Commit graph

3 commits

Author SHA1 Message Date
Nicolas Pitre
ad59e923e9 sys_heap: reduce the size of struct z_heap_bucket by half
This struct is taking up most of the heap's constant footprint overhead.
We can easily get rid of the list_size member as it is mostly used to
determine if the list is empty, and that can be determined through
other means.

Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
2020-06-21 19:25:35 +02:00
Nicolas Pitre
d1125d21d4 sys_heap: remove need for last_chunk()
We already have chunk #0 containing our struct z_heap and marked as
used. We can add a partial chunk at the very end that is also marked
as used. By doing so there is no longer a need for checking heap
boundaries at run time when merging/splitting chunks meaning fewer
conditionals in the code's hot path.

Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
2020-06-21 19:25:35 +02:00
Andy Ross
8f0959c7b1 kernel: Add k_mem_pool compatibility layer on top of k_heap
Add a shim layer implementing the legacy k_mem_pool APIs backed by a
k_heap instead of the original implementation.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2020-04-14 10:05:55 -07:00