40 lines
1.7 KiB
C
40 lines
1.7 KiB
C
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// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#pragma once
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#include "arrow/filesystem/filesystem.h"
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namespace arrow::fs {
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extern "C" {
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// ARROW_FORCE_EXPORT ensures this function's visibility is
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// _declspec(dllexport)/[[gnu::visibility("default")]] even when
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// this header is #included by a non-arrow source, as in a third
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// party filesystem implementation.
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ARROW_FORCE_EXPORT void* arrow_filesystem_get_registry() {
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// In the case where libarrow is linked statically both to the executable and to a
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// dynamically loaded filesystem implementation library, the library contains a
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// duplicate definition of the registry into which the library's instances of
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// FileSystemRegistrar insert their factories. This function is made accessible to
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// dlsym/GetProcAddress to enable detection of such duplicate registries and merging
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// into the registry accessible to the executable.
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return internal::GetFileSystemRegistry();
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}
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}
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} // namespace arrow::fs
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