1 //===-- Linux implementation of the pthread_setname_np function -----------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "pthread_getname_np.h" 10 11 #include "src/__support/CPP/span.h" 12 #include "src/__support/CPP/stringstream.h" 13 #include "src/__support/common.h" 14 #include "src/__support/macros/config.h" 15 #include "src/__support/threads/thread.h" 16 17 #include <pthread.h> 18 #include <stddef.h> 19 20 namespace LIBC_NAMESPACE_DECL { 21 22 static_assert(sizeof(pthread_t) == sizeof(LIBC_NAMESPACE::Thread), 23 "Mismatch between pthread_t and internal Thread."); 24 25 LLVM_LIBC_FUNCTION(int, pthread_getname_np, 26 (pthread_t th, char *buf, size_t len)) { 27 auto *thread = reinterpret_cast<LIBC_NAMESPACE::Thread *>(&th); 28 cpp::span<char> name_buf(buf, len); 29 cpp::StringStream name_stream(name_buf); 30 return thread->get_name(name_stream); 31 } 32 33 } // namespace LIBC_NAMESPACE_DECL 34