diff options
Diffstat (limited to 'extras/mini-os/lib/sys.c')
| -rw-r--r-- | extras/mini-os/lib/sys.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/extras/mini-os/lib/sys.c b/extras/mini-os/lib/sys.c index 7c5f05cd41..12395bf730 100644 --- a/extras/mini-os/lib/sys.c +++ b/extras/mini-os/lib/sys.c @@ -677,7 +677,7 @@ static int select_poll(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exce { int i, n = 0; #ifdef HAVE_LWIP - int sock_n, sock_nfds = 0; + int sock_n = 0, sock_nfds = 0; fd_set sock_readfds, sock_writefds, sock_exceptfds; struct timeval timeout = { .tv_sec = 0, .tv_usec = 0}; #endif @@ -711,12 +711,14 @@ static int select_poll(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exce } } } - DEBUG("lwip_select("); - dump_set(nfds, &sock_readfds, &sock_writefds, &sock_exceptfds, &timeout); - DEBUG("); -> "); - sock_n = lwip_select(sock_nfds, &sock_readfds, &sock_writefds, &sock_exceptfds, &timeout); - dump_set(nfds, &sock_readfds, &sock_writefds, &sock_exceptfds, &timeout); - DEBUG("\n"); + if (sock_nfds > 0) { + DEBUG("lwip_select("); + dump_set(nfds, &sock_readfds, &sock_writefds, &sock_exceptfds, &timeout); + DEBUG("); -> "); + sock_n = lwip_select(sock_nfds, &sock_readfds, &sock_writefds, &sock_exceptfds, &timeout); + dump_set(nfds, &sock_readfds, &sock_writefds, &sock_exceptfds, &timeout); + DEBUG("\n"); + } #endif /* Then see others as well. */ |