hbase-native-client/src/core/hbase_macros.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.
 *
 */

#ifndef CORE_HBASE_MACROS_H_
#define CORE_HBASE_MACROS_H_

#ifdef __cplusplus
extern "C" {
#endif

/**
 * The following code block define API as the tag for exported
 * functions. The library should be compiled with symbols visibility
 * set to hidden by default and only the exported functions should be
 * tagged as HBASE_API.
 *
 * When building the library on Windows, compile with compiler flag
 * "-D_LIBHBASE_IMPLEMENTATION_", whereas when linking application with
 * this library, this compiler flag should not be used.
 */
#if defined _WIN32 || defined __CYGWIN__
  #ifdef _LIBHBASE_IMPLEMENTATION_
      #define API __declspec(dllexport)
  #else
    #ifdef _LIBHBASE_TEST_
      #define HBASE_API
    #else
      #define HBASE_API __declspec(dllimport)
    #endif
  #endif
#else
  #if __GNUC__ >= 4
    #define HBASE_API __attribute__ ((visibility ("default")))
  #else
    #define HBASE_API
  #endif
#endif

#ifdef __cplusplus
}  // extern "C"
#endif  // __cplusplus

#endif  // CORE_HBASE_MACROS_H_