include/side/event-description-abi.h

   1 // SPDX-License-Identifier: MIT
   2 /*
   3  * Copyright 2022-2023 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   4  */
   5
   6 #ifndef SIDE_EVENT_DESCRIPTION_ABI_H
   7 #define SIDE_EVENT_DESCRIPTION_ABI_H
   8
   9 #include <stdint.h>
  10 #include <side/macros.h>
  11 #include <side/endian.h>
  12
  13 #define SIDE_EVENT_DESCRIPTION_ABI_VERSION      0
  14
  15 enum side_event_flags {
  16         SIDE_EVENT_FLAG_VARIADIC = (1 << 0),
  17 };
  18
  19 enum side_loglevel {
  20         SIDE_LOGLEVEL_EMERG = 0,
  21         SIDE_LOGLEVEL_ALERT = 1,
  22         SIDE_LOGLEVEL_CRIT = 2,
  23         SIDE_LOGLEVEL_ERR = 3,
  24         SIDE_LOGLEVEL_WARNING = 4,
  25         SIDE_LOGLEVEL_NOTICE = 5,
  26         SIDE_LOGLEVEL_INFO = 6,
  27         SIDE_LOGLEVEL_DEBUG = 7,
  28 };
  29
  30 struct side_event_description {
  31         uint32_t struct_size;   /* Size of this structure. */
  32         uint32_t version;       /* Event description ABI version. */
  33
  34         side_ptr_t(struct side_event_state) state;
  35         side_ptr_t(const char) provider_name;
  36         side_ptr_t(const char) event_name;
  37         side_ptr_t(const struct side_event_field) fields;
  38         side_ptr_t(const struct side_attr) attr;
  39         uint64_t flags; /* Bitwise OR of enum side_event_flags */
  40         uint16_t nr_side_type_label;
  41         uint16_t nr_side_attr_type;
  42         side_enum_t(enum side_loglevel, uint32_t) loglevel;
  43         uint32_t nr_fields;
  44         uint32_t nr_attr;
  45         uint32_t nr_callbacks;
  46 #define side_event_description_orig_abi_last nr_callbacks
  47         /* End of fields supported in the original ABI. */
  48
  49         char end[];     /* End with a flexible array to account for extensibility. */
  50 } SIDE_PACKED;
  51
  52 #endif /* SIDE_EVENT_DESCRIPTION_ABI_H */