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
  27 struct lttng_condition_session_rotation {
  28         struct lttng_condition parent;
  29         char *session_name;
  30 };
  31
  32 struct lttng_condition_session_rotation_comm {
  33         /* Length includes the trailing \0. */
  34         uint32_t session_name_len;
  35         char session_name[];
  36 } LTTNG_PACKED;
  37
  38 struct lttng_evaluation_session_rotation {
  39         struct lttng_evaluation parent;
  40         uint64_t id;
  41         struct lttng_trace_archive_location *location;
  42 };
  43
  44 struct lttng_evaluation_session_rotation_comm {
  45         uint64_t id;
  46         uint8_t has_location;
  47 } LTTNG_PACKED;
  48
  49 LTTNG_HIDDEN
  50 ssize_t lttng_condition_session_rotation_ongoing_create_from_buffer(
  51                 const struct lttng_buffer_view *view,
  52                 struct lttng_condition **condition);
  53
  54 LTTNG_HIDDEN
  55 ssize_t lttng_condition_session_rotation_completed_create_from_buffer(
  56                 const struct lttng_buffer_view *view,
  57                 struct lttng_condition **condition);
  58
  59 LTTNG_HIDDEN
  60 struct lttng_evaluation *lttng_evaluation_session_rotation_ongoing_create(
  61                  uint64_t id);
  62
  63 /* Ownership of location is transferred to the evaluation. */
  64 LTTNG_HIDDEN
  65 struct lttng_evaluation *lttng_evaluation_session_rotation_completed_create(
  66                 uint64_t id,
  67                 struct lttng_trace_archive_location *location);
  68
  69 LTTNG_HIDDEN
  70 ssize_t lttng_evaluation_session_rotation_ongoing_create_from_buffer(
  71                 const struct lttng_buffer_view *view,
  72                 struct lttng_evaluation **evaluation);
  73
  74 LTTNG_HIDDEN
  75 ssize_t lttng_evaluation_session_rotation_completed_create_from_buffer(
  76                 const struct lttng_buffer_view *view,
  77                 struct lttng_evaluation **evaluation);
  78
  79 #endif /* LTTNG_CONDITION_SESSION_ROTATION_INTERNAL_H */