fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

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Dhruba Borthakur ad96563b79 Ability to configure bufferedio-reads, filesystem-readaheads and mmap-read-write per database. ... Summary: This patch allows an application to specify whether to use bufferedio, reads-via-mmaps and writes-via-mmaps per database. Earlier, there was a global static variable that was used to configure this functionality. The default setting remains the same (and is backward compatible): 1. use bufferedio 2. do not use mmaps for reads 3. use mmap for writes 4. use readaheads for reads needed for compaction I also added a parameter to db_bench to be able to explicitly specify whether to do readaheads for compactions or not. Test Plan: make check Reviewers: sheki, heyongqiang, MarkCallaghan Reviewed By: sheki CC: leveldb Differential Revision: https://reviews.facebook.net/D9429		12 years ago
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block.cc	Codemod NULL to nullptr	12 years ago
block.h	Added bloom filter support.	13 years ago
block_builder.cc	A number of fixes:	13 years ago
block_builder.h	A number of fixes:	13 years ago
block_test.cc	Unit test to test block format.	12 years ago
filter_block.cc	Codemod NULL to nullptr	12 years ago
filter_block.h	Added bloom filter support.	13 years ago
filter_block_test.cc	Fix all warnings generated by -Wall option to the compiler.	12 years ago
format.cc	Codemod NULL to nullptr	12 years ago
format.h	Added bloom filter support.	13 years ago
iter_heap.h	Use a priority queue to merge files.	12 years ago
iterator.cc	Codemod NULL to nullptr	12 years ago
iterator_wrapper.h	Codemod NULL to nullptr	12 years ago
merger.cc	Codemod NULL to nullptr	12 years ago
merger.h	A number of fixes:	13 years ago
table.cc	Ability to configure bufferedio-reads, filesystem-readaheads and mmap-read-write per database.	12 years ago
table_builder.cc	Codemod NULL to nullptr	12 years ago
table_test.cc	Ability to configure bufferedio-reads, filesystem-readaheads and mmap-read-write per database.	12 years ago
two_level_iterator.cc	Ability to configure bufferedio-reads, filesystem-readaheads and mmap-read-write per database.	12 years ago
two_level_iterator.h	Ability to configure bufferedio-reads, filesystem-readaheads and mmap-read-write per database.	12 years ago