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| 680 | trimarchi | 1 | /* |
| 2 | * Project: S.Ha.R.K. |
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| 3 | * |
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| 4 | * Coordinators: |
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| 5 | * Giorgio Buttazzo <giorgio@sssup.it> |
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| 6 | * Paolo Gai <pj@gandalf.sssup.it> |
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| 7 | * |
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| 8 | * Authors : |
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| 9 | * Giacomo Guidi <giacomo@gandalf.sssup.it> |
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| 10 | * Michael Trimarchi <trimarchi@gandalf.sssup.it> |
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| 11 | * (see the web pages for full authors list) |
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| 12 | * |
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| 13 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
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| 14 | * |
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| 15 | * http://www.sssup.it |
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| 16 | * http://retis.sssup.it |
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| 17 | * http://shark.sssup.it |
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| 18 | */ |
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| 19 | |||
| 20 | /* |
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| 21 | * Copyright (C) 2002 Paolo Gai |
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| 22 | * |
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| 23 | * This program is free software; you can redistribute it and/or modify |
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| 24 | * it under the terms of the GNU General Public License as published by |
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| 25 | * the Free Software Foundation; either version 2 of the License, or |
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| 26 | * (at your option) any later version. |
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| 27 | * |
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| 28 | * This program is distributed in the hope that it will be useful, |
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| 29 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 30 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 31 | * GNU General Public License for more details. |
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| 32 | * |
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| 33 | * You should have received a copy of the GNU General Public License |
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| 34 | * along with this program; if not, write to the Free Software |
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| 35 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 36 | * |
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| 37 | */ |
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| 38 | |||
| 39 | |||
| 40 | #ifndef __FSF_SERVICE_TASK_H__ |
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| 41 | #define __FSF_SERVICE_TASK_H__ |
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| 42 | |||
| 866 | trimarchi | 43 | |
| 44 | typedef struct { |
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| 45 | fsf_server_id_t server; |
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| 46 | TIME actual_period; |
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| 47 | TIME actual_budget; |
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| 48 | int Qs; // quality of service |
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| 49 | int Is; // importance of service |
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| 50 | bandwidth_t U; // actual bandwidth |
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| 51 | bandwidth_t Umin; // min bandwidth |
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| 52 | bandwidth_t Umax; // max bandwidth |
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| 908 | trimarchi | 53 | TIME Cmax; |
| 866 | trimarchi | 54 | TIME Cmin; |
| 55 | TIME Tmin; |
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| 56 | TIME Tmax; |
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| 57 | TIME deadline; |
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| 58 | bool d_equals_t; |
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| 59 | } server_elem; |
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| 60 | |||
| 61 | |||
| 680 | trimarchi | 62 | extern server_elem server_list[FSF_MAX_N_SERVERS]; |
| 63 | extern int current_server; |
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| 64 | extern bandwidth_t fsf_max_bw; |
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| 65 | |||
| 866 | trimarchi | 66 | TASK service_task(void); |
| 680 | trimarchi | 67 | |
| 68 | int negotiate_contract |
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| 69 | (const fsf_contract_parameters_t *contract, |
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| 70 | fsf_server_id_t *server); |
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| 71 | |||
| 72 | int renegotiate_contract |
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| 73 | (const fsf_contract_parameters_t *contract, |
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| 74 | fsf_server_id_t server); |
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| 75 | |||
| 689 | trimarchi | 76 | int adjust_SERVER_budget |
| 77 | (int budget, const TIME budget_actual, |
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| 78 | const TIME period_actual, const TIME dline_actual); |
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| 680 | trimarchi | 79 | |
| 689 | trimarchi | 80 | int set_SERVER_budget_from_contract |
| 81 | (const fsf_contract_parameters_t *contract, |
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| 82 | int *budget); |
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| 83 | |||
| 84 | int relink_contract_to_server(const fsf_contract_parameters_t *contract, |
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| 85 | fsf_server_id_t server); |
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| 86 | |||
| 87 | int link_contract_to_server(const fsf_contract_parameters_t *contract, |
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| 88 | fsf_server_id_t server); |
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| 89 | |||
| 90 | int add_contract(const fsf_contract_parameters_t *contract); |
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| 91 | |||
| 680 | trimarchi | 92 | #endif |