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#!/usr/bin/env python3
import contextlib
import os
import random
import socket
import subprocess
procs = []
procmax = 2
s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
with contextlib.suppress(FileNotFoundError):
os.unlink('socket')
s.bind(b'socket')
s.listen(0)
while True:
client, _ = s.accept()
line = client.recv(1024)
if not line.endswith(b'\n'):
client.close()
continue
filename = line.rstrip()
client.close()
print('running for filename {}'.format(filename))
p = subprocess.Popen("sleep {} && echo ffmpeg {}"
.format(random.randint(1, 10), filename), shell=True)
procs.append(p)
if len(procs) >= procmax:
os.wait()
procs = list(p for p in procs if p.poll() is not None)
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