MINOR: chunk: add chunk_cpy() and chunk_cat()
Sometimes we need to concatenate constant chunks to existing ones, but
no function currently exists to do this easily, hence these two new ones.
diff --git a/include/common/chunk.h b/include/common/chunk.h
index 383e157..ffcb93c 100644
--- a/include/common/chunk.h
+++ b/include/common/chunk.h
@@ -96,6 +96,28 @@
chk->size = 0; /* mark it read-only */
}
+/* copies chunk <src> into <chk>. Returns 0 in case of failure. */
+static inline int chunk_cpy(struct buffer *chk, const struct buffer *src)
+{
+ if (unlikely(src->data >= chk->size))
+ return 0;
+
+ chk->data = src->data;
+ memcpy(chk->area, src->area, src->data);
+ return 1;
+}
+
+/* appends chunk <src> after <chk>. Returns 0 in case of failure. */
+static inline int chunk_cat(struct buffer *chk, const struct buffer *src)
+{
+ if (unlikely(chk->data + src->data >= chk->size))
+ return 0;
+
+ memcpy(chk->area + chk->data, src->area, src->data);
+ chk->data += src->data;
+ return 1;
+}
+
/* copies memory area <src> into <chk> for <len> bytes. Returns 0 in
* case of failure. No trailing zero is added.
*/