From 67e65a7959be0e3dee2fd2023a2c23217c50c1d8 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Tue, 17 Mar 2009 20:51:33 +0100
Subject: page: added page_new_concat()

---
 src/page.c | 11 +++++++++++
 src/page.h |  9 +++++++++
 2 files changed, 20 insertions(+)

(limited to 'src')

diff --git a/src/page.c b/src/page.c
index a4f52ae4..5ea03cd0 100644
--- a/src/page.c
+++ b/src/page.c
@@ -51,6 +51,17 @@ page_new_copy(const void *data, size_t size)
 	return page;
 }
 
+struct page *
+page_new_concat(const struct page *a, const struct page *b)
+{
+	struct page *page = page_new(a->size + b->size);
+
+	memcpy(page->data, a->data, a->size);
+	memcpy(page->data + a->size, b->data, b->size);
+
+	return page;
+}
+
 void
 page_ref(struct page *page)
 {
diff --git a/src/page.h b/src/page.h
index 6bee4996..a150e312 100644
--- a/src/page.h
+++ b/src/page.h
@@ -64,6 +64,15 @@ struct page {
 struct page *
 page_new_copy(const void *data, size_t size);
 
+/**
+ * Concatenates two pages to a new page.
+ *
+ * @param a the first page
+ * @param b the second page, which is appended
+ */
+struct page *
+page_new_concat(const struct page *a, const struct page *b);
+
 /**
  * Increases the reference counter.
  *
-- 
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