ceph/src/pmdk/src/include/pmemcompat.h

   1 /* SPDX-License-Identifier: BSD-3-Clause */
   2 /* Copyright 2016-2020, Intel Corporation */
   3
   4 /*
   5  * pmemcompat.h -- compatibility layer for libpmem* libraries
   6  */
   7
   8 #ifndef PMEMCOMPAT_H
   9 #define PMEMCOMPAT_H
  10 #include <windows.h>
  11
  12 /* for backward compatibility */
  13 #ifdef NVML_UTF8_API
  14 #pragma message( "NVML_UTF8_API macro is obsolete, please use PMDK_UTF8_API instead." )
  15 #ifndef PMDK_UTF8_API
  16 #define PMDK_UTF8_API
  17 #endif
  18 #endif
  19
  20 struct iovec {
  21         void  *iov_base;
  22         size_t iov_len;
  23 };
  24
  25 typedef int mode_t;
  26 /*
  27  * XXX: this code will not work on windows if our library is included in
  28  * an extern block.
  29  */
  30 #if defined(__cplusplus) && defined(_MSC_VER) && !defined(__typeof__)
  31 #include <type_traits>
  32 /*
  33  * These templates are used to remove a type reference(T&) which, in some
  34  * cases, is returned by decltype
  35  */
  36 namespace pmem {
  37
  38 namespace detail {
  39
  40 template<typename T>
  41 struct get_type {
  42         using type = T;
  43 };
  44
  45 template<typename T>
  46 struct get_type<T*> {
  47         using type = T*;
  48 };
  49
  50 template<typename T>
  51 struct get_type<T&> {
  52         using type = T;
  53 };
  54
  55 } /* namespace detail */
  56
  57 } /* namespace pmem */
  58
  59 #define __typeof__(p) pmem::detail::get_type<decltype(p)>::type
  60
  61 #endif
  62
  63 #endif