X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/80e2389990082500d76eb566d4946be3e786c3ef..d8f41ccd20de16f8ebe2ccc84d47bf1cb2b26bbb:/Security/libsecurity_transform/lib/LinkedList.cpp

diff --git a/Security/libsecurity_transform/lib/LinkedList.cpp b/Security/libsecurity_transform/lib/LinkedList.cpp
new file mode 100644
index 00000000..cbb22e5b
--- /dev/null
+++ b/Security/libsecurity_transform/lib/LinkedList.cpp
@@ -0,0 +1,29 @@
+#include "LinkedList.h"
+
+
+
+LinkedListHeader::LinkedListHeader()
+{
+	mBackward = mForward = this;
+}
+
+
+
+LinkedListHeader::~LinkedListHeader()
+{
+	// unlink the item
+	mBackward->mForward = mForward;
+	mForward->mBackward = mBackward;
+}
+
+
+
+void LinkedListHeader::InsertAfter(LinkedListHeader* header)
+{
+	// add to the chain
+	header->mForward = mForward;
+	mForward->mBackward = header;
+	header->mBackward = this;
+	mForward = header;
+}
+