From 3388c48980e3071bdae9548bb2154f2ee429bb4f Mon Sep 17 00:00:00 2001
From: Valentin Balaschenko <13349202+vlntb@users.noreply.github.com>
Date: Mon, 23 Feb 2026 16:14:19 +0000
Subject: [PATCH] switching to std::int64_t

---
 include/xrpl/basics/MallocTrim.h  | 11 ++++++-----
 src/libxrpl/basics/MallocTrim.cpp |  5 ++++-
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/include/xrpl/basics/MallocTrim.h b/include/xrpl/basics/MallocTrim.h
index 828b707523..8a1b9f3ccb 100644
--- a/include/xrpl/basics/MallocTrim.h
+++ b/include/xrpl/basics/MallocTrim.h
@@ -3,6 +3,7 @@
 #include <xrpl/beast/utility/Journal.h>
 
 #include <chrono>
+#include <cstdint>
 #include <optional>
 #include <string>
 
@@ -28,13 +29,13 @@ struct MallocTrimReport
 {
     bool supported{false};
     int trimResult{-1};
-    long rssBeforeKB{-1};
-    long rssAfterKB{-1};
+    std::int64_t rssBeforeKB{-1};
+    std::int64_t rssAfterKB{-1};
     std::chrono::microseconds durationUs{-1};
-    long minfltDelta{-1};
-    long majfltDelta{-1};
+    std::int64_t minfltDelta{-1};
+    std::int64_t majfltDelta{-1};
 
-    [[nodiscard]] long
+    [[nodiscard]] std::int64_t
     deltaKB() const noexcept
     {
         if (rssBeforeKB < 0 || rssAfterKB < 0)
diff --git a/src/libxrpl/basics/MallocTrim.cpp b/src/libxrpl/basics/MallocTrim.cpp
index 0395c1fff8..91ff00bd30 100644
--- a/src/libxrpl/basics/MallocTrim.cpp
+++ b/src/libxrpl/basics/MallocTrim.cpp
@@ -4,6 +4,7 @@
 #include <boost/predef.h>
 
 #include <chrono>
+#include <cstdint>
 #include <cstdio>
 #include <fstream>
 #include <sstream>
@@ -128,7 +129,9 @@ mallocTrim([[maybe_unused]] std::optional<std::string> const& tag, beast::Journa
             report.majfltDelta = ru1.ru_majflt - ru0.ru_majflt;
         }
 
-        long const deltaKB = (rssBeforeKB < 0 || rssAfterKB < 0) ? 0 : (rssAfterKB - rssBeforeKB);
+        std::int64_t const deltaKB = (rssBeforeKB < 0 || rssAfterKB < 0)
+            ? 0
+            : (static_cast<std::int64_t>(rssAfterKB) - static_cast<std::int64_t>(rssBeforeKB));
 
         JLOG(journal.debug()) << "malloc_trim tag=" << tagStr << " result=" << report.trimResult
                               << " pad=" << TRIM_PAD << " bytes"