| // 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. |
| |
| #pragma once |
| |
| #include "arrow/filesystem/filesystem.h" |
| |
| namespace arrow::fs { |
| extern "C" { |
| |
| // ARROW_FORCE_EXPORT ensures this function's visibility is |
| // _declspec(dllexport)/[[gnu::visibility("default")]] even when |
| // this header is #included by a non-arrow source, as in a third |
| // party filesystem implementation. |
| ARROW_FORCE_EXPORT void* arrow_filesystem_get_registry() { |
| // In the case where libarrow is linked statically both to the executable and to a |
| // dynamically loaded filesystem implementation library, the library contains a |
| // duplicate definition of the registry into which the library's instances of |
| // FileSystemRegistrar insert their factories. This function is made accessible to |
| // dlsym/GetProcAddress to enable detection of such duplicate registries and merging |
| // into the registry accessible to the executable. |
| return internal::GetFileSystemRegistry(); |
| } |
| } |
| } // namespace arrow::fs |
