frsh_api/frsh_feedback.c

   1 /**************************************************************************/
   2 /* ---------------------------------------------------------------------- */
   3 /* Copyright (C) 2006 - 2008 FRESCOR consortium partners:                 */
   4 /*                                                                        */
   5 /*   Universidad de Cantabria,              SPAIN                         */
   6 /*   University of York,                    UK                            */
   7 /*   Scuola Superiore Sant'Anna,            ITALY                         */
   8 /*   Kaiserslautern University,             GERMANY                       */
   9 /*   Univ. Politécnica  Valencia,           SPAIN                        */
  10 /*   Czech Technical University in Prague,  CZECH REPUBLIC                */
  11 /*   ENEA                                   SWEDEN                        */
  12 /*   Thales Communication S.A.              FRANCE                        */
  13 /*   Visual Tools S.A.                      SPAIN                         */
  14 /*   Rapita Systems Ltd                     UK                            */
  15 /*   Evidence                               ITALY                         */
  16 /*                                                                        */
  17 /*   See http://www.frescor.org for a link to partners' websites          */
  18 /*                                                                        */
  19 /*          FRESCOR project (FP6/2005/IST/5-034026) is funded             */
  20 /*       in part by the European Union Sixth Framework Programme          */
  21 /*       The European Union is not liable of any use that may be          */
  22 /*       made of this code.                                               */
  23 /*                                                                        */
  24 /*                                                                        */
  25 /*  This file is part of FRSH (FRescor ScHeduler)                         */
  26 /*                                                                        */
  27 /* FRSH is free software; you can redistribute it and/or modify it        */
  28 /* under terms of the GNU General Public License as published by the      */
  29 /* Free Software Foundation; either version 2, or (at your option) any    */
  30 /* later version.  FRSH is distributed in the hope that it will be        */
  31 /* useful, but WITHOUT ANY WARRANTY; without even the implied warranty    */
  32 /* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU    */
  33 /* General Public License for more details. You should have received a    */
  34 /* copy of the GNU General Public License along with FRSH; see file       */
  35 /* COPYING. If not, write to the Free Software Foundation, 675 Mass Ave,  */
  36 /* Cambridge, MA 02139, USA.                                              */
  37 /*                                                                        */
  38 /* As a special exception, including FRSH header files in a file,         */
  39 /* instantiating FRSH generics or templates, or linking other files       */
  40 /* with FRSH objects to produce an executable application, does not       */
  41 /* by itself cause the resulting executable application to be covered     */
  42 /* by the GNU General Public License. This exception does not             */
  43 /* however invalidate any other reasons why the executable file might be  */
  44 /* covered by the GNU Public License.                                     */
  45 /**************************************************************************/
  46
  47 /**
  48  * @file   frsh_feedback.c
  49  * @author Dario Faggioli <faggioli@gandalf.sssup.it>
  50  * @date   Wed Feb 20 14:53:22 2009
  51  *
  52  * @brief  Feedback module of FRSH_FORB framework
  53  *
  54  */
  55
  56 #include <frsh_core.h>
  57 #include <fra_generic.h>
  58 #include "frsh_forb.h"
  59 #include <frsh_resources.h>
  60
  61 #ifdef CONFIG_AQUOSA
  62 #include <aqcpu_res.h>
  63 #endif
  64 #ifdef CONFIG_CPUCG
  65 #include <cpucg_res.h>
  66 #endif
  67 #ifdef CONFIG_DISKBFQ
  68 #include <diskbfq_res.h>
  69 #endif
  70
  71 static frsh_vres_id_t spare_vres;
  72
  73 int frsh_feedback_get_spare(frsh_contract_t *spare_contract)
  74 {
  75         return frsh_vres_get_contract(spare_vres, spare_contract);
  76 }
  77
  78 int frsh_feedback_set_spare
  79   (const frsh_contract_t *spare_contract)
  80 {
  81         int ret = 0;
  82         frsh_vres_id_t spare_vres;
  83
  84         if (!spare_contract || !*spare_contract)
  85                 return FRSH_ERR_BAD_ARGUMENT;
  86
  87         ret = frsh_contract_negotiate(spare_contract, &spare_vres);
  88         if (ret) return ret;
  89
  90
  91         if (spare_vres->allocator->set_spare_bandwidth) {
  92                 ret = spare_vres->allocator->set_spare_bandwidth(spare_vres);
  93         } else {
  94                 ret = FRSH_ERR_NOT_IMPLEMENTED;
  95         }
  96
  97         return ret;
  98 }
  99
 100 int frsh_feedback_get_desired_budget
 101   (frsh_vres_id_t vres_id,
 102    frsh_rel_time_t *p_budget_out)
 103 {
 104         if (vres_id->allocator->get_desired_budget) {
 105                 return vres_id->allocator->get_desired_budget(vres_id, p_budget_out);
 106         } else {
 107                 return FRSH_ERR_NOT_IMPLEMENTED;
 108         }
 109 }
 110
 111 int frsh_feedback_set_desired_budget
 112   (frsh_vres_id_t vres_id,
 113    frsh_rel_time_t *p_budget_in)
 114 {
 115         if (vres_id->allocator->set_desired_budget) {
 116                 return vres_id->allocator->set_desired_budget(vres_id, p_budget_in);
 117         } else {
 118                 return FRSH_ERR_NOT_IMPLEMENTED;
 119         }
 120 }
 121
 122 int frsh_feedback_get_actual_budget
 123   (frsh_vres_id_t vres_id,
 124    frsh_rel_time_t *budget)
 125 {
 126         if (vres_id->allocator->get_actual_budget) {
 127                 return vres_id->allocator->get_actual_budget(vres_id, budget);
 128         } else {
 129                 return FRSH_ERR_NOT_IMPLEMENTED;
 130         }
 131 }
 132