6f9d8260f0
Summary: Adding ability to kill mysql queries traversing long lists of tombstones. Outside of mysql where RocksDbThreadYieldAndCheckAbort is not implemented all of this should still be optimized out by the compiler. Pull Request resolved: https://github.com/facebook/rocksdb/pull/13164 Reviewed By: cbi42 Differential Revision: D66556004 Pulled By: george-reynya fbshipit-source-id: 727875569209cd6d2f29c07f89ecfa641d5ee36f
33 lines
1.3 KiB
C++
33 lines
1.3 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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#pragma once
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#include <string>
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// Include the appropriate platform specific file below. If you are
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// porting to a new platform, see "port_example.h" for documentation
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// of what the new port_<platform>.h file must provide.
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#if defined(ROCKSDB_PLATFORM_POSIX)
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#include "port/port_posix.h"
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#elif defined(OS_WIN)
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#include "port/win/port_win.h"
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#endif
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#ifdef OS_LINUX
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// A temporary hook into long-running RocksDB threads to support modifying their
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// priority etc. This should become a public API hook once the requirements
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// are better understood.
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// Returns true if query is aborted.
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extern "C" bool RocksDbThreadYieldAndCheckAbort() __attribute__((__weak__));
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#define ROCKSDB_THREAD_YIELD_CHECK_ABORT() \
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(RocksDbThreadYieldAndCheckAbort ? RocksDbThreadYieldAndCheckAbort() : false)
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#else
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#define ROCKSDB_THREAD_YIELD_CHECK_ABORT() (false)
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#endif
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