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authorMatthew Hodgson <matthew@matrix.org>2015-06-27 01:15:23 +0200
committerMatthew Hodgson <matthew@matrix.org>2015-06-27 01:15:23 +0200
commit09d4125ff164f5ca686d12ccb0790c35ce721a6b (patch)
tree7ac8192180180705327d5090c5e603f54ddde2a0 /include/olm/memory.hh
parentfe958472453b1bac99854a419ef667d8f2cd351d (diff)
Rename axolotlpp as olm to avoid confusion with Axolotl-the-spec and Axolotl-the-OWS-libraries at moxie's request
Diffstat (limited to 'include/olm/memory.hh')
-rw-r--r--include/olm/memory.hh38
1 files changed, 38 insertions, 0 deletions
diff --git a/include/olm/memory.hh b/include/olm/memory.hh
new file mode 100644
index 0000000..b19c74b
--- /dev/null
+++ b/include/olm/memory.hh
@@ -0,0 +1,38 @@
+/* Copyright 2015 OpenMarket Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <cstddef>
+#include <cstdint>
+
+namespace olm {
+
+/** Clear the memory held in the buffer */
+void unset(
+ void volatile * buffer, std::size_t buffer_length
+);
+
+/** Clear the memory backing an object */
+template<typename T>
+void unset(T & value) {
+ unset(reinterpret_cast<void volatile *>(&value), sizeof(T));
+}
+
+/** Check if two buffers are equal in constant time. */
+bool is_equal(
+ std::uint8_t const * buffer_a,
+ std::uint8_t const * buffer_b,
+ std::size_t length
+);
+
+} // namespace olm