tools: Use real async.c instead of stubs

It's wrong to call BHs directly, even in tools. The only operations that
schedule BHs are called in a loop that (indirectly) contains a call to
qemu_bh_poll anyway, so we're not losing the scheduled BHs: Tools either use
synchronous functions, which are guaranteed to have completed (including any
BHs) when they return; or if they use asynchronous functions, they need to call
qemu_aio_wait() or similar functions already today.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>

1 files changed, 4 insertions, 43 deletions

diff --git a/qemu-tool.c b/qemu-tool.c
index 392e1c9505..d45840de28 100644
--- a/qemu-tool.c
+++ b/qemu-tool.c
@@ -56,53 +56,10 @@ void monitor_print_filename(Monitor *mon, const char *filename)
 {
 }
 
-void async_context_push(void)
-{
-}
-
-void async_context_pop(void)
-{
-}
-
-int get_async_context_id(void)
-{
-    return 0;
-}
-
 void monitor_protocol_event(MonitorEvent event, QObject *data)
 {
 }
 
-QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque)
-{
-    QEMUBH *bh;
-
-    bh = qemu_malloc(sizeof(*bh));
-    bh->cb = cb;
-    bh->opaque = opaque;
-
-    return bh;
-}
-
-int qemu_bh_poll(void)
-{
-    return 0;
-}
-
-void qemu_bh_schedule(QEMUBH *bh)
-{
-    bh->cb(bh->opaque);
-}
-
-void qemu_bh_cancel(QEMUBH *bh)
-{
-}
-
-void qemu_bh_delete(QEMUBH *bh)
-{
-    qemu_free(bh);
-}
-
 int qemu_set_fd_handler2(int fd,
                          IOCanReadHandler *fd_read_poll,
                          IOHandler *fd_read,
@@ -111,3 +68,7 @@ int qemu_set_fd_handler2(int fd,
 {
     return 0;
 }
+
+void qemu_notify_event(void)
+{
+}