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/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
#include "base/library.hpp"
#include "base/loader.hpp"
#include "base/logger.hpp"
#include "base/exception.hpp"
#include "base/application.hpp"
using namespace icinga;
/**
* Loads the specified library.
*
* @param name The name of the library.
*/
Library::Library(const String& name)
{
String path;
#if defined(_WIN32)
path = name + ".dll";
#elif defined(__APPLE__)
path = "lib" + name + "." + Application::GetAppSpecVersion() + ".dylib";
#else /* __APPLE__ */
path = "lib" + name + ".so." + Application::GetAppSpecVersion();
#endif /* _WIN32 */
Log(LogNotice, "Library")
<< "Loading library '" << path << "'";
#ifdef _WIN32
HMODULE hModule = LoadLibrary(path.CStr());
if (!hModule) {
BOOST_THROW_EXCEPTION(win32_error()
<< boost::errinfo_api_function("LoadLibrary")
<< errinfo_win32_error(GetLastError())
<< boost::errinfo_file_name(path));
}
#else /* _WIN32 */
void *hModule = dlopen(path.CStr(), RTLD_NOW | RTLD_GLOBAL);
if (!hModule) {
BOOST_THROW_EXCEPTION(std::runtime_error("Could not load library '" + path + "': " + dlerror()));
}
#endif /* _WIN32 */
Loader::ExecuteDeferredInitializers();
m_Handle.reset(new LibraryHandle(hModule), [](LibraryHandle *handle) {
#ifdef _WIN32
FreeLibrary(*handle);
#else /* _WIN32 */
dlclose(*handle);
#endif /* _WIN32 */
});
}
void *Library::GetSymbolAddress(const String& name) const
{
if (!m_Handle)
BOOST_THROW_EXCEPTION(std::runtime_error("Invalid library handle"));
#ifdef _WIN32
return GetProcAddress(*m_Handle.get(), name.CStr());
#else /* _WIN32 */
return dlsym(*m_Handle.get(), name.CStr());
#endif /* _WIN32 */
}
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