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rocksdb/util/iostats_context_imp.h

63 lines
2.0 KiB

// Copyright (c) 2014, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
//
#pragma once
#include "rocksdb/iostats_context.h"
#include "util/perf_step_timer.h"
#ifndef IOS_CROSS_COMPILE
// increment a specific counter by the specified value
#define IOSTATS_ADD(metric, value) \
(iostats_context.metric += value)
// Increase metric value only when it is positive
#define IOSTATS_ADD_IF_POSITIVE(metric, value) \
if (value > 0) { IOSTATS_ADD(metric, value); }
// reset a specific counter to zero
#define IOSTATS_RESET(metric) \
(iostats_context.metric = 0)
// reset all counters to zero
#define IOSTATS_RESET_ALL() \
(iostats_context.Reset())
#define IOSTATS_SET_THREAD_POOL_ID(value) \
(iostats_context.thread_pool_id = value)
#define IOSTATS_THREAD_POOL_ID() \
(iostats_context.thread_pool_id)
#define IOSTATS(metric) \
(iostats_context.metric)
// Stop the timer and update the metric
#define IOSTATS_TIMER_STOP(metric) \
iostats_step_timer_ ## metric.Stop();
#define IOSTATS_TIMER_START(metric) \
iostats_step_timer_ ## metric.Start();
// Declare and set start time of the timer
#define IOSTATS_TIMER_GUARD(metric) \
PerfStepTimer iostats_step_timer_ ## metric(&(iostats_context.metric)); \
iostats_step_timer_ ## metric.Start();
#else // IOS_CROSS_COMPILE
#define IOSTATS_ADD(metric, value)
#define IOSTATS_ADD_IF_POSITIVE(metric, value)
#define IOSTATS_RESET(metric)
#define IOSTATS_RESET_ALL()
#define IOSTATS_SET_THREAD_POOL_ID(value)
#define IOSTATS_THREAD_POOL_ID()
#define IOSTATS(metric) 0
#define IOSTATS_TIMER_GUARD(metric)
#define IOSTATS_TIMER_STOP(metric)
#define IOSTATS_TIMER_START(metric)
#endif // IOS_CROSS_COMPILE