migration: cpr_is_incoming

Define the cpr_is_incoming helper, to be used in several cpr fix patches.

Signed-off-by: Steve Sistare <[email protected]>
Reviewed-by: Peter Xu <[email protected]>
Reviewed-by: Fabiano Rosas <[email protected]>
Message-ID: <[email protected]>
Signed-off-by: Fabiano Rosas <[email protected]>

Author: Steve Sistare

include/migration/cpr.h

@@ -21,6 +21,7 @@ int cpr_find_fd(const char *name, int id);
 
 MigMode cpr_get_incoming_mode(void);
 void cpr_set_incoming_mode(MigMode mode);
+bool cpr_is_incoming(void);
 
 int cpr_state_save(MigrationChannel *channel, Error **errp);
 int cpr_state_load(MigrationChannel *channel, Error **errp);

migration/cpr.c

@@ -128,6 +128,11 @@ void cpr_set_incoming_mode(MigMode mode)
     incoming_mode = mode;
 }
 
+bool cpr_is_incoming(void)
+{
+    return incoming_mode != MIG_MODE_NONE;
+}
+
 int cpr_state_save(MigrationChannel *channel, Error **errp)
 {
     int ret;