root/opal/mca/hwloc/hwloc201/hwloc/hwloc/topology-fake.c

DEFINITIONS

1. hwloc_fake_component_instantiate
2. hwloc_fake_component_init
3. hwloc_fake_component_finalize

   1 /*
   2  * Copyright © 2012-2017 Inria.  All rights reserved.
   3  * See COPYING in top-level directory.
   4  */
   5 
   6 #include <private/autogen/config.h>
   7 #include <hwloc.h>
   8 #include <private/private.h>
   9 
  10 #include <stdlib.h>
  11 
  12 static struct hwloc_backend *
  13 hwloc_fake_component_instantiate(struct hwloc_disc_component *component __hwloc_attribute_unused,
  14                                  const void *_data1 __hwloc_attribute_unused,
  15                                  const void *_data2 __hwloc_attribute_unused,
  16                                  const void *_data3 __hwloc_attribute_unused)
  17 {
  18   if (getenv("HWLOC_DEBUG_FAKE_COMPONENT"))
  19     printf("fake component instantiated\n");
  20   return NULL;
  21 }
  22 
  23 static struct hwloc_disc_component hwloc_fake_disc_component = {
  24   HWLOC_DISC_COMPONENT_TYPE_MISC, /* so that it's always enabled when using the OS discovery */
  25   "fake",
  26   0, /* nothing to exclude */
  27   hwloc_fake_component_instantiate,
  28   100, /* make sure it's loaded before anything conflicting excludes it */
  29   1,
  30   NULL
  31 };
  32 
  33 static int
  34 hwloc_fake_component_init(unsigned long flags)
  35 {
  36   if (flags)
  37     return -1;
  38   if (hwloc_plugin_check_namespace("fake", "hwloc_backend_alloc") < 0)
  39     return -1;
  40   if (getenv("HWLOC_DEBUG_FAKE_COMPONENT"))
  41     printf("fake component initialized\n");
  42   return 0;
  43 }
  44 
  45 static void
  46 hwloc_fake_component_finalize(unsigned long flags)
  47 {
  48   if (flags)
  49     return;
  50   if (getenv("HWLOC_DEBUG_FAKE_COMPONENT"))
  51     printf("fake component finalized\n");
  52 }
  53 
  54 HWLOC_DECLSPEC extern const struct hwloc_component hwloc_fake_component; /* never linked statically in the core */
  55 
  56 const struct hwloc_component hwloc_fake_component = {
  57   HWLOC_COMPONENT_ABI,
  58   hwloc_fake_component_init, hwloc_fake_component_finalize,
  59   HWLOC_COMPONENT_TYPE_DISC,
  60   0,
  61   &hwloc_fake_disc_component
  62 };