26 lines
750 B
Python
26 lines
750 B
Python
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# Memory efficient file transfer
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#
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# Copyright 2021 (c) Erik de Lange
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# Released under MIT license
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_buffer = bytearray(512) # adjust size to your systems available memory
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_bmview = memoryview(_buffer) # reuse pre-allocated _buffer
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def sendfile(conn, filename):
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""" Send a file to a connection in chunks - lowering memory usage.
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:param socket conn: connection to send the file content to
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:param str filename: name of file the send
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"""
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try:
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with open(filename, "rb") as fp:
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while True:
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n = fp.readinto(_buffer)
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if n == 0:
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break
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conn.write(_bmview[:n])
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except:
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print(f"WEB:File {filename} not found")
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