Provide individual prototype and generate macros for the red-black tree.
This helps to reduce code size in statically linked applications. Submitted by: Sebastian Huber <sebastian.huber@embedded-brains.de> MFC after: 2 weeks
This commit is contained in:
Konstantin Belousov
parent
f43f9c89f2
commit
51782e3a89
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=277642
@ -30,7 +30,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd November 10, 2013
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.Dd January 24, 2015
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.Dt TREE 3
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.Os
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.Sh NAME
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@ -53,8 +53,26 @@
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.Nm SPLAY_REMOVE ,
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.Nm RB_PROTOTYPE ,
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.Nm RB_PROTOTYPE_STATIC ,
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.Nm RB_PROTOTYPE_INSERT ,
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.Nm RB_PROTOTYPE_INSERT_COLOR ,
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.Nm RB_PROTOTYPE_REMOVE ,
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.Nm RB_PROTOTYPE_REMOVE_COLOR ,
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.Nm RB_PROTOTYPE_FIND ,
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.Nm RB_PROTOTYPE_NFIND ,
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.Nm RB_PROTOTYPE_NEXT ,
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.Nm RB_PROTOTYPE_PREV ,
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.Nm RB_PROTOTYPE_MINMAX ,
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.Nm RB_GENERATE ,
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.Nm RB_GENERATE_STATIC ,
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.Nm RB_GENERATE_INSERT ,
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.Nm RB_GENERATE_INSERT_COLOR ,
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.Nm RB_GENERATE_REMOVE ,
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.Nm RB_GENERATE_REMOVE_COLOR ,
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.Nm RB_GENERATE_FIND ,
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.Nm RB_GENERATE_NFIND ,
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.Nm RB_GENERATE_NEXT ,
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.Nm RB_GENERATE_PREV ,
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.Nm RB_GENERATE_MINMAX ,
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.Nm RB_ENTRY ,
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.Nm RB_HEAD ,
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.Nm RB_INITIALIZER ,
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@ -111,8 +129,26 @@
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.Fn SPLAY_REMOVE NAME "SPLAY_HEAD *head" "struct TYPE *elm"
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.Fn RB_PROTOTYPE NAME TYPE FIELD CMP
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.Fn RB_PROTOTYPE_STATIC NAME TYPE FIELD CMP
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.Fn RB_PROTOTYPE_INSERT NAME TYPE ATTR
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.Fn RB_PROTOTYPE_INSERT_COLOR NAME TYPE ATTR
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.Fn RB_PROTOTYPE_REMOVE NAME TYPE ATTR
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.Fn RB_PROTOTYPE_REMOVE_COLOR NAME TYPE ATTR
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.Fn RB_PROTOTYPE_FIND NAME TYPE ATTR
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.Fn RB_PROTOTYPE_NFIND NAME TYPE ATTR
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.Fn RB_PROTOTYPE_NEXT NAME TYPE ATTR
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.Fn RB_PROTOTYPE_PREV NAME TYPE ATTR
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.Fn RB_PROTOTYPE_MINMAX NAME TYPE ATTR
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.Fn RB_GENERATE NAME TYPE FIELD CMP
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.Fn RB_GENERATE_STATIC NAME TYPE FIELD CMP
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.Fn RB_GENERATE_INSERT NAME TYPE FIELD CMP ATTR
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.Fn RB_GENERATE_INSERT_COLOR NAME TYPE FIELD ATTR
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.Fn RB_GENERATE_REMOVE NAME TYPE FIELD ATTR
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.Fn RB_GENERATE_REMOVE_COLOR NAME TYPE FIELD ATTR
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.Fn RB_GENERATE_FIND NAME TYPE FIELD CMP ATTR
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.Fn RB_GENERATE_NFIND NAME TYPE FIELD CMP ATTR
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.Fn RB_GENERATE_NEXT NAME TYPE FIELD ATTR
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.Fn RB_GENERATE_PREV NAME TYPE FIELD ATTR
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.Fn RB_GENERATE_MINMAX NAME TYPE FIELD ATTR
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.Fn RB_ENTRY TYPE
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.Fn RB_HEAD HEADNAME TYPE
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.Fn RB_INITIALIZER "RB_HEAD *head"
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@ -377,6 +413,27 @@ The
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.Fa FIELD
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argument is the name of the element defined by
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.Fn RB_ENTRY .
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Individual prototypes can be declared with
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.Fn RB_PROTOTYPE_INSERT ,
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.Fn RB_PROTOTYPE_INSERT_COLOR ,
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.Fn RB_PROTOTYPE_REMOVE ,
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.Fn RB_PROTOTYPE_REMOVE_COLOR ,
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.Fn RB_PROTOTYPE_FIND ,
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.Fn RB_PROTOTYPE_NFIND ,
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.Fn RB_PROTOTYPE_NEXT ,
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.Fn RB_PROTOTYPE_PREV ,
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and
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.Fn RB_PROTOTYPE_MINMAX
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in case not all functions are required. The individual prototype macros expect
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.Fa NAME ,
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.Fa TYPE ,
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and
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.Fa ATTR
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arguments. The
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.Fa ATTR
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argument must be empty for global functions or
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.Fa static
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for static functions.
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.Pp
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The function bodies are generated with the
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.Fn RB_GENERATE
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@ -388,6 +445,18 @@ These macros take the same arguments as the
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and
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.Fn RB_PROTOTYPE_STATIC
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macros, but should be used only once.
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As an alternative individual function bodies are generated with the
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.Fn RB_GENERATE_INSERT ,
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.Fn RB_GENERATE_INSERT_COLOR ,
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.Fn RB_GENERATE_REMOVE ,
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.Fn RB_GENERATE_REMOVE_COLOR ,
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.Fn RB_GENERATE_FIND ,
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.Fn RB_GENERATE_NFIND ,
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.Fn RB_GENERATE_NEXT ,
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.Fn RB_GENERATE_PREV ,
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and
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.Fn RB_GENERATE_MINMAX
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macros.
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.Pp
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Finally,
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the
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@ -383,16 +383,33 @@ struct { \
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#define RB_PROTOTYPE_STATIC(name, type, field, cmp) \
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RB_PROTOTYPE_INTERNAL(name, type, field, cmp, __unused static)
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#define RB_PROTOTYPE_INTERNAL(name, type, field, cmp, attr) \
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attr void name##_RB_INSERT_COLOR(struct name *, struct type *); \
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attr void name##_RB_REMOVE_COLOR(struct name *, struct type *, struct type *);\
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attr struct type *name##_RB_REMOVE(struct name *, struct type *); \
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attr struct type *name##_RB_INSERT(struct name *, struct type *); \
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attr struct type *name##_RB_FIND(struct name *, struct type *); \
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attr struct type *name##_RB_NFIND(struct name *, struct type *); \
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attr struct type *name##_RB_NEXT(struct type *); \
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attr struct type *name##_RB_PREV(struct type *); \
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attr struct type *name##_RB_MINMAX(struct name *, int); \
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\
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RB_PROTOTYPE_INSERT_COLOR(name, type, attr); \
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RB_PROTOTYPE_REMOVE_COLOR(name, type, attr); \
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RB_PROTOTYPE_INSERT(name, type, attr); \
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RB_PROTOTYPE_REMOVE(name, type, attr); \
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RB_PROTOTYPE_FIND(name, type, attr); \
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RB_PROTOTYPE_NFIND(name, type, attr); \
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RB_PROTOTYPE_NEXT(name, type, attr); \
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RB_PROTOTYPE_PREV(name, type, attr); \
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RB_PROTOTYPE_MINMAX(name, type, attr);
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#define RB_PROTOTYPE_INSERT_COLOR(name, type, attr) \
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attr void name##_RB_INSERT_COLOR(struct name *, struct type *)
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#define RB_PROTOTYPE_REMOVE_COLOR(name, type, attr) \
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attr void name##_RB_REMOVE_COLOR(struct name *, struct type *, struct type *)
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#define RB_PROTOTYPE_REMOVE(name, type, attr) \
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attr struct type *name##_RB_REMOVE(struct name *, struct type *)
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#define RB_PROTOTYPE_INSERT(name, type, attr) \
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attr struct type *name##_RB_INSERT(struct name *, struct type *)
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#define RB_PROTOTYPE_FIND(name, type, attr) \
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attr struct type *name##_RB_FIND(struct name *, struct type *)
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#define RB_PROTOTYPE_NFIND(name, type, attr) \
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attr struct type *name##_RB_NFIND(struct name *, struct type *)
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#define RB_PROTOTYPE_NEXT(name, type, attr) \
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attr struct type *name##_RB_NEXT(struct type *)
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#define RB_PROTOTYPE_PREV(name, type, attr) \
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attr struct type *name##_RB_PREV(struct type *)
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#define RB_PROTOTYPE_MINMAX(name, type, attr) \
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attr struct type *name##_RB_MINMAX(struct name *, int)
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/* Main rb operation.
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* Moves node close to the key of elm to top
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@ -402,6 +419,17 @@ attr struct type *name##_RB_MINMAX(struct name *, int); \
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#define RB_GENERATE_STATIC(name, type, field, cmp) \
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RB_GENERATE_INTERNAL(name, type, field, cmp, __unused static)
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#define RB_GENERATE_INTERNAL(name, type, field, cmp, attr) \
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RB_GENERATE_INSERT_COLOR(name, type, field, attr) \
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RB_GENERATE_REMOVE_COLOR(name, type, field, attr) \
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RB_GENERATE_INSERT(name, type, field, cmp, attr) \
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RB_GENERATE_REMOVE(name, type, field, attr) \
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RB_GENERATE_FIND(name, type, field, cmp, attr) \
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RB_GENERATE_NFIND(name, type, field, cmp, attr) \
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RB_GENERATE_NEXT(name, type, field, attr) \
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RB_GENERATE_PREV(name, type, field, attr) \
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RB_GENERATE_MINMAX(name, type, field, attr)
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#define RB_GENERATE_INSERT_COLOR(name, type, field, attr) \
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attr void \
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name##_RB_INSERT_COLOR(struct name *head, struct type *elm) \
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{ \
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@ -444,8 +472,9 @@ name##_RB_INSERT_COLOR(struct name *head, struct type *elm) \
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} \
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} \
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RB_COLOR(head->rbh_root, field) = RB_BLACK; \
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} \
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\
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}
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#define RB_GENERATE_REMOVE_COLOR(name, type, field, attr) \
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attr void \
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name##_RB_REMOVE_COLOR(struct name *head, struct type *parent, struct type *elm) \
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{ \
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@ -522,8 +551,9 @@ name##_RB_REMOVE_COLOR(struct name *head, struct type *parent, struct type *elm)
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} \
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if (elm) \
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RB_COLOR(elm, field) = RB_BLACK; \
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} \
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\
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}
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#define RB_GENERATE_REMOVE(name, type, field, attr) \
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attr struct type * \
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name##_RB_REMOVE(struct name *head, struct type *elm) \
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{ \
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@ -590,7 +620,8 @@ color: \
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name##_RB_REMOVE_COLOR(head, parent, child); \
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return (old); \
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} \
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\
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#define RB_GENERATE_INSERT(name, type, field, cmp, attr) \
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/* Inserts a node into the RB tree */ \
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attr struct type * \
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name##_RB_INSERT(struct name *head, struct type *elm) \
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@ -620,8 +651,9 @@ name##_RB_INSERT(struct name *head, struct type *elm) \
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RB_ROOT(head) = elm; \
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name##_RB_INSERT_COLOR(head, elm); \
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return (NULL); \
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} \
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\
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}
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#define RB_GENERATE_FIND(name, type, field, cmp, attr) \
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/* Finds the node with the same key as elm */ \
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attr struct type * \
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name##_RB_FIND(struct name *head, struct type *elm) \
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@ -638,8 +670,9 @@ name##_RB_FIND(struct name *head, struct type *elm) \
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return (tmp); \
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} \
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return (NULL); \
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} \
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\
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}
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#define RB_GENERATE_NFIND(name, type, field, cmp, attr) \
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/* Finds the first node greater than or equal to the search key */ \
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attr struct type * \
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name##_RB_NFIND(struct name *head, struct type *elm) \
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@ -659,8 +692,9 @@ name##_RB_NFIND(struct name *head, struct type *elm) \
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return (tmp); \
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} \
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return (res); \
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} \
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\
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}
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#define RB_GENERATE_NEXT(name, type, field, attr) \
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/* ARGSUSED */ \
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attr struct type * \
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name##_RB_NEXT(struct type *elm) \
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@ -681,8 +715,9 @@ name##_RB_NEXT(struct type *elm) \
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} \
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} \
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return (elm); \
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} \
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\
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}
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#define RB_GENERATE_PREV(name, type, field, attr) \
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/* ARGSUSED */ \
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attr struct type * \
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name##_RB_PREV(struct type *elm) \
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@ -703,8 +738,9 @@ name##_RB_PREV(struct type *elm) \
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} \
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} \
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return (elm); \
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} \
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\
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}
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#define RB_GENERATE_MINMAX(name, type, field, attr) \
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attr struct type * \
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name##_RB_MINMAX(struct name *head, int val) \
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{ \
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