1 files changed, 54 insertions, 0 deletions
diff --git a/include/haproxy/ncbuf.h b/include/haproxy/ncbuf.h
new file mode 100644
index 0000000..8972793
--- /dev/null
+++ b/include/haproxy/ncbuf.h
@@ -0,0 +1,54 @@
+#ifndef _HAPROXY_NCBUF_H
+#define _HAPROXY_NCBUF_H
+
+#include <haproxy/ncbuf-t.h>
+
+static inline int ncb_is_null(const struct ncbuf *buf)
+{
+	return buf->size == 0;
+}
+
+void ncb_init(struct ncbuf *buf, ncb_sz_t head);
+struct ncbuf ncb_make(char *area, ncb_sz_t size, ncb_sz_t head);
+
+/* Returns start of allocated buffer area. */
+static inline char *ncb_orig(const struct ncbuf *buf)
+{
+	return buf->area;
+}
+
+/* Returns current head pointer into buffer area. */
+static inline char *ncb_head(const struct ncbuf *buf)
+{
+	return buf->area + buf->head;
+}
+
+/* Returns the first byte after the allocated buffer area. */
+static inline char *ncb_wrap(const struct ncbuf *buf)
+{
+	return buf->area + buf->size;
+}
+
+/* Returns the usable size of <buf> for data storage. This is the size of the
+ * allocated buffer without the reserved header space.
+ */
+static inline ncb_sz_t ncb_size(const struct ncbuf *buf)
+{
+	if (ncb_is_null(buf))
+		return 0;
+
+	return buf->size - NCB_RESERVED_SZ;
+}
+
+ncb_sz_t ncb_total_data(const struct ncbuf *buf);
+int ncb_is_empty(const struct ncbuf *buf);
+int ncb_is_full(const struct ncbuf *buf);
+int ncb_is_fragmented(const struct ncbuf *buf);
+
+ncb_sz_t ncb_data(const struct ncbuf *buf, ncb_sz_t offset);
+
+enum ncb_ret ncb_add(struct ncbuf *buf, ncb_sz_t off,
+                     const char *data, ncb_sz_t len, enum ncb_add_mode mode);
+enum ncb_ret ncb_advance(struct ncbuf *buf, ncb_sz_t adv);
+
+#endif /* _HAPROXY_NCBUF_H */