def __alloc_arena(self, elementsize, pages=1):
'''allocates an arena for elements of /elementsize/'''
allocator = self.allocator
size = allocator.getPageSize()*pages
pointer = allocator.getWriteable(None, pages)
res = bitmap.new(0, size / elementsize )
return (pointer, (int(elementsize), res))
def __alloc_arena(self, elementsize, pages=1):
'''allocates an arena for elements of /elementsize/'''
allocator = self.allocator
size = allocator.getPageSize() * pages
pointer = allocator.getWriteable(None, pages)
res = bitmap.new(0, size / elementsize)
return (pointer, (int(elementsize), res))
def load(self, size):
'''Allocate some number of writeable bytes for later making executable'''
allocator = self.allocator
# allocate size
pages = (size / allocator.getPageSize())+1
# get a writeable page, and then write our code to it
pointer = self.allocator.getWriteable(None, pages)
assert pointer not in self.loaded.keys() # heh
# add pointer to lookup
self.loaded[pointer] = pages
return pointer
def load(self, size):
'''Allocate some number of writeable bytes for later making executable'''
allocator = self.allocator
# allocate size
pages = (size / allocator.getPageSize()) + 1
# get a writeable page, and then write our code to it
pointer = self.allocator.getWriteable(None, pages)
assert pointer not in self.loaded.keys() # heh
# add pointer to lookup
self.loaded[pointer] = pages
return pointer
