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author | Charlie Vieth <charlie.vieth@gmail.com> | 2022-02-05 18:47:43 -0500 |
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committer | BenBE <BenBE@geshi.org> | 2022-05-05 09:17:51 +0200 |
commit | 08166b27b191e7be62d74054d92a9720c3a141ab (patch) | |
tree | c5b839805f0565b11058ff7b7832b5fadfb4bc55 /XUtils.c | |
parent | c7413fd6771b65388bea14ef42863444c6eaa419 (diff) |
ProcessList: fix quadratic process removal when scanning
This commit changes ProcessList_scan to lazily remove Processes by
index, which is known, instead of performing a brute-force search by
pid and immediately reclaiming the lost vector space via compaction.
Searching by pid is potentially quadratic in ProcessList_scan because
the process we are searching for is always at the back of the vector
(the scan starts from the back of the vector). Additionally, removal
via Vector_remove immediately reclaims space (by sliding elements
down).
With these changes process removal in ProcessList_scan is now linear.
Changes:
* ProcessList: add new ProcessList_removeIndex function to remove
by index
* Vector: add Vector_softRemove and Vector_compact functions to
support lazy removal/deletion of entries Vector_softRemove
Vector_compact
* Vector: replace Vector_count with Vector_countEquals since it only
used for consistency assertions.
Diffstat (limited to 'XUtils.c')
0 files changed, 0 insertions, 0 deletions