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