| #ifndef QPID_SYS_ATOMICVALUE_H |
| #define QPID_SYS_ATOMICVALUE_H |
| |
| /* |
| * |
| * 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. |
| * |
| */ |
| |
| // Have to check for clang before gcc as clang pretends to be gcc too |
| #if defined( __clang__ ) |
| // Use the clang doesn't support atomic builtins for 64 bit values, so use the slow versions |
| #include "qpid/sys/AtomicValue_mutex.h" |
| |
| #elif defined( __GNUC__ ) && __GNUC__ >= 4 && ( defined( __i686__ ) || defined( __x86_64__ ) ) |
| // Use the Gnu C built-in atomic operations if compiling with gcc on a suitable platform. |
| #include "qpid/sys/AtomicValue_gcc.h" |
| |
| #else |
| // Fall-back to mutex locked operations if we don't have atomic ops. |
| #include "qpid/sys/AtomicValue_mutex.h" |
| #endif |
| |
| #endif /*!QPID_SYS_ATOMICVALUE_GCC_H*/ |