Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / tools / perf / util / intlist.h

diff --git a/kernel/tools/perf/util/intlist.h b/kernel/tools/perf/util/intlist.h
new file mode 100644 (file)
index 0000000..aa6877d
--- /dev/null
+++ b/kernel/tools/perf/util/intlist.h
@@ -0,0 +1,77 @@
+#ifndef __PERF_INTLIST_H
+#define __PERF_INTLIST_H
+
+#include <linux/rbtree.h>
+#include <stdbool.h>
+
+#include "rblist.h"
+
+struct int_node {
+       struct rb_node rb_node;
+       int i;
+       void *priv;
+};
+
+struct intlist {
+       struct rblist rblist;
+};
+
+struct intlist *intlist__new(const char *slist);
+void intlist__delete(struct intlist *ilist);
+
+void intlist__remove(struct intlist *ilist, struct int_node *in);
+int intlist__add(struct intlist *ilist, int i);
+
+struct int_node *intlist__entry(const struct intlist *ilist, unsigned int idx);
+struct int_node *intlist__find(struct intlist *ilist, int i);
+struct int_node *intlist__findnew(struct intlist *ilist, int i);
+
+static inline bool intlist__has_entry(struct intlist *ilist, int i)
+{
+       return intlist__find(ilist, i) != NULL;
+}
+
+static inline bool intlist__empty(const struct intlist *ilist)
+{
+       return rblist__empty(&ilist->rblist);
+}
+
+static inline unsigned int intlist__nr_entries(const struct intlist *ilist)
+{
+       return rblist__nr_entries(&ilist->rblist);
+}
+
+/* For intlist iteration */
+static inline struct int_node *intlist__first(struct intlist *ilist)
+{
+       struct rb_node *rn = rb_first(&ilist->rblist.entries);
+       return rn ? rb_entry(rn, struct int_node, rb_node) : NULL;
+}
+static inline struct int_node *intlist__next(struct int_node *in)
+{
+       struct rb_node *rn;
+       if (!in)
+               return NULL;
+       rn = rb_next(&in->rb_node);
+       return rn ? rb_entry(rn, struct int_node, rb_node) : NULL;
+}
+
+/**
+ * intlist_for_each      - iterate over a intlist
+ * @pos:       the &struct int_node to use as a loop cursor.
+ * @ilist:     the &struct intlist for loop.
+ */
+#define intlist__for_each(pos, ilist)  \
+       for (pos = intlist__first(ilist); pos; pos = intlist__next(pos))
+
+/**
+ * intlist_for_each_safe - iterate over a intlist safe against removal of
+ *                         int_node
+ * @pos:       the &struct int_node to use as a loop cursor.
+ * @n:         another &struct int_node to use as temporary storage.
+ * @ilist:     the &struct intlist for loop.
+ */
+#define intlist__for_each_safe(pos, n, ilist)  \
+       for (pos = intlist__first(ilist), n = intlist__next(pos); pos;\
+            pos = n, n = intlist__next(n))
+#endif /* __PERF_INTLIST_H */