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Make multiprocessing's shared memory use memoryview instead of raw pointer

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This commit is contained in:
Richard Oudkerk 2012-05-26 22:09:59 +01:00
parent 1a0df94db3
commit 26cdf1fe5b
3 changed files with 5 additions and 26 deletions
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11
Lib/multiprocessing/heap.py
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@ -205,7 +205,7 @@ class Heap(object):
self._lock.release()
#
# Class representing a chunk of an mmap -- can be inherited
# Class representing a chunk of an mmap -- can be inherited by child process
#
class BufferWrapper(object):
@ -218,11 +218,6 @@ class BufferWrapper(object):
self._state = (block, size)
Finalize(self, BufferWrapper._heap.free, args=(block,))
def get_address(self):
def create_memoryview(self):
(arena, start, stop), size = self._state
address, length = _multiprocessing.address_of_buffer(arena.buffer)
assert size <= length
return address + start
def get_size(self):
return self._state[1]
return memoryview(arena.buffer)[start:start+size]