static int emwin_sync_wx14_msg(int fd){
/*
* The strategy here is the same as in the function
*
* emwin_sync_serial()
*
* above
*/
struct emwin_packet ep;
int status = 0;
int i = 0;
wx14_init(&g.wx14msg);
status = wx14_init_emwin_block(fd, g.readtimeout_s, g.readtimeout_retry,
&g.wx14msg);
/*
* Reuse "g.readtimeout_retry" here
*/
while((i <= g.readtimeout_retry) && (status == 0)){
status = get_emwin_packet_wx14_msg(fd, &ep);
if(status != WX14_ERROR_EMWIN_FILL_PACKET)
break;
else {
wx14_init(&g.wx14msg);
status = wx14_init_emwin_block(fd, g.readtimeout_s, g.readtimeout_retry,
&g.wx14msg);
}
++i;
}
return(status);
}
static int process_packets(struct emwin_server *emserver){
int status;
int skip = 0;
struct emwin_packet ep;
int server_fd = emserver->fd;
if(server_type_wx14_msg_device(emserver))
status = get_emwin_packet_wx14_msg(server_fd, &ep);
else if(server_type_wx14_raw_device(emserver))
status = get_emwin_packet_wx14_raw(server_fd, &ep);
else if(server_type_serial_device(emserver))
status = get_emwin_packet_serial(server_fd, &ep);
else
status = get_emwin_packet_bb(server_fd, &ep);
update_emwin_server_stats(status);
if(write_emwin_server_stats(g.emwinstatusfile) != 0)
log_err2("Error writing status file", g.emwinstatusfile);
if(server_type_wx14_msg_device(emserver)){
if(status == -1)
log_err2("Error reading packet from WX14 msg device:", emserver->ip);
else if(status != 0)
log_errx("Error [%d] reading packet from WX14 msg device:",
status, emserver->ip);
else {
if(wx14_signalstatus_write(g.wx14_signal_statusfile, &g.wx14msg) != 0)
log_err2("Error writing wx14 file", g.wx14_signal_statusfile);
if(wx14_signalstatus_log(g.wx14_signal_logfile, &g.wx14msg) != 0)
log_err2("Error writing wx14 file", g.wx14_signal_logfile);
}
} else {
/*
* This applies to both the wx14 raw device and a serial device
*
* server_type_wx14_raw_device(emserver)
* server_type_serial_device(emserver)
*/
if(status == -1)
log_err2("Error reading packet from", emserver->ip);
else if(status == -2)
log_errx("Timedout trying to get packet from %s.", emserver->ip);
else if(status == -3)
log_info("Connection closed by %s.", emserver->ip);
else if(status == 1)
log_errx("Short read from %s.", emserver->ip);
else if(status == 2)
log_errx("Error in header format or unrecognized packet type.");
else if(status == 3)
log_errx("Checksum error.");
else if(status == 4)
log_errx("Check file name error: %s", ep.header.filename);
else if(status != 0)
log_errx("Cannot process packet: unknown error from get_emwin_packet()");
}
if(status != 0)
return(status);
/*
* Sends the packet to the queues for retransmission to the clients.
*/
if(g.f_server_enabled == 1)
(void)server_send_client_queues(&ep);
if(ep.bbtype == BB_PACKET_TYPE_SRVLIST){
status = save_server_list(&ep);
if(status != 0)
log_err("Error saving the server list.");
else
log_info("Received the server list.");
return(0);
}
/*
* Handle and save the data packet.
*/
if(ep.header.blockno == 1){
/*
* Only the first block needs to be checked because, if the file
* is rejected, it is not inserted in the queue and subsequent blocks
* will be discarded.
* "filename" is the product name and the extension; e.g.,
* cfwsjupr.txt
*/
skip = exec_filter(ep.header.filename);
if(skip == 1){
log_verbose(1, "Prefilter is rejecting %s.", ep.header.filename);
return(0);
}
}
log_verbose(1, "Received: %s (%d of %d)",
ep.header.filename, ep.header.blockno, ep.header.numblocks);
status = save_emwin_packet(&ep);
if(status == -1)
log_err2("Error saving", ep.header.filename);
else
log_verbose(1, "Saved: %s (%d of %d)",
ep.header.filename, ep.header.blockno, ep.header.numblocks);
if(status == 0)
++g.packet_count;
return(status);
}
