mirror of https://github.com/facebook/rocksdb.git
42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#include <mutex>
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#include <rocksdb/env.h>
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#include "port/win/env_win.h"
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#include "test_util/sync_point.h"
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#include "util/compression_context_cache.h"
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#include "util/thread_local.h"
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namespace rocksdb {
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namespace port {
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// We choose not to destroy the env because joining the threads from the
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// system loader
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// which destroys the statics (same as from DLLMain) creates a system loader
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// dead-lock.
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// in this manner any remaining threads are terminated OK.
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namespace {
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std::once_flag winenv_once_flag;
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Env* envptr;
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};
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}
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Env* Env::Default() {
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using namespace port;
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ThreadLocalPtr::InitSingletons();
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CompressionContextCache::InitSingleton();
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INIT_SYNC_POINT_SINGLETONS();
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std::call_once(winenv_once_flag, []() { envptr = new WinEnv(); });
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return envptr;
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}
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}
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