Adding upstream version 18.2.2.upstream/18.2.2

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

1 files changed, 69 insertions, 0 deletions

diff --git a/src/exporter/util.cc b/src/exporter/util.cc
new file mode 100644
index 000000000..06a8338b8
--- /dev/null
+++ b/src/exporter/util.cc
@@ -0,0 +1,69 @@
+#include "util.h"
+
+#include <boost/algorithm/string/classification.hpp>
+#include <boost/algorithm/string/replace.hpp>
+#include <cctype>
+#include <chrono>
+#include <fstream>
+#include <iostream>
+#include <sstream>
+
+#include "common/debug.h"
+
+#define dout_context g_ceph_context
+#define dout_subsys ceph_subsys_ceph_exporter
+
+BlockTimer::BlockTimer(std::string file, std::string function)
+	: file(file), function(function), stopped(false) {
+	t1 = std::chrono::high_resolution_clock::now();
+}
+BlockTimer::~BlockTimer() {
+  dout(20) << file << ":" << function << ": " << ms.count() << "ms" << dendl;
+}
+
+// useful with stop
+double BlockTimer::get_ms() {
+	return ms.count();
+}
+
+// Manually stop the timer as you might want to get the time
+void BlockTimer::stop() {
+	if (!stopped) {
+		stopped = true;
+		t2 = std::chrono::high_resolution_clock::now();
+		ms = t2 - t1;
+	}
+}
+
+bool string_is_digit(std::string s) {
+	size_t i = 0;
+	while (std::isdigit(s[i]) && i < s.size()) {
+		i++;
+	}
+	return i >= s.size();
+}
+
+std::string read_file_to_string(std::string path) {
+	std::ifstream is(path);
+	std::stringstream buffer;
+	buffer << is.rdbuf();
+	return buffer.str();
+}
+
+// Must be kept in sync with promethize() in src/pybind/mgr/prometheus/module.py
+void promethize(std::string &name) {
+  if (name[name.size() - 1] == '-') {
+    name[name.size() - 1] = '_';
+    name += "minus";
+  }
+
+  auto should_be_underscore = [](char ch) {
+    return ch == '.' || ch == '/' || ch == ' ' || ch == '-';
+  };
+  std::replace_if(name.begin(), name.end(), should_be_underscore, '_');
+
+  boost::replace_all(name, "::", "_");
+  boost::replace_all(name, "+", "_plus");
+
+  name = "ceph_" + name;
+}