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/*
*
* Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Rev$ $Date: 2005/12/22 11:33:21 $ */
#include "tuscany/sca/util/Library.h"
#include "tuscany/sca/util/Utils.h"
#include "tuscany/sca/util/Exceptions.h"
#include "tuscany/sca/util/Logging.h"
using namespace osoa::sca;
namespace tuscany
{
namespace sca
{
Library::Library()
: hDLL(NULL)
{
}
Library::Library(const string& libraryName)
: name(libraryName), hDLL(NULL)
{
LOGINFO_1(3, "Library::construcor : %s", name.c_str());
load();
}
Library::Library(const Library& lib)
: name(lib.name), hDLL(NULL)
{
LOGINFO_1(3, "Library::copy constructor : %s", name.c_str());
if (lib.hDLL)
{
load();
}
}
Library& Library::operator=(const Library& lib)
{
LOGINFO_1(3, "Library::operator= : %s", name.c_str());
if (&lib != this)
{
unload();
name = lib.name;
load();
}
return *this;
}
Library::~Library()
{
LOGINFO_1(3, "Library::destructor: %s", name.c_str());
unload();
}
void Library::load()
{
LOGINFO_1(3, "Library::load : %s", name.c_str());
string msg;
#if defined(WIN32) || defined (_WINDOWS)
hDLL = LoadLibrary(name.c_str());
#else
hDLL = dlopen(name.c_str(), RTLD_NOW);
#endif
if (hDLL == NULL)
{
LOGERROR_1(1, "Library::load: Unable to load library %s", name.c_str());
msg = "Unable to load dll: " + name;
throw ServiceRuntimeException(msg.c_str());
}
}
void Library::unload()
{
if (hDLL != NULL)
{
LOGINFO_1(3, "Library::unload : %s", name.c_str());
#if defined(WIN32) || defined (_WINDOWS)
FreeLibrary(hDLL);
#else
dlclose(hDLL);
#endif
hDLL = NULL;
}
}
void* Library::getSymbol(const string& symbol)
{
LOGINFO_1(3, "Library::getSymbol : %s", symbol.c_str());
if (!hDLL)
{
return 0;
}
#if defined(WIN32) || defined (_WINDOWS)
return GetProcAddress(hDLL, symbol.c_str());
#else
return dlsym(hDLL, symbol.c_str());
#endif
}
} // End namespace sca
} // End namespace tuscany
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