8 struct rb_node rb_node;
12 /* Should perhaps be moved to struct machine */
13 static struct rb_root comm_str_root;
15 static void comm_str__get(struct comm_str *cs)
20 static void comm_str__put(struct comm_str *cs)
23 rb_erase(&cs->rb_node, &comm_str_root);
29 static struct comm_str *comm_str__alloc(const char *str)
33 cs = zalloc(sizeof(*cs));
37 cs->str = strdup(str);
46 static struct comm_str *comm_str__findnew(const char *str, struct rb_root *root)
48 struct rb_node **p = &root->rb_node;
49 struct rb_node *parent = NULL;
50 struct comm_str *iter, *new;
55 iter = rb_entry(parent, struct comm_str, rb_node);
57 cmp = strcmp(str, iter->str);
67 new = comm_str__alloc(str);
71 rb_link_node(&new->rb_node, parent, p);
72 rb_insert_color(&new->rb_node, root);
77 struct comm *comm__new(const char *str, u64 timestamp, bool exec)
79 struct comm *comm = zalloc(sizeof(*comm));
84 comm->start = timestamp;
87 comm->comm_str = comm_str__findnew(str, &comm_str_root);
88 if (!comm->comm_str) {
93 comm_str__get(comm->comm_str);
98 int comm__override(struct comm *comm, const char *str, u64 timestamp, bool exec)
100 struct comm_str *new, *old = comm->comm_str;
102 new = comm_str__findnew(str, &comm_str_root);
108 comm->comm_str = new;
109 comm->start = timestamp;
116 void comm__free(struct comm *comm)
118 comm_str__put(comm->comm_str);
122 const char *comm__str(const struct comm *comm)
124 return comm->comm_str->str;