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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*
*/
#include "qpid/sys/Shlib.h"
#include "qpid/Exception.h"
#include "qpid/Msg.h"
#include <dlfcn.h>
namespace qpid {
namespace sys {
void Shlib::load(const char* name) {
::dlerror();
handle = ::dlopen(name, RTLD_NOW);
const char* error = ::dlerror();
if (error) {
throw Exception(QPID_MSG(error << ": " << name));
}
}
void Shlib::unload() {
if (handle) {
::dlerror();
::dlclose(handle);
const char* error = ::dlerror();
if (error) {
throw Exception(QPID_MSG(error));
}
handle = 0;
}
}
void* Shlib::getSymbol(const char* name) {
::dlerror();
void* sym = ::dlsym(handle, name);
const char* error = ::dlerror();
if (error)
throw Exception(QPID_MSG(error << ": " << name));
return sym;
}
}} // namespace qpid::sys
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