void migrate_fd_put_ready(void *opaque)
{
FdMigrationState *s = opaque;
+ int ret;
if (s->state != MIG_STATE_ACTIVE) {
DPRINTF("put_ready returning because of non-active state\n");
}
DPRINTF("iterate\n");
- if (qemu_savevm_state_iterate(s->mon, s->file) == 1) {
+ ret = qemu_savevm_state_iterate(s->mon, s->file);
+ if (ret < 0) {
+ migrate_fd_error(s);
+ } else if (ret == 1) {
int old_vm_running = runstate_is_running();
DPRINTF("done iterating\n");
int shared)
{
SaveStateEntry *se;
+ int ret;
QTAILQ_FOREACH(se, &savevm_handlers, entry) {
if(se->set_params == NULL) {
se->save_live_state(mon, f, QEMU_VM_SECTION_START, se->opaque);
}
-
- if (qemu_file_has_error(f)) {
+ ret = qemu_file_has_error(f);
+ if (ret != 0) {
qemu_savevm_state_cancel(mon, f);
- return -EIO;
}
- return 0;
+ return ret;
+
}
+/*
+ * this funtion has three return values:
+ * negative: there was one error, and we have -errno.
+ * 0 : We haven't finished, caller have to go again
+ * 1 : We have finished, we can go to complete phase
+ */
int qemu_savevm_state_iterate(Monitor *mon, QEMUFile *f)
{
SaveStateEntry *se;
break;
}
}
-
- if (ret)
- return 1;
-
- if (qemu_file_has_error(f)) {
+ if (ret != 0) {
+ return ret;
+ }
+ ret = qemu_file_has_error(f);
+ if (ret != 0) {
qemu_savevm_state_cancel(mon, f);
- return -EIO;
}
-
- return 0;
+ return ret;
}
int qemu_savevm_state_complete(Monitor *mon, QEMUFile *f)
qemu_put_byte(f, QEMU_VM_EOF);
- if (qemu_file_has_error(f))
- return -EIO;
-
- return 0;
+ return qemu_file_has_error(f);
}
void qemu_savevm_state_cancel(Monitor *mon, QEMUFile *f)
ret = qemu_savevm_state_complete(mon, f);
out:
- if (qemu_file_has_error(f))
- ret = -EIO;
+ if (ret == 0) {
+ ret = qemu_file_has_error(f);
+ }
if (!ret && saved_vm_running)
vm_start();