char: use an enum for CHR_EVENT

This may help to catch unhandled cases, and avoid having to maintain
numbering.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022100951.19562-3-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/include/sysemu/char.h b/include/sysemu/char.h
index 43da4ac89d0daaeb89d955f91ce1a969b519daa0..de0d99b3c229a28dc386ac5de6d93fb1435251e0 100644 (file)
--- a/include/sysemu/char.h
+++ b/include/sysemu/char.h
@@ -13,11 +13,13 @@
 
 /* character device */
 
-#define CHR_EVENT_BREAK   0 /* serial break char */
-#define CHR_EVENT_OPENED  2 /* new connection established */
-#define CHR_EVENT_MUX_IN  3 /* mux-focus was set to this terminal */
-#define CHR_EVENT_MUX_OUT 4 /* mux-focus will move on */
-#define CHR_EVENT_CLOSED  5 /* connection closed */
+typedef enum {
+    CHR_EVENT_BREAK, /* serial break char */
+    CHR_EVENT_OPENED, /* new connection established */
+    CHR_EVENT_MUX_IN, /* mux-focus was set to this terminal */
+    CHR_EVENT_MUX_OUT, /* mux-focus will move on */
+    CHR_EVENT_CLOSED /* connection closed */
+} QEMUChrEvent;
 
 
 #define CHR_IOCTL_SERIAL_SET_PARAMS   1