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Avoid progress events flooding

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donoban 2018-10-22 21:14:43 +02:00
parent 4f52a3b62e
commit 61c6288391
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GPG Key ID: 141310D8E3ED08A5
1 changed files with 11 additions and 5 deletions
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16
qubes/backup.py
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@ -326,6 +326,8 @@ class Backup(object):
#: callback for progress reporting. Will be called with one argument
#: - progress in percents
self.progress_callback = None
self.last_progress = 0
self.last_progress_time = time.time()
#: backup ID, needs to be unique (for a given user),
#: not necessary unpredictable; automatically generated
self.backup_id = datetime.datetime.now().strftime(
@ -512,11 +514,15 @@ class Backup(object):
if not self.total_backup_bytes:
return
if callable(self.progress_callback):
progress = (
100 * (self._done_vms_bytes + self._current_vm_bytes) /
self.total_backup_bytes)
# pylint: disable=not-callable
self.progress_callback(progress)
if time.time() - self.last_progress_time >= 1: # avoid flooding
progress = (
100 * (self._done_vms_bytes + self._current_vm_bytes) /
self.total_backup_bytes)
if progress - self.last_progress >= 0.5:
self.last_progress = progress
self.last_progress_time = time.time()
# pylint: disable=not-callable
self.progress_callback(progress)
def _add_vm_progress(self, bytes_done):
self._current_vm_bytes += bytes_done