adding DynamicLibrary

1 files changed, 90 insertions, 0 deletions

diff --git a/cpp/src/Ice/DynamicLibrary.cpp b/cpp/src/Ice/DynamicLibrary.cpp
new file mode 100644
index 00000000000..d62154f43ec
--- /dev/null
+++ b/cpp/src/Ice/DynamicLibrary.cpp
@@ -0,0 +1,90 @@
+// **********************************************************************
+//
+// Copyright (c) 2002
+// MutableRealms, Inc.
+// Huntsville, AL, USA
+//
+// All Rights Reserved
+//
+// **********************************************************************
+
+#include <Ice/DynamicLibrary.h>
+
+#ifndef WIN32
+#   include <dlfcn.h>
+#endif
+
+using namespace Ice;
+using namespace IceInternal;
+using namespace std;
+
+void IceInternal::incRef(DynamicLibrary* p) { p->__incRef(); }
+void IceInternal::decRef(DynamicLibrary* p) { p->__decRef(); }
+
+IceInternal::DynamicLibrary::DynamicLibrary()
+    : _hnd(0)
+{
+}
+
+IceInternal::DynamicLibrary::~DynamicLibrary()
+{
+    if(_hnd != 0)
+    {
+#ifdef WIN32
+        FreeLibrary(_hnd);
+#else
+        dlclose(_hnd);
+#endif
+    }
+}
+
+bool
+IceInternal::DynamicLibrary::load(const string& lib)
+{
+#ifdef WIN32
+    _hnd = LoadLibrary(lib.c_str());
+#else
+    _hnd = dlopen(lib.c_str(), RTLD_NOW);
+    if (_hnd == 0)
+    {
+        //
+        // Remember the most recent error in _err.
+        //
+        const char* err = dlerror();
+        if (err)
+        {
+            _err = err;
+        }
+    }
+#endif
+    return _hnd != 0;
+}
+
+IceInternal::DynamicLibrary::symbol_type
+IceInternal::DynamicLibrary::getSymbol(const string& name)
+{
+    assert(_hnd != 0);
+#ifdef WIN32
+    return GetProcAddress(_hnd, name.c_str());
+#else
+    symbol_type result = dlsym(_hnd, name.c_str());
+    if (result == 0)
+    {
+        //
+        // Remember the most recent error in _err.
+        //
+        const char* err = dlerror();
+        if (err)
+        {
+            _err = err;
+        }
+    }
+    return result;
+#endif
+}
+
+const string&
+IceInternal::DynamicLibrary::getErrorMessage() const
+{
+    return _err;
+}