kopia lustrzana https://github.com/micropython/micropython
60 wiersze
1.5 KiB
Python
60 wiersze
1.5 KiB
Python
# Test asyncio TCP server and client using start_server() and open_connection()
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try:
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import asyncio
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except ImportError:
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print("SKIP")
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raise SystemExit
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PORT = 8000
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async def handle_connection(reader, writer):
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# Test that peername exists (but don't check its value, it changes)
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writer.get_extra_info("peername")
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data = await reader.read(11) # leaving bytes unread triggers the error
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# data = await reader.read(13) # reading everything
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print("echo:", data.replace(b"\r\n", b""))
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writer.write(data)
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await writer.drain()
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print("close")
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writer.close()
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await writer.wait_closed()
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print("done")
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ev.set()
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async def tcp_server():
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global ev
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ev = asyncio.Event()
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server = await asyncio.start_server(handle_connection, "0.0.0.0", PORT)
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print("server running")
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multitest.next()
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async with server:
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await asyncio.wait_for(ev.wait(), 10)
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async def tcp_client(message):
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reader, writer = await asyncio.open_connection(IP, PORT)
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print("write:", message.replace(b"\r\n", b""))
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writer.write(message)
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await writer.drain()
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data = await reader.read() # if the client doesn't read exactly or is fast
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# enough e.g.
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# data = await reader.read(11) # this works on unix because is
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# fast enough, however esp32 fails.
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print("read:", data.replace(b"\r\n", b""))
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def instance0():
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multitest.globals(IP=multitest.get_network_ip())
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asyncio.run(tcp_server())
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def instance1():
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multitest.next()
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asyncio.run(tcp_client(b"client data\r\n"))
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