include/lttng/condition/session-rotation-internal.h

   1 /*
   2  * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
   3  *
   4  * This library is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU Lesser General Public License, version 2.1 only,
   6  * as published by the Free Software Foundation.
   7  *
   8  * This library is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
  11  * for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public License
  14  * along with this library; if not, write to the Free Software Foundation,
  15  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  16  */
  17
  18 #ifndef LTTNG_CONDITION_SESSION_ROTATION_INTERNAL_H
  19 #define LTTNG_CONDITION_SESSION_ROTATION_INTERNAL_H
  20
  21 #include <lttng/condition/session-rotation.h>
  22 #include <lttng/condition/condition-internal.h>
  23 #include <lttng/condition/evaluation-internal.h>
  24 #include "common/buffer-view.h"
  25 #include <lttng/location.h>
  26 #include <common/macros.h>
  27
  28 struct lttng_condition_session_rotation {
  29         struct lttng_condition parent;
  30         char *session_name;
  31 };
  32
  33 struct lttng_condition_session_rotation_comm {
  34         /* Length includes the trailing \0. */
  35         uint32_t session_name_len;
  36         char session_name[];
  37 } LTTNG_PACKED;
  38
  39 struct lttng_evaluation_session_rotation {
  40         struct lttng_evaluation parent;
  41         uint64_t id;
  42         struct lttng_trace_archive_location *location;
  43 };
  44
  45 struct lttng_evaluation_session_rotation_comm {
  46         uint64_t id;
  47         uint8_t has_location;
  48 } LTTNG_PACKED;
  49
  50 LTTNG_HIDDEN
  51 ssize_t lttng_condition_session_rotation_ongoing_create_from_buffer(
  52                 const struct lttng_buffer_view *view,
  53                 struct lttng_condition **condition);
  54
  55 LTTNG_HIDDEN
  56 ssize_t lttng_condition_session_rotation_completed_create_from_buffer(
  57                 const struct lttng_buffer_view *view,
  58                 struct lttng_condition **condition);
  59
  60 LTTNG_HIDDEN
  61 struct lttng_evaluation *lttng_evaluation_session_rotation_ongoing_create(
  62                  uint64_t id);
  63
  64 /* Ownership of location is transferred to the evaluation. */
  65 LTTNG_HIDDEN
  66 struct lttng_evaluation *lttng_evaluation_session_rotation_completed_create(
  67                 uint64_t id,
  68                 struct lttng_trace_archive_location *location);
  69
  70 LTTNG_HIDDEN
  71 ssize_t lttng_evaluation_session_rotation_ongoing_create_from_buffer(
  72                 const struct lttng_buffer_view *view,
  73                 struct lttng_evaluation **evaluation);
  74
  75 LTTNG_HIDDEN
  76 ssize_t lttng_evaluation_session_rotation_completed_create_from_buffer(
  77                 const struct lttng_buffer_view *view,
  78                 struct lttng_evaluation **evaluation);
  79
  80 #endif /* LTTNG_CONDITION_SESSION_ROTATION_INTERNAL_H */