tools/osdmaptool.cc: do not use deprecated std::random_shuffle()

the use of `std::random_shuffle()` was introduced by
b946308 .

in this change, it is replaced using `std::shuffle()`.

Fixes: https://tracker.ceph.com/issues/43084
Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/src/tools/osdmaptool.cc b/src/tools/osdmaptool.cc
index 5221c4f79fc5a69e4b3f47080448b6022fd511a0..6a2f679952418cfef74ff6812297bad7bf300523 100644 (file)
--- a/src/tools/osdmaptool.cc
+++ b/src/tools/osdmaptool.cc
@@ -433,8 +433,8 @@ int main(int argc, const char **argv)
     vector<int> rules;
     for (auto& r: pools_by_rule)
       rules.push_back(r.first);
-    srand(time(0));
-    random_shuffle (rules.begin(), rules.end());
+    std::random_device rd;
+    std::shuffle(rules.begin(), rules.end(), std::mt19937{rd()});
     if (debug) {
       for (auto& r: rules)
         cout << "rule: " << r << " " << pools_by_rule[r] << std::endl;