idZddlmZddlmZddlZgZgZea da da ejZ ej ZdZ dZdZddlZd Zd d d Zd ejjvrXeedrLeej_edededn?edededeeeeezdZeezZdS)aj Cooperative implementation of special cases of :func:`signal.signal`. This module is designed to work with libev's child watchers, as used by default in :func:`gevent.os.fork` Note that each ``SIGCHLD`` handler will be run in a new greenlet when the signal is delivered (just like :class:`gevent.hub.signal`) The implementations in this module are only monkey patched if :func:`gevent.os.waitpid` is being used (the default) and if :const:`signal.SIGCHLD` is available; see :func:`gevent.os.fork` for information on configuring this not to be the case for advanced uses. .. versionadded:: 1.1b4 .. versionchanged:: 1.5a4 Previously there was a backwards compatibility alias ``gevent.signal``, introduced in 1.1b4, that partly shadowed this module, confusing humans and static analysis tools alike. That alias has been removed. (See `gevent.signal_handler`.) )_NONE) copy_globalsNc|tjkrt|StturttjatS)z Exactly the same as :func:`signal.getsignal` except where :const:`signal.SIGCHLD` is concerned. For :const:`signal.SIGCHLD`, this cooperates with :func:`signal` to provide consistent answers. )_signalSIGCHLD_signal_getsignal_child_handler_INITIAL) signalnums 8/usr/local/lib/python3.11/dist-packages/gevent/signal.py getsignalr&sAGO## +++!!*7?;; c|tjkrt||S|tjkr.|tjkrt |st dt|}|a|tjtjfvr7ddl m }t|||j |S)aq Exactly the same as :func:`signal.signal` except where :const:`signal.SIGCHLD` is concerned. .. note:: A :const:`signal.SIGCHLD` handler installed with this function will only be triggered for children that are forked using :func:`gevent.os.fork` (:func:`gevent.os.fork_and_watch`); children forked before monkey patching, or otherwise by the raw :func:`os.fork`, will not trigger the handler installed by this function. (It's unlikely that a SIGCHLD handler installed with the builtin :func:`signal.signal` would be triggered either; libev typically overwrites such a handler at the C level. At the very least, it's full of race conditions.) .. note:: Use of ``SIG_IGN`` and ``SIG_DFL`` may also have race conditions with libev child watchers and the :mod:`gevent.subprocess` module. .. versionchanged:: 1.2a1 If ``SIG_IGN`` or ``SIG_DFL`` are used to ignore ``SIGCHLD``, a future use of ``gevent.subprocess`` and libev child watchers will once again work. However, on Python 2, use of ``os.popen`` will fail. .. versionchanged:: 1.1rc2 Allow using ``SIG_IGN`` and ``SIG_DFL`` to reset and ignore ``SIGCHLD``. However, this allows the possibility of a race condition if ``gevent.subprocess`` had already been used. zKsignal handler must be signal.SIG_IGN, signal.SIG_DFL, or a callable objectrget_hub) rr_signal_signalSIG_IGNSIG_DFLcallable TypeErrorrr gevent.hubrloop reset_sigchld)r handler old_handlerrs r signalr8sBGO##i111 '/!!g&@&@RYIZIZ&@efffI&&KN7?GO444 '&&&&&y'*** $$&&& rcttrsddlm}tdkr0|t tt }||ttj d}|dSdS)Nr)Greenlet) rr geventr_child_wakeup_fd_write_child_signal_fd$_child_wakeup_fd_warn_on_full_bufferswitchrr)rgreenlets r _on_child_hookr&qs ###### q x 6 0 DFFH OO   8NGOTBB  rc4 tj|ttjfdS#t $rQ}|s|jtjjvr,ddl m }| ddddYd}~dSYd}~dSd}~wwxYw)Nrr set_wakeup_fd) r os_writebytesrrOSErrorerrnoignored_errorsrr handle_error)fdwarn_on_full_bufferers r r"r"s F UGO#56677777 FFF  F!'1I"I"I * * * * * * GII " "?D$ E E E E E E E E E#J"I"I"I"I"IFs8< BABBTr1c:tj||}|a|a|S)a Set the wakeup file descriptor to *fd*. When a signal is received, the signal number is written as a single byte into the *fd*. This can be used by a library to wakeup a poll or select call, allowing the signal to be fully processed. .. versionadded:: 25.8.1 r3)rr(r!r#)r0r1old_fds r r(r(s+ "2;N O O OF+>( Mrwaitpidrrrr()names_to_ignoredunder_names_to_keep)__doc__ gevent._utilrr rrr__implements____extensions__r r!r#rrr r& gevent.osr r"r(r)hasattrappendglobals __imports____all__r7rr rDs(+*****%%%%%%'+$%$666r     F F F15       (((WWWi-H-H( .FI(###+&&&/****(###+&&&/***l7GGII+9N+J02444  > )r