import quincy beta 17.1.0

[ceph.git] / ceph / src / msg / msg_fmt.h

diff --git a/ceph/src/msg/msg_fmt.h b/ceph/src/msg/msg_fmt.h
new file mode 100644 (file)
index 0000000..5ed4ca9
--- /dev/null
+++ b/ceph/src/msg/msg_fmt.h
@@ -0,0 +1,26 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+#pragma once
+
+/**
+ * \file fmtlib formatters for some msg_types.h classes
+ */
+
+#include <fmt/format.h>
+
+#include "include/types_fmt.h"
+#include "msg/msg_types.h"
+
+template <>
+struct fmt::formatter<entity_name_t> {
+  constexpr auto parse(format_parse_context& ctx) { return ctx.begin(); }
+
+  template <typename FormatContext>
+  auto format(const entity_name_t& addr, FormatContext& ctx)
+  {
+    if (addr.is_new() || addr.num() < 0) {
+      return fmt::format_to(ctx.out(), "{}.?", addr.type_str());
+    }
+    return fmt::format_to(ctx.out(), "{}.{}", addr.type_str(), addr.num());
+  }
+};