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import os
from asyncio import get_event_loop, sleep, subprocess
from posixpath import join
from tempfile import mkdtemp
from plugin_protocol import PluginProtocolServer
class BinaryPlugin:
def __init__(self, plugin_directory, file_name, flags, logger) -> None:
self.server = PluginProtocolServer(self)
self.connection = None
self.process = None
self.flags = flags
self.logger = logger
self.plugin_directory = plugin_directory
self.file_name = file_name
async def start(self):
if self.connection and self.connection.is_serving:
self.connection.close()
self.unix_socket_path = BinaryPlugin.generate_socket_path()
self.logger.debug(f"starting unix server on {self.unix_socket_path}")
self.connection = await get_event_loop().create_unix_server(lambda: self.server, path=self.unix_socket_path)
env = dict(DECKY_PLUGIN_SOCKET = self.unix_socket_path)
self.process = await subprocess.create_subprocess_exec(join(self.plugin_directory, self.file_name), env=env)
get_event_loop().create_task(self.process_loop())
async def stop(self):
self.stopped = True
if self.connection and self.connection.is_serving:
self.connection.close()
if self.process and self.process.is_alive:
self.process.terminate()
async def process_loop(self):
await self.process.wait()
if not self.stopped:
self.logger.info("backend process was killed - restarting in 10 seconds")
await sleep(10)
await self.start()
def generate_socket_path():
tmp_dir = mkdtemp("decky-plugin")
os.chown(tmp_dir, 1000, 1000)
return join(tmp_dir, "socket")
# called on the server/loader process
async def call_method(self, method_name, method_args):
if self.process.returncode == None:
return dict(success = False, result = "Process not alive")
return await self.server.call_method(method_name, method_args)
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