mmalloc from last version to be included in gdb.

[ocaml-ancient.git] / mmalloc / TODO

diff --git a/mmalloc/TODO b/mmalloc/TODO
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+Things that still need attention:
+
+   *   Make implementation changes necessary to allow multiple processes
+       to use the mmalloc managed region simultaneously.  This requires,
+       at the minimum, some sort of cooperative locking that ensures that
+       only one process at a time is changing any of the mmalloc managed
+       data structures (its ok for the mmalloc managed data regions to be
+       changed at any time since we don't care about their contents).
+
+   *   In order to support multiple processes using the mmalloc managed
+       region, the malloc descriptor needs to be broken into two parts,
+       one part which is specific to the given process and is maintained
+       separately on a per process basis, and another part which is common
+       to all processes.  As an example, the file descriptor is specific
+       to a given process, as are the morecore and abortfunc pointers.
+       However magic[], the version number, the flags field, etc are
+       common to all processes.