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4e60663b31
Summary: In C++, `extern` is redundant in a number of cases: * "Global" function declarations and definitions * "Global" variable definitions when already declared `extern` For consistency and simplicity, I've removed these in code that *we own*. In a couple of cases, I removed obsolete declarations, and for MagicNumber constants, I have consolidated the declarations into a header file (format.h) as standard best practice would prescribe. Pull Request resolved: https://github.com/facebook/rocksdb/pull/12300 Test Plan: no functional changes, CI Reviewed By: ajkr Differential Revision: D53148629 Pulled By: pdillinger fbshipit-source-id: fb8d927959892e03af09b0c0d542b0a3b38fd886
48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
// Copyright (c) Facebook, Inc. and its affiliates. 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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#pragma once
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#include <array>
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#include "db/internal_stats.h"
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#include "rocksdb/types.h"
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namespace ROCKSDB_NAMESPACE {
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const std::string& InvalidWriteStallHyphenString();
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const std::string& WriteStallCauseToHyphenString(WriteStallCause cause);
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const std::string& WriteStallConditionToHyphenString(
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WriteStallCondition condition);
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// REQUIRES:
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// cause` is CF-scope `WriteStallCause`, see `WriteStallCause` for more
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//
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// REQUIRES:
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// `condition` != `WriteStallCondition::kNormal`
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InternalStats::InternalCFStatsType InternalCFStat(
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WriteStallCause cause, WriteStallCondition condition);
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// REQUIRES:
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// cause` is DB-scope `WriteStallCause`, see `WriteStallCause` for more
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//
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// REQUIRES:
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// `condition` != `WriteStallCondition::kNormal`
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InternalStats::InternalDBStatsType InternalDBStat(
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WriteStallCause cause, WriteStallCondition condition);
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bool isCFScopeWriteStallCause(WriteStallCause cause);
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bool isDBScopeWriteStallCause(WriteStallCause cause);
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constexpr uint32_t kNumCFScopeWriteStallCauses =
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static_cast<uint32_t>(WriteStallCause::kCFScopeWriteStallCauseEnumMax) -
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static_cast<uint32_t>(WriteStallCause::kMemtableLimit);
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constexpr uint32_t kNumDBScopeWriteStallCauses =
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static_cast<uint32_t>(WriteStallCause::kDBScopeWriteStallCauseEnumMax) -
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static_cast<uint32_t>(WriteStallCause::kWriteBufferManagerLimit);
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} // namespace ROCKSDB_NAMESPACE
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