core: support takes_econtext and takes_router decorators.

wip-fakessh-exit-status
David Wilson 7 years ago
parent 3a0f03183c
commit 4f50707b82

@ -22,6 +22,28 @@ mitogen.core
.. automodule:: mitogen.core
.. function:: mitogen.core.takes_econtext
Decorator that marks a function or class method to automatically receive a
kwarg named `econtext`, referencing the
:py:class:`econtext.core.ExternalContext` active in the context in which
the function is being invoked in. The decorator is only meaningful when the
function is invoked via :py:data:`econtext.core.CALL_FUNCTION`.
When the function is invoked directly, `econtext` must still be passed to it
explicitly.
.. function:: mitogen.core.takes_router
Decorator that marks a function or class method to automatically receive a
kwarg named `router`, referencing the :py:class:`econtext.core.Router`
active in the context in which the function is being invoked in. The
decorator is only meaningful when the function is invoked via
:py:data:`econtext.core.CALL_FUNCTION`.
When the function is invoked directly, `router` must still be passed to it
explicitly.
mitogen.master
--------------

@ -117,6 +117,16 @@ def fire(obj, name, *args, **kwargs):
return [func(*args, **kwargs) for func in signals.get(name, ())]
def takes_econtext(func):
func.mitogen_takes_econtext = True
return func
def takes_router(func):
func.mitogen_takes_router = True
return func
def set_cloexec(fd):
flags = fcntl.fcntl(fd, fcntl.F_GETFD)
fcntl.fcntl(fd, fcntl.F_SETFD, flags | fcntl.FD_CLOEXEC)
@ -1185,6 +1195,10 @@ class ExternalContext(object):
if klass:
obj = getattr(obj, klass)
fn = getattr(obj, func)
if getattr(fn, 'mitogen_takes_econtext', None):
kwargs.setdefault('econtext', self)
if getattr(fn, 'mitogen_takes_router', None):
kwargs.setdefault('router', self.router)
ret = fn(*args, **kwargs)
self.router.route(
Message.pickled(ret, dst_id=msg.src_id, handle=msg.reply_to)

@ -311,6 +311,7 @@ def _fakessh_main(mitogen_, dest_context_id):
# Public API.
#
@mitogen.core.takes_router
def run(dest, router, args, deadline=None):
"""
Run the command specified by the argument vector `args` such that ``PATH``

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