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author | David Ahern <dsahern@gmail.com> | 2012-07-30 22:31:32 -0600 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-08-03 10:37:21 -0300 |
commit | 37bbd3fff1480a1f5d57abb9e9e56f468954c1b1 (patch) | |
tree | 458ea5149b983dc9cac9ca4bd41e18b5e1655176 /tools/perf/util/rblist.h | |
parent | 347ed9903a10179d1cf733d5d77072b283d89da3 (diff) | |
download | linux-stable-37bbd3fff1480a1f5d57abb9e9e56f468954c1b1.tar.gz linux-stable-37bbd3fff1480a1f5d57abb9e9e56f468954c1b1.tar.bz2 linux-stable-37bbd3fff1480a1f5d57abb9e9e56f468954c1b1.zip |
perf tools: Introducing rblist
rblist is the rbtree based code from strlist. It will be the common code
for strlist and the to-be-introduced intlist.
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1343709095-7089-2-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/rblist.h')
-rw-r--r-- | tools/perf/util/rblist.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/tools/perf/util/rblist.h b/tools/perf/util/rblist.h new file mode 100644 index 000000000000..6d0cae5ae83d --- /dev/null +++ b/tools/perf/util/rblist.h @@ -0,0 +1,47 @@ +#ifndef __PERF_RBLIST_H +#define __PERF_RBLIST_H + +#include <linux/rbtree.h> +#include <stdbool.h> + +/* + * create node structs of the form: + * struct my_node { + * struct rb_node rb_node; + * ... my data ... + * }; + * + * create list structs of the form: + * struct mylist { + * struct rblist rblist; + * ... my data ... + * }; + */ + +struct rblist { + struct rb_root entries; + unsigned int nr_entries; + + int (*node_cmp)(struct rb_node *rbn, const void *entry); + struct rb_node *(*node_new)(struct rblist *rlist, const void *new_entry); + void (*node_delete)(struct rblist *rblist, struct rb_node *rb_node); +}; + +void rblist__init(struct rblist *rblist); +void rblist__delete(struct rblist *rblist); +int rblist__add_node(struct rblist *rblist, const void *new_entry); +void rblist__remove_node(struct rblist *rblist, struct rb_node *rb_node); +struct rb_node *rblist__find(struct rblist *rblist, const void *entry); +struct rb_node *rblist__entry(const struct rblist *rblist, unsigned int idx); + +static inline bool rblist__empty(const struct rblist *rblist) +{ + return rblist->nr_entries == 0; +} + +static inline unsigned int rblist__nr_entries(const struct rblist *rblist) +{ + return rblist->nr_entries; +} + +#endif /* __PERF_RBLIST_H */ |