libc/src/pthread/pthread_self.cpp

//===-- Implementation of the pthread_self function -----------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "pthread_self.h"

#include "src/__support/common.h"
#include "src/__support/macros/config.h"
#include "src/__support/threads/thread.h"

#include <pthread.h> // For pthread_* type definitions.

namespace LIBC_NAMESPACE_DECL {

static_assert(sizeof(pthread_t) == sizeof(LIBC_NAMESPACE::Thread),
              "Mismatch between pthread_t and internal Thread.");

LLVM_LIBC_FUNCTION(pthread_t, pthread_self, ()) {
  pthread_t th;
  th.__attrib = self.attrib;
  return th;
}

} // namespace LIBC_NAMESPACE_DECL