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

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright 2018 Philippe Proulx <pproulx@efficios.com>
   5  */
   6
   7 #define BT_LOG_TAG "LIB/FIELD-WRAPPER"
   8 #include "lib/logging.h"
   9
  10 #include "lib/object-pool.h"
  11 #include "lib/object.h"
  12 #include <glib.h>
  13
  14 #include "field-wrapper.h"
  15 #include "field.h"
  16
  17 struct bt_field_wrapper *bt_field_wrapper_new(void *data __attribute__((unused)))
  18 {
  19         struct bt_field_wrapper *field_wrapper =
  20                 g_new0(struct bt_field_wrapper, 1);
  21
  22         BT_LOGD_STR("Creating empty field wrapper object.");
  23
  24         if (!field_wrapper) {
  25                 BT_LIB_LOGE_APPEND_CAUSE(
  26                         "Failed to allocate one field wrapper.");
  27                 goto end;
  28         }
  29
  30         bt_object_init_unique(&field_wrapper->base);
  31         BT_LOGD("Created empty field wrapper object: addr=%p",
  32                 field_wrapper);
  33
  34 end:
  35         return field_wrapper;
  36 }
  37
  38 void bt_field_wrapper_destroy(struct bt_field_wrapper *field_wrapper)
  39 {
  40         BT_LOGD("Destroying field wrapper: addr=%p", field_wrapper);
  41
  42         if (field_wrapper->field) {
  43                 BT_LOGD_STR("Destroying field.");
  44                 bt_field_destroy((void *) field_wrapper->field);
  45                 field_wrapper->field = NULL;
  46         }
  47
  48         BT_LOGD_STR("Putting stream class.");
  49         g_free(field_wrapper);
  50 }
  51
  52 struct bt_field_wrapper *bt_field_wrapper_create(
  53                 struct bt_object_pool *pool, struct bt_field_class *fc)
  54 {
  55         struct bt_field_wrapper *field_wrapper = NULL;
  56
  57         BT_ASSERT_DBG(pool);
  58         BT_ASSERT_DBG(fc);
  59         field_wrapper = bt_object_pool_create_object(pool);
  60         if (!field_wrapper) {
  61                 BT_LIB_LOGE_APPEND_CAUSE(
  62                         "Cannot allocate one field wrapper from field wrapper pool: "
  63                         "%![pool-]+o", pool);
  64                 goto error;
  65         }
  66
  67         if (!field_wrapper->field) {
  68                 field_wrapper->field = (void *) bt_field_create(fc);
  69                 if (!field_wrapper->field) {
  70                         BT_LIB_LOGE_APPEND_CAUSE(
  71                                 "Cannot create field wrapper from field class: "
  72                                 "%![fc-]+F", fc);
  73                         goto error;
  74                 }
  75
  76                 BT_LIB_LOGD("Created initial field wrapper object: "
  77                         "wrapper-addr=%p, %![field-]+f", field_wrapper,
  78                         field_wrapper->field);
  79         }
  80
  81         goto end;
  82
  83 error:
  84         if (field_wrapper) {
  85                 bt_field_wrapper_destroy(field_wrapper);
  86                 field_wrapper = NULL;
  87         }
  88
  89 end:
  90         return field_wrapper;
  91 }