forked from NG-SD-Plugins/PowerTools
36 lines
1.1 KiB
Python
36 lines
1.1 KiB
Python
import pathlib
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import subprocess
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import asyncio
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import os
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HOME_DIR = str(pathlib.Path(os.getcwd()).parent.parent.resolve())
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PARENT_DIR = str(pathlib.Path(__file__).parent.resolve())
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class Plugin:
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backend_proc = None
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# Asyncio-compatible long-running code, executed in a task when the plugin is loaded
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async def _main(self):
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# startup
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print("PowerTools starting...")
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env_proc = dict(os.environ)
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if "LD_LIBRARY_PATH" in env_proc:
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env_proc["LD_LIBRARY_PATH"] += ":"+PARENT_DIR+"/bin"
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else:
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env_proc["LD_LIBRARY_PATH"] = ":"+PARENT_DIR+"/bin"
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self.backend_proc = subprocess.Popen(
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[PARENT_DIR + "/bin/backend"],
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env = env_proc)
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while True:
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await asyncio.sleep(1)
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async def _unload(self):
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# shutdown
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print("PowerTools unloading...")
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if self.backend_proc is not None:
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self.backend_proc.terminate()
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try:
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self.backend_proc.wait(timeout=5) # 5 seconds timeout
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except subprocess.TimeoutExpired:
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self.backend_proc.kill()
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self.backend_proc = None
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