/*---------------------------------------------------------------------*/
static
PT_THREAD(recv_tcpthread(struct pt *pt))
{
PT_BEGIN(pt);
/* Read the header. */
PT_WAIT_UNTIL(pt, uip_newdata() && uip_datalen() > 0);
if(uip_datalen() < sizeof(struct codeprop_tcphdr)) {
PRINTF(("codeprop: header not found in first tcp segment\n"));
uip_abort();
goto thread_done;
}
s.len = uip_htons(((struct codeprop_tcphdr *)uip_appdata)->len);
s.addr = 0;
uip_appdata += sizeof(struct codeprop_tcphdr);
uip_len -= sizeof(struct codeprop_tcphdr);
xmem_erase(XMEM_ERASE_UNIT_SIZE, EEPROMFS_ADDR_CODEPROP);
/* Read the rest of the data. */
do {
if(uip_len > 0) {
xmem_pwrite(uip_appdata, uip_len, EEPROMFS_ADDR_CODEPROP + s.addr);
s.addr += uip_len;
}
if(s.addr < s.len) {
PT_YIELD_UNTIL(pt, uip_newdata());
}
} while(s.addr < s.len);
/* Kill old program. */
elfloader_unload();
/* Link, load, and start new program. */
int s;
static char msg[30 + 10];
s = elfloader_load(EEPROMFS_ADDR_CODEPROP);
if (s == ELFLOADER_OK)
sprintf(msg, "ok\n");
else
sprintf(msg, "err %d %s\n", s, elfloader_unknown);
/* Return "ok" message. */
do {
s = strlen(msg);
uip_send(msg, s);
PT_WAIT_UNTIL(pt, uip_acked() || uip_rexmit() || uip_closed());
} while(uip_rexmit());
/* Close the connection. */
uip_close();
thread_done:;
PT_END(pt);
}
void elfexec_destroy(struct elfexec *holder) {
if (holder->priv_cookie) {
exec_stop(holder->priv_cookie);
exec_destroy(holder->priv_cookie);
}
if (holder->pd != NULL) {
elfloader_unload(holder->pd);
}
object_free_token(holder->cspace); // TODO: recursively free this first?
object_free_token(holder->page_directory);
holder->page_directory = holder->cspace = NULL;
holder->priv_cookie = 0;
holder->pd = NULL;
}
/*---------------------------------------------------------------------*/
PROCESS_THREAD(codeprop_process, ev, data)
{
PROCESS_BEGIN();
s.id = 0/*random_rand()*/;
send_time = CLOCK_SECOND/4;
PT_INIT(&s.udpthread_pt);
PT_INIT(&s.recv_udpthread_pt);
tcp_listen(HTONS(CODEPROP_DATA_PORT));
udp_conn = udp_broadcast_new(HTONS(CODEPROP_DATA_PORT), NULL);
codeprop_event_quit = process_alloc_event();
s.state = STATE_NONE;
s.received = 0;
s.addr = 0;
s.len = 0;
while(1) {
PROCESS_YIELD();
if(ev == EVENT_START_PROGRAM) {
/* First kill old program. */
elfloader_unload();
elfloader_load(EEPROMFS_ADDR_CODEPROP);
} else if(ev == tcpip_event) {
uipcall(data);
} else if(ev == PROCESS_EVENT_TIMER) {
tcpip_poll_udp(udp_conn);
}
}
PROCESS_END();
}
