| 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 |