tools/perf/util/namespaces.c

   1 /*
   2  * This program is free software; you can redistribute it and/or modify
   3  * it under the terms of the GNU General Public License, version 2, as
   4  * published by the Free Software Foundation.
   5  *
   6  * Copyright (C) 2017 Hari Bathini, IBM Corporation
   7  */
   8
   9 #include "namespaces.h"
  10 #include "util.h"
  11 #include "event.h"
  12 #include <stdlib.h>
  13 #include <stdio.h>
  14 #include <string.h>
  15
  16 struct namespaces *namespaces__new(struct namespaces_event *event)
  17 {
  18         struct namespaces *namespaces;
  19         u64 link_info_size = ((event ? event->nr_namespaces : NR_NAMESPACES) *
  20                               sizeof(struct perf_ns_link_info));
  21
  22         namespaces = zalloc(sizeof(struct namespaces) + link_info_size);
  23         if (!namespaces)
  24                 return NULL;
  25
  26         namespaces->end_time = -1;
  27
  28         if (event)
  29                 memcpy(namespaces->link_info, event->link_info, link_info_size);
  30
  31         return namespaces;
  32 }
  33
  34 void namespaces__free(struct namespaces *namespaces)
  35 {
  36         free(namespaces);
  37 }