Thanks to visit codestin.com
Credit goes to github.com

Skip to content

Restore signal.SIGINT handler between prompts #1822

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Dec 12, 2023
Merged

Restore signal.SIGINT handler between prompts #1822

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
22 changes: 22 additions & 0 deletions src/prompt_toolkit/application/application.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@
sleep,
)
from contextlib import ExitStack, contextmanager
from ctypes import c_int, c_void_p, pythonapi
from subprocess import Popen
from traceback import format_tb
from typing import (
Expand Down Expand Up @@ -102,6 +103,21 @@
_SIGTSTP = getattr(signal, "SIGTSTP", None)


# The following functions are part of the stable ABI since python 3.2
# See: https://docs.python.org/3/c-api/sys.html#c.PyOS_getsig

# PyOS_sighandler_t PyOS_getsig(int i)
pythonapi.PyOS_getsig.restype = c_void_p
pythonapi.PyOS_getsig.argtypes = (c_int,)

# PyOS_sighandler_t PyOS_setsig(int i, PyOS_sighandler_t h)
pythonapi.PyOS_setsig.restype = c_void_p
pythonapi.PyOS_setsig.argtypes = (
c_int,
c_void_p,
)


class Application(Generic[_AppResult]):
"""
The main Application class!
Expand Down Expand Up @@ -807,6 +823,10 @@ def set_is_running() -> Iterator[None]:
@contextmanager
def set_handle_sigint(loop: AbstractEventLoop) -> Iterator[None]:
if handle_sigint:
# save sigint handlers (python and os level)
# See: https://github.com/prompt-toolkit/python-prompt-toolkit/issues/1576
sigint = signal.getsignal(signal.SIGINT)
sigint_os = pythonapi.PyOS_getsig(signal.SIGINT)
loop.add_signal_handler(
signal.SIGINT,
lambda *_: loop.call_soon_threadsafe(
Expand All @@ -817,6 +837,8 @@ def set_handle_sigint(loop: AbstractEventLoop) -> Iterator[None]:
yield
finally:
loop.remove_signal_handler(signal.SIGINT)
signal.signal(signal.SIGINT, sigint)
pythonapi.PyOS_setsig(signal.SIGINT, sigint_os)
else:
yield

Expand Down