From 9c5dd8378120ab096db67bd479bd4455d391f124 Mon Sep 17 00:00:00 2001
From: Richard Aas <richard@db.org>
Date: Mon, 29 Apr 2013 10:43:38 +0000
Subject: [PATCH] added mbuf_fill()

---
 include/re_mbuf.h |  1 +
 src/mbuf/mbuf.c   | 37 +++++++++++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+)

diff --git a/include/re_mbuf.h b/include/re_mbuf.h
index 391067f..2d2ff1d 100644
--- a/include/re_mbuf.h
+++ b/include/re_mbuf.h
@@ -64,6 +64,7 @@ int      mbuf_vprintf(struct mbuf *mb, const char *fmt, va_list ap);
 int      mbuf_printf(struct mbuf *mb, const char *fmt, ...);
 int      mbuf_write_pl_skip(struct mbuf *mb, const struct pl *pl,
 			    const struct pl *skip);
+int      mbuf_fill(struct mbuf *mb, uint8_t c, size_t n);
 int      mbuf_debug(struct re_printf *pf, const struct mbuf *mb);
 
 
diff --git a/src/mbuf/mbuf.c b/src/mbuf/mbuf.c
index e8f73fc..e0ba1c7 100644
--- a/src/mbuf/mbuf.c
+++ b/src/mbuf/mbuf.c
@@ -511,6 +511,43 @@ int mbuf_write_pl_skip(struct mbuf *mb, const struct pl *pl,
 }
 
 
+/**
+ * Write n bytes of value 'c' to a memory buffer
+ *
+ * @param mb   Memory buffer
+ * @param c    Value to write
+ * @param n    Number of bytes to write
+ *
+ * @return 0 if success, otherwise errorcode
+ */
+int mbuf_fill(struct mbuf *mb, uint8_t c, size_t n)
+{
+	size_t rsize;
+
+	if (!mb || !n)
+		return EINVAL;
+
+	rsize = mb->pos + n;
+
+	if (rsize > mb->size) {
+		const size_t dsize = mb->size ? (mb->size * 2)
+			: DEFAULT_SIZE;
+		int err;
+
+		err = mbuf_resize(mb, MAX(rsize, dsize));
+		if (err)
+			return err;
+	}
+
+	memset(mb->buf + mb->pos, c, n);
+
+	mb->pos += n;
+	mb->end  = MAX(mb->end, mb->pos);
+
+	return 0;
+}
+
+
 /**
  * Debug the memory buffer
  *