1 files changed, 53 insertions, 0 deletions
diff --git a/src/osd/error_code.h b/src/osd/error_code.h
new file mode 100644
index 000000000..d36e79db4
--- /dev/null
+++ b/src/osd/error_code.h
@@ -0,0 +1,53 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2019 Red Hat <contact@redhat.com>
+ * Author: Adam C. Emerson <aemerson@redhat.com>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ *
+ */
+
+#pragma once
+
+#include <boost/system/error_code.hpp>
+
+#include "include/rados.h"
+
+const boost::system::error_category& osd_category() noexcept;
+
+// Since the OSD mostly uses POSIX error codes plus a couple
+// additions, this will be a degenerate error category for now that
+// mostly forwards to POSIX.
+
+enum class osd_errc {
+  old_snapc = 85,  /* ORDERSNAP flag set; writer has old snapc*/
+  blocklisted = 108 /* blocklisted */
+};
+
+namespace boost::system {
+template<>
+struct is_error_code_enum<::osd_errc> {
+  static const bool value = true;
+};
+
+template<>
+struct is_error_condition_enum<::osd_errc> {
+  static const bool value = false;
+};
+}
+
+//  implicit conversion:
+inline boost::system::error_code make_error_code(osd_errc e) noexcept {
+  return { static_cast<int>(e), osd_category() };
+}
+
+// explicit conversion:
+inline boost::system::error_condition make_error_condition(osd_errc e) noexcept {
+  return { static_cast<int>(e), osd_category() };
+}