28 lines · cpp
1//===-- Linux implementation of wait --------------------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/__support/common.h"10#include "src/__support/libc_assert.h"11 12#include "src/__support/macros/config.h"13#include "src/sys/wait/wait.h"14#include "src/sys/wait/wait4Impl.h"15 16namespace LIBC_NAMESPACE_DECL {17 18LLVM_LIBC_FUNCTION(pid_t, wait, (int *wait_status)) {19 auto result = internal::wait4impl(-1, wait_status, 0, 0);20 if (!result.has_value()) {21 libc_errno = result.error();22 return -1;23 }24 return result.value();25}26 27} // namespace LIBC_NAMESPACE_DECL28