int _read_netstream(NetStream_t *ns, tbuffer_t *buffer, int boff, int size, Net_timeout_t timeout, int dolock)
{
int total_bytes, i;
tbuffer_t ns_tb;
if (size == 0) return(0);
if (dolock == 1) lock_read_ns(ns);
if (ns->sock_status(ns->sock) != 1) {
log_printf(15, "read_netstream: Dead connection! ns=%d\n", ns->id);
if (dolock == 1) unlock_read_ns(ns);
return(-1);
}
total_bytes = 0;
if (ns_read_chksum_state(ns) == 1) { //** We have chksumming enabled
if (size > ns->read_chksum.bytesleft) {
size = ns->read_chksum.bytesleft; //** Truncate at the block
}
}
//*** 1st grab anything currently in the network buffer ***
if (ns->end >= ns->start) {
i = ns->end - ns->start + 1;
if (i>size) {
total_bytes = size;
tbuffer_single(&ns_tb, size, &(ns->buffer[ns->start]));
tbuffer_copy(&ns_tb, 0, buffer, boff, size, 1);
ns->start = ns->start + total_bytes;
} else {
total_bytes = i;
tbuffer_single(&ns_tb, i, &(ns->buffer[ns->start]));
tbuffer_copy(&ns_tb, 0, buffer, boff, i, 1);
ns->start = 0;
ns->end = -1;
}
} else { //*** Now grab some data off the network port ****
total_bytes = ns->read(ns->sock, buffer, boff, size, timeout);
}
debug_code(
if (total_bytes > 0) {
// debug_printf(10, "read_netstream: Command : !");
// for (i=0; i< total_bytes; i++) debug_printf(10, "%c", buffer[i]);
// debug_printf(10, "! * nbytes =%d\n", total_bytes); flush_debug();
} else if (total_bytes == 0) {
debug_printf(10, "read_netstream: No data!\n");
} else {
log_printf(10, "read_netstream: Dead connection! ns=%d\n", ns_getid(ns));
}
)
void unlock_ns(tbx_ns_t *ns)
{
unlock_write_ns(ns);
unlock_read_ns(ns);
}
void unlock_ns(NetStream_t *ns)
{
unlock_write_ns(ns);
unlock_read_ns(ns);
}
