include/babeltrace/ctf-writer/event-fields.h

   1 #ifndef BABELTRACE_CTF_WRITER_EVENT_FIELDS_H
   2 #define BABELTRACE_CTF_WRITER_EVENT_FIELDS_H
   3
   4 /*
   5  * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   6  *
   7  * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a copy
  10  * of this software and associated documentation files (the "Software"), to deal
  11  * in the Software without restriction, including without limitation the rights
  12  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  13  * copies of the Software, and to permit persons to whom the Software is
  14  * furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included in
  17  * all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  22  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  23  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  24  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  25  * SOFTWARE.
  26  *
  27  * The Common Trace Format (CTF) Specification is available at
  28  * http://www.efficios.com/ctf
  29  */
  30
  31 #include <babeltrace/object.h>
  32 #include <babeltrace/ctf-writer/field-types.h>
  33 #include <babeltrace/ctf-writer/fields.h>
  34
  35 #ifdef __cplusplus
  36 extern "C" {
  37 #endif
  38
  39 /*
  40  * bt_ctf_field_get and bt_ctf_field_put: increment and decrement the
  41  * field's reference count.
  42  *
  43  * You may also use bt_object_get_ref() and bt_object_put_ref() with field objects.
  44  *
  45  * These functions ensure that the field won't be destroyed when it
  46  * is in use. The same number of get and put (plus one extra put to
  47  * release the initial reference done at creation) have to be done to
  48  * destroy a field.
  49  *
  50  * When the field's reference count is decremented to 0 by a bt_ctf_field_put,
  51  * the field is freed.
  52  *
  53  * @param field Field instance.
  54  */
  55
  56 /* Pre-2.0 CTF writer compatibility */
  57 static inline
  58 void bt_ctf_field_get(struct bt_ctf_field *field)
  59 {
  60         bt_object_get_ref(field);
  61 }
  62
  63 /* Pre-2.0 CTF writer compatibility */
  64 static inline
  65 void bt_ctf_field_put(struct bt_ctf_field *field)
  66 {
  67         bt_object_put_ref(field);
  68 }
  69
  70 #ifdef __cplusplus
  71 }
  72 #endif
  73
  74 #endif /* BABELTRACE_CTF_WRITER_EVENT_FIELDS_H */