XOY-Leveldb

小组成员：谢瑞阳、徐翔宇

Vēsture

costan 6caf73ad9d Clean up Iterator. This CL renames the private struct Iterator::Cleanup -> Iterator::CleanupNode, to better reflect that it's a linked list node, and extracts duplicated code from its user in IsEmpty() and Run() methods. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=199175058		pirms 6 gadiem
..
block.cc	Replace NULL with nullptr in C++ files.	pirms 6 gadiem
block.h	Added bloom filter support.	pirms 12 gadiem
block_builder.cc	A number of fixes:	pirms 13 gadiem
block_builder.h	Release 1.18	pirms 10 gadiem
filter_block.cc	Replace NULL with nullptr in C++ files.	pirms 6 gadiem
filter_block.h	Added bloom filter support.	pirms 12 gadiem
filter_block_test.cc	Release LevelDB 1.15	pirms 11 gadiem
format.cc	Fix LevelDB build when asserts are enabled in release builds. (#367)	pirms 8 gadiem
format.h	Remove extern from function declarations.	pirms 6 gadiem
iterator.cc	Clean up Iterator.	pirms 6 gadiem
iterator_wrapper.h	Replace NULL with nullptr in C++ files.	pirms 6 gadiem
merger.cc	Replace NULL with nullptr in C++ files.	pirms 6 gadiem
merger.h	Remove extern from function declarations.	pirms 6 gadiem
table.cc	Replace NULL with nullptr in C++ files.	pirms 6 gadiem
table_builder.cc	Replace NULL with nullptr in C++ files.	pirms 6 gadiem
table_test.cc	Replace NULL with nullptr in C++ files.	pirms 6 gadiem
two_level_iterator.cc	Replace NULL with nullptr in C++ files.	pirms 6 gadiem
two_level_iterator.h	Remove extern from function declarations.	pirms 6 gadiem