include/babeltrace/ctf-ir/clock-value-set-internal.h

   1 #ifndef BABELTRACE_GRAPH_CLOCK_VALUE_SET_H
   2 #define BABELTRACE_GRAPH_CLOCK_VALUE_SET_H
   3
   4 /*
   5  * Copyright 2018 Philippe Proulx <pproulx@efficios.com>
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy
   8  * of this software and associated documentation files (the "Software"), to deal
   9  * in the Software without restriction, including without limitation the rights
  10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11  * copies of the Software, and to permit persons to whom the Software is
  12  * furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  20  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  */
  25
  26 #include <stdint.h>
  27 #include <glib.h>
  28 #include <babeltrace/ctf-ir/clock-value-internal.h>
  29 #include <babeltrace/ctf-ir/clock-class-internal.h>
  30 #include <babeltrace/assert-internal.h>
  31
  32 struct bt_clock_value_set {
  33         /* Unique objects owned by this */
  34         GPtrArray *clock_values;
  35
  36         /* Weak; points to one of the clock values above */
  37         struct bt_clock_value *default_cv;
  38 };
  39
  40 static inline
  41 int bt_clock_value_set_initialize(struct bt_clock_value_set *cv_set)
  42 {
  43         int ret = 0;
  44
  45         cv_set->clock_values = g_ptr_array_sized_new(1);
  46         if (!cv_set->clock_values) {
  47 #ifdef BT_LOGE_STR
  48                 BT_LOGE_STR("Failed to allocate one GPtrArray.");
  49 #endif
  50
  51                 ret = -1;
  52                 goto end;
  53         }
  54
  55         cv_set->default_cv = NULL;
  56
  57 end:
  58         return ret;
  59 }
  60
  61 static inline
  62 void bt_clock_value_set_reset(struct bt_clock_value_set *cv_set)
  63 {
  64         uint64_t i;
  65
  66         BT_ASSERT(cv_set);
  67         BT_ASSERT(cv_set->clock_values);
  68
  69         for (i = 0; i < cv_set->clock_values->len; i++) {
  70                 struct bt_clock_value *cv = cv_set->clock_values->pdata[i];
  71
  72                 BT_ASSERT(cv);
  73                 bt_clock_value_reset(cv);
  74                 bt_clock_value_set_is_frozen(cv, false);
  75         }
  76
  77         cv_set->default_cv = NULL;
  78 }
  79
  80 static inline
  81 void bt_clock_value_set_finalize(struct bt_clock_value_set *cv_set)
  82 {
  83         uint64_t i;
  84
  85         BT_ASSERT(cv_set);
  86
  87         if (cv_set->clock_values) {
  88                 for (i = 0; i < cv_set->clock_values->len; i++) {
  89                         struct bt_clock_value *cv =
  90                                 cv_set->clock_values->pdata[i];
  91
  92                         BT_ASSERT(cv);
  93                         bt_clock_value_recycle(cv);
  94                 }
  95
  96                 g_ptr_array_free(cv_set->clock_values, TRUE);
  97         }
  98
  99         cv_set->default_cv = NULL;
 100 }
 101
 102 static inline
 103 int bt_clock_value_set_set_clock_value(
 104                 struct bt_clock_value_set *cv_set,
 105                 struct bt_clock_class *cc, uint64_t raw_value,
 106                 bt_bool is_default)
 107 {
 108         int ret = 0;
 109         struct bt_clock_value *clock_value = NULL;
 110         uint64_t i;
 111
 112         BT_ASSERT(cv_set);
 113         BT_ASSERT(cc);
 114
 115         /* Check if we already have a value for this clock class */
 116         for (i = 0; i < cv_set->clock_values->len; i++) {
 117                 struct bt_clock_value *cv = cv_set->clock_values->pdata[i];
 118
 119                 BT_ASSERT(cv);
 120
 121                 if (cv->clock_class == cc) {
 122                         clock_value = cv;
 123                         break;
 124                 }
 125         }
 126
 127         if (!clock_value) {
 128                 clock_value = bt_clock_value_create(cc);
 129                 if (!clock_value) {
 130 #ifdef BT_LIB_LOGE
 131                         BT_LIB_LOGE("Cannot create a clock value from a clock class: "
 132                                 "%![cc-]+K", cc);
 133 #endif
 134
 135                         ret = -1;
 136                         goto end;
 137                 }
 138
 139                 g_ptr_array_add(cv_set->clock_values, clock_value);
 140         }
 141
 142 #ifdef BT_ASSERT_PRE_HOT
 143         BT_ASSERT_PRE_HOT(clock_value, "Clock value", ": %!+k", clock_value);
 144 #endif
 145
 146         ret = bt_clock_value_set_value_inline(clock_value, raw_value);
 147         if (ret) {
 148                 goto end;
 149         }
 150
 151         if (is_default) {
 152                 cv_set->default_cv = clock_value;
 153         }
 154
 155 end:
 156         return ret;
 157 }
 158
 159 #endif /* BABELTRACE_GRAPH_CLOCK_VALUE_SET_H */