159 lines
4.2 KiB
C
159 lines
4.2 KiB
C
/*
|
|
* Copyright (c) 2007, Swedish Institute of Computer Science
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* This file is part of the Contiki operating system.
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* \file
|
|
* Header for Deluge.
|
|
* \author
|
|
* Nicolas Tsiftes <nvt@sics.se>
|
|
*/
|
|
|
|
#ifndef DELUGE_H
|
|
#define DELUGE_H
|
|
|
|
#include "net/rime/rime.h"
|
|
|
|
PROCESS_NAME(deluge_process);
|
|
|
|
#define LONG_TIMER(et, counter, time) \
|
|
do { \
|
|
for (counter = 0; counter < time; counter++) { \
|
|
etimer_set(&et, CLOCK_SECOND); \
|
|
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et)); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define DELUGE_UNICAST_CHANNEL 55
|
|
#define DELUGE_BROADCAST_CHANNEL 56
|
|
|
|
/* All the packets in a page have been received. */
|
|
#define PAGE_COMPLETE 1
|
|
/* All pages up to, and including, this page are complete. */
|
|
#define PAGE_AVAILABLE 1
|
|
|
|
#define S_PKT 64 /* Deluge packet size. */
|
|
#define N_PKT 4 /* Packets per page. */
|
|
#define S_PAGE (S_PKT * N_PKT) /* Fixed page size. */
|
|
|
|
/* Bounds for the round time in seconds. */
|
|
#define T_LOW 2
|
|
#define T_HIGH 64
|
|
|
|
/* Random interval for request transmissions in jiffies. */
|
|
#define T_R (CLOCK_SECOND * 2)
|
|
|
|
/* Bound for the number of advertisements. */
|
|
#define CONST_K 1
|
|
|
|
/* The number of pages in this object. */
|
|
#define OBJECT_PAGE_COUNT(obj) (((obj).size + (S_PAGE - 1)) / S_PAGE)
|
|
|
|
#define ALL_PACKETS ((1 << N_PKT) - 1)
|
|
|
|
#define DELUGE_CMD_SUMMARY 1
|
|
#define DELUGE_CMD_REQUEST 2
|
|
#define DELUGE_CMD_PACKET 3
|
|
#define DELUGE_CMD_PROFILE 4
|
|
|
|
#define DELUGE_STATE_MAINTAIN 1
|
|
#define DELUGE_STATE_RX 2
|
|
#define DELUGE_STATE_TX 3
|
|
|
|
#define CONST_LAMBDA 2
|
|
#define CONST_ALPHA 0.5
|
|
|
|
#define CONST_OMEGA 8
|
|
#define ESTIMATED_TX_TIME (CLOCK_SECOND)
|
|
|
|
typedef uint8_t deluge_object_id_t;
|
|
|
|
struct deluge_msg_summary {
|
|
uint8_t cmd;
|
|
uint8_t version;
|
|
uint8_t highest_available;
|
|
deluge_object_id_t object_id;
|
|
};
|
|
|
|
struct deluge_msg_request {
|
|
uint8_t cmd;
|
|
uint8_t version;
|
|
uint8_t pagenum;
|
|
uint8_t request_set;
|
|
deluge_object_id_t object_id;
|
|
};
|
|
|
|
struct deluge_msg_packet {
|
|
uint8_t cmd;
|
|
uint8_t version;
|
|
uint8_t pagenum;
|
|
uint8_t packetnum;
|
|
uint16_t crc;
|
|
deluge_object_id_t object_id;
|
|
unsigned char payload[S_PKT];
|
|
};
|
|
|
|
struct deluge_msg_profile {
|
|
uint8_t cmd;
|
|
uint8_t version;
|
|
uint8_t npages;
|
|
deluge_object_id_t object_id;
|
|
uint8_t version_vector[];
|
|
};
|
|
|
|
struct deluge_object {
|
|
char *filename;
|
|
uint16_t object_id;
|
|
uint16_t size;
|
|
uint8_t version;
|
|
uint8_t update_version;
|
|
struct deluge_page *pages;
|
|
uint8_t current_rx_page;
|
|
int8_t current_tx_page;
|
|
uint8_t nrequests;
|
|
uint8_t current_page[S_PAGE];
|
|
uint8_t tx_set;
|
|
int cfs_fd;
|
|
rimeaddr_t summary_from;
|
|
};
|
|
|
|
struct deluge_page {
|
|
uint32_t packet_set;
|
|
uint16_t crc;
|
|
clock_time_t last_request;
|
|
clock_time_t last_data;
|
|
uint8_t flags;
|
|
uint8_t version;
|
|
};
|
|
|
|
int deluge_disseminate(char *file, unsigned version);
|
|
|
|
#endif
|