libc/src/dirent/readdir.cpp

   1 //===-- Implementation of readdir -----------------------------------------===//
   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 "readdir.h"
  10
  11 #include "src/__support/File/dir.h"
  12 #include "src/__support/common.h"
  13 #include "src/errno/libc_errno.h"
  14
  15 #include <dirent.h>
  16
  17 namespace LIBC_NAMESPACE {
  18
  19 LLVM_LIBC_FUNCTION(struct ::dirent *, readdir, (::DIR * dir)) {
  20   auto *d = reinterpret_cast<LIBC_NAMESPACE::Dir *>(dir);
  21   auto dirent_val = d->read();
  22   if (!dirent_val) {
  23     libc_errno = dirent_val.error();
  24     return nullptr;
  25   }
  26   return dirent_val.value();
  27 }
  28
  29 } // namespace LIBC_NAMESPACE