src/ctf-writer/object-pool.c

   1 /*
   2  * Copyright (c) 2018 EfficiOS Inc. and Linux Foundation
   3  * Copyright (c) 2018 Philippe Proulx <pproulx@efficios.com>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a copy
   6  * of this software and associated documentation files (the "Software"), to deal
   7  * in the Software without restriction, including without limitation the rights
   8  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   9  * copies of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included in
  13  * all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  18  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  */
  23
  24 #define BT_LOG_TAG "OBJECT-POOL"
  25 #include "logging.h"
  26
  27 #include <stdint.h>
  28
  29 #include "common/assert.h"
  30
  31 #include "object-pool.h"
  32
  33 int bt_ctf_object_pool_initialize(struct bt_ctf_object_pool *pool,
  34                 bt_ctf_object_pool_new_object_func new_object_func,
  35                 bt_ctf_object_pool_destroy_object_func destroy_object_func,
  36                 void *data)
  37 {
  38         int ret = 0;
  39
  40         BT_ASSERT(new_object_func);
  41         BT_ASSERT(destroy_object_func);
  42         BT_LOGD("Initializing object pool: addr=%p, data-addr=%p",
  43                 pool, data);
  44         pool->objects = g_ptr_array_new();
  45         if (!pool->objects) {
  46                 BT_LOGE_STR("Failed to allocate a GPtrArray.");
  47                 goto error;
  48         }
  49
  50         pool->funcs.new_object = new_object_func;
  51         pool->funcs.destroy_object = destroy_object_func;
  52         pool->data = data;
  53         pool->size = 0;
  54         BT_LOGD("Initialized object pool.");
  55         goto end;
  56
  57 error:
  58         if (pool) {
  59                 bt_ctf_object_pool_finalize(pool);
  60         }
  61
  62         ret = -1;
  63
  64 end:
  65         return ret;
  66 }
  67
  68 void bt_ctf_object_pool_finalize(struct bt_ctf_object_pool *pool)
  69 {
  70         uint64_t i;
  71
  72         BT_ASSERT(pool);
  73         BT_LOGD("Finalizing object pool.");
  74
  75         if (pool->objects) {
  76                 for (i = 0; i < pool->size; i++) {
  77                         void *obj = pool->objects->pdata[i];
  78
  79                         if (obj) {
  80                                 pool->funcs.destroy_object(obj, pool->data);
  81                         }
  82                 }
  83
  84                 g_ptr_array_free(pool->objects, TRUE);
  85                 pool->objects = NULL;
  86         }
  87 }