Adding upstream version 2.14.2.upstream/2.14.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 68 insertions, 0 deletions

diff --git a/lib/base/library.cpp b/lib/base/library.cpp
new file mode 100644
index 0000000..541ed74
--- /dev/null
+++ b/lib/base/library.cpp
@@ -0,0 +1,68 @@
+/* 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 */
+}