SharedLibraryPlatform.cpp

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/*<!-------------------------------------------------------------------->
   @file   SharedLibraryPlatform.cpp
   @author Travis Fischer (fisch0920@gmail.com)
   @date   Summer 2008
   
   @brief
      Platform-independent interface for low-level operations on shared, 
   libraries, including platform-dependent implementations for POSIX-compliant 
   systems and Windows systems.
   <!-------------------------------------------------------------------->**/

#include "SharedLibraryPlatform.h"
#include <dlfcn.h>

SharedLibraryHandle *SharedLibraryPlatformPosix::load(const std::string &name, 
                                                      int openFlags)
{
   if (openFlags == 0)
      openFlags = RTLD_LAZY;
   
   return dlopen(name.c_str(), openFlags);
}

bool SharedLibraryPlatformPosix::unload(SharedLibraryHandle *handle) {
   ASSERT(handle != NULL);
   int ret = dlclose(handle);
   
   if (0 == ret) // success
      return true;
   
   return false;
}

void *SharedLibraryPlatformPosix::getSymbol(SharedLibraryHandle *handle, 
                                            const std::string &symbol)
{
   ASSERT(handle != NULL);
   
   return dlsym(handle, symbol.c_str());
}

std::string SharedLibraryPlatformPosix::getLastError() {
   char *error = dlerror();
   
   if (error)
      return std::string(error);
   
   return std::string("");
}