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// **********************************************************************
//
// Copyright (c) 2002
// Mutable Realms, Inc.
// Huntsville, AL, USA
//
// All Rights Reserved
//
// **********************************************************************
#ifndef ICE_DYNAMIC_LIBRARY_H
#define ICE_DYNAMIC_LIBRARY_H
#include <Ice/DynamicLibraryF.h>
#include <IceUtil/Shared.h>
namespace IceInternal
{
class ICE_API DynamicLibrary : public ::IceUtil::Shared
{
public:
DynamicLibrary();
~DynamicLibrary();
#ifdef _WIN32
typedef FARPROC symbol_type;
#else
typedef void* symbol_type;
#endif
//
// Load an entry point. This is really a convenience function
// which combines calls to load() and getSymbol(). However,
// it does add some value.
//
// An entry point has the following format:
//
// name[,version]:function
//
// The name of the library is constructed from the given
// information. If no version is supplied, the Ice version
// is used. For example, consider the following entry point:
//
// foo:create
//
// This would result in libfoo.so.0.0.1 (Unix) and foo001.dll (Windows),
// where the Ice version is 0.0.1.
//
// Now consider this entry point:
//
// foo,1.1:create
//
// The library names in this case are libfoo.so.1.1 (Unix) and
// foo11.dll (Windows).
//
// On Windows platforms, a 'd' is appended to the version for debug
// builds.
//
// Returns 0 if a failure occurred.
//
symbol_type loadEntryPoint(const std::string&);
//
// Open a library with the given path.
//
bool load(const std::string&);
//
// Retrieve a symbol from the library. Returns 0 if no match is found.
//
symbol_type getSymbol(const std::string&);
//
// Get the error message for the last failure.
//
const std::string& getErrorMessage() const;
private:
#ifdef _WIN32
HINSTANCE _hnd;
#else
void* _hnd;
#endif
std::string _err;
};
}
#endif
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