Copy of

commit ba00e640f658ad8d0a4dff09a497a51b8a4de935
Author: Herman Lee <herman@fb.com>
Date:   Wed Feb 22 06:30:06 2017 -0800

    Improve add_index_alter_cardinality test

    Summary:
    Split add_index_inplace_cardinality test out and add a debug_sync point
    to it so that the flush of the memtable occurs while the alter is
    running.
    Closes facebook/mysql-5.6#539

    Reviewed By: alxyang

    Differential Revision: D4597887

    Pulled By: hermanlee

    fbshipit-source-id: faedda2

Author: spetrunia

storage/rocksdb/.clang-format

@@ -0,0 +1,93 @@
+---
+Language:        Cpp
+# BasedOnStyle:  LLVM
+AccessModifierOffset: -2
+AlignAfterOpenBracket: Align
+AlignConsecutiveAssignments: false
+AlignConsecutiveDeclarations: false
+AlignEscapedNewlinesLeft: false
+AlignOperands:   true
+AlignTrailingComments: true
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: All
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: false
+BinPackArguments: true
+BinPackParameters: true
+BraceWrapping:   
+  AfterClass:      false
+  AfterControlStatement: false
+  AfterEnum:       false
+  AfterFunction:   false
+  AfterNamespace:  false
+  AfterObjCDeclaration: false
+  AfterStruct:     false
+  AfterUnion:      false
+  BeforeCatch:     false
+  BeforeElse:      false
+  IndentBraces:    false
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Attach
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializersBeforeComma: false
+BreakAfterJavaFieldAnnotations: false
+BreakStringLiterals: true
+ColumnLimit:     80
+CommentPragmas:  '^ IWYU pragma:'
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
+DerivePointerAlignment: false
+DisableFormat:   false
+ExperimentalAutoDetectBinPacking: false
+ForEachMacros:   [ foreach, Q_FOREACH, BOOST_FOREACH ]
+IncludeCategories: 
+  - Regex:           '^"(llvm|llvm-c|clang|clang-c)/'
+    Priority:        2
+  - Regex:           '^(<|"(gtest|isl|json)/)'
+    Priority:        3
+  - Regex:           '.*'
+    Priority:        1
+IncludeIsMainRegex: '$'
+IndentCaseLabels: false
+IndentWidth:     2
+IndentWrappedFunctionNames: false
+KeepEmptyLinesAtTheStartOfBlocks: true
+MacroBlockBegin: ''
+MacroBlockEnd:   ''
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+ObjCBlockIndentWidth: 2
+ObjCSpaceAfterProperty: false
+ObjCSpaceBeforeProtocolList: true
+PenaltyBreakBeforeFirstCallParameter: 19
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 60
+PointerAlignment: Right
+ReflowComments:  true
+SortIncludes:    true
+SpaceAfterCStyleCast: false
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeParens: ControlStatements
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles:  false
+SpacesInContainerLiterals: true
+SpacesInCStyleCastParentheses: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+Standard:        Cpp11
+TabWidth:        8
+UseTab:          Never
+JavaScriptQuotes: Leave
+...

storage/rocksdb/CMakeLists.txt

@@ -28,6 +28,11 @@ INCLUDE_DIRECTORIES(
 ADD_DEFINITIONS(-DROCKSDB_PLATFORM_POSIX -DROCKSDB_LIB_IO_POSIX -DOS_LINUX
   -DZLIB)
 
+CHECK_FUNCTION_EXISTS(fallocate HAVE_FALLOCATE)
+IF(HAVE_FALLOCATE)
+  ADD_DEFINITIONS(-DROCKSDB_FALLOCATE_PRESENT)
+ENDIF()
+
 SET(ROCKSDB_SOURCES
   ha_rocksdb.cc ha_rocksdb.h ha_rocksdb_proto.h
   logger.h
@@ -41,6 +46,7 @@ SET(ROCKSDB_SOURCES
   rdb_index_merge.cc rdb_index_merge.h
   rdb_perf_context.cc rdb_perf_context.h
   rdb_mutex_wrapper.cc rdb_mutex_wrapper.h
+  rdb_psi.h rdb_psi.cc
   rdb_sst_info.cc rdb_sst_info.h
   rdb_utils.cc rdb_utils.h rdb_buff.h
   rdb_threads.cc rdb_threads.h