src/bin/lttng-sessiond/ust-field-convert.hpp

   1 /*
   2  * Copyright (C) 2022 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-only
   5  *
   6  */
   7
   8 #ifndef LTTNG_UST_FIELD_CONVERT_H
   9 #define LTTNG_UST_FIELD_CONVERT_H
  10
  11 #include "field.hpp"
  12 #include "ust-registry.hpp"
  13 #include "ust-registry-session.hpp"
  14
  15 #include <cstddef>
  16 #include <vector>
  17 #include <type_traits>
  18
  19 namespace lttng {
  20 namespace sessiond {
  21 namespace ust {
  22
  23 enum class ctl_field_quirks : unsigned int {
  24         NONE = 0,
  25         /*
  26          * LTTng-UST with ABI major version <= 9 express variants with a tag
  27          * enumeration that doesn't match the fields of the variant. The
  28          * tag's mapping names are systematically prefixed with an underscore.
  29          */
  30         UNDERSCORE_PREFIXED_VARIANT_TAG_MAPPINGS = 1 << 0,
  31 };
  32
  33 inline ctl_field_quirks operator&(ctl_field_quirks lhs, ctl_field_quirks rhs)
  34 {
  35         using enum_type = std::underlying_type<ctl_field_quirks>::type;
  36         return ctl_field_quirks(static_cast<enum_type>(lhs) & static_cast<enum_type>(rhs));
  37 }
  38
  39 inline ctl_field_quirks operator|(ctl_field_quirks lhs, ctl_field_quirks rhs)
  40 {
  41         using enum_type = std::underlying_type<ctl_field_quirks>::type;
  42         return ctl_field_quirks(static_cast<enum_type>(lhs) | static_cast<enum_type>(rhs));
  43 }
  44
  45 std::vector<trace::field::cuptr> create_trace_fields_from_ust_ctl_fields(
  46                 const lttng::sessiond::ust::registry_session& session,
  47                 const lttng_ust_ctl_field *fields,
  48                 std::size_t field_count,
  49                 trace::field_location::root lookup_root,
  50                 ctl_field_quirks quirks = ctl_field_quirks::NONE);
  51
  52 } /* namespace ust */
  53 } /* namespace sessiond */
  54 } /* namespace lttng */
  55
  56 #endif /* LTTNG_UST_FIELD_CONVERT_H */