Adding upstream version 1.7.3.upstream/1.7.3upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 38 insertions, 0 deletions

diff --git a/circular_buffer.hh b/circular_buffer.hh
new file mode 100644
index 0000000..eb1dbb9
--- /dev/null
+++ b/circular_buffer.hh
@@ -0,0 +1,38 @@
+/*
+ * This file is part of PowerDNS or dnsdist.
+ * Copyright -- PowerDNS.COM B.V. and its contributors
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * In addition, for the avoidance of any doubt, permission is granted to
+ * link this program with OpenSSL and to (re)distribute the binaries
+ * produced as the result of such linking.
+ *
+ * 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#pragma once
+
+// Disable the non-threadsafe debug code in boost::circular_buffer before 1.62
+#define BOOST_CB_DISABLE_DEBUG 1
+
+// Make sure it is also disabled when >= 1.62
+#ifndef BOOST_CB_ENABLE_DEBUG
+#define BOOST_CB_ENABLE_DEBUG 0
+#endif
+
+#if BOOST_CB_ENABLE_DEBUG
+// https://github.com/boostorg/circular_buffer/pull/9
+// https://svn.boost.org/trac10/ticket/6277
+#error Building with BOOST_CB_ENABLE_DEBUG prevents accessing a boost::circular_buffer from more than one thread at once
+#endif /* BOOST_CB_ENABLE_DEBUG */
+
+#include <boost/circular_buffer.hpp>