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// 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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#include "util/thread_status_util.h"
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#include "rocksdb/env.h"
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#include "util/thread_status_updater.h"
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namespace rocksdb {
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#ifdef ROCKSDB_USING_THREAD_STATUS
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__thread ThreadStatusUpdater*
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ThreadStatusUtil::thread_updater_local_cache_ = nullptr;
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__thread bool ThreadStatusUtil::thread_updater_initialized_ = false;
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void ThreadStatusUtil::RegisterThread(
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const Env* env, ThreadStatus::ThreadType thread_type) {
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if (!MaybeInitThreadLocalUpdater(env)) {
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return;
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}
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assert(thread_updater_local_cache_);
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thread_updater_local_cache_->RegisterThread(
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thread_type, env->GetThreadID());
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}
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void ThreadStatusUtil::UnregisterThread() {
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thread_updater_initialized_ = false;
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if (thread_updater_local_cache_ != nullptr) {
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thread_updater_local_cache_->UnregisterThread();
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thread_updater_local_cache_ = nullptr;
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}
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}
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void ThreadStatusUtil::SetColumnFamily(const ColumnFamilyData* cfd,
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const Env* env,
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bool enable_thread_tracking) {
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if (!MaybeInitThreadLocalUpdater(env)) {
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return;
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}
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assert(thread_updater_local_cache_);
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if (cfd != nullptr && enable_thread_tracking) {
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thread_updater_local_cache_->SetColumnFamilyInfoKey(cfd);
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} else {
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// When cfd == nullptr or enable_thread_tracking == false, we set
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// ColumnFamilyInfoKey to nullptr, which makes SetThreadOperation
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// and SetThreadState become no-op.
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thread_updater_local_cache_->SetColumnFamilyInfoKey(nullptr);
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}
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}
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void ThreadStatusUtil::SetThreadOperation(ThreadStatus::OperationType op) {
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if (thread_updater_local_cache_ == nullptr) {
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// thread_updater_local_cache_ must be set in SetColumnFamily
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// or other ThreadStatusUtil functions.
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return;
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}
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if (op != ThreadStatus::OP_UNKNOWN) {
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uint64_t current_time = Env::Default()->NowMicros();
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thread_updater_local_cache_->SetOperationStartTime(current_time);
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} else {
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// TDOO(yhchiang): we could report the time when we set operation to
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// OP_UNKNOWN once the whole instrumentation has been done.
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thread_updater_local_cache_->SetOperationStartTime(0);
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}
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thread_updater_local_cache_->SetThreadOperation(op);
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}
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ThreadStatus::OperationStage ThreadStatusUtil::SetThreadOperationStage(
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ThreadStatus::OperationStage stage) {
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if (thread_updater_local_cache_ == nullptr) {
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// thread_updater_local_cache_ must be set in SetColumnFamily
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// or other ThreadStatusUtil functions.
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return ThreadStatus::STAGE_UNKNOWN;
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}
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return thread_updater_local_cache_->SetThreadOperationStage(stage);
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}
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void ThreadStatusUtil::SetThreadOperationProperty(
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int code, uint64_t value) {
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if (thread_updater_local_cache_ == nullptr) {
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// thread_updater_local_cache_ must be set in SetColumnFamily
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// or other ThreadStatusUtil functions.
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return;
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}
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thread_updater_local_cache_->SetThreadOperationProperty(
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code, value);
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}
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void ThreadStatusUtil::IncreaseThreadOperationProperty(
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int code, uint64_t delta) {
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if (thread_updater_local_cache_ == nullptr) {
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// thread_updater_local_cache_ must be set in SetColumnFamily
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// or other ThreadStatusUtil functions.
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return;
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}
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thread_updater_local_cache_->IncreaseThreadOperationProperty(
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code, delta);
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}
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void ThreadStatusUtil::SetThreadState(ThreadStatus::StateType state) {
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if (thread_updater_local_cache_ == nullptr) {
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// thread_updater_local_cache_ must be set in SetColumnFamily
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// or other ThreadStatusUtil functions.
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return;
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}
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thread_updater_local_cache_->SetThreadState(state);
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}
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void ThreadStatusUtil::ResetThreadStatus() {
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if (thread_updater_local_cache_ == nullptr) {
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return;
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}
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thread_updater_local_cache_->ResetThreadStatus();
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}
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void ThreadStatusUtil::NewColumnFamilyInfo(const DB* db,
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const ColumnFamilyData* cfd,
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const std::string& cf_name,
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const Env* env) {
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if (!MaybeInitThreadLocalUpdater(env)) {
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return;
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}
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assert(thread_updater_local_cache_);
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if (thread_updater_local_cache_) {
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thread_updater_local_cache_->NewColumnFamilyInfo(db, db->GetName(), cfd,
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cf_name);
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}
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}
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void ThreadStatusUtil::EraseColumnFamilyInfo(
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const ColumnFamilyData* cfd) {
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if (thread_updater_local_cache_ == nullptr) {
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return;
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}
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thread_updater_local_cache_->EraseColumnFamilyInfo(cfd);
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}
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void ThreadStatusUtil::EraseDatabaseInfo(const DB* db) {
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ThreadStatusUpdater* thread_updater = db->GetEnv()->GetThreadStatusUpdater();
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if (thread_updater == nullptr) {
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return;
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}
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thread_updater->EraseDatabaseInfo(db);
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}
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bool ThreadStatusUtil::MaybeInitThreadLocalUpdater(const Env* env) {
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if (!thread_updater_initialized_ && env != nullptr) {
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thread_updater_initialized_ = true;
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thread_updater_local_cache_ = env->GetThreadStatusUpdater();
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}
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return (thread_updater_local_cache_ != nullptr);
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}
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AutoThreadOperationStageUpdater::AutoThreadOperationStageUpdater(
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ThreadStatus::OperationStage stage) {
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prev_stage_ = ThreadStatusUtil::SetThreadOperationStage(stage);
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}
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AutoThreadOperationStageUpdater::~AutoThreadOperationStageUpdater() {
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ThreadStatusUtil::SetThreadOperationStage(prev_stage_);
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}
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#else
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ThreadStatusUpdater* ThreadStatusUtil::thread_updater_local_cache_ = nullptr;
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bool ThreadStatusUtil::thread_updater_initialized_ = false;
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bool ThreadStatusUtil::MaybeInitThreadLocalUpdater(const Env* env) {
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return false;
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}
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void ThreadStatusUtil::SetColumnFamily(const ColumnFamilyData* cfd,
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const Env* env,
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bool enable_thread_tracking) {}
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void ThreadStatusUtil::SetThreadOperation(ThreadStatus::OperationType op) {
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}
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void ThreadStatusUtil::SetThreadOperationProperty(
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int code, uint64_t value) {
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}
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void ThreadStatusUtil::IncreaseThreadOperationProperty(
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int code, uint64_t delta) {
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}
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void ThreadStatusUtil::SetThreadState(ThreadStatus::StateType state) {
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}
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void ThreadStatusUtil::NewColumnFamilyInfo(const DB* db,
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const ColumnFamilyData* cfd,
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const std::string& cf_name,
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const Env* env) {}
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void ThreadStatusUtil::EraseColumnFamilyInfo(
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const ColumnFamilyData* cfd) {
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}
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void ThreadStatusUtil::EraseDatabaseInfo(const DB* db) {
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}
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void ThreadStatusUtil::ResetThreadStatus() {
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}
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AutoThreadOperationStageUpdater::AutoThreadOperationStageUpdater(
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ThreadStatus::OperationStage stage) {
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}
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AutoThreadOperationStageUpdater::~AutoThreadOperationStageUpdater() {
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}
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#endif // ROCKSDB_USING_THREAD_STATUS
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} // namespace rocksdb
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