin {
 public:
  const std::string& name() const { return name_; }
 
  const std::string& version() const { return version_; }
 
  bool initialize(ProblemSolverPtr_t ps) {
    if (initialized_) return true;
    initialized_ = impl_initialize(ps);
    return initialized_;
  }
 
  virtual ~ProblemSolverPlugin() {}
 
 protected:
  virtual bool impl_initialize(ProblemSolverPtr_t ps) = 0;
 
  ProblemSolverPlugin(const std::string& name, const std::string& version)
      : name_(name), version_(version), initialized_(false) {}
 
 private:
  std::string name_, version_;
  bool initialized_;
};  // class ProblemSolver

#define HPP_CORE_DEFINE_PLUGIN(PluginClassName)                   \
  extern "C" {                                                    \
  ::hpp::core::ProblemSolverPlugin* createProblemSolverPlugin() { \
    return new PluginClassName();                                 \
  }                                                               \
  }
 
namespace plugin {
std::string findPluginLibrary(const std::string& name);

bool loadPlugin(const std::string& lib, ProblemSolverPtr_t ps);
}  // namespace plugin

 
}  // namespace core
}  // namespace hpp
 
#endif  // HPP_CORE_PLUGIN_HH