g2gps commented on code in PR #10572: URL: https://github.com/apache/nuttx/pull/10572#discussion_r1325462641
########## libs/libc/sched/sched_gettid.c: ########## @@ -0,0 +1,65 @@ +/**************************************************************************** + * libs/libc/sched/sched_gettid.c + * + * 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> +#include <nuttx/tls.h> + +#include <unistd.h> + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxsched_gettid + * + * Description: + * Utilise thread local storage to get the thread ID of the currently + * executing thread and cache the result for further queries. Caching this + * result reduces system call loading when using CONFIG_BUILD_KERNEL. + * + * Input parameters: + * None + * + * Returned Value: + * On success, returns the thread ID of the calling process. + * + ****************************************************************************/ + +#if !defined(CONFIG_BUILD_FLAT) && defined(CONFIG_SCHED_THREAD_LOCAL) && !defined(__KERNEL__) + +pid_t sched_gettid(void) +{ + FAR struct tls_info_s *tlsinfo = tls_get_info(); + + DEBUGASSERT(tlsinfo); + + if (tlsinfo->tl_tid <= 0) + { + tlsinfo->tl_tid = gettid(); Review Comment: Sorry, can you explain a little more specifically what you mean. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
