add support for "live"-flashing new settings.

1 files changed, 38 insertions, 0 deletions

diff --git a/src/tempmodule/volatile_ops.c b/src/tempmodule/volatile_ops.c
new file mode 100644
index 0000000..432955a
--- /dev/null
+++ b/src/tempmodule/volatile_ops.c
@@ -0,0 +1,38 @@
+/*
+ * Hot Beverage Companion – volatile data ops
+ *
+ * Copyright (C) 2018 Gediminas Jakutis
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; version 2.1
+ * of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include "volatile_ops.h"
+
+void *volatile_memcpy(void *dest, volatile const void * const src, size_t n)
+{
+	char *d;
+	volatile const char *s;
+
+	if (!n) {
+		return dest;
+	}
+
+	d = dest;
+	s = src;
+
+	while (n--) {
+		d[n] = s[n];
+	}
+}