is_slaver is to determine whether the QEMU instance is a
slaver(migration target) at runtime.
is_master is to determine whether the QEMU instance is a
master(migration starter) at runtime.
This 2 APIs will be used later.
Signed-off-by: Yang Hongyang <yanghy@xxxxxxxxxxxxxx>
---
migration-colo.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/migration-colo.c b/migration-colo.c
index 802f8b0..2699e77 100644
--- a/migration-colo.c
+++ b/migration-colo.c
@@ -187,6 +187,12 @@ static const QEMUFileOps colo_read_ops = {
/* save */
+static __attribute__((unused)) bool is_master(void)
+{
+ MigrationState *s = migrate_get_current();
+ return (s->state == MIG_STATE_COLO);
+}
+
static void *colo_thread(void *opaque)
{
MigrationState *s = opaque;
@@ -275,6 +281,11 @@ void colo_init_checkpointer(MigrationState *s)
static Coroutine *colo;
+static __attribute__((unused)) bool is_slave(void)
+{
+ return colo != NULL;
+}
+
/*
* return:
* 0: start a checkpoint
--
1.9.1
--
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