| /* |
| * 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 <log4cxx/helpers/objectptr.h> |
| #include <log4cxx/helpers/exception.h> |
| #include <apr_atomic.h> |
| |
| using namespace log4cxx::helpers; |
| |
| ObjectPtrBase::ObjectPtrBase() |
| { |
| } |
| |
| ObjectPtrBase::~ObjectPtrBase() |
| { |
| } |
| |
| void ObjectPtrBase::checkNull(const int& null) |
| { |
| if (null != 0) |
| { |
| throw IllegalArgumentException(LOG4CXX_STR("Attempt to set pointer to a non-zero numeric value.")); |
| } |
| } |
| |
| void* ObjectPtrBase::exchange(void** destination, void* newValue) |
| { |
| #if _WIN32 && (!defined(_MSC_VER) || _MSC_VER >= 1300) |
| return InterlockedExchangePointer(destination, newValue); |
| #elif APR_SIZEOF_VOIDP == 4 |
| return (void*) apr_atomic_xchg32((volatile apr_uint32_t*) destination, |
| (apr_uint32_t) newValue); |
| #else |
| void* oldValue = *destination; |
| *destination = newValue; |
| return oldValue; |
| #endif |
| } |