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RocksDB for Erlang

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rocksdb deps rocksdb monitoring thread_status_util_debug.cc
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deps/rocksdb/monitoring/thread_status_util_debug.cc 

// Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.

//  This source code is licensed under both the GPLv2 (found in the

//  COPYING file in the root directory) and Apache 2.0 License

//  (found in the LICENSE.Apache file in the root directory).



#include <atomic>



#include "monitoring/thread_status_updater.h"

#include "monitoring/thread_status_util.h"

#include "rocksdb/system_clock.h"



namespace ROCKSDB_NAMESPACE {



#ifndef NDEBUG

// the delay for debugging purpose.

static std::atomic<int> states_delay[ThreadStatus::NUM_STATE_TYPES];



void ThreadStatusUtil::TEST_SetStateDelay(const ThreadStatus::StateType state,

                                          int micro) {

  states_delay[state].store(micro, std::memory_order_relaxed);

}



void ThreadStatusUtil::TEST_StateDelay(const ThreadStatus::StateType state) {

  auto delay = states_delay[state].load(std::memory_order_relaxed);

  if (delay > 0) {

    SystemClock::Default()->SleepForMicroseconds(delay);

  }

}



Env::IOActivity ThreadStatusUtil::TEST_GetExpectedIOActivity(

    ThreadStatus::OperationType thread_op) {

  switch (thread_op) {

    case ThreadStatus::OperationType::OP_FLUSH:

      return Env::IOActivity::kFlush;

    case ThreadStatus::OperationType::OP_COMPACTION:

      return Env::IOActivity::kCompaction;

    case ThreadStatus::OperationType::OP_DBOPEN:

      return Env::IOActivity::kDBOpen;

    case ThreadStatus::OperationType::OP_GET:

      return Env::IOActivity::kGet;

    case ThreadStatus::OperationType::OP_MULTIGET:

      return Env::IOActivity::kMultiGet;

    case ThreadStatus::OperationType::OP_DBITERATOR:

      return Env::IOActivity::kDBIterator;

    case ThreadStatus::OperationType::OP_VERIFY_DB_CHECKSUM:

      return Env::IOActivity::kVerifyDBChecksum;

    case ThreadStatus::OperationType::OP_VERIFY_FILE_CHECKSUMS:

      return Env::IOActivity::kVerifyFileChecksums;

    case ThreadStatus::OperationType::OP_GETENTITY:

      return Env::IOActivity::kGetEntity;

    case ThreadStatus::OperationType::OP_MULTIGETENTITY:

      return Env::IOActivity::kMultiGetEntity;

    case ThreadStatus::OperationType::

        OP_GET_FILE_CHECKSUMS_FROM_CURRENT_MANIFEST:

      return Env::IOActivity::kGetFileChecksumsFromCurrentManifest;

    default:

      return Env::IOActivity::kUnknown;

  }

}



#endif  // !NDEBUG



}  // namespace ROCKSDB_NAMESPACE