| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #pragma once |
| |
| #include <cstdint> |
| |
| namespace iceberg { |
| |
| /// \brief OS-native thread id for the calling thread, cached per thread. |
| /// |
| /// Returns the cross-process-correlatable id used by spdlog/glog (Linux |
| /// gettid, macOS pthread_threadid_np, Windows GetCurrentThreadId), not the |
| /// opaque std::thread::id -- and so avoids the std::formatter<std::thread::id> |
| /// (P2693) minimum-toolchain dependency. The first call on a thread performs |
| /// the OS query; later calls return the cached value (no syscall per call). |
| /// Declared here so the platform headers stay confined to the .cc. |
| uint64_t OsThreadId() noexcept; |
| |
| } // namespace iceberg |
