release/src-rt-6.x.4708/linux/linux-2.6.36/net/dccp/ccids/lib/tfrc.c

   1 /*
   2  * TFRC library initialisation
   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 "tfrc.h"
   8
   9 #ifdef CONFIG_IP_DCCP_TFRC_DEBUG
  10 int tfrc_debug;
  11 module_param(tfrc_debug, bool, 0644);
  12 MODULE_PARM_DESC(tfrc_debug, "Enable TFRC debug messages");
  13 #endif
  14
  15 int __init tfrc_lib_init(void)
  16 {
  17         int rc = tfrc_li_init();
  18
  19         if (rc)
  20                 goto out;
  21
  22         rc = tfrc_tx_packet_history_init();
  23         if (rc)
  24                 goto out_free_loss_intervals;
  25
  26         rc = tfrc_rx_packet_history_init();
  27         if (rc)
  28                 goto out_free_tx_history;
  29         return 0;
  30
  31 out_free_tx_history:
  32         tfrc_tx_packet_history_exit();
  33 out_free_loss_intervals:
  34         tfrc_li_exit();
  35 out:
  36         return rc;
  37 }
  38
  39 void tfrc_lib_exit(void)
  40 {
  41         tfrc_rx_packet_history_exit();
  42         tfrc_tx_packet_history_exit();
  43         tfrc_li_exit();
  44 }