src/cpp-common/bt2/internal/utils.hpp

   1 /*
   2  * Copyright 2019-2020 (c) Philippe Proulx <pproulx@efficios.com>
   3  *
   4  * SPDX-License-Identifier: MIT
   5  */
   6
   7 #ifndef BABELTRACE_CPP_COMMON_BT2_INTERNAL_UTILS_HPP
   8 #define BABELTRACE_CPP_COMMON_BT2_INTERNAL_UTILS_HPP
   9
  10 #include <type_traits>
  11
  12 #include <babeltrace2/babeltrace.h>
  13
  14 #include "cpp-common/bt2/exc.hpp"
  15
  16 namespace bt2 {
  17
  18 template <typename>
  19 class CommonMapValue;
  20
  21 template <typename>
  22 class CommonFieldClass;
  23
  24 template <typename>
  25 class CommonPacket;
  26
  27 template <typename>
  28 class CommonStream;
  29
  30 namespace internal {
  31
  32 template <typename LibObjPtrT>
  33 void validateCreatedObjPtr(const LibObjPtrT libOjbPtr)
  34 {
  35     if (!libOjbPtr) {
  36         throw MemoryError {};
  37     }
  38 }
  39
  40 template <typename LibObjT, typename DepObjT, typename ConstDepObjT>
  41 using DepType =
  42     typename std::conditional<std::is_const<LibObjT>::value, ConstDepObjT, DepObjT>::type;
  43
  44 template <typename LibObjT>
  45 using DepUserAttrs = DepType<LibObjT, CommonMapValue<bt_value>, CommonMapValue<const bt_value>>;
  46
  47 template <typename LibObjT>
  48 using DepFc =
  49     DepType<LibObjT, CommonFieldClass<bt_field_class>, CommonFieldClass<const bt_field_class>>;
  50
  51 template <typename LibObjT>
  52 using DepPacket = DepType<LibObjT, CommonPacket<bt_packet>, CommonPacket<const bt_packet>>;
  53
  54 template <typename LibObjT>
  55 using DepStream = DepType<LibObjT, CommonStream<bt_stream>, CommonStream<const bt_stream>>;
  56
  57 template <typename ObjT>
  58 struct TypeDescr;
  59
  60 } /* namespace internal */
  61 } /* namespace bt2 */
  62
  63 #endif /* BABELTRACE_CPP_COMMON_BT2_INTERNAL_UTILS_HPP */