[downloader/fragment] Move helper data to context dict

This commit is contained in:
Sergey M․ 2016-01-13 00:00:31 +06:00
parent 16a348475c
commit b83b782dc4
1 changed files with 14 additions and 11 deletions

View File

@ -58,14 +58,17 @@ class FragmentFD(FileDownloader):
'frag_count': total_frags, 'frag_count': total_frags,
'filename': ctx['filename'], 'filename': ctx['filename'],
'tmpfilename': ctx['tmpfilename'], 'tmpfilename': ctx['tmpfilename'],
}
start = time.time()
ctx.update({
'started': start,
# Total complete fragments downloaded so far in bytes # Total complete fragments downloaded so far in bytes
'_complete_frags_downloaded_bytes': 0, 'complete_frags_downloaded_bytes': 0,
# Amount of fragment's bytes downloaded by the time of the previous # Amount of fragment's bytes downloaded by the time of the previous
# frag progress hook invocation # frag progress hook invocation
'_prev_frag_downloaded_bytes': 0, 'prev_frag_downloaded_bytes': 0,
} })
start = time.time()
ctx['started'] = start
def frag_progress_hook(s): def frag_progress_hook(s):
if s['status'] not in ('downloading', 'finished'): if s['status'] not in ('downloading', 'finished'):
@ -74,7 +77,7 @@ class FragmentFD(FileDownloader):
frag_total_bytes = s.get('total_bytes') or 0 frag_total_bytes = s.get('total_bytes') or 0
estimated_size = ( estimated_size = (
(state['_complete_frags_downloaded_bytes'] + frag_total_bytes) / (ctx['complete_frags_downloaded_bytes'] + frag_total_bytes) /
(state['frag_index'] + 1) * total_frags) (state['frag_index'] + 1) * total_frags)
time_now = time.time() time_now = time.time()
state['total_bytes_estimate'] = estimated_size state['total_bytes_estimate'] = estimated_size
@ -82,17 +85,17 @@ class FragmentFD(FileDownloader):
if s['status'] == 'finished': if s['status'] == 'finished':
state['frag_index'] += 1 state['frag_index'] += 1
state['downloaded_bytes'] += frag_total_bytes - state['_prev_frag_downloaded_bytes'] state['downloaded_bytes'] += frag_total_bytes - ctx['prev_frag_downloaded_bytes']
state['_complete_frags_downloaded_bytes'] = state['downloaded_bytes'] ctx['complete_frags_downloaded_bytes'] = state['downloaded_bytes']
state['_prev_frag_downloaded_bytes'] = 0 ctx['prev_frag_downloaded_bytes'] = 0
else: else:
frag_downloaded_bytes = s['downloaded_bytes'] frag_downloaded_bytes = s['downloaded_bytes']
state['downloaded_bytes'] += frag_downloaded_bytes - state['_prev_frag_downloaded_bytes'] state['downloaded_bytes'] += frag_downloaded_bytes - ctx['prev_frag_downloaded_bytes']
state['eta'] = self.calc_eta( state['eta'] = self.calc_eta(
start, time_now, estimated_size, start, time_now, estimated_size,
state['downloaded_bytes']) state['downloaded_bytes'])
state['speed'] = s.get('speed') state['speed'] = s.get('speed')
state['_prev_frag_downloaded_bytes'] = frag_downloaded_bytes ctx['prev_frag_downloaded_bytes'] = frag_downloaded_bytes
self._hook_progress(state) self._hook_progress(state)
ctx['dl'].add_progress_hook(frag_progress_hook) ctx['dl'].add_progress_hook(frag_progress_hook)