src/common/event.c

   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 LTTNG_HIDDEN
  12 struct lttng_event *lttng_event_copy(const struct lttng_event *event)
  13 {
  14         struct lttng_event *new_event;
  15         struct lttng_event_extended *new_event_extended;
  16
  17         new_event = zmalloc(sizeof(*event));
  18         if (!new_event) {
  19                 PERROR("Error allocating event structure");
  20                 goto end;
  21         }
  22
  23         /* Copy the content of the old event. */
  24         memcpy(new_event, event, sizeof(*event));
  25
  26         /*
  27          * We need to create a new extended since the previous pointer is now
  28          * invalid.
  29          */
  30         new_event_extended = zmalloc(sizeof(*new_event_extended));
  31         if (!new_event_extended) {
  32                 PERROR("Error allocating event extended structure");
  33                 goto error;
  34         }
  35
  36         new_event->extended.ptr = new_event_extended;
  37 end:
  38         return new_event;
  39 error:
  40         free(new_event);
  41         new_event = NULL;
  42         goto end;
  43 }