40 lines
1.0 KiB
Python
40 lines
1.0 KiB
Python
# -*- coding: utf-8 -*-
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import os
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from cursor import Cursor
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class File(object):
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def __init__(self, path, base, index, size, fmap, piece_size, client):
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self._client = client
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self.path = path
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self.base = base
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self.index = index
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self.size = size
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self.piece_size = piece_size
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self.full_path = os.path.join(base, path)
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self.first_piece = fmap.piece
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self.offset = fmap.start
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self.last_piece = self.first_piece + max((size - 1 + fmap.start), 0) // piece_size
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self.cursor = None
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def create_cursor(self, offset=None):
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self.cursor = Cursor(self)
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if offset:
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self.cursor.seek(offset)
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return self.cursor
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def map_piece(self, ofs):
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return self.first_piece + (ofs + self.offset) // self.piece_size, (ofs + self.offset) % self.piece_size
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def update_piece(self, n, data):
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if self.cursor:
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self.cursor.update_piece(n, data)
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def __str__(self):
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return self.path
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