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from rpython.rtyper.lltypesystem import rffi
from rpython.rlib.buffer import RawBuffer
# XXX not the most efficient implementation
class RawFFIBuffer(RawBuffer):
_immutable_ = True
def __init__(self, datainstance):
self.datainstance = datainstance
self.readonly = False
def getlength(self):
return self.datainstance.getrawsize()
def getitem(self, index):
ll_buffer = self.datainstance.ll_buffer
return ll_buffer[index]
def setitem(self, index, char):
ll_buffer = self.datainstance.ll_buffer
ll_buffer[index] = char
def get_raw_address(self):
ll_buffer = self.datainstance.ll_buffer
return rffi.cast(rffi.CCHARP, ll_buffer)
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