xutils: break out string handling and locking

Break out all string handling functions and lockme stuff in order
to further eliminate the big code blob in xutils, so that it can
be easier maintained.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/lockme.h b/lockme.h
new file mode 100644
index 0000000..7cce97b
--- /dev/null
+++ b/lockme.h
@@ -0,0 +1,19 @@
+#ifndef LOCKME_H
+#define LOCKME_H
+
+#include <sys/mman.h>
+
+#include "die.h"
+
+static inline void xlockme(void)
+{
+	if (mlockall(MCL_CURRENT | MCL_FUTURE) != 0)
+		panic("Cannot lock pages!\n");
+}
+
+static inline void xunlockme(void)
+{
+	munlockall();
+}
+
+#endif /* LOCKME_H */