Cleanup: Move `create_posix_shm()` to common/shm.c

[lttng-tools.git] / src / common / dynamic-array.c

diff --git a/src/common/dynamic-array.c b/src/common/dynamic-array.c
index bea903cafeae2a115b1fc1816345a0d50017dc8f..81c2c3efa15ba1927a61ecc608ea07a9bd9b6f07 100644 (file)
--- a/src/common/dynamic-array.c
+++ b/src/common/dynamic-array.c
@@ -1,18 +1,8 @@
 /*
- * Copyright (C) 2019 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright (C) 2019 Jérémie Galarneau <jeremie.galarneau@efficios.com>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License, version 2.1 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: LGPL-2.1-only
  *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
- * for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #include <common/dynamic-array.h>
@@ -28,6 +18,35 @@ void lttng_dynamic_array_init(struct lttng_dynamic_array *array,
        array->destructor = destructor;
 }
 
+LTTNG_HIDDEN
+int lttng_dynamic_array_set_count(struct lttng_dynamic_array *array,
+               size_t new_element_count)
+{
+       int ret;
+
+       if (!array) {
+               ret = -1;
+               goto end;
+       }
+
+       if (array->destructor) {
+               size_t i;
+
+               for (i = new_element_count; i < array->size; i++) {
+                       void *element = lttng_dynamic_array_get_element(
+                                       array, i);
+
+                       array->destructor(element);
+               }
+       }
+
+       array->size = new_element_count;
+       ret = lttng_dynamic_buffer_set_size(&array->buffer,
+                       new_element_count * array->element_size);
+end:
+       return ret;
+}
+
 LTTNG_HIDDEN
 int lttng_dynamic_array_add_element(struct lttng_dynamic_array *array,
                const void *element)
@@ -99,7 +118,7 @@ void lttng_dynamic_array_clear(struct lttng_dynamic_array *array)
                }
        }
 
-       lttng_dynamic_buffer_set_size(&array->buffer, 0);
+       (void) lttng_dynamic_buffer_set_size(&array->buffer, 0);
        array->size = 0;
 }