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Removed Deluge and associated test files.

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This commit is contained in:
Nicolas Tsiftes 2016-04-21 13:24:16 +02:00
parent 7586195b79
commit fb5f0f66dd
12 changed files with 540 additions and 1668 deletions
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1
apps/deluge/Makefile.deluge
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deluge_src = deluge.c

698
apps/deluge/deluge.c
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/*
* 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
* An implementation of the Deluge protocol.
* (Hui and Culler: The dynamic behavior of a data
* dissemination protocol for network programming at scale,
* ACM SenSys 2004)
* \author
* Nicolas Tsiftes <nvt@sics.se>
*/
#include "contiki.h"
#include "net/rime/rime.h"
#include "cfs/cfs.h"
#include "loader/elfloader.h"
#include "lib/crc16.h"
#include "lib/random.h"
#include "sys/node-id.h"
#include "deluge.h"
#if NETSIM
#include "ether.h"
#include <stdio.h>
#endif
#include "dev/leds.h"
#include <stdlib.h>
#include <string.h>
#define DEBUG 0
#if DEBUG
#include <stdio.h>
#define PRINTF(...) printf(__VA_ARGS__)
#else
#define PRINTF(...)
#endif
/* Implementation-specific variables. */
static struct broadcast_conn deluge_broadcast;
static struct unicast_conn deluge_uc;
static struct deluge_object current_object;
static process_event_t deluge_event;
/* Deluge variables. */
static int deluge_state;
static int old_summary;
static int neighbor_inconsistency;
static unsigned r_interval;
static unsigned recv_adv;
static int broadcast_profile;
/* Deluge timers. */
static struct ctimer rx_timer;
static struct ctimer tx_timer;
static struct ctimer summary_timer;
static struct ctimer profile_timer;
/* Deluge objects will get an ID that defaults to the current value of
the next_object_id parameter. */
static deluge_object_id_t next_object_id;
/* Rime callbacks. */
static void broadcast_recv(struct broadcast_conn *, const linkaddr_t *);
static void unicast_recv(struct unicast_conn *, const linkaddr_t *);
static const struct broadcast_callbacks broadcast_call = {broadcast_recv, NULL};
static const struct unicast_callbacks unicast_call = {unicast_recv, NULL};
/* The Deluge process manages the main Deluge timer. */
PROCESS(deluge_process, "Deluge");
static void
transition(int state)
{
if(state != deluge_state) {
switch(deluge_state) {
case DELUGE_STATE_MAINTAIN:
ctimer_stop(&summary_timer);
ctimer_stop(&profile_timer);
break;
case DELUGE_STATE_RX:
ctimer_stop(&rx_timer);
break;
case DELUGE_STATE_TX:
ctimer_stop(&tx_timer);
break;
}
deluge_state = state;
}
}
static int
write_page(struct deluge_object *obj, unsigned pagenum, unsigned char *data)
{
cfs_offset_t offset;
offset = pagenum * S_PAGE;
if(cfs_seek(obj->cfs_fd, offset, CFS_SEEK_SET) != offset) {
return -1;
}
return cfs_write(obj->cfs_fd, (char *)data, S_PAGE);
}
static int
read_page(struct deluge_object *obj, unsigned pagenum, unsigned char *buf)
{
cfs_offset_t offset;
offset = pagenum * S_PAGE;
if(cfs_seek(obj->cfs_fd, offset, CFS_SEEK_SET) != offset) {
return -1;
}
return cfs_read(obj->cfs_fd, (char *)buf, S_PAGE);
}
static void
init_page(struct deluge_object *obj, int pagenum, int have)
{
struct deluge_page *page;
unsigned char buf[S_PAGE];
page = &obj->pages[pagenum];
page->flags = 0;
page->last_request = 0;
page->last_data = 0;
if(have) {
page->version = obj->version;
page->packet_set = ALL_PACKETS;
page->flags |= PAGE_COMPLETE;
read_page(obj, pagenum, buf);
page->crc = crc16_data(buf, S_PAGE, 0);
} else {
page->version = 0;
page->packet_set = 0;
}
}
static cfs_offset_t
file_size(const char *file)
{
int fd;
cfs_offset_t size;
fd = cfs_open(file, CFS_READ);
if(fd < 0) {
return (cfs_offset_t)-1;
}
size = cfs_seek(fd, 0, CFS_SEEK_END);
cfs_close(fd);
return size;
}
static int
init_object(struct deluge_object *obj, char *filename, unsigned version)
{
static struct deluge_page *page;
int i;
obj->cfs_fd = cfs_open(filename, CFS_READ | CFS_WRITE);
if(obj->cfs_fd < 0) {
return -1;
}
obj->filename = filename;
obj->object_id = next_object_id++;
obj->size = file_size(filename);
obj->version = obj->update_version = version;
obj->current_rx_page = 0;
obj->nrequests = 0;
obj->tx_set = 0;
obj->pages = malloc(OBJECT_PAGE_COUNT(*obj) * sizeof(*obj->pages));
if(obj->pages == NULL) {
cfs_close(obj->cfs_fd);
return -1;
}
for(i = 0; i < OBJECT_PAGE_COUNT(current_object); i++) {
page = &current_object.pages[i];
init_page(&current_object, i, 1);
}
memset(obj->current_page, 0, sizeof(obj->current_page));
return 0;
}
static int
highest_available_page(struct deluge_object *obj)
{
int i;
for(i = 0; i < OBJECT_PAGE_COUNT(*obj); i++) {
if(!(obj->pages[i].flags & PAGE_COMPLETE)) {
break;
}
}
return i;
}
static void
send_request(void *arg)
{
struct deluge_object *obj;
struct deluge_msg_request request;
obj = (struct deluge_object *)arg;
request.cmd = DELUGE_CMD_REQUEST;
request.pagenum = obj->current_rx_page;
request.version = obj->pages[request.pagenum].version;
request.request_set = ~obj->pages[obj->current_rx_page].packet_set;
request.object_id = obj->object_id;
PRINTF("Sending request for page %d, version %u, request_set %u\n",
request.pagenum, request.version, request.request_set);
packetbuf_copyfrom(&request, sizeof(request));
unicast_send(&deluge_uc, &obj->summary_from);
/* Deluge R.2 */
if(++obj->nrequests == CONST_LAMBDA) {
/* XXX check rate here too. */
obj->nrequests = 0;
transition(DELUGE_STATE_MAINTAIN);
} else {
ctimer_reset(&rx_timer);
}
}
static void
advertise_summary(struct deluge_object *obj)
{
struct deluge_msg_summary summary;
if(recv_adv >= CONST_K) {
ctimer_stop(&summary_timer);
return;
}
summary.cmd = DELUGE_CMD_SUMMARY;
summary.version = obj->update_version;
summary.highest_available = highest_available_page(obj);
summary.object_id = obj->object_id;
PRINTF("Advertising summary for object id %u: version=%u, available=%u\n",
(unsigned)obj->object_id, summary.version, summary.highest_available);
packetbuf_copyfrom(&summary, sizeof(summary));
broadcast_send(&deluge_broadcast);
}
static void
handle_summary(struct deluge_msg_summary *msg, const linkaddr_t *sender)
{
int highest_available, i;
clock_time_t oldest_request, oldest_data, now;
struct deluge_page *page;
highest_available = highest_available_page(&current_object);
if(msg->version != current_object.version ||
msg->highest_available != highest_available) {
neighbor_inconsistency = 1;
} else {
recv_adv++;
}
if(msg->version < current_object.version) {
old_summary = 1;
broadcast_profile = 1;
}
/* Deluge M.5 */
if(msg->version == current_object.update_version &&
msg->highest_available > highest_available) {
if(msg->highest_available > OBJECT_PAGE_COUNT(current_object)) {
PRINTF("Error: highest available is above object page count!\n");
return;
}
oldest_request = oldest_data = now = clock_time();
for(i = 0; i < msg->highest_available; i++) {
page = &current_object.pages[i];
if(page->last_request < oldest_request) {
oldest_request = page->last_request;
}
if(page->last_request < oldest_data) {
oldest_data = page->last_data;
}
}
if(((now - oldest_request) / CLOCK_SECOND) <= 2 * r_interval ||
((now - oldest_data) / CLOCK_SECOND) <= r_interval) {
return;
}
linkaddr_copy(&current_object.summary_from, sender);
transition(DELUGE_STATE_RX);
if(ctimer_expired(&rx_timer)) {
ctimer_set(&rx_timer,
CONST_OMEGA * ESTIMATED_TX_TIME + ((unsigned)random_rand() % T_R),
send_request, &current_object);
}
}
}
static void
send_page(struct deluge_object *obj, unsigned pagenum)
{
unsigned char buf[S_PAGE];
struct deluge_msg_packet pkt;
unsigned char *cp;
pkt.cmd = DELUGE_CMD_PACKET;
pkt.pagenum = pagenum;
pkt.version = obj->pages[pagenum].version;
pkt.packetnum = 0;
pkt.object_id = obj->object_id;
pkt.crc = 0;
read_page(obj, pagenum, buf);
/* Divide the page into packets and send them one at a time. */
for(cp = buf; cp + S_PKT <= (unsigned char *)&buf[S_PAGE]; cp += S_PKT) {
if(obj->tx_set & (1 << pkt.packetnum)) {
pkt.crc = crc16_data(cp, S_PKT, 0);
memcpy(pkt.payload, cp, S_PKT);
packetbuf_copyfrom(&pkt, sizeof(pkt));
broadcast_send(&deluge_broadcast);
}
pkt.packetnum++;
}
obj->tx_set = 0;
}
static void
tx_callback(void *arg)
{
struct deluge_object *obj;
obj = (struct deluge_object *)arg;
if(obj->current_tx_page >= 0 && obj->tx_set) {
send_page(obj, obj->current_tx_page);
/* Deluge T.2. */
if(obj->tx_set) {
packetbuf_set_attr(PACKETBUF_ATTR_PACKET_TYPE,
PACKETBUF_ATTR_PACKET_TYPE_STREAM);
ctimer_reset(&tx_timer);
} else {
packetbuf_set_attr(PACKETBUF_ATTR_PACKET_TYPE,
PACKETBUF_ATTR_PACKET_TYPE_STREAM_END);
obj->current_tx_page = -1;
transition(DELUGE_STATE_MAINTAIN);
}
}
}
static void
handle_request(struct deluge_msg_request *msg)
{
int highest_available;
if(msg->pagenum >= OBJECT_PAGE_COUNT(current_object)) {
return;
}
if(msg->version != current_object.version) {
neighbor_inconsistency = 1;
}
highest_available = highest_available_page(&current_object);
/* Deluge M.6 */
if(msg->version == current_object.version &&
msg->pagenum <= highest_available) {
current_object.pages[msg->pagenum].last_request = clock_time();
/* Deluge T.1 */
if(msg->pagenum == current_object.current_tx_page) {
current_object.tx_set |= msg->request_set;
} else {
current_object.current_tx_page = msg->pagenum;
current_object.tx_set = msg->request_set;
}
transition(DELUGE_STATE_TX);
ctimer_set(&tx_timer, CLOCK_SECOND, tx_callback, &current_object);
}
}
static void
handle_packet(struct deluge_msg_packet *msg)
{
struct deluge_page *page;
uint16_t crc;
struct deluge_msg_packet packet;
memcpy(&packet, msg, sizeof(packet));
PRINTF("Incoming packet for object id %u, version %u, page %u, packet num %u!\n",
(unsigned)packet.object_id, (unsigned)packet.version,
(unsigned)packet.pagenum, (unsigned)packet.packetnum);
if(packet.pagenum != current_object.current_rx_page) {
return;
}
if(packet.version != current_object.version) {
neighbor_inconsistency = 1;
}
page = &current_object.pages[packet.pagenum];
if(packet.version == page->version && !(page->flags & PAGE_COMPLETE)) {
memcpy(&current_object.current_page[S_PKT * packet.packetnum],
packet.payload, S_PKT);
crc = crc16_data(packet.payload, S_PKT, 0);
if(packet.crc != crc) {
PRINTF("packet crc: %hu, calculated crc: %hu\n", packet.crc, crc);
return;
}
page->last_data = clock_time();
page->packet_set |= (1 << packet.packetnum);
if(page->packet_set == ALL_PACKETS) {
/* This is the last packet of the requested page; stop streaming. */
packetbuf_set_attr(PACKETBUF_ATTR_PACKET_TYPE,
PACKETBUF_ATTR_PACKET_TYPE_STREAM_END);
write_page(&current_object, packet.pagenum, current_object.current_page);
page->version = packet.version;
page->flags = PAGE_COMPLETE;
PRINTF("Page %u completed\n", packet.pagenum);
current_object.current_rx_page++;
if(packet.pagenum == OBJECT_PAGE_COUNT(current_object) - 1) {
current_object.version = current_object.update_version;
leds_on(LEDS_RED);
PRINTF("Update completed for object %u, version %u\n",
(unsigned)current_object.object_id, packet.version);
} else if(current_object.current_rx_page < OBJECT_PAGE_COUNT(current_object)) {
if(ctimer_expired(&rx_timer)) {
ctimer_set(&rx_timer,
CONST_OMEGA * ESTIMATED_TX_TIME + (random_rand() % T_R),
send_request, &current_object);
}
}
/* Deluge R.3 */
transition(DELUGE_STATE_MAINTAIN);
} else {
/* More packets to come. Put lower layers in streaming mode. */
packetbuf_set_attr(PACKETBUF_ATTR_PACKET_TYPE,
PACKETBUF_ATTR_PACKET_TYPE_STREAM);
}
}
}
static void
send_profile(struct deluge_object *obj)
{
struct deluge_msg_profile *msg;
unsigned char buf[sizeof(*msg) + OBJECT_PAGE_COUNT(*obj)];
int i;
if(broadcast_profile && recv_adv < CONST_K) {
broadcast_profile = 0;
msg = (struct deluge_msg_profile *)buf;
msg->cmd = DELUGE_CMD_PROFILE;
msg->version = obj->version;
msg->npages = OBJECT_PAGE_COUNT(*obj);
msg->object_id = obj->object_id;
for(i = 0; i < msg->npages; i++) {
msg->version_vector[i] = obj->pages[i].version;
}
packetbuf_copyfrom(buf, sizeof(buf));
broadcast_send(&deluge_broadcast);
}
}
static void
handle_profile(struct deluge_msg_profile *msg)
{
int i;
int npages;
struct deluge_object *obj;
char *p;
obj = &current_object;
if(msg->version <= current_object.update_version) {
return;
}
PRINTF("Received profile of version %u with a vector of %u pages.\n",
msg->version, msg->npages);
leds_off(LEDS_RED);
current_object.tx_set = 0;
npages = OBJECT_PAGE_COUNT(*obj);
obj->size = msg->npages * S_PAGE;
p = malloc(OBJECT_PAGE_COUNT(*obj) * sizeof(*obj->pages));
if(p == NULL) {
PRINTF("Failed to reallocate memory for pages!\n");
return;
}
memcpy(p, obj->pages, npages * sizeof(*obj->pages));
free(obj->pages);
obj->pages = (struct deluge_page *)p;
if(msg->npages < npages) {
npages = msg->npages;
}
for(i = 0; i < npages; i++) {
if(msg->version_vector[i] > obj->pages[i].version) {
obj->pages[i].packet_set = 0;
obj->pages[i].flags &= ~PAGE_COMPLETE;
obj->pages[i].version = msg->version_vector[i];
}
}
for(; i < msg->npages; i++) {
init_page(obj, i, 0);
}
obj->current_rx_page = highest_available_page(obj);
obj->update_version = msg->version;
transition(DELUGE_STATE_RX);
ctimer_set(&rx_timer,
CONST_OMEGA * ESTIMATED_TX_TIME + ((unsigned)random_rand() % T_R),
send_request, obj);
}
static void
command_dispatcher(const linkaddr_t *sender)
{
char *msg;
int len;
struct deluge_msg_profile *profile;
msg = packetbuf_dataptr();
len = packetbuf_datalen();
if(len < 1)
return;
switch(msg[0]) {
case DELUGE_CMD_SUMMARY:
if(len >= sizeof(struct deluge_msg_summary))
handle_summary((struct deluge_msg_summary *)msg, sender);
break;
case DELUGE_CMD_REQUEST:
if(len >= sizeof(struct deluge_msg_request))
handle_request((struct deluge_msg_request *)msg);
break;
case DELUGE_CMD_PACKET:
if(len >= sizeof(struct deluge_msg_packet))
handle_packet((struct deluge_msg_packet *)msg);
break;
case DELUGE_CMD_PROFILE:
profile = (struct deluge_msg_profile *)msg;
if(len >= sizeof(*profile) &&
len >= sizeof(*profile) + profile->npages * profile->version_vector[0])
handle_profile((struct deluge_msg_profile *)msg);
break;
default:
PRINTF("Incoming packet with unknown command: %d\n", msg[0]);
}
}
static void
unicast_recv(struct unicast_conn *c, const linkaddr_t *sender)
{
command_dispatcher(sender);
}
static void
broadcast_recv(struct broadcast_conn *c, const linkaddr_t *sender)
{
command_dispatcher(sender);
}
int
deluge_disseminate(char *file, unsigned version)
{
/* This implementation disseminates at most one object. */
if(next_object_id > 0 || init_object(&current_object, file, version) < 0) {
return -1;
}
process_start(&deluge_process, (void *)file);
return 0;
}
PROCESS_THREAD(deluge_process, ev, data)
{
static struct etimer et;
static unsigned time_counter;
static unsigned r_rand;
PROCESS_EXITHANDLER(goto exit);
PROCESS_BEGIN();
deluge_event = process_alloc_event();
broadcast_open(&deluge_broadcast, DELUGE_BROADCAST_CHANNEL, &broadcast_call);
unicast_open(&deluge_uc, DELUGE_UNICAST_CHANNEL, &unicast_call);
r_interval = T_LOW;
PRINTF("Maintaining state for object %s of %d pages\n",
current_object.filename, OBJECT_PAGE_COUNT(current_object));
deluge_state = DELUGE_STATE_MAINTAIN;
for(r_interval = T_LOW;;) {
if(neighbor_inconsistency) {
/* Deluge M.2 */
r_interval = T_LOW;
neighbor_inconsistency = 0;
} else {
/* Deluge M.3 */
r_interval = (2 * r_interval >= T_HIGH) ? T_HIGH : 2 * r_interval;
}
r_rand = r_interval / 2 + ((unsigned)random_rand() % (r_interval / 2));
recv_adv = 0;
old_summary = 0;
/* Deluge M.1 */
ctimer_set(&summary_timer, r_rand * CLOCK_SECOND,
(void *)(void *)advertise_summary, &current_object);
/* Deluge M.4 */
ctimer_set(&profile_timer, r_rand * CLOCK_SECOND,
(void *)(void *)send_profile, &current_object);
LONG_TIMER(et, time_counter, r_interval);
}
exit:
unicast_close(&deluge_uc);
broadcast_close(&deluge_broadcast);
if(current_object.cfs_fd >= 0) {
cfs_close(current_object.cfs_fd);
}
if(current_object.pages != NULL) {
free(current_object.pages);
}
PROCESS_END();
}

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apps/deluge/deluge.h
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/*
* 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;
linkaddr_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