lib/librte_eal/common/rte_option.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Intel Corporation.
   3  */
   4
   5 #include <unistd.h>
   6 #include <string.h>
   7
   8 #include <rte_eal.h>
   9 #include <rte_option.h>
  10
  11 #include "eal_private.h"
  12
  13 TAILQ_HEAD(rte_option_list, rte_option);
  14
  15 struct rte_option_list rte_option_list =
  16         TAILQ_HEAD_INITIALIZER(rte_option_list);
  17
  18 static struct rte_option *option;
  19
  20 int
  21 rte_option_parse(const char *opt)
  22 {
  23         if (strlen(opt) <= 2 ||
  24             strncmp(opt, "--", 2))
  25                 return -1;
  26
  27         /* Check if the option is registered */
  28         TAILQ_FOREACH(option, &rte_option_list, next) {
  29                 if (strcmp(&opt[2], option->opt_str) == 0) {
  30                         option->enabled = 1;
  31                         return 0;
  32                 }
  33         }
  34
  35         return -1;
  36 }
  37
  38 void __rte_experimental
  39 rte_option_register(struct rte_option *opt)
  40 {
  41         TAILQ_FOREACH(option, &rte_option_list, next) {
  42                 if (strcmp(opt->opt_str, option->opt_str) == 0) {
  43                         RTE_LOG(INFO, EAL, "Option %s has already been registered.\n",
  44                                         opt->opt_str);
  45                         return;
  46                 }
  47         }
  48
  49         TAILQ_INSERT_HEAD(&rte_option_list, opt, next);
  50 }
  51
  52 void
  53 rte_option_init(void)
  54 {
  55         TAILQ_FOREACH(option, &rte_option_list, next) {
  56                 if (option->enabled)
  57                         option->cb();
  58         }
  59 }