dynlib.h

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/*
 * Copyright (c) 2010, Willow Garage, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of the Willow Garage, Inc. nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 *
 * 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 OWNER 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 RVE_DYNLIB_DYNLIB_H
#define RVE_DYNLIB_DYNLIB_H

#if defined(unix) || defined(__unix__) || defined(__unix)
#include "handle_posix.h"
#elif defined(WIN32)
#error("Windows not supported yet")
#else
#error("Unsupported platform")
#endif

#include <stdexcept>

namespace rve_dynlib
{

class LibraryLoadException : public std::runtime_error
{
public:
  LibraryLoadException(const std::string& lib_name, const std::string& error)
  : std::runtime_error("Failed to load library [" + lib_name + "]: " + error)
  {}
};

class LibraryUnloadException : public std::runtime_error
{
public:
  LibraryUnloadException(const std::string& error)
  : std::runtime_error("Failed to unload library : " + error)
  {}
};

Handle load(const char* path);
inline Handle load(const std::string& path)
{
  return load(path.c_str());
}

void unload(Handle& h);


bool hasSymbol(Handle h, const char* symbol);
inline bool hasSymbol(Handle h, const std::string& symbol)
{
  return hasSymbol(h, symbol.c_str());
}

void* getSymbol(Handle h, const char* symbol);
inline void* getSymbol(Handle h, const std::string& symbol)
{
  return getSymbol(h, symbol.c_str());
}

const char* prefix();
const char* suffix();

}

#endif // RVE_DYNLIB_DYNLIB_H