From 9b45f323d0047c4ac6fbf56dfb80a44d8ec45d4a Mon Sep 17 00:00:00 2001
From: David Zafman <dzafman@redhat.com>
Date: Thu, 8 Aug 2019 18:06:43 -0700
Subject: [PATCH] common: Add support routines to generate strings for fixed
 point

Signed-off-by: David Zafman <dzafman@redhat.com>
(cherry picked from commit 8ac1562b4988fc3d52f92f15eb58075de0bcf27e)

Conflicts:
	src/common/Formatter.h (trivial)
---
 src/common/Formatter.cc | 26 ++++++++++++++++++++++++++
 src/common/Formatter.h  |  3 ++-
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/src/common/Formatter.cc b/src/common/Formatter.cc
index 2264c71171bc0..6450859a599ac 100644
--- a/src/common/Formatter.cc
+++ b/src/common/Formatter.cc
@@ -24,6 +24,32 @@
 // -----------------------
 namespace ceph {
 
+std::string
+fixed_u_to_string(uint64_t num, int scale)
+{
+	std::ostringstream t;
+
+	t.fill('0');
+	t.width(scale + 1);
+	t << num;
+	int len = t.str().size();
+	return t.str().substr(0,len - scale) + "." + t.str().substr(len - scale);
+}
+
+std::string
+fixed_to_string(int64_t num, int scale)
+{
+	std::ostringstream t;
+	bool neg = num < 0;
+	if (neg) num = -num;
+
+	t.fill('0');
+	t.width(scale + 1);
+	t << num;
+	int len = t.str().size();
+	return (neg ? "-" : "") + t.str().substr(0,len - scale) + "." + t.str().substr(len - scale);
+}
+
 /*
  * FormatterAttrs(const char *attr, ...)
  *
diff --git a/src/common/Formatter.h b/src/common/Formatter.h
index 4a9ac3210e083..3e9e1df9f6569 100644
--- a/src/common/Formatter.h
+++ b/src/common/Formatter.h
@@ -254,6 +254,7 @@ namespace ceph {
     std::vector< std::string > m_column_name;
   };
 
-
+  std::string fixed_to_string(int64_t num, int scale);
+  std::string fixed_u_to_string(uint64_t num, int scale);
 }
 #endif
-- 
2.39.5