mirror of
https://github.com/sunnypilot/sunnypilot.git
synced 2026-09-03 12:33:44 +08:00
royjr
45 lines
1.1 KiB
Python
45 lines
1.1 KiB
Python
import os
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from openpilot.common.file_chunker import open_file_chunked, get_existing_chunks
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from openpilot.common.params import Params
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PARAM = "UsbGpuLoadProgress"
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class ProgressReader:
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def __init__(self, inner, total):
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self._inner = inner
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self._total = total
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self._params = Params()
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self._read = 0
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self._pct = -1
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self._step = max(64 * 1024, total // 100)
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def _bump(self, n):
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self._read += n
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if self._total:
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pct = min(100, self._read * 100 // self._total)
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if pct != self._pct:
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self._pct = pct
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self._params.put(PARAM, pct)
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def read(self, size=-1):
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data = self._inner.read(size)
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self._bump(len(data))
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return data
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def readinto(self, b):
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view = memoryview(b)
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done = 0
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while done < len(view):
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n = self._inner.readinto(view[done:done + self._step])
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if not n:
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break
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done += n
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self._bump(n)
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return done
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def open_with_progress(pkl_path):
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total = sum(os.path.getsize(p) for p in get_existing_chunks(pkl_path))
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return ProgressReader(open_file_chunked(pkl_path), total)
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