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-rw-r--r--packages/meshbay-cli/src/meshbay_cli/__main__.py24
1 files changed, 23 insertions, 1 deletions
diff --git a/packages/meshbay-cli/src/meshbay_cli/__main__.py b/packages/meshbay-cli/src/meshbay_cli/__main__.py
index f5cee22..597e2fe 100644
--- a/packages/meshbay-cli/src/meshbay_cli/__main__.py
+++ b/packages/meshbay-cli/src/meshbay_cli/__main__.py
@@ -8,7 +8,9 @@ import argparse
import asyncio
import logging
import os
+import signal
import sys
+import threading
from . import __version__
from .commands import (
@@ -113,15 +115,35 @@ async def _run(args: argparse.Namespace) -> int:
await ctx.aclose()
+class _WindowsSelectorLoop(asyncio.SelectorEventLoop):
+ """
+ A selector loop that Ctrl+C wakes. Windows' select() is not interrupted by
+ a console event, and unlike the proactor (`windows_events.ProactorEventLoop.
+ run_forever`) this loop never points the signal wakeup at its self-pipe: Ctrl+C
+ waited for the next timer, which in `chat --follow` or `stream` can be half
+ a minute away (measured: 29 s on a loop whose next timer was 30 s off).
+ """
+
+ def run_forever(self):
+ if threading.current_thread() is not threading.main_thread():
+ return super().run_forever() # signals reach the main thread only
+ old = signal.set_wakeup_fd(self._csock.fileno())
+ try:
+ super().run_forever()
+ finally:
+ signal.set_wakeup_fd(old)
+
+
def loop_factory():
"""aiortc's ICE needs a selector loop: Windows' default proactor never
completes a DataChannel handshake."""
- return asyncio.SelectorEventLoop if sys.platform == "win32" else None
+ return _WindowsSelectorLoop if sys.platform == "win32" else None
def main(argv: list[str] | None = None) -> int:
argv = sys.argv[1:] if argv is None else argv
if argv[:1] == ["__complete"]:
+ _utf8_output() # what the completion scripts read
from .complete import main as complete
return complete(argv[1:])
if not argv and os.environ.get("MESHBAY_CLI_SELFTEST") == "1":