src/common/event.cpp

   1 /*
   2  * Copyright (C) 2018 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   3  *
   4  * SPDX-License-Identifier: LGPL-2.1-only
   5  *
   6  */
   7
   8 #include <lttng/event-internal.h>
   9 #include <common/error.h>
  10
  11 struct lttng_event *lttng_event_copy(const struct lttng_event *event)
  12 {
  13         struct lttng_event *new_event;
  14         struct lttng_event_extended *new_event_extended;
  15
  16         new_event = (lttng_event *) zmalloc(sizeof(*event));
  17         if (!new_event) {
  18                 PERROR("Error allocating event structure");
  19                 goto end;
  20         }
  21
  22         /* Copy the content of the old event. */
  23         memcpy(new_event, event, sizeof(*event));
  24
  25         /*
  26          * We need to create a new extended since the previous pointer is now
  27          * invalid.
  28          */
  29         new_event_extended = (lttng_event_extended *) zmalloc(sizeof(*new_event_extended));
  30         if (!new_event_extended) {
  31                 PERROR("Error allocating event extended structure");
  32                 goto error;
  33         }
  34
  35         new_event->extended.ptr = new_event_extended;
  36 end:
  37         return new_event;
  38 error:
  39         free(new_event);
  40         new_event = NULL;
  41         goto end;
  42 }