Convert atexit users to exit_notifier

All of these users have global state so we really don't see a benefit from
exit_notifier.  However, using exit_notifier means that there's one less
justification for having global state in the first place.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 9 insertions, 2 deletions

diff --git a/qemu-char.c b/qemu-char.c
index a3d6e64967..c02dfae43a 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -713,9 +713,15 @@ static void term_exit(void)
     fcntl(0, F_SETFL, old_fd0_flags);
 }
 
+static void term_exit_notifier(Notifier *notifier)
+{
+    term_exit();
+}
+
 static void term_init(QemuOpts *opts)
 {
     struct termios tty;
+    static Notifier exit_notifier = { .notify = term_exit_notifier };
 
     tcgetattr (0, &tty);
     oldtty = tty;
@@ -735,8 +741,9 @@ static void term_init(QemuOpts *opts)
 
     tcsetattr (0, TCSANOW, &tty);
 
-    if (!term_atexit_done++)
-        atexit(term_exit);
+    if (!term_atexit_done++) {
+        exit_notifier_add(&exit_notifier);
+    }
 
     fcntl(0, F_SETFL, O_NONBLOCK);
 }