resources/dummy/frm_dummy.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                         */
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  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          */
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  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        */
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  31 /* useful, but WITHOUT ANY WARRANTY; without even the implied warranty    */
  32 /* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU    */
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  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       */
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  42 /* by the GNU General Public License. This exception does not             */
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  44 /* covered by the GNU Public License.                                     */
  45 /**************************************************************************/
  46
  47 /**
  48  * @file   frm_dummy.c
  49  * @author Michal Sojka <sojkam1@fel.cvut.cz>
  50  * @date   Wed Feb 18 16:06:04 2009
  51  *
  52  * @brief  Dummy resource manager implementation
  53  *
  54  *
  55  */
  56
  57
  58 #include <frm_generic.h>
  59 #include <forb.h>
  60 #include <error.h>
  61 #include <errno.h>
  62 #include <fres_sa_scenario.h>
  63 #include <stdbool.h>
  64 #include <ul_log.h>
  65 #include "res_dummy.h"
  66 #include <stdio.h>
  67 #include "dummy_config.h"
  68
  69 struct dummy_data {
  70         int some_data;
  71 };
  72
  73 int admission_test(struct fres_sa_scenario *scenario, void *priv, bool *schedulable)
  74 {
  75         struct dummy_data *data = priv;
  76         struct fres_sa_contract *c;
  77         int ret;
  78
  79 #ifdef CONFIG_RESOURCE_DUMMY_VERBOSE
  80         printf("Admission test:\n");
  81 #endif
  82         data->some_data++;
  83
  84         fres_sa_scenario_for_each_contract(scenario, c) {
  85                 fres_block_basic *basic;
  86                 fres_block_dummy_sched *dummy_sched;
  87                 char id[40];
  88                 fres_contract_id_to_string(id, &c->id, sizeof(id));
  89                 basic = fres_contract_get_basic(c->contract);
  90
  91                 if (c->contract == c->new) {
  92                         /* Add data for scheduler to the new contracts */
  93                         dummy_sched = malloc(sizeof(*dummy_sched));
  94                         if (!dummy_sched) return -1;
  95                         dummy_sched->priority = 100 - fosa_rel_time_to_msec(basic->budget);
  96                         ret = fres_contract_add_dummy_sched(c->contract, dummy_sched);
  97                         if (ret) {
  98                                 fprintf(stderr, "Cannpt add dummy_sched block\n");
  99                                 return -1;
 100                         }
 101                 } else {
 102                         dummy_sched = fres_contract_get_dummy_sched(c->contract);
 103                         if (!dummy_sched) {
 104                                 fprintf(stderr, "Dummy_sched is not present\n");
 105                                 return -1;
 106                         }
 107                 }
 108 #ifdef CONFIG_RESOURCE_DUMMY_VERBOSE
 109                 printf("  %s contract: id=%s, period=%ld ms, budget=%ld ms, priority=%d\n",
 110                        c->contract == c->new ? "new" : "old", id,
 111                        fosa_rel_time_to_msec(basic->period),
 112                        fosa_rel_time_to_msec(basic->budget), dummy_sched->priority);
 113 #endif
 114
 115         }
 116         *schedulable = scenario->num_contracts <= 3;
 117 #ifdef CONFIG_RESOURCE_DUMMY_VERBOSE
 118         printf("=> %s\n", *schedulable?"schedulable":"not schedulable");
 119 #endif
 120
 121         return 0;
 122 }
 123
 124 struct dummy_data dummy_data;
 125
 126 static const struct fres_res_manager frm = {
 127         .res_type = DUMMY_RESOURCE_TYPE,
 128         .res_id = DUMMY_RESOURCE_ID,
 129         .admission_test = admission_test,
 130         .priv = &dummy_data
 131 };
 132
 133
 134 int main(int argc, char *argv[])
 135 {
 136         forb_orb orb;
 137         int ret;
 138
 139         orb = forb_init(&argc, &argv, "frm_dummy");
 140         if (!orb) error(1, errno, "forb_init");
 141
 142         /* Register fres_block_dummy_sched to contract handling
 143          * functions */
 144         fres_block_register_dummy();
 145
 146 #ifndef CONFIG_RESOURCE_DUMMY_VERBOSE
 147         ulogd_frm_generic.level = UL_LOGL_ERR;
 148 #endif
 149
 150         ret = frm_register_and_run(orb, &frm);
 151
 152         if (ret != 0) {
 153                 error(1, errno, "frm_generic_run failed");
 154         }
 155
 156         return 0;
 157 }