replay: make has_unread_data a bool

For clarity given it only has two states.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231211091346.14616-9-alex.bennee@linaro.org>

replay/replay-internal.c

@@ -179,7 +179,7 @@ void replay_fetch_data_kind(void)
                 replay_state.instruction_count = replay_get_dword();
             }
             replay_check_error();
-            replay_state.has_unread_data = 1;
+            replay_state.has_unread_data = true;
             if (replay_state.data_kind >= EVENT_COUNT) {
                 error_report("Replay: unknown event kind %d",
                              replay_state.data_kind);
@@ -191,7 +191,7 @@ void replay_fetch_data_kind(void)
 
 void replay_finish_event(void)
 {
-    replay_state.has_unread_data = 0;
+    replay_state.has_unread_data = false;
     replay_fetch_data_kind();
 }
 

replay/replay-internal.h

@@ -75,7 +75,7 @@ enum ReplayEvents {
  * @current_icount: number of processed instructions
  * @instruction_count: number of instructions until next event
  * @data_kind: current event
- * @has_unread_data: 1 if event not yet processed
+ * @has_unread_data: true if event not yet processed
  * @file_offset: offset into replay log at replay snapshot
  * @block_request_id: current serialised block request id
  * @read_event_id: current async read event id
@@ -85,7 +85,7 @@ typedef struct ReplayState {
     uint64_t current_icount;
     int instruction_count;
     unsigned int data_kind;
-    unsigned int has_unread_data;
+    bool has_unread_data;
     uint64_t file_offset;
     uint64_t block_request_id;
     uint64_t read_event_id;

replay/replay-snapshot.c

@@ -47,8 +47,8 @@ static int replay_post_load(void *opaque, int version_id)
 
 static const VMStateDescription vmstate_replay = {
     .name = "replay",
-    .version_id = 2,
-    .minimum_version_id = 2,
+    .version_id = 3,
+    .minimum_version_id = 3,
     .pre_save = replay_pre_save,
     .post_load = replay_post_load,
     .fields = (const VMStateField[]) {
@@ -56,7 +56,7 @@ static const VMStateDescription vmstate_replay = {
         VMSTATE_UINT64(current_icount, ReplayState),
         VMSTATE_INT32(instruction_count, ReplayState),
         VMSTATE_UINT32(data_kind, ReplayState),
-        VMSTATE_UINT32(has_unread_data, ReplayState),
+        VMSTATE_BOOL(has_unread_data, ReplayState),
         VMSTATE_UINT64(file_offset, ReplayState),
         VMSTATE_UINT64(block_request_id, ReplayState),
         VMSTATE_UINT64(read_event_id, ReplayState),