contiki/core/net/rime/rudolph0.c
matsutsuka 9d4fc0a1a8 Support for z80(sdcc) port.
In order to support, some core modules are modified as follows:

core/sys/dsc.h
- If CTK_CONF_ICONS is diabled, the whole icon-related code is disabled.
- DSC_HEADER is changed to remove extra semicolon.

core/sys/process.h
- process_data_t is expressed by void* in signatures (known bug on sdcc).

core/sys/autostart.h
- autostart_processes is changed to remove extra semicolon.

core/sys/cc.h
- CC_CONF_ASSIGN_AGGREGATE is introduced.
- CC_CONF_INC_CAST_POINTER is introduced, a workaround of a kind
  of sdcc bug for an increment.

core/net/hc.c
core/net/uip_arp.c
core/net/uaodv.c
- Aggregation assignments are changed to uip_ipaddr_copy.

core/net/psock.c
core/net/uipbuf.c
core/net/dhcpc.c
apps/shell/shell.c
core/ctk/vnc-server.c
core/ctk/vnc-out.c
- "register" keyword in a signature cannot be used in sdcc,
  CC_REGISTER_ARG is used instead.

core/net/uip-over-mesh.c
- An extra semicolon is removed.

apps/dhcp/dhcp-dsc.c
apps/shell/shell-dsc.
apps/ftp/ftp-dsc.c
apps/process-list/process-list-dsc.c
apps/email/email-dsc.c
apps/webserver/webserver-dsc.c
apps/vnc/vnc-dsc.c
apps/vnc/vnc-viewer.h
apps/webbrowser/www-dsc.c
apps/about/about-dsc.c
apps/irc/irc-dsc.c
apps/telnet/telnet-dsc.c
apps/telnetd/telnetd-dsc.c
apps/netconf/netconf-dsc.c
apps/directory/directory-dsc.c
pps/calc/calc-dsc.c
- Modify an extern type to a real declaration, which is static
  to prevent a compile error.

core/net/mac/xmac.c
- Variables cannot be defined in a head of block on sdcc.

core/ctk/ctk.h
core/ctk/ctk.c
apps/program-handler/program-handler.c
- If CTK_CONF_ICONS is diabled, the whole icon-related code is disabled.

Makefile.include
- Add a set of configuration for an assembler.
- $(CLEAN) variable is introduced for customized cleanup.

apps/process-list/process-list.c
- PROCESSLIST_CONF_HEIGHT is introduced to address smaller screen size.

core/lib/ctk-filedialog.c
- FILES_CONF_HEIGHT is introduced to address smaller screen size.
- "register" keyword in a signature cannot be used in sdcc,
  CC_REGISTER_ARG is used instead.

apps/vnc/vnc-viewer.c
- A cast is added to prevent a compile error.
- "register" keyword in a signature cannot be used in sdcc,
  CC_REGISTER_ARG is used instead.

apps/webbrowser/webclient.c
- CC_CONF_INC_CAST_POINTER is introduced, a workaround of a kind
  of sdcc bug for an increment.

core/loader/elfloader.c
- A cast is added to prevent a compile error.

core/net/rime/rimeaddr.c
- An initialization is added to prevent a compile error.

core/net/rime/rudolph0.c
- NULL is changed to 0, because NULL causes a compile error.

core/net/rime/route-discovery.c
- Add an argument to match the definition of nf_callbacks.

cpu/z80/strcasecmp.h
cpu/z80/strcasecmp.c
cpu/z80/contiki-sdcc-conf.h
cpu/z80/mtarch.c
cpu/z80/mtarch.h
cpu/z80/Makefile.z80
- New files to make compilation availble on sdcc.
- Added support for multithreading.
2007-08-30 14:39:16 +00:00

237 lines
7.4 KiB
C

/**
* \addtogroup rudolph0
* @{
*/
/*
* 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.
*
* $Id: rudolph0.c,v 1.6 2007/08/30 14:39:17 matsutsuka Exp $
*/
/**
* \file
* Rudolph0: a simple block data flooding protocol
* \author
* Adam Dunkels <adam@sics.se>
*/
#include <stddef.h> /* for offsetof */
#include "net/rime.h"
#include "net/rime/rudolph0.h"
#define STEADY_TIME CLOCK_SECOND * 2
#define DEFAULT_SEND_INTERVAL CLOCK_SECOND / 2
enum {
TYPE_DATA,
TYPE_NACK,
};
enum {
STATE_RECEIVER,
STATE_SENDER,
};
#define VERSION_LT(a, b) ((signed char)((a) - (b)) < 0)
#define DEBUG 1
#if DEBUG
#include <stdio.h>
#define PRINTF(...) printf(__VA_ARGS__)
#else
#define PRINTF(...)
#endif
/*---------------------------------------------------------------------------*/
static void
read_new_datapacket(struct rudolph0_conn *c)
{
int len = 0;
if(c->cb->read_chunk) {
len = c->cb->read_chunk(c, c->current.h.chunk * RUDOLPH0_DATASIZE,
c->current.data, RUDOLPH0_DATASIZE);
}
c->current.datalen = len;
PRINTF("read_new_datapacket len %d\n", len);
}
/*---------------------------------------------------------------------------*/
static void
send_nack(struct rudolph0_conn *c)
{
struct rudolph0_hdr *hdr;
rimebuf_clear();
rimebuf_hdralloc(sizeof(struct rudolph0_hdr));
hdr = rimebuf_hdrptr();
hdr->type = TYPE_NACK;
hdr->version = c->current.h.version;
hdr->chunk = c->current.h.chunk;
PRINTF("Sending nack for %d:%d\n", hdr->version, hdr->chunk);
polite_send(&c->nackc, c->send_interval / 2, sizeof(struct rudolph0_hdr));
}
/*---------------------------------------------------------------------------*/
static void
sent(struct sabc_conn *sabc)
{
struct rudolph0_conn *c = (struct rudolph0_conn *)sabc;
if(c->current.datalen == RUDOLPH0_DATASIZE) {
c->current.h.chunk++;
PRINTF("Sending data chunk %d next time\n", c->current.h.chunk);
read_new_datapacket(c);
} else {
sabc_set_timer(&c->c, STEADY_TIME);
PRINTF("Steady: Sending the same data chunk next time datalen %d, %d\n",
c->current.datalen, RUDOLPH0_DATASIZE);
}
}
/*---------------------------------------------------------------------------*/
static void
recv(struct sabc_conn *sabc)
{
struct rudolph0_conn *c = (struct rudolph0_conn *)sabc;
struct rudolph0_datapacket *p = rimebuf_dataptr();
if(p->h.type == TYPE_DATA) {
if(c->current.h.version != p->h.version) {
PRINTF("rudolph0 new version %d\n", p->h.version);
c->current.h.version = p->h.version;
c->current.h.chunk = 0;
c->cb->write_chunk(c, 0, RUDOLPH0_FLAG_NEWFILE, p->data, 0);
if(p->h.chunk != 0) {
send_nack(c);
} else {
c->cb->write_chunk(c, 0, RUDOLPH0_FLAG_NONE, p->data, p->datalen);
c->current.h.chunk++;
}
} else if(p->h.version == c->current.h.version) {
if(p->h.chunk == c->current.h.chunk) {
PRINTF("received chunk %d\n", p->h.chunk);
if(p->datalen < RUDOLPH0_DATASIZE) {
c->cb->write_chunk(c, c->current.h.chunk * RUDOLPH0_DATASIZE,
RUDOLPH0_FLAG_LASTCHUNK, p->data, p->datalen);
} else {
c->cb->write_chunk(c, c->current.h.chunk * RUDOLPH0_DATASIZE,
RUDOLPH0_FLAG_NONE, p->data, p->datalen);
}
c->current.h.chunk++;
} else if(p->h.chunk > c->current.h.chunk) {
PRINTF("received chunk %d > %d, sending NACK\n", p->h.chunk, c->current.h.chunk);
send_nack(c);
}
} else { /* p->h.version < c->current.h.version */
/* Ignore packets with old version */
}
}
}
/*---------------------------------------------------------------------------*/
static void
recv_nack(struct polite_conn *polite)
{
struct rudolph0_conn *c = (struct rudolph0_conn *)
((char *)polite - offsetof(struct rudolph0_conn,
nackc));
struct rudolph0_datapacket *p = rimebuf_dataptr();
if(p->h.type == TYPE_NACK && c->state == STATE_SENDER) {
if(p->h.version == c->current.h.version) {
PRINTF("Reseting chunk to %d\n", p->h.chunk);
c->current.h.chunk = p->h.chunk;
} else {
PRINTF("Wrong version, reseting chunk to 0\n");
c->current.h.chunk = 0;
}
read_new_datapacket(c);
sabc_set_timer(&c->c, c->send_interval);
}
}
/*---------------------------------------------------------------------------*/
static const struct polite_callbacks polite = { recv_nack, 0, 0 };
static const struct sabc_callbacks sabc = { recv, sent };
/*---------------------------------------------------------------------------*/
void
rudolph0_open(struct rudolph0_conn *c, u16_t channel,
const struct rudolph0_callbacks *cb)
{
sabc_open(&c->c, channel, &sabc);
polite_open(&c->nackc, channel + 1, &polite);
c->cb = cb;
c->current.h.version = 0;
c->state = STATE_RECEIVER;
c->send_interval = DEFAULT_SEND_INTERVAL;
}
/*---------------------------------------------------------------------------*/
void
rudolph0_close(struct rudolph0_conn *c)
{
sabc_close(&c->c);
polite_close(&c->nackc);
}
/*---------------------------------------------------------------------------*/
void
rudolph0_send(struct rudolph0_conn *c, clock_time_t send_interval)
{
c->state = STATE_SENDER;
c->current.h.version++;
c->current.h.version++;
c->current.h.chunk = 0;
c->current.h.type = TYPE_DATA;
read_new_datapacket(c);
rimebuf_reference(&c->current, sizeof(struct rudolph0_datapacket));
c->send_interval = send_interval;
sabc_send_stubborn(&c->c, c->send_interval);
}
/*---------------------------------------------------------------------------*/
void
rudolph0_stop(struct rudolph0_conn *c)
{
sabc_cancel(&c->c);
}
/*---------------------------------------------------------------------------*/
int
rudolph0_version(struct rudolph0_conn *c)
{
return c->current.h.version;
}
/*---------------------------------------------------------------------------*/
void
rudolph0_set_version(struct rudolph0_conn *c, int version)
{
c->current.h.version = version;
}
/*---------------------------------------------------------------------------*/
/** @} */