qemu_set_nonblock() does some event registration with the main loop on
win32, let's have a callback.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
 slirp/libslirp.h | 2 ++
 net/slirp.c      | 1 +
 slirp/misc.c     | 2 +-
 slirp/tcp_subr.c | 4 ++--
 4 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/slirp/libslirp.h b/slirp/libslirp.h
index 3e75dadfa3..e79a2d2b11 100644
--- a/slirp/libslirp.h
+++ b/slirp/libslirp.h
@@ -27,6 +27,8 @@ typedef struct SlirpCb {
     void (*timer_free)(void *timer);
     /* Modify a timer to expire at @expire_time */
     void (*timer_mod)(void *timer, int64_t expire_time);
+    /* Put a fd in nonblocking mode and register it for future polling */
+    void (*set_nonblock)(int fd);
 } SlirpCb;
 
 
diff --git a/net/slirp.c b/net/slirp.c
index f7cdf8398b..a31193a25a 100644
--- a/net/slirp.c
+++ b/net/slirp.c
@@ -193,6 +193,7 @@ static const SlirpCb slirp_cb = {
     .timer_new = net_slirp_timer_new,
     .timer_free = net_slirp_timer_free,
     .timer_mod = net_slirp_timer_mod,
+    .set_nonblock = qemu_set_nonblock,
 };
 
 static int net_slirp_init(NetClientState *peer, const char *model,
diff --git a/slirp/misc.c b/slirp/misc.c
index f9b2c64541..7789cefefa 100644
--- a/slirp/misc.c
+++ b/slirp/misc.c
@@ -172,7 +172,7 @@ fork_exec(struct socket *so, const char *ex)
     socket_set_fast_reuse(so->s);
     opt = 1;
     qemu_setsockopt(so->s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int));
-    qemu_set_nonblock(so->s);
+    so->slirp->cb->set_nonblock(so->s);
     return 1;
 }
 #endif
diff --git a/slirp/tcp_subr.c b/slirp/tcp_subr.c
index 5dcf979c3c..3b15148187 100644
--- a/slirp/tcp_subr.c
+++ b/slirp/tcp_subr.c
@@ -412,7 +412,7 @@ int tcp_fconnect(struct socket *so, unsigned short af)
     int opt, s=so->s;
     struct sockaddr_storage addr;
 
-    qemu_set_nonblock(s);
+    so->slirp->cb->set_nonblock(s);
     socket_set_fast_reuse(s);
     opt = 1;
     qemu_setsockopt(s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(opt));
@@ -484,7 +484,7 @@ void tcp_connect(struct socket *inso)
         tcp_close(sototcpcb(so)); /* This will sofree() as well */
         return;
     }
-    qemu_set_nonblock(s);
+    so->slirp->cb->set_nonblock(s);
     socket_set_fast_reuse(s);
     opt = 1;
     qemu_setsockopt(s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int));
-- 
2.20.0.rc1