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 BT_HIDDEN
  18 struct bt_field_wrapper *bt_field_wrapper_new(void *data)
  19 {
  20         struct bt_field_wrapper *field_wrapper =
  21                 g_new0(struct bt_field_wrapper, 1);
  22
  23         BT_LOGD_STR("Creating empty field wrapper object.");
  24
  25         if (!field_wrapper) {
  26                 BT_LIB_LOGE_APPEND_CAUSE(
  27                         "Failed to allocate one field wrapper.");
  28                 goto end;
  29         }
  30
  31         bt_object_init_unique(&field_wrapper->base);
  32         BT_LOGD("Created empty field wrapper object: addr=%p",
  33                 field_wrapper);
  34
  35 end:
  36         return field_wrapper;
  37 }
  38
  39 BT_HIDDEN
  40 void bt_field_wrapper_destroy(struct bt_field_wrapper *field_wrapper)
  41 {
  42         BT_LOGD("Destroying field wrapper: addr=%p", field_wrapper);
  43
  44         if (field_wrapper->field) {
  45                 BT_LOGD_STR("Destroying field.");
  46                 bt_field_destroy((void *) field_wrapper->field);
  47                 field_wrapper->field = NULL;
  48         }
  49
  50         BT_LOGD_STR("Putting stream class.");
  51         g_free(field_wrapper);
  52 }
  53
  54 BT_HIDDEN
  55 struct bt_field_wrapper *bt_field_wrapper_create(
  56                 struct bt_object_pool *pool, struct bt_field_class *fc)
  57 {
  58         struct bt_field_wrapper *field_wrapper = NULL;
  59
  60         BT_ASSERT_DBG(pool);
  61         BT_ASSERT_DBG(fc);
  62         field_wrapper = bt_object_pool_create_object(pool);
  63         if (!field_wrapper) {
  64                 BT_LIB_LOGE_APPEND_CAUSE(
  65                         "Cannot allocate one field wrapper from field wrapper pool: "
  66                         "%![pool-]+o", pool);
  67                 goto error;
  68         }
  69
  70         if (!field_wrapper->field) {
  71                 field_wrapper->field = (void *) bt_field_create(fc);
  72                 if (!field_wrapper->field) {
  73                         BT_LIB_LOGE_APPEND_CAUSE(
  74                                 "Cannot create field wrapper from field class: "
  75                                 "%![fc-]+F", fc);
  76                         goto error;
  77                 }
  78
  79                 BT_LIB_LOGD("Created initial field wrapper object: "
  80                         "wrapper-addr=%p, %![field-]+f", field_wrapper,
  81                         field_wrapper->field);
  82         }
  83
  84         goto end;
  85
  86 error:
  87         if (field_wrapper) {
  88                 bt_field_wrapper_destroy(field_wrapper);
  89                 field_wrapper = NULL;
  90         }
  91
  92 end:
  93         return field_wrapper;
  94 }