7f6c02dda1
Summary: … headers https://github.com/facebook/rocksdb/pull/2199 should not reference RocksDB-specific macros (like ROCKSDB_SUPPORT_THREAD_LOCAL in this case) to public headers, `iostats_context.h` and `perf_context.h`. We shouldn't do that because users have to provide these compiler flags when building their binary with RocksDB. We should hide the thread local global variable inside our implementation and just expose a function api to retrieve these variables. It may break some users for now but good for long term. make check -j64 Closes https://github.com/facebook/rocksdb/pull/2380 Differential Revision: D5177896 Pulled By: lightmark fbshipit-source-id: 6fcdfac57f2e2dcfe60992b7385c5403f6dcb390
57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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// This source code is also licensed under the GPLv2 license found in the
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// COPYING file in the root directory of this source tree.
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//
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#pragma once
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#include "monitoring/perf_step_timer.h"
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#include "rocksdb/iostats_context.h"
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#ifdef ROCKSDB_SUPPORT_THREAD_LOCAL
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// increment a specific counter by the specified value
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#define IOSTATS_ADD(metric, value) \
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(get_iostats_context()->metric += value)
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// Increase metric value only when it is positive
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#define IOSTATS_ADD_IF_POSITIVE(metric, value) \
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if (value > 0) { IOSTATS_ADD(metric, value); }
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// reset a specific counter to zero
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#define IOSTATS_RESET(metric) \
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(get_iostats_context()->metric = 0)
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// reset all counters to zero
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#define IOSTATS_RESET_ALL() \
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(get_iostats_context()->Reset())
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#define IOSTATS_SET_THREAD_POOL_ID(value) \
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(get_iostats_context()->thread_pool_id = value)
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#define IOSTATS_THREAD_POOL_ID() \
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(get_iostats_context()->thread_pool_id)
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#define IOSTATS(metric) \
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(get_iostats_context()->metric)
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// Declare and set start time of the timer
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#define IOSTATS_TIMER_GUARD(metric) \
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PerfStepTimer iostats_step_timer_##metric(&(get_iostats_context()->metric)); \
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iostats_step_timer_##metric.Start();
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#else // ROCKSDB_SUPPORT_THREAD_LOCAL
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#define IOSTATS_ADD(metric, value)
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#define IOSTATS_ADD_IF_POSITIVE(metric, value)
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#define IOSTATS_RESET(metric)
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#define IOSTATS_RESET_ALL()
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#define IOSTATS_SET_THREAD_POOL_ID(value)
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#define IOSTATS_THREAD_POOL_ID()
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#define IOSTATS(metric) 0
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#define IOSTATS_TIMER_GUARD(metric)
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#endif // ROCKSDB_SUPPORT_THREAD_LOCAL
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