void *read_serial_packet(serial_source src, int *len)
/* Effects: Read the serial source src. If a packet is available, return it.
If in blocking mode and no packet is available, wait for one.
Returns: the packet read (in newly allocated memory), with *len is
set to the packet length, or NULL if no packet is yet available and
the serial source is in non-blocking mode
*/
{
read_and_process(src, TRUE);
for (;;)
{
struct packet_list *entry;
entry = pop_protocol_packet(src, P_PACKET_NO_ACK);
if (entry)
{
uint8_t *packet = entry->packet;
*len = entry->len;
free(entry);
return packet;
}
if (src->non_blocking && serial_source_empty(src))
return NULL;
source_wait(src, NULL);
read_and_process(src, src->non_blocking);
}
}
int write_serial_packet(serial_source src, const void *packet, int len)
/* Effects: writes len byte packet to serial source src
Returns: 0 if packet successfully written, 1 if successfully written
but not acknowledged, -1 otherwise
*/
{
struct timeval deadline;
src->send.seqno++;
if (write_framed_packet(src, P_PACKET_ACK, src->send.seqno, packet, len) < 0)
return -1;
gettimeofday(&deadline, NULL);
add_timeval(&deadline, ACK_TIMEOUT);
for (;;)
{
struct packet_list *entry;
read_and_process(src);
entry = pop_protocol_packet(src, P_ACK);
if (entry)
{
uint8_t acked = entry->packet[0];
free(entry->packet);
free(entry);
if (acked == src->send.seqno)
return 0;
}
else if (source_wait(src, &deadline) < 0)
return 1;
}
}
int main(int argc, char* argv[]) {
if (argc != 2){
printf("Usage: %s <rgb32 fits>\n",argv[0]);
return -1;
}
return read_and_process(argv[1]);
}
void YJDouyuBarrage::init_connection() {
connect(ui.m_getBarrage_pushButton, SIGNAL(clicked()), this, SLOT(ok_button_clicked()));
connect(ui.m_disconnect_pushButton, SIGNAL(clicked()), this, SLOT(disconnect_button_clicked()));
connect(m_barrage_tcp_socket, SIGNAL(readyRead()), this, SLOT(read_and_process()));
connect(m_keep_alive_timer, SIGNAL(timeout()), this, SLOT(run_keepAlive_thread()));
//connect(m_barrage_tcp_socket, SIGNAL(error()), this, SLOT(handleTcpSocketError()));
connect(m_barrage_tcp_socket, SIGNAL(connected()), this, SLOT(handleTcpSocketConnected()));
connect(m_barrage_tcp_socket, SIGNAL(disconnected()), this, SLOT(handleTcpSocketDisconnected()));
}
int main(int argc, char **argv)
{
int c;
struct client *p, *nextp;
extern void setup(), newconnection(), whatsup(struct client *p);
while ((c = getopt(argc, argv, "p:")) != EOF) {
if (c == 'p') {
if ((port = atoi(optarg)) == 0) {
fprintf(stderr, "%s: port number must be a positive integer\n", argv[0]);
return(1);
}
} else {
fprintf(stderr, "usage: %s [-p port]\n", argv[0]);
return(1);
}
}
setup(); /* aborts on error */
/* the only way the server exits is by being killed */
for (;;) {
fd_set fdlist;
int maxfd = listenfd;
FD_ZERO(&fdlist);
FD_SET(listenfd, &fdlist);
for (p = top; p; p = p->next) {
FD_SET(p->fd, &fdlist);
if (p->fd > maxfd)
maxfd = p->fd;
}
if (select(maxfd + 1, &fdlist, NULL, NULL, NULL) < 0) {
perror("select");
} else {
if (FD_ISSET(listenfd, &fdlist))
newconnection();
for (p = top; p; p = nextp) {
nextp = p->next; /* in case we remove this client because of error */
if (FD_ISSET(p->fd, &fdlist))
read_and_process(p);
}
}
}
}
void
diff_archive (void)
{
struct stat stat_data;
int name_length;
int status;
errno = EPIPE; /* FIXME: errno should be read-only */
/* FIXME: remove perrors */
set_next_block_after (current_header);
decode_header (current_header, ¤t_stat, ¤t_format, 1);
/* Print the block from `current_header' and `current_stat'. */
if (verbose_option)
{
if (now_verifying)
fprintf (stdlis, _("Verify "));
print_header ();
}
switch (current_header->header.typeflag)
{
default:
WARN ((0, 0, _("Unknown file type '%c' for %s, diffed as normal file"),
current_header->header.typeflag, current_file_name));
/* Fall through. */
case AREGTYPE:
case REGTYPE:
case GNUTYPE_SPARSE:
case CONTTYPE:
/* Appears to be a file. See if it's really a directory. */
name_length = strlen (current_file_name) - 1;
if (current_file_name[name_length] == PATHSEP)
goto really_dir;
if (!get_stat_data (&stat_data))
{
if (current_header->oldgnu_header.isextended)
skip_extended_headers ();
skip_file ((long) current_stat.st_size);
goto quit;
}
if (!S_ISREG (stat_data.st_mode))
{
report_difference (_("Not a regular file"));
skip_file ((long) current_stat.st_size);
goto quit;
}
stat_data.st_mode &= 07777;
if (stat_data.st_mode != current_stat.st_mode)
report_difference (_("Mode differs"));
#if !MSDOS && !WIN32
/* stat() in djgpp's C library gives a constant number of 42 as the
uid and gid of a file. So, comparing an FTP'ed archive just after
unpack would fail on MSDOS. */
if (stat_data.st_uid != current_stat.st_uid)
report_difference (_("Uid differs"));
if (stat_data.st_gid != current_stat.st_gid)
report_difference (_("Gid differs"));
#endif
if (stat_data.st_mtime != current_stat.st_mtime)
report_difference (_("Mod time differs"));
if (current_header->header.typeflag != GNUTYPE_SPARSE &&
stat_data.st_size != current_stat.st_size)
{
report_difference (_("Size differs"));
skip_file ((long) current_stat.st_size);
goto quit;
}
diff_handle = open (current_file_name, O_NDELAY | O_RDONLY | O_BINARY);
if (diff_handle < 0 && !absolute_names_option)
{
char *tmpbuf = xmalloc (strlen (current_file_name) + 2);
*tmpbuf = PATHSEP;
strcpy (tmpbuf + 1, current_file_name);
diff_handle = open (tmpbuf, O_NDELAY | O_RDONLY);
free (tmpbuf);
}
if (diff_handle < 0)
{
ERROR ((0, errno, _("Cannot open %s"), current_file_name));
if (current_header->oldgnu_header.isextended)
skip_extended_headers ();
skip_file ((long) current_stat.st_size);
report_difference (NULL);
goto quit;
}
/* Need to treat sparse files completely differently here. */
if (current_header->header.typeflag == GNUTYPE_SPARSE)
diff_sparse_files (current_stat.st_size);
else
{
if (multi_volume_option)
{
assign_string (&save_name, current_file_name);
save_totsize = current_stat.st_size;
/* save_sizeleft is set in read_and_process. */
}
read_and_process ((long) (current_stat.st_size), process_rawdata);
if (multi_volume_option)
assign_string (&save_name, NULL);
}
status = close (diff_handle);
if (status < 0)
ERROR ((0, errno, _("Error while closing %s"), current_file_name));
quit:
break;
#if !MSDOS
case LNKTYPE:
{
dev_t dev;
ino_t ino;
if (!get_stat_data (&stat_data))
break;
dev = stat_data.st_dev;
ino = stat_data.st_ino;
status = stat (current_link_name, &stat_data);
if (status < 0)
{
if (errno == ENOENT)
report_difference (_("Does not exist"));
else
{
WARN ((0, errno, _("Cannot stat file %s"), current_file_name));
report_difference (NULL);
}
break;
}
if (stat_data.st_dev != dev || stat_data.st_ino != ino)
{
char *message = (char *)
xmalloc (MESSAGE_BUFFER_SIZE + strlen (current_link_name));
sprintf (message, _("Not linked to %s"), current_link_name);
report_difference (message);
free (message);
break;
}
break;
}
#endif /* not MSDOS */
#ifdef S_ISLNK
case SYMTYPE:
{
char linkbuf[NAME_FIELD_SIZE + 3]; /* FIXME: may be too short. */
status = readlink (current_file_name, linkbuf, (sizeof linkbuf) - 1);
if (status < 0)
{
if (errno == ENOENT)
report_difference (_("No such file or directory"));
else
{
WARN ((0, errno, _("Cannot read link %s"), current_file_name));
report_difference (NULL);
}
break;
}
linkbuf[status] = '\0'; /* null-terminate it */
if (strncmp (current_link_name, linkbuf, (size_t) status) != 0)
report_difference (_("Symlink differs"));
break;
}
#endif /* not S_ISLNK */
#ifdef S_IFCHR
case CHRTYPE:
current_stat.st_mode |= S_IFCHR;
goto check_node;
#endif /* not S_IFCHR */
#ifdef S_IFBLK
/* If local system doesn't support block devices, use default case. */
case BLKTYPE:
current_stat.st_mode |= S_IFBLK;
goto check_node;
#endif /* not S_IFBLK */
#ifdef S_ISFIFO
/* If local system doesn't support FIFOs, use default case. */
case FIFOTYPE:
# ifdef S_IFIFO
current_stat.st_mode |= S_IFIFO;
# endif
current_stat.st_rdev = 0; /* FIXME: do we need this? */
goto check_node;
#endif /* S_ISFIFO */
check_node:
/* FIXME: deal with umask. */
if (!get_stat_data (&stat_data))
break;
if (current_stat.st_rdev != stat_data.st_rdev)
{
report_difference (_("Device numbers changed"));
break;
}
if (
#ifdef S_IFMT
current_stat.st_mode != stat_data.st_mode
#else
/* POSIX lossage. */
(current_stat.st_mode & 07777) != (stat_data.st_mode & 07777)
#endif
)
{
report_difference (_("Mode or device-type changed"));
break;
}
break;
case GNUTYPE_DUMPDIR:
{
char *dumpdir_buffer = get_directory_contents (current_file_name, 0);
if (multi_volume_option)
{
assign_string (&save_name, current_file_name);
save_totsize = current_stat.st_size;
/* save_sizeleft is set in read_and_process. */
}
if (dumpdir_buffer)
{
dumpdir_cursor = dumpdir_buffer;
read_and_process ((long) (current_stat.st_size), process_dumpdir);
free (dumpdir_buffer);
}
else
read_and_process ((long) (current_stat.st_size), process_noop);
if (multi_volume_option)
assign_string (&save_name, NULL);
/* Fall through. */
}
case DIRTYPE:
/* Check for trailing /. */
name_length = strlen (current_file_name) - 1;
really_dir:
while (name_length && current_file_name[name_length] == PATHSEP)
current_file_name[name_length--] = '\0'; /* zap / */
if (!get_stat_data (&stat_data))
break;
if (!S_ISDIR (stat_data.st_mode))
{
report_difference (_("No longer a directory"));
break;
}
if ((stat_data.st_mode & 07777) != (current_stat.st_mode & 07777))
report_difference (_("Mode differs"));
break;
case GNUTYPE_VOLHDR:
break;
case GNUTYPE_MULTIVOL:
{
off_t offset;
name_length = strlen (current_file_name) - 1;
if (current_file_name[name_length] == PATHSEP)
goto really_dir;
if (!get_stat_data (&stat_data))
break;
if (!S_ISREG (stat_data.st_mode))
{
report_difference (_("Not a regular file"));
skip_file ((long) current_stat.st_size);
break;
}
stat_data.st_mode &= 07777;
offset = from_oct (1 + 12, current_header->oldgnu_header.offset);
if (stat_data.st_size != current_stat.st_size + offset)
{
report_difference (_("Size differs"));
skip_file ((long) current_stat.st_size);
break;
}
diff_handle = open (current_file_name, O_NDELAY | O_RDONLY | O_BINARY);
if (diff_handle < 0)
{
WARN ((0, errno, _("Cannot open file %s"), current_file_name));
report_difference (NULL);
skip_file ((long) current_stat.st_size);
break;
}
status = lseek (diff_handle, offset, 0);
if (status != offset)
{
WARN ((0, errno, _("Cannot seek to %ld in file %s"),
offset, current_file_name));
report_difference (NULL);
break;
}
if (multi_volume_option)
{
assign_string (&save_name, current_file_name);
save_totsize = stat_data.st_size;
/* save_sizeleft is set in read_and_process. */
}
read_and_process ((long) (current_stat.st_size), process_rawdata);
if (multi_volume_option)
assign_string (&save_name, NULL);
status = close (diff_handle);
if (status < 0)
ERROR ((0, errno, _("Error while closing %s"), current_file_name));
break;
}
}
}
int main(int argc, char* argv[])
{
read_and_process();
return 0;
}
