def callback(ll_args, ll_res, ll_userdata):
userdata = rffi.cast(USERDATA_P, ll_userdata)
callback_ptr = global_counter.CallbackPtr_by_number[userdata.addarg]
w_callable = callback_ptr.w_callable
res = rffi.cast(rffi.VOIDPP, ll_res)
argtypes = callback_ptr.args
space = callback_ptr.space
w_args = space.newlist([wrap_value(space, get_elem, ll_args[i], 0,
letter2tp(space, argtypes[i]))
for i in range(len(argtypes))])
w_res = space.call(w_callable, w_args)
unwrap_value(space, push_elem, ll_res, 0,
letter2tp(space, callback_ptr.result), w_res)
def from_memory(self, space, w_obj, offset):
# read access, so no copy needed
address_value = self._get_raw_address(space, w_obj, offset)
address = rffi.cast(rffi.ULONGP, address_value)
return lowlevelviews.W_LowLevelView(space,
letter2tp(space, self.typecode),
self.size, address[0])
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)
#
# 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 __getattr__(self, name):
if name.startswith('array_'):
typecode = name[len('array_'):]
arr = self.space.interp_w(W_Array, letter2tp(self.space, typecode))
setattr(self, name, arr)
return arr
raise AttributeError(name)
def callback(ll_args, ll_res, ll_userdata):
userdata = rffi.cast(USERDATA_P, ll_userdata)
callback_ptr = global_counter.get(userdata.addarg)
w_callable = callback_ptr.w_callable
argtypes = callback_ptr.argtypes
must_leave = False
space = callback_ptr.space
try:
must_leave = space.threadlocals.try_enter_thread(space)
args_w = [None] * len(argtypes)
for i in range(len(argtypes)):
argtype = argtypes[i]
if isinstance(argtype, W_Structure):
args_w[i] = argtype.fromaddress(
space, rffi.cast(rffi.SIZE_T, ll_args[i]))
else:
# XXX other types?
args_w[i] = space.wrap(rffi.cast(rffi.ULONG, ll_args[i]))
w_res = space.call(w_callable, space.newtuple(args_w))
if callback_ptr.result is not None: # don't return void
unwrap_value(space, write_ptr, ll_res, 0,
callback_ptr.result, w_res)
except OperationError, e:
tbprint(space, space.wrap(e.get_traceback()),
space.wrap(e.errorstr(space)))
# force the result to be zero
if callback_ptr.result is not None:
resshape = letter2tp(space, callback_ptr.result)
for i in range(resshape.size):
ll_res[i] = '\x00'
def __getattr__(self, name):
if name.startswith('array_'):
typecode = name[len('array_'):]
arr = self.space.interp_w(W_Array, letter2tp(self.space, typecode))
setattr(self, name, arr)
return arr
raise AttributeError(name)
def test_bitsizes():
fields = [("A", 'i', 1),
("B", 'i', 2),
("C", 'i', 3),
("D", 'i', 4),
("E", 'i', 5),
("F", 'i', 6),
("G", 'i', 7),
("H", 'i', 8),
("I", 'i', 9),
("M", 'h', 1),
("N", 'h', 2),
("O", 'h', 3),
("P", 'h', 4),
("Q", 'h', 5),
("R", 'h', 6),
("S", 'h', 7)]
size, alignment, pos, bitsizes = size_alignment_pos(
[(name, letter2tp('space', t), size)
for (name, t, size) in fields])
assert size == 12
import ctypes
class X(ctypes.Structure):
_fields_ = [(name, {'i':ctypes.c_int, 'h': ctypes.c_short}[t], size)
for (name, t, size) in fields]
assert pos == [getattr(X, name).offset for (name, _, _) in fields]
assert bitsizes == [getattr(X, name).size for (name, _, _) in fields]
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)
def callback(ll_args, ll_res, ll_userdata):
userdata = rffi.cast(USERDATA_P, ll_userdata)
callback_ptr = global_counter.get(userdata.addarg)
w_callable = callback_ptr.w_callable
argtypes = callback_ptr.argtypes
space = callback_ptr.space
try:
args_w = [None] * len(argtypes)
for i in range(len(argtypes)):
argtype = argtypes[i]
if isinstance(argtype, W_Structure):
args_w[i] = argtype.fromaddress(
space, rffi.cast(rffi.SIZE_T, ll_args[i]))
else:
# XXX other types?
args_w[i] = space.wrap(rffi.cast(rffi.ULONG, ll_args[i]))
w_res = space.call(w_callable, space.newtuple(args_w))
if callback_ptr.result is not None: # don't return void
unwrap_value(space, write_ptr, ll_res, 0,
callback_ptr.result, w_res)
except OperationError, e:
tbprint(space, space.wrap(e.get_traceback()),
space.wrap(e.errorstr(space)))
# force the result to be zero
if callback_ptr.result is not None:
resshape = letter2tp(space, callback_ptr.result)
for i in range(resshape.size):
ll_res[i] = '\x00'
def test_bitsizes_longlong():
fields = [("a", "q", 1), ("b", "q", 62), ("c", "q", 1)]
size, alignment, pos, bitsizes = size_alignment_pos(
[(name, letter2tp("space", t), size) for (name, t, size) in fields]
)
assert size == 8
assert pos == [0, 0, 0]
assert bitsizes == [0x10000, 0x3E0001, 0x1003F]
def test_bitsizes_longlong():
fields = [("a", 'q', 1), ("b", 'q', 62), ("c", 'q', 1)]
size, alignment, pos, bitsizes = size_alignment_pos([
(name, letter2tp('space', t), size) for (name, t, size) in fields
])
assert size == 8
assert pos == [0, 0, 0]
assert bitsizes == [0x10000, 0x3e0001, 0x1003f]
def from_memory(self, space, w_obj, w_pycppclass, offset):
# returned as a long value for the address (INTPTR_T is not proper
# per se, but rffi does not come with a PTRDIFF_T)
address = self._get_raw_address(space, w_obj, offset)
ptrval = rffi.cast(rffi.ULONG, rffi.cast(rffi.VOIDPP, address)[0])
if ptrval == 0:
from pypy.module.cppyy import interp_cppyy
return interp_cppyy.get_nullptr(space)
arr = space.interp_w(W_Array, letter2tp(space, 'P'))
return arr.fromaddress(space, ptrval, sys.maxint)
def from_memory(self, space, w_obj, offset):
# returned as a long value for the address (INTPTR_T is not proper
# per se, but rffi does not come with a PTRDIFF_T)
address = self._get_raw_address(space, w_obj, offset)
ptrval = rffi.cast(rffi.ULONGP, address)[0]
if ptrval == rffi.cast(rffi.ULONG, 0):
from pypy.module._cppyy import interp_cppyy
return interp_cppyy.get_nullptr(space)
shape = letter2tp(space, 'P')
return lowlevelviews.W_LowLevelView(space, shape, sys.maxint/shape.size, ptrval)
def from_memory(self, space, w_obj, w_pycppclass, offset):
# returned as a long value for the address (INTPTR_T is not proper
# per se, but rffi does not come with a PTRDIFF_T)
address = self._get_raw_address(space, w_obj, offset)
ptrval = rffi.cast(rffi.ULONG, rffi.cast(rffi.VOIDPP, address)[0])
if ptrval == 0:
from pypy.module._cppyy import interp_cppyy
return interp_cppyy.get_nullptr(space)
arr = space.interp_w(W_Array, letter2tp(space, 'P'))
return arr.fromaddress(space, ptrval, sys.maxint)
def execute(self, space, cppmethod, cppthis, num_args, args):
if hasattr(space, "fake"):
raise NotImplementedError
address = capi.c_call_r(space, cppmethod, cppthis, num_args, args)
ipv = rffi.cast(rffi.UINTPTR_T, address)
if ipv == rffi.cast(rffi.UINTPTR_T, 0):
from pypy.module._cppyy import interp_cppyy
return interp_cppyy.get_nullptr(space)
shape = letter2tp(space, self.typecode)
return lowlevelviews.W_LowLevelView(space, shape,
sys.maxint / shape.size, ipv)
def execute(self, space, cppmethod, cppthis, num_args, args):
if hasattr(space, "fake"):
raise NotImplementedError
lresult = capi.c_call_l(space, cppmethod, cppthis, num_args, args)
ptrval = rffi.cast(rffi.ULONG, lresult)
if ptrval == rffi.cast(rffi.ULONG, 0):
from pypy.module._cppyy import interp_cppyy
return interp_cppyy.get_nullptr(space)
shape = letter2tp(space, self.typecode)
return lowlevelviews.W_LowLevelView(space, shape,
sys.maxint / shape.size, ptrval)
def test_bitsizes_longlong():
fields = [("a", 'q', 1),
("b", 'q', 62),
("c", 'q', 1)]
size, alignment, pos, bitsizes = size_alignment_pos(
[(name, letter2tp('space', t), size)
for (name, t, size) in fields])
assert size == 8
assert pos == [0, 0, 0]
if sys.byteorder == 'little':
assert bitsizes == [0x10000, 0x3e0001, 0x1003f]
else:
assert bitsizes == [0x1003f, 0x3e0001, 0x10000]
def callback(ll_args, ll_res, ll_userdata):
userdata = rffi.cast(USERDATA_P, ll_userdata)
callback_ptr = global_counter.CallbackPtr_by_number[userdata.addarg]
w_callable = callback_ptr.w_callable
res = rffi.cast(rffi.VOIDPP, ll_res)
argtypes = callback_ptr.args
space = callback_ptr.space
try:
w_args = space.newlist([space.wrap(rffi.cast(rffi.ULONG, ll_args[i]))
for i in range(len(argtypes))])
w_res = space.call(w_callable, w_args)
if callback_ptr.result != 'O': # don't return void
unwrap_value(space, push_elem, ll_res, 0,
letter2tp(space, callback_ptr.result), w_res)
except OperationError, e:
tbprint(space, space.wrap(e.application_traceback),
space.wrap(e.errorstr(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)
self.ll_callback = CallbackFuncPtr(ffiargs, ffiresult,
callback, self.number, flags)
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)
def callback(ll_args, ll_res, ll_userdata):
userdata = rffi.cast(USERDATA_P, ll_userdata)
callback_ptr = global_counter.get(userdata.addarg)
w_callable = callback_ptr.w_callable
argtypes = callback_ptr.argtypes
must_leave = False
space = callback_ptr.space
try:
must_leave = space.threadlocals.try_enter_thread(space)
args_w = [None] * len(argtypes)
for i in range(len(argtypes)):
argtype = argtypes[i]
if isinstance(argtype, W_Structure):
args_w[i] = argtype.fromaddress(
space, rffi.cast(rffi.SIZE_T, ll_args[i]))
else:
# XXX other types?
args_w[i] = space.newint(rffi.cast(lltype.Unsigned,
ll_args[i]))
w_res = space.call(w_callable, space.newtuple(args_w))
if callback_ptr.result is not None: # don't return void
ptr = ll_res
letter = callback_ptr.result
if BIGENDIAN:
# take care of narrow integers!
for int_type in unroll_narrow_integer_types:
if int_type == letter:
T = LL_TYPEMAP[int_type]
n = rffi.sizeof(lltype.Signed) - rffi.sizeof(T)
ptr = rffi.ptradd(ptr, n)
break
unwrap_value(space, write_ptr, ptr, 0, letter, w_res)
except OperationError as e:
tbprint(space, e.get_w_traceback(space),
space.newtext(e.errorstr(space)))
# force the result to be zero
if callback_ptr.result is not None:
resshape = letter2tp(space, callback_ptr.result)
for i in range(resshape.size):
ll_res[i] = '\x00'
if must_leave:
space.threadlocals.leave_thread(space)
def test_bitsizes():
fields = [("A", 'i', 1), ("B", 'i', 2), ("C", 'i', 3), ("D", 'i', 4),
("E", 'i', 5), ("F", 'i', 6), ("G", 'i', 7), ("H", 'i', 8),
("I", 'i', 9), ("M", 'h', 1), ("N", 'h', 2), ("O", 'h', 3),
("P", 'h', 4), ("Q", 'h', 5), ("R", 'h', 6), ("S", 'h', 7)]
size, alignment, pos, bitsizes = size_alignment_pos([
(name, letter2tp('space', t), size) for (name, t, size) in fields
])
assert size == 12
import ctypes
class X(ctypes.Structure):
_fields_ = [(name, {
'i': ctypes.c_int,
'h': ctypes.c_short
}[t], size) for (name, t, size) in fields]
assert pos == [getattr(X, name).offset for (name, _, _) in fields]
assert bitsizes == [getattr(X, name).size for (name, _, _) in fields]
def callback(ll_args, ll_res, ll_userdata):
userdata = rffi.cast(USERDATA_P, ll_userdata)
callback_ptr = global_counter.get(userdata.addarg)
w_callable = callback_ptr.w_callable
argtypes = callback_ptr.argtypes
must_leave = False
space = callback_ptr.space
try:
must_leave = space.threadlocals.try_enter_thread(space)
args_w = [None] * len(argtypes)
for i in range(len(argtypes)):
argtype = argtypes[i]
if isinstance(argtype, W_Structure):
args_w[i] = argtype.fromaddress(
space, rffi.cast(rffi.SIZE_T, ll_args[i]))
else:
# XXX other types?
args_w[i] = space.wrap(rffi.cast(rffi.ULONG, ll_args[i]))
w_res = space.call(w_callable, space.newtuple(args_w))
if callback_ptr.result is not None: # don't return void
ptr = ll_res
letter = callback_ptr.result
if BIGENDIAN:
# take care of narrow integers!
for int_type in unroll_narrow_integer_types:
if int_type == letter:
T = LL_TYPEMAP[int_type]
n = rffi.sizeof(lltype.Signed) - rffi.sizeof(T)
ptr = rffi.ptradd(ptr, n)
break
unwrap_value(space, write_ptr, ptr, 0, letter, w_res)
except OperationError as e:
tbprint(space, space.wrap(e.get_traceback()),
space.wrap(e.errorstr(space)))
# force the result to be zero
if callback_ptr.result is not None:
resshape = letter2tp(space, callback_ptr.result)
for i in range(resshape.size):
ll_res[i] = '\x00'
if must_leave:
space.threadlocals.leave_thread(space)
def callback(ll_args, ll_res, ll_userdata):
userdata = rffi.cast(USERDATA_P, ll_userdata)
callback_ptr = global_counter.CallbackPtr_by_number[userdata.addarg]
w_callable = callback_ptr.w_callable
argtypes = callback_ptr.args
space = callback_ptr.space
try:
w_args = space.newlist([space.wrap(rffi.cast(rffi.ULONG, ll_args[i]))
for i in range(len(argtypes))])
w_res = space.call(w_callable, w_args)
if callback_ptr.result != 'O': # don't return void
unwrap_value(space, push_elem, ll_res, 0,
callback_ptr.result, w_res)
except OperationError, e:
tbprint(space, space.wrap(e.application_traceback),
space.wrap(e.errorstr(space)))
# force the result to be zero
if callback_ptr.result != 'O':
_, size, _ = letter2tp(space, callback_ptr.result)
for i in range(size):
ll_res[i] = '\x00'
def unpack(desc):
return [('x', letter2tp('space', i), 0) for i in desc]
def unpack(desc):
return [("x", letter2tp("space", i), 0) for i in desc]
def __init__(self, space):
self.space = space
self.cache = {}
self.array_of_ptr = self.get_array_type(letter2tp(space, 'P'))
def unpack(desc):
return [('x', letter2tp('space', i), 0) for i in desc]
def __init__(self, space):
self.space = space
self.cache = {}
self.array_of_ptr = self.get_array_type(letter2tp(space, 'P'))
def from_memory(self, space, w_obj, offset):
# read access, so no copy needed
address = self._get_raw_address(space, w_obj, offset)
ipv = rffi.cast(rffi.UINTPTR_T, rffi.cast(rffi.VOIDPP, address)[0])
return lowlevelviews.W_LowLevelView(
space, letter2tp(space, self.typecode), self.size, ipv)