src/lib/trace-ir/field-wrapper.c

   1 /*
   2  * Copyright 2018 Philippe Proulx <pproulx@efficios.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a copy
   5  * of this software and associated documentation files (the "Software"), to deal
   6  * in the Software without restriction, including without limitation the rights
   7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   8  * copies of the Software, and to permit persons to whom the Software is
   9  * furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  19  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20  * SOFTWARE.
  21  */
  22
  23 #define BT_LOG_TAG "FIELD-WRAPPER"
  24 #include "lib/lib-logging.h"
  25
  26 #include "lib/object-pool.h"
  27 #include "lib/object.h"
  28 #include <glib.h>
  29
  30 #include "field-wrapper.h"
  31 #include "field.h"
  32
  33 BT_HIDDEN
  34 struct bt_field_wrapper *bt_field_wrapper_new(void *data)
  35 {
  36         struct bt_field_wrapper *field_wrapper =
  37                 g_new0(struct bt_field_wrapper, 1);
  38
  39         BT_LOGD_STR("Creating empty field wrapper object.");
  40
  41         if (!field_wrapper) {
  42                 BT_LOGE("Failed to allocate one field wrapper.");
  43                 goto end;
  44         }
  45
  46         bt_object_init_unique(&field_wrapper->base);
  47         BT_LOGD("Created empty field wrapper object: addr=%p",
  48                 field_wrapper);
  49
  50 end:
  51         return field_wrapper;
  52 }
  53
  54 BT_HIDDEN
  55 void bt_field_wrapper_destroy(struct bt_field_wrapper *field_wrapper)
  56 {
  57         BT_LOGD("Destroying field wrapper: addr=%p", field_wrapper);
  58
  59         if (field_wrapper->field) {
  60                 BT_LOGD_STR("Destroying field.");
  61                 bt_field_destroy((void *) field_wrapper->field);
  62                 field_wrapper->field = NULL;
  63         }
  64
  65         BT_LOGD_STR("Putting stream class.");
  66         g_free(field_wrapper);
  67 }
  68
  69 BT_HIDDEN
  70 struct bt_field_wrapper *bt_field_wrapper_create(
  71                 struct bt_object_pool *pool, struct bt_field_class *fc)
  72 {
  73         struct bt_field_wrapper *field_wrapper = NULL;
  74
  75         BT_ASSERT(pool);
  76         BT_ASSERT(fc);
  77         field_wrapper = bt_object_pool_create_object(pool);
  78         if (!field_wrapper) {
  79                 BT_LIB_LOGE("Cannot allocate one field wrapper from field wrapper pool: "
  80                         "%![pool-]+o", pool);
  81                 goto error;
  82         }
  83
  84         if (!field_wrapper->field) {
  85                 field_wrapper->field = (void *) bt_field_create(fc);
  86                 if (!field_wrapper->field) {
  87                         BT_LIB_LOGE("Cannot create field wrapper from field class: "
  88                                 "%![fc-]+F", fc);
  89                         goto error;
  90                 }
  91
  92                 BT_LIB_LOGD("Created initial field wrapper object: "
  93                         "wrapper-addr=%p, %![field-]+f", field_wrapper,
  94                         field_wrapper->field);
  95         }
  96
  97         goto end;
  98
  99 error:
 100         if (field_wrapper) {
 101                 bt_field_wrapper_destroy(field_wrapper);
 102                 field_wrapper = NULL;
 103         }
 104
 105 end:
 106         return field_wrapper;
 107 }