entrouter-line 0.1.2

Zero-loss cross-region packet relay network
Documentation 
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# Copyright 2026 John A Keeney - Entrouter
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""Simple relay test: connect to local TCP edge, send 100 chunks of 1KB, measure what arrives."""
import socket, time, sys, struct

HOST = '127.0.0.1'
PORT = 8443
LABEL = sys.argv[1] if len(sys.argv) > 1 else 'NODE'

sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
sock.connect((HOST, PORT))
print(f'[{LABEL}] connected')

# Send 100 x 1KB chunks with seq numbers, 10ms apart
total_sent = 0
for i in range(100):
    data = struct.pack('<I', i) + b'X' * 1020
    sock.sendall(data)
    total_sent += 1024
    time.sleep(0.01)

print(f'[{LABEL}] sent {total_sent} bytes ({total_sent//1024} chunks)')

# Now receive for 10 seconds
sock.settimeout(10.0)
rx_bytes = 0
rx_chunks = 0
try:
    while True:
        data = sock.recv(65536)
        if not data:
            break
        rx_bytes += len(data)
        rx_chunks += 1
except socket.timeout:
    pass

print(f'[{LABEL}] received {rx_bytes} bytes in {rx_chunks} recvs')
sock.close()
print(f'[{LABEL}] done')