30 lines · cpp
1//===-- Linux implementation of close -------------------------------------===//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/unistd/close.h"10 11#include "src/__support/OSUtil/fcntl.h"12#include "src/__support/common.h"13#include "src/__support/libc_errno.h"14#include "src/__support/macros/config.h"15#include <sys/syscall.h> // For syscall numbers.16 17namespace LIBC_NAMESPACE_DECL {18 19LLVM_LIBC_FUNCTION(int, close, (int fd)) {20 auto result = internal::close(fd);21 22 if (!result.has_value()) {23 libc_errno = result.error();24 return -1;25 }26 return result.value();27}28 29} // namespace LIBC_NAMESPACE_DECL30