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Rev Age Author Path Log message Diff Changes
1140 6624 d 21 h jermar /kernel/trunk/generic/ Change B+-tree from 2-3-4 tree to 2-3-4-5 tree by adding space for the fourth key.
This should make key removal easier.		  
/kernel/trunk/generic/include/adt/btree.h
/kernel/trunk/generic/src/adt/btree.c
1136 6628 d 21 h jermar /kernel/trunk/generic/src/adt/ Try to avoid splitting full B+-tree nodes by trying left or right rotation first.
(This improved memory consumption of this algorithm by some 40% - meassured on 101-item set).		  
/kernel/trunk/generic/src/adt/btree.c
1134 6630 d 0 h jermar /kernel/trunk/generic/src/adt/ Change B+-tree to:
- store lesser keys in a key's left subtree
- propagate the bigger of medians (if there are two medians) when splitting a node		  
/kernel/trunk/generic/src/adt/btree.c
1121 6631 d 19 h jermar /kernel/trunk/ Small textual changes.  
/kernel/trunk/arch/amd64/include/atomic.h
/kernel/trunk/arch/amd64/src/amd64.c
/kernel/trunk/arch/amd64/src/asm_utils.S
/kernel/trunk/arch/ia32/src/ia32.c
/kernel/trunk/arch/ia32/src/userspace.c
/kernel/trunk/arch/ia64/src/ia64.c
/kernel/trunk/arch/mips32/src/mips32.c
/kernel/trunk/generic/src/adt/btree.c
1101 6634 d 19 h jermar /kernel/trunk/ B+-tree implementation.
Currently supports only inserting and searching.		  
/kernel/trunk/generic/include/adt/btree.h
/kernel/trunk/generic/src/adt/btree.c
/kernel/trunk/test/btree
/kernel/trunk/test/btree/btree1
/kernel/trunk/test/btree/btree1/test.c
/kernel/trunk/Makefile
/kernel/trunk/generic/include/typedefs.h
/kernel/trunk/generic/src/main/main.c
/kernel/trunk/kernel.config