eris/eris/worker.py

107 lines
3.6 KiB
Python
Executable file

#!/usr/bin/env python3.11
import asyncio
import contextlib
import os
import signal
import sys
import fill3
import eris.tools as tools
import eris.paged_list
class Worker:
AUTOSAVE_MESSAGE = "Auto-saving…"
unsaved_jobs_total = 0
def __init__(self, compression):
self.compression = compression
self.result = None
self.process = None
self.child_pgid = None
async def create_process(self):
create = asyncio.create_subprocess_exec(
"eris-worker", stdin=asyncio.subprocess.PIPE, stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.PIPE, preexec_fn=os.setsid)
self.process = await create
pid_line = await self.process.stdout.readline()
self.child_pgid = int(pid_line.strip())
if "SNAP" not in os.environ: # Can't do setpriority inside snaps.
os.setpriority(os.PRIO_PGRP, self.child_pgid, 19)
self.process.stdin.write(f"{self.compression}\n".encode("utf-8"))
async def run_tool(self, path, tool):
while True:
self.process.stdin.write(f"{tool.__qualname__}\n{path}\n"
.encode("utf-8", "surrogatepass"))
data = await self.process.stdout.readline()
if data == b"":
await self.create_process()
else:
break
return tools.Status(int(data))
async def job_runner(self, screen, summary, log, jobs_added_event):
await self.create_process()
while True:
await jobs_added_event.wait()
while True:
try:
self.result = await summary.get_closest_placeholder()
except StopAsyncIteration:
self.result = None
break
await self.result.run(log, self)
self.result.compression = self.compression
Worker.unsaved_jobs_total += 1
if Worker.unsaved_jobs_total == 5000 and summary.is_loaded:
log.log_message(Worker.AUTOSAVE_MESSAGE)
screen.save()
summary.completed_total += 1
if summary.result_total == summary.completed_total:
log.log_message("All results are up to date.")
log.log_message(Worker.AUTOSAVE_MESSAGE)
screen.save()
if "unittest" in sys.modules:
fill3.SHUTDOWN_EVENT.set()
jobs_added_event.clear()
def kill(self):
if self.child_pgid is not None:
with contextlib.suppress(ProcessLookupError):
os.killpg(self.child_pgid, signal.SIGKILL)
def make_result_widget(text, result, compression):
appearance = fill3.str_to_appearance(text)
page_size = 500
if len(appearance) > page_size:
appearance = eris.paged_list.PagedList(
appearance, result.get_pages_dir(), page_size, cache_size=2,
exist_ok=True, open_func=tools.compression_open_func(compression))
return fill3.Fixed(appearance)
def main():
print(os.getpgid(os.getpid()), flush=True)
compression = input()
try:
while True:
tool_name, path = input(), input()
tool = getattr(tools, tool_name)
result = tools.Result(path, tool)
result.compression = compression
status, text = tools.run_tool_no_error(path, tool)
result.result = make_result_widget(text, result, compression)
print(status.value, flush=True)
except Exception:
tools.log_error()
if __name__ == "__main__":
main()