def __init__(self, space, w_callable, w_args, w_result,
flags=FUNCFLAG_CDECL):
self.space = space
self.w_callable = w_callable
self.argtypes = unpack_argshapes(space, w_args)
ffiargs = [tp.get_basic_ffi_type() for tp in self.argtypes]
if not space.is_w(w_result, space.w_None):
self.result = space.text_w(w_result)
ffiresult = letter2tp(space, self.result).get_basic_ffi_type()
else:
self.result = None
ffiresult = ffi_type_void
self.number = global_counter.add(self)
try:
self.ll_callback = CallbackFuncPtr(ffiargs, ffiresult,
callback, self.number, flags)
except LibFFIError:
raise got_libffi_error(space)
self.ll_buffer = rffi.cast(rffi.VOIDP, self.ll_callback.get_closure())
if tracker.DO_TRACING:
addr = rffi.cast(lltype.Signed, self.ll_callback.get_closure())
tracker.trace_allocation(addr, self)
#
# We must setup the GIL here, in case the callback is invoked in
# some other non-Pythonic thread. This is the same as ctypes on
# CPython (but only when creating a callback; on CPython it occurs
# as soon as we import _ctypes)
if space.config.translation.thread:
from pypy.module.thread.os_thread import setup_threads
setup_threads(space)
def __init__(self,
space,
w_callable,
w_args,
w_result,
flags=FUNCFLAG_CDECL):
self.space = space
self.w_callable = w_callable
self.argtypes = unpack_argshapes(space, w_args)
ffiargs = [tp.get_basic_ffi_type() for tp in self.argtypes]
if not space.is_w(w_result, space.w_None):
self.result = space.str_w(w_result)
ffiresult = letter2tp(space, self.result).get_basic_ffi_type()
else:
self.result = None
ffiresult = ffi_type_void
self.number = global_counter.add(self)
try:
self.ll_callback = CallbackFuncPtr(ffiargs, ffiresult, callback,
self.number, flags)
except LibFFIError:
raise got_libffi_error(space)
self.ll_buffer = rffi.cast(rffi.VOIDP, self.ll_callback.ll_closure)
if tracker.DO_TRACING:
addr = rffi.cast(lltype.Signed, self.ll_callback.ll_closure)
tracker.trace_allocation(addr, self)