| Commit message (Collapse) | Author | Age | Files | Lines |
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The implementation of RBTree_Next was using an awkward construction to detect
and avoid accessing the false root of the red-black tree. To deal with the
false root, RBTree_Next was comparing node parents with the control node.
Instead the false root can be detected by checking if the grandparent of a
node exists; the grandparent of the tree's true root is NULL by definition
so the root of the tree is found while walking up the tree by checking for
the non-existence of a grandparent.
This change propagates into the predecessor/successor and iterate functions.
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Make default for rtems_rbtree functions be unprotected (preemption enabled)
unless an unprotected variant e.g. rtems_rbtree_xxx_unprotected is available.
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New functions
o _RBTree_Next_unprotected(),
o _RBTree_Next(),
o _RBTree_Successor_unprotected(),
o _RBTree_Predecessor_unprotected(),
o rtems_rbtree_successor_unprotected(), and
o rtems_rbtree_predecessor_unprotected().
Change prototype of
o _RBTree_Successor(),
o _RBTree_Predecessor(),
o rtems_rbtree_successor(), and
o rtems_rbtree_predecessor().
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PR 1886/cpukit
* sapi/include/rtems/rbtree.h, sapi/inline/rtems/rbtree.inl,
score/include/rtems/score/rbtree.h,
score/inline/rtems/score/rbtree.inl, score/src/rbtree.c,
score/src/rbtreeinsert.c: This patch enables inserting duplicate keys
into rbtree. It is possible to turn on this feature when initializing
the tree.
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PR 1877/cpukit
* libfs/src/imfs/imfs_mknod.c, libfs/src/imfs/memfile.c,
sapi/inline/rtems/rbtree.inl, score/include/rtems/score/rbtree.h,
score/inline/rtems/score/rbtree.inl, score/src/rbtree.c,
score/src/rbtreefind.c, score/src/rbtreeinsert.c: Add comparison
function for RBTrees.
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PR 1641/cpukit
* sapi/Makefile.am, sapi/preinstall.am, score/Makefile.am,
score/preinstall.am: Add Red Black Tree data structure to score.
* sapi/include/rtems/rbtree.h, sapi/inline/rtems/rbtree.inl,
score/include/rtems/score/rbtree.h, score/inline/rtems/score/rbtree.inl,
score/src/rbtree.c, score/src/rbtreeextract.c,
score/src/rbtreefind.c, score/src/rbtreefindheader.c,
score/src/rbtreeget.c, score/src/rbtreeinsert.c,
score/src/rbtreepeek.c: New files.
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