diff options
author | TW <tw@waldmann-edv.de> | 2024-03-29 14:08:44 +0100 |
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committer | GitHub <noreply@github.com> | 2024-03-29 14:08:44 +0100 |
commit | 59e3a02a4035772202f725f0b625a49ec25411a8 (patch) | |
tree | d0b9f1f213afff06648dc7340f973a4453148353 | |
parent | f001aaa3e1e612950d6847173c9bfada9cea9343 (diff) | |
parent | caba23faec99c94a0039fc52a08f37031c7ad1cc (diff) |
Merge pull request #8162 from ThomasWaldmann/debounce-sigint-1.2
fix Ctrl-C / SIGINT behaviour for pyinstaller-made binaries, fixes #8155 (1.2-maint)
-rw-r--r-- | src/borg/helpers/process.py | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/src/borg/helpers/process.py b/src/borg/helpers/process.py index 3dd19c7a4..785f191cb 100644 --- a/src/borg/helpers/process.py +++ b/src/borg/helpers/process.py @@ -188,6 +188,8 @@ class SigIntManager: self._action_triggered = False self._action_done = False self.ctx = signal_handler('SIGINT', self.handler) + self.debounce_interval = 20000000 # ns + self.last = None # monotonic time when we last processed SIGINT def __bool__(self): # this will be True (and stay True) after the first Ctrl-C/SIGINT @@ -208,10 +210,22 @@ class SigIntManager: self._action_done = True def handler(self, sig_no, stack): - # handle the first ctrl-c / SIGINT. - self.__exit__(None, None, None) - self._sig_int_triggered = True - self._action_triggered = True + # Ignore a SIGINT if it comes too quickly after the last one, e.g. because it + # was caused by the same Ctrl-C key press and a parent process forwarded it to us. + # This can easily happen for the pyinstaller-made binaries because the bootloader + # process and the borg process are in same process group (see #8155), but maybe also + # under other circumstances. + now = time.monotonic_ns() + if self.last is None: # first SIGINT + self.last = now + self._sig_int_triggered = True + self._action_triggered = True + elif now - self.last >= self.debounce_interval: # second SIGINT + # restore the original signal handler for the 3rd+ SIGINT - + # this implies that this handler here loses control! + self.__exit__(None, None, None) + # handle 2nd SIGINT like the default handler would do it: + raise KeyboardInterrupt # python docs say this might show up at an arbitrary place. def __enter__(self): self.ctx.__enter__() |