C++ (Cpp) rdt_preinit示例

示例#1

文件： intel_rdt.c 项目： octo/collectd

static int rdt_preinit(void) {
  int ret;

  if (g_rdt != NULL) {
    /* already initialized if config callback was called before init callback */
    return 0;
  }

  g_rdt = calloc(1, sizeof(*g_rdt));
  if (g_rdt == NULL) {
    ERROR(RDT_PLUGIN ": Failed to allocate memory for rdt context.");
    return -ENOMEM;
  }

  struct pqos_config pqos = {.fd_log = -1,
                             .callback_log = rdt_pqos_log,
                             .context_log = NULL,
                             .verbose = 0};

  ret = pqos_init(&pqos);
  if (ret != PQOS_RETVAL_OK) {
    ERROR(RDT_PLUGIN ": Error initializing PQoS library!");
    goto rdt_preinit_error1;
  }

  ret = pqos_cap_get(&g_rdt->pqos_cap, &g_rdt->pqos_cpu);
  if (ret != PQOS_RETVAL_OK) {
    ERROR(RDT_PLUGIN ": Error retrieving PQoS capabilities.");
    goto rdt_preinit_error2;
  }

  ret = pqos_cap_get_type(g_rdt->pqos_cap, PQOS_CAP_TYPE_MON, &g_rdt->cap_mon);
  if (ret == PQOS_RETVAL_PARAM) {
    ERROR(RDT_PLUGIN ": Error retrieving monitoring capabilities.");
    goto rdt_preinit_error2;
  }

  if (g_rdt->cap_mon == NULL) {
    ERROR(
        RDT_PLUGIN
        ": Monitoring capability not detected. Nothing to do for the plugin.");
    goto rdt_preinit_error2;
  }

  /* Reset pqos monitoring groups registers */
  pqos_mon_reset();

  return 0;

rdt_preinit_error2:
  pqos_fini();

rdt_preinit_error1:

  sfree(g_rdt);

  return -1;
}

static int rdt_config(oconfig_item_t *ci) {
  if (rdt_preinit() != 0) {
    g_state = CONFIGURATION_ERROR;
    /* if we return -1 at this point collectd
      reports a failure in configuration and
      aborts
    */
    return (0);
  }

  for (int i = 0; i < ci->children_num; i++) {
    oconfig_item_t *child = ci->children + i;

    if (strcasecmp("Cores", child->key) == 0) {
      if (rdt_config_cgroups(child) != 0) {
        g_state = CONFIGURATION_ERROR;
        /* if we return -1 at this point collectd
           reports a failure in configuration and
           aborts
         */
        return (0);
      }

#if COLLECT_DEBUG
      rdt_dump_cgroups();
#endif /* COLLECT_DEBUG */
    } else {
      ERROR(RDT_PLUGIN ": Unknown configuration parameter \"%s\".", child->key);
    }
  }

  return 0;
}

static void rdt_submit_derive(const char *cgroup, const char *type,
                              const char *type_instance, derive_t value) {
  value_list_t vl = VALUE_LIST_INIT;

  vl.values = &(value_t){.derive = value};
  vl.values_len = 1;

  sstrncpy(vl.plugin, RDT_PLUGIN, sizeof(vl.plugin));
  snprintf(vl.plugin_instance, sizeof(vl.plugin_instance), "%s", cgroup);
  sstrncpy(vl.type, type, sizeof(vl.type));
  if (type_instance)
    sstrncpy(vl.type_instance, type_instance, sizeof(vl.type_instance));

  plugin_dispatch_values(&vl);
}

示例#2

文件： intel_rdt.c 项目： ajdiaz/collectd

static int rdt_preinit(void) {
  int ret;

  if (g_rdt != NULL) {
    /* already initialized if config callback was called before init callback */
    return (0);
  }

  g_rdt = calloc(1, sizeof(*g_rdt));
  if (g_rdt == NULL) {
    ERROR(RDT_PLUGIN ": Failed to allocate memory for rdt context.");
    return (-ENOMEM);
  }

  struct pqos_config pqos = {.fd_log = -1,
                             .callback_log = rdt_pqos_log,
                             .context_log = NULL,
                             .verbose = 0};

  ret = pqos_init(&pqos);
  if (ret != PQOS_RETVAL_OK) {
    ERROR(RDT_PLUGIN ": Error initializing PQoS library!");
    goto rdt_preinit_error1;
  }

  ret = pqos_cap_get(&g_rdt->pqos_cap, &g_rdt->pqos_cpu);
  if (ret != PQOS_RETVAL_OK) {
    ERROR(RDT_PLUGIN ": Error retrieving PQoS capabilities.");
    goto rdt_preinit_error2;
  }

  ret = pqos_cap_get_type(g_rdt->pqos_cap, PQOS_CAP_TYPE_MON, &g_rdt->cap_mon);
  if (ret == PQOS_RETVAL_PARAM) {
    ERROR(RDT_PLUGIN ": Error retrieving monitoring capabilities.");
    goto rdt_preinit_error2;
  }

  if (g_rdt->cap_mon == NULL) {
    ERROR(
        RDT_PLUGIN
        ": Monitoring capability not detected. Nothing to do for the plugin.");
    goto rdt_preinit_error2;
  }

  /* Reset pqos monitoring groups registers */
  pqos_mon_reset();

  return (0);

rdt_preinit_error2:
  pqos_fini();

rdt_preinit_error1:

  sfree(g_rdt);

  return (-1);
}

static int rdt_config(oconfig_item_t *ci) {
  int ret = 0;

  ret = rdt_preinit();
  if (ret != 0) {
    g_state = CONFIGURATION_ERROR;
    /* if we return -1 at this point collectd
      reports a failure in configuration and
      aborts
    */
    goto exit;
  }

  for (int i = 0; i < ci->children_num; i++) {
    oconfig_item_t *child = ci->children + i;

    if (strcasecmp("Cores", child->key) == 0) {

      ret = rdt_config_cgroups(child);
      if (ret != 0) {
        g_state = CONFIGURATION_ERROR;
        /* if we return -1 at this point collectd
           reports a failure in configuration and
           aborts
         */
        goto exit;
      }

#if COLLECT_DEBUG
      rdt_dump_cgroups();
#endif /* COLLECT_DEBUG */

    } else {
      ERROR(RDT_PLUGIN ": Unknown configuration parameter \"%s\".", child->key);
    }
  }

exit:
  return (0);
}