net/dccp/ccids/lib/tfrc.c

   1 /*
   2  * TFRC: main module holding the pieces of the TFRC library together
   3  *
   4  * Copyright (c) 2007 The University of Aberdeen, Scotland, UK
   5  * Copyright (c) 2007 Arnaldo Carvalho de Melo <acme@redhat.com>
   6  */
   7 #include <linux/module.h>
   8 #include <linux/moduleparam.h>
   9 #include "tfrc.h"
  10
  11 #ifdef CONFIG_IP_DCCP_TFRC_DEBUG
  12 int tfrc_debug;
  13 module_param(tfrc_debug, bool, 0444);
  14 MODULE_PARM_DESC(tfrc_debug, "Enable debug messages");
  15 #endif
  16
  17 extern int  tfrc_tx_packet_history_init(void);
  18 extern void tfrc_tx_packet_history_exit(void);
  19 extern int  tfrc_rx_packet_history_init(void);
  20 extern void tfrc_rx_packet_history_exit(void);
  21
  22 extern int  tfrc_li_init(void);
  23 extern void tfrc_li_exit(void);
  24
  25 static int __init tfrc_module_init(void)
  26 {
  27         int rc = tfrc_li_init();
  28
  29         if (rc)
  30                 goto out;
  31
  32         rc = tfrc_tx_packet_history_init();
  33         if (rc)
  34                 goto out_free_loss_intervals;
  35
  36         rc = tfrc_rx_packet_history_init();
  37         if (rc)
  38                 goto out_free_tx_history;
  39         return 0;
  40
  41 out_free_tx_history:
  42         tfrc_tx_packet_history_exit();
  43 out_free_loss_intervals:
  44         tfrc_li_exit();
  45 out:
  46         return rc;
  47 }
  48
  49 static void __exit tfrc_module_exit(void)
  50 {
  51         tfrc_rx_packet_history_exit();
  52         tfrc_tx_packet_history_exit();
  53         tfrc_li_exit();
  54 }
  55
  56 module_init(tfrc_module_init);
  57 module_exit(tfrc_module_exit);
  58
  59 MODULE_AUTHOR("Gerrit Renker <gerrit@erg.abdn.ac.uk>, "
  60               "Ian McDonald <ian.mcdonald@jandi.co.nz>, "
  61               "Arnaldo Carvalho de Melo <acme@redhat.com>");
  62 MODULE_DESCRIPTION("DCCP TFRC library");
  63 MODULE_LICENSE("GPL");