diff options
Diffstat (limited to 'savevm.c')
| -rw-r--r-- | savevm.c | 39 |
1 files changed, 21 insertions, 18 deletions
@@ -1504,6 +1504,7 @@ int qemu_savevm_state_begin(Monitor *mon, QEMUFile *f, int blk_enable, int shared) { SaveStateEntry *se; + int ret; QTAILQ_FOREACH(se, &savevm_handlers, entry) { if(se->set_params == NULL) { @@ -1535,15 +1536,21 @@ int qemu_savevm_state_begin(Monitor *mon, QEMUFile *f, int blk_enable, 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; @@ -1566,16 +1573,14 @@ int qemu_savevm_state_iterate(Monitor *mon, QEMUFile *f) 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) @@ -1618,10 +1623,7 @@ 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) @@ -1661,8 +1663,9 @@ static int qemu_savevm_state(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(); |