On 01/14/2014 10:20 AM, Benjamin Thaut wrote:
Am 14.01.2014 09:15, schrieb Jacob Carlborg:
On 2014-01-13 22:23, Timon Gehr wrote:

Yes, there is a cost. The requirement to pin arbitrary objects at
arbitrary times, without the possibility to move at pinning time,
invalidates GC algorithms that depend on being able to move _all_
objects within some pool.

Can't these object be pinned somewhere else?


Yes, thats the usual approach. But that means that you have to copy them
to a other space before pinning, or allocate them in a space that allows
pinning in the first place.

Once it becomes known that an object should be pinned, it is too late for moving. (There will then exist a potential pointer to the object.)

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