forked from Minki/linux
perf tools: Change strlist to use the new rblist
Replaces the direct use of rbtree code with the rblist API. In the end the patch is a no-op on strlist functionality; the API for strlist is not changed, only its implementaton. 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/1343709095-7089-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
David Ahern
Arnaldo Carvalho de Melo
parent
37bbd3fff1
commit
ee8dd3ca43
@ -10,23 +10,28 @@
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#include <stdlib.h>
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#include <string.h>
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static struct str_node *str_node__new(const char *s, bool dupstr)
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static
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struct rb_node *strlist__node_new(struct rblist *rblist, const void *entry)
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{
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struct str_node *self = malloc(sizeof(*self));
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const char *s = entry;
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struct rb_node *rc = NULL;
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struct strlist *strlist = container_of(rblist, struct strlist, rblist);
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struct str_node *snode = malloc(sizeof(*snode));
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if (self != NULL) {
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if (dupstr) {
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if (snode != NULL) {
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if (strlist->dupstr) {
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s = strdup(s);
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if (s == NULL)
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goto out_delete;
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}
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self->s = s;
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snode->s = s;
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rc = &snode->rb_node;
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}
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return self;
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return rc;
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out_delete:
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free(self);
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free(snode);
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return NULL;
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}
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@ -37,36 +42,26 @@ static void str_node__delete(struct str_node *self, bool dupstr)
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free(self);
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}
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static
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void strlist__node_delete(struct rblist *rblist, struct rb_node *rb_node)
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{
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struct strlist *slist = container_of(rblist, struct strlist, rblist);
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struct str_node *snode = container_of(rb_node, struct str_node, rb_node);
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str_node__delete(snode, slist->dupstr);
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}
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static int strlist__node_cmp(struct rb_node *rb_node, const void *entry)
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{
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const char *str = entry;
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struct str_node *snode = container_of(rb_node, struct str_node, rb_node);
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return strcmp(snode->s, str);
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}
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int strlist__add(struct strlist *self, const char *new_entry)
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{
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struct rb_node **p = &self->entries.rb_node;
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struct rb_node *parent = NULL;
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struct str_node *sn;
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while (*p != NULL) {
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int rc;
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parent = *p;
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sn = rb_entry(parent, struct str_node, rb_node);
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rc = strcmp(sn->s, new_entry);
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if (rc > 0)
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p = &(*p)->rb_left;
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else if (rc < 0)
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p = &(*p)->rb_right;
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else
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return -EEXIST;
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}
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sn = str_node__new(new_entry, self->dupstr);
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if (sn == NULL)
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return -ENOMEM;
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rb_link_node(&sn->rb_node, parent, p);
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rb_insert_color(&sn->rb_node, &self->entries);
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++self->nr_entries;
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return 0;
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return rblist__add_node(&self->rblist, new_entry);
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}
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int strlist__load(struct strlist *self, const char *filename)
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@ -96,34 +91,20 @@ out:
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return err;
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}
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void strlist__remove(struct strlist *self, struct str_node *sn)
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void strlist__remove(struct strlist *slist, struct str_node *snode)
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{
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rb_erase(&sn->rb_node, &self->entries);
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str_node__delete(sn, self->dupstr);
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str_node__delete(snode, slist->dupstr);
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}
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struct str_node *strlist__find(struct strlist *self, const char *entry)
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struct str_node *strlist__find(struct strlist *slist, const char *entry)
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{
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struct rb_node **p = &self->entries.rb_node;
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struct rb_node *parent = NULL;
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struct str_node *snode = NULL;
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struct rb_node *rb_node = rblist__find(&slist->rblist, entry);
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while (*p != NULL) {
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struct str_node *sn;
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int rc;
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if (rb_node)
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snode = container_of(rb_node, struct str_node, rb_node);
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parent = *p;
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sn = rb_entry(parent, struct str_node, rb_node);
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rc = strcmp(sn->s, entry);
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if (rc > 0)
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p = &(*p)->rb_left;
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else if (rc < 0)
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p = &(*p)->rb_right;
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else
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return sn;
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}
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return NULL;
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return snode;
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}
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static int strlist__parse_list_entry(struct strlist *self, const char *s)
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@ -156,9 +137,12 @@ struct strlist *strlist__new(bool dupstr, const char *slist)
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struct strlist *self = malloc(sizeof(*self));
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if (self != NULL) {
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self->entries = RB_ROOT;
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rblist__init(&self->rblist);
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self->rblist.node_cmp = strlist__node_cmp;
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self->rblist.node_new = strlist__node_new;
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self->rblist.node_delete = strlist__node_delete;
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self->dupstr = dupstr;
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self->nr_entries = 0;
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if (slist && strlist__parse_list(self, slist) != 0)
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goto out_error;
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}
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@ -171,30 +155,18 @@ out_error:
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void strlist__delete(struct strlist *self)
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{
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if (self != NULL) {
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struct str_node *pos;
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struct rb_node *next = rb_first(&self->entries);
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while (next) {
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pos = rb_entry(next, struct str_node, rb_node);
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next = rb_next(&pos->rb_node);
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strlist__remove(self, pos);
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}
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self->entries = RB_ROOT;
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free(self);
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}
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if (self != NULL)
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rblist__delete(&self->rblist);
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}
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struct str_node *strlist__entry(const struct strlist *self, unsigned int idx)
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struct str_node *strlist__entry(const struct strlist *slist, unsigned int idx)
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{
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struct rb_node *nd;
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struct str_node *snode = NULL;
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struct rb_node *rb_node;
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for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) {
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struct str_node *pos = rb_entry(nd, struct str_node, rb_node);
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rb_node = rblist__entry(&slist->rblist, idx);
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if (rb_node)
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snode = container_of(rb_node, struct str_node, rb_node);
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if (!idx--)
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return pos;
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}
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return NULL;
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return snode;
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}
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@ -4,14 +4,15 @@
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#include <linux/rbtree.h>
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#include <stdbool.h>
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#include "rblist.h"
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struct str_node {
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struct rb_node rb_node;
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const char *s;
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};
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struct strlist {
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struct rb_root entries;
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unsigned int nr_entries;
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struct rblist rblist;
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bool dupstr;
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};
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@ -32,18 +33,18 @@ static inline bool strlist__has_entry(struct strlist *self, const char *entry)
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static inline bool strlist__empty(const struct strlist *self)
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{
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return self->nr_entries == 0;
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return rblist__empty(&self->rblist);
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}
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static inline unsigned int strlist__nr_entries(const struct strlist *self)
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{
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return self->nr_entries;
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return rblist__nr_entries(&self->rblist);
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}
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/* For strlist iteration */
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static inline struct str_node *strlist__first(struct strlist *self)
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{
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struct rb_node *rn = rb_first(&self->entries);
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struct rb_node *rn = rb_first(&self->rblist.entries);
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return rn ? rb_entry(rn, struct str_node, rb_node) : NULL;
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}
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static inline struct str_node *strlist__next(struct str_node *sn)
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