/* {{{ pipe_close */
static void pipe_close(pipe_t *p) {
close_descriptor(p->parent);
close_descriptor(p->child);
#ifdef WIN32
close(p->fd);
#endif
}
static void pipe_close_parent(pipe_t *p) {
/* don't close stdin */
close_descriptor(p->parent);
if (dup2(p->child, p->fd) != p->fd) {
perror("pipe_child dup2");
} else {
close_descriptor(p->child);
p->child = p->fd;
}
}
int cmd_checksum (int argc, const char** argv)
{
struct descriptor_d d;
int result = 0;
unsigned long crc = 0;
ssize_t cb;
if (argc < 2)
return ERROR_PARAM;
if ( (result = parse_descriptor (argv[1], &d))
|| (result = open_descriptor (&d))) {
printf ("Unable to open '%s'\n", argv[1]);
goto fail;
}
cb = d.length - d.index;
result = region_checksum (0, &d, regionChecksumSpinner | regionChecksumLength,
&crc);
if (result)
goto fail;
printf ("\rcrc32 0x%lx (%lu) over %d (0x%x) bytes\n", ~crc, ~crc, cb, cb);
fail:
close_descriptor (&d);
return result;
}
int main(int argc, char ** argv) {
struct timeval tv;
struct sockaddr_in saddr;
struct buffer * state_struct[FD_SETSIZE];
int len_recv = 0, r_len = 0, n_connection = 0;
// Socket ev timer
tv.tv_sec = TIME_DIFF;
tv.tv_usec = 0;
/*
Sets for reading and writing, set_r and
set_w is temporary sets in each iteration
*/
fd_set set_r, set_w, m_set_r, m_set_w;
size_t max_index = 0;
size_t s = socket(AF_INET, SOCK_STREAM, 0);
saddr.sin_family = AF_INET;
saddr.sin_port = htons(atoi(argv[1]));
saddr.sin_addr.s_addr = INADDR_ANY;
if(bind(s, (const struct sockaddr*)&saddr, sizeof(saddr)) < 0) {
printd("Error of bind socket", 0);
exit(EXIT_FAILURE);
}
if(listen(s, FD_SETSIZE) == -1) {
printd("Error of listening socket", 0);
exit(EXIT_FAILURE);
}
// Do master socket is nonblocking
set_nonblock(s);
printd("Succeed bind and listen socket server on port %i \n", atoi(argv[1]));
FD_ZERO(&m_set_r);
FD_ZERO(&m_set_w);
// For master socket use only reading set
FD_SET(s, &m_set_r);
// Set max socket index will be equal index of master socket
// and will be grow when adding clients. Instead you can use FD_SETSIZE
max_index = s;
while(1) {
memcpy(&set_r, &m_set_r, sizeof(m_set_r));
memcpy(&set_w, &m_set_w, sizeof(m_set_w));
int rc = select((max_index + 1), &set_r, &set_w, NULL, &tv);
if(rc < 0) {
printd("Error of select multiplexor", 1);
exit(EXIT_FAILURE);
}
for(int i = 0; i <= max_index; i ++) {
// Check time window with old awaiting socket
if(state_struct[i]->upset_time > 0) {
time_t ctime = clock() / CLOCKS_PER_SEC;
if(ctime - state_struct[i]->upset_time > TIME_DIFF) {
close_descriptor(i, state_struct, &m_set_w, &m_set_r);
continue;
}
}
if(FD_ISSET(i, &set_r)) {
if(i == s) {
n_connection = accept(s, NULL, NULL);
set_nonblock(n_connection);
if(n_connection < 0) {
printd("Error of accepting new connection", 0);
exit(EXIT_FAILURE);
}
// Set number new file descriptor in read/write sets
FD_SET(n_connection, &m_set_r);
FD_SET(n_connection, &m_set_w);
// Initialize state struct for peer
struct buffer data_connection;
data_connection.rdc = 0;
data_connection.rwc = 0;
data_connection.rd = malloc(BUFFER_SIZE);
// Don't use write buffer
//data_connection.wr = malloc(BUFFER_SIZE);
// Set time window
data_connection.upset_time = clock() / CLOCKS_PER_SEC;
state_struct[n_connection] = &data_connection;
if(max_index < n_connection)
max_index = n_connection;
} else {
char recv_buffer[RW_CHUNK_SIZE];
len_recv = 0;
r_len = state_struct[i]->rdc + RW_CHUNK_SIZE;
// Float chunk size
if(r_len > BUFFER_SIZE) {
r_len = (BUFFER_SIZE - state_struct[i]->rdc);
}
len_recv = read(i, &recv_buffer, r_len);
if(!len_recv && r_len) {
close_descriptor(i, state_struct, &m_set_w, &m_set_r);
} else if(len_recv == -1) {
if(errno == EAGAIN || errno == EWOULDBLOCK) {
continue;
} else {
close_descriptor(i, state_struct, &m_set_w, &m_set_r);
}
} else if(len_recv) {
state_struct[i]->upset_time = clock() / CLOCKS_PER_SEC;
// Copy data to peer buffer with offset
strncpy((state_struct[i]->rd + state_struct[i]->rdc), recv_buffer, len_recv);
state_struct[i]->rdc += len_recv;
printd(state_struct[i]->rd, 0);
printd("\n", 0);
}
}
}
if(FD_ISSET(i, &set_w)) {
if(state_struct[i]->rdc - state_struct[i]->rwc > 0) {
if(state_struct[i]->rwc < state_struct[i]->rdc) {
// Set offset from recv buffer
int w_len = state_struct[i]->rdc - state_struct[i]->rwc;
// Align write chunk
if(w_len > RW_CHUNK_SIZE) {
w_len = RW_CHUNK_SIZE;
}
size_t len_r = write(i, (state_struct[i]->rd + state_struct[i]->rwc), w_len);
if(len_r) {
state_struct[i]->rwc += w_len;
printd("Wrote %i bytes \n", state_struct[i]->rwc);
}
if(state_struct[i]->rwc == state_struct[i]->rdc) {
state_struct[i]->rdc = 0;
state_struct[i]->rwc = 0;
memset(state_struct[i]->rd, 0, BUFFER_SIZE - 1);
}
}
}
}
}
}
exit(EXIT_SUCCESS);
}
/* {{{ pipe_close */
static void pipe_close(pipe_t *p) {
close_descriptor(p->parent);
close_descriptor(p->child);
}
static void pipe_close_child(pipe_t *p) {
close_descriptor(p->child);
p->fd = p->parent;
}
static void pipe_close_child(pipe_t *p) {
close_descriptor(p->child);
p->fd = _open_osfhandle((long)p->parent,
(p->fd == 0 ? O_RDONLY : O_WRONLY)|O_BINARY);
}
ErrnoError DescriptorHolder::Close() {
DCHECK(IsValid());
return close_descriptor(fd_);
}
int cmd_dump (int argc, const char** argv)
{
struct descriptor_d d;
int result = 0;
unsigned long index;
unsigned long more;
static int width;
/* Parse arguments */
while (argc > 1 && *argv[1] == '-') {
switch (argv[1][1]) {
case '1':
case '2':
case '4':
width = argv[1][1] - '0';
break;
default:
return ERROR_PARAM;
break;
}
--argc;
++argv;
}
if (argc < 2)
return ERROR_PARAM;
if ((result = parse_descriptor (argv[1], &d))) {
printf ("Unable to open '%s'\n", argv[1]);
goto fail;
}
if (!d.length)
d.length = 16*8; /* ** FIXME: get from environment */
if ((result = open_descriptor (&d)))
goto fail;
d.width = width; /* Request I/O of the same width as display */
index = d.start;
more = index + MORE_PAGE;
/* *** FIXME: it would be a very good idea to let this function read
*** more than 16 bytes from the input stream. It might be
*** expensive to fetch the incoming data (e.g. NAND) so we'd like
*** to be friendly. That said, it might not matter much since
*** we're just showing it to the user. */
while (index < d.start + d.length) {
char __aligned rgb[16];
size_t available = sizeof (rgb);
int cb;
if (available > d.start + d.length - index)
available = d.start + d.length - index;
cb = d.driver->read (&d, rgb, available);
if (cb < 0)
goto fail;
if (cb == 0) {
result = ERROR_RESULT (ERROR_FAILURE, "premature end of input");
goto fail;
}
dumpw (rgb, cb, index, width);
index += cb;
if (index >= more && index < d.start + d.length) {
char ch;
printf (" --More-- ");
console->read (0, &ch, 1);
switch (ch) {
default:
case 'q':
case '.':
index = d.start + d.length;
break;
case '\r':
case '\n':
more = index + MORE_LINE;
break;
case ' ':
more = index + MORE_PAGE;
break;
}
printf ("\r");
}
}
printf (" \r");
fail:
close_descriptor (&d);
return result;
}
int cmd_compare (int argc, const char** argv)
{
struct descriptor_d din;
struct descriptor_d dout;
int result = 0;
ssize_t cbCompare = 0;
size_t cbTotal = 0;
int count = 1;
if (argc >= 3 && strcmp (argv[1], "-c") == 0) {
count = simple_strtoul (argv[2], NULL, 0);
argc -= 2;
argv += 2;
}
if (count <= 0)
ERROR_RETURN (ERROR_PARAM, "count must be >0");
if (argc < 3)
return ERROR_PARAM;
if ( (result = parse_descriptor (argv[1], &din))
|| (result = open_descriptor (&din))) {
printf ("Unable to open '%s'\n", argv[1]);
goto fail_early;
}
if ( (result = parse_descriptor (argv[2], &dout))
|| (result = open_descriptor (&din))) {
printf ("Unable to open '%s'\n", argv[2]);
goto fail;
}
if (!din.driver->read || !dout.driver->read) {
result = ERROR_UNSUPPORTED;
goto fail;
}
/* Make lengths the same */
cbTotal = din.length;
if (dout.length && dout.length < din.length)
cbTotal = dout.length;
din.length = cbTotal;
dout.length = cbTotal;
while (cbCompare < cbTotal && count) {
char __aligned rgbIn [512];
char __aligned rgbOut[512];
ssize_t cbIn;
ssize_t cbOut;
ssize_t cb;
cbIn = din.driver ->read (&din, rgbIn, sizeof (rgbIn));
cbOut = dout.driver->read (&dout, rgbOut, sizeof (rgbOut));
if (cbIn != cbOut) {
printf ("\rregions not the same length\n");
result = ERROR_FALSE;
goto fail;
}
for (cb = 0; cb < cbIn; ++cb) {
if (rgbIn[cb] != rgbOut[cb]) {
printf ("\rregions differ 0x%02x != 0x%02x at %d (0x%x)\n",
rgbIn[cb], rgbOut[cb], cb + cbCompare, cb + cbCompare);
result = ERROR_FALSE;
if (--count == 0)
goto fail;
}
}
cbCompare += cbIn;
}
if (result == 0)
printf ("\r%d bytes the same\n", cbCompare);
fail:
close_descriptor (&din);
close_descriptor (&dout);
fail_early:
return result;
}