def copy_and_convert_to_object(self, source):
space = self.space
self.check_complete()
ptr = lltype.malloc(rffi.CCHARP.TO,
self.size,
flavor='raw',
zero=False)
misc._raw_memcopy(source, ptr, self.size)
return cdataobj.W_CDataNewStd(space, ptr, self)
def allocate(self, space, datasize, ctype, length=-1):
from pypy.module._cffi_backend import cdataobj, ctypeptr
if self.w_alloc is None:
if self.should_clear_after_alloc:
ptr = lltype.malloc(rffi.CCHARP.TO,
datasize,
flavor='raw',
zero=True)
else:
ptr = lltype.malloc(rffi.CCHARP.TO,
datasize,
flavor='raw',
zero=False)
return cdataobj.W_CDataNewStd(space, ptr, ctype, length)
else:
w_raw_cdata = space.call_function(self.w_alloc,
space.wrap(datasize))
if not isinstance(w_raw_cdata, cdataobj.W_CData):
raise oefmt(space.w_TypeError,
"alloc() must return a cdata object (got %T)",
w_raw_cdata)
if not isinstance(w_raw_cdata.ctype, ctypeptr.W_CTypePtrOrArray):
raise oefmt(space.w_TypeError,
"alloc() must return a cdata pointer, not '%s'",
w_raw_cdata.ctype.name)
#
ptr = w_raw_cdata.unsafe_escaping_ptr()
if not ptr:
raise oefmt(space.w_MemoryError, "alloc() returned NULL")
#
if self.should_clear_after_alloc:
rffi.c_memset(rffi.cast(rffi.VOIDP, ptr), 0,
rffi.cast(rffi.SIZE_T, datasize))
#
if self.w_free is None:
# use this class which does not have a __del__, but still
# keeps alive w_raw_cdata
res = cdataobj.W_CDataNewNonStdNoFree(space, ptr, ctype,
length)
else:
res = cdataobj.W_CDataNewNonStdFree(space, ptr, ctype, length)
res.w_free = self.w_free
res.w_raw_cdata = w_raw_cdata
return res
def allocate(self, space, datasize, ctype, length=-1):
from pypy.module._cffi_backend import cdataobj, ctypeptr
if self.w_alloc is None:
if self.should_clear_after_alloc:
ptr = lltype.malloc(rffi.CCHARP.TO,
datasize,
flavor='raw',
zero=True,
add_memory_pressure=True)
else:
ptr = lltype.malloc(rffi.CCHARP.TO,
datasize,
flavor='raw',
zero=False,
add_memory_pressure=True)
return cdataobj.W_CDataNewStd(space, ptr, ctype, length)
else:
w_raw_cdata = space.call_function(self.w_alloc,
space.newint(datasize))
if not isinstance(w_raw_cdata, cdataobj.W_CData):
raise oefmt(space.w_TypeError,
"alloc() must return a cdata object (got %T)",
w_raw_cdata)
if not isinstance(w_raw_cdata.ctype, ctypeptr.W_CTypePtrOrArray):
raise oefmt(space.w_TypeError,
"alloc() must return a cdata pointer, not '%s'",
w_raw_cdata.ctype.name)
#
ptr = w_raw_cdata.unsafe_escaping_ptr()
if not ptr:
raise oefmt(space.w_MemoryError, "alloc() returned NULL")
#
if self.should_clear_after_alloc:
rffi.c_memset(rffi.cast(rffi.VOIDP, ptr), 0,
rffi.cast(rffi.SIZE_T, datasize))
#
res = cdataobj.W_CDataNewNonStd(space, ptr, ctype, length)
res.w_raw_cdata = w_raw_cdata
if self.w_free is not None:
res.w_free = self.w_free
res.register_finalizer(space)
rgc.add_memory_pressure(datasize)
return res
