From 1678cdbdddd4cc4c0cfe63e28150731cd1e5038c Mon Sep 17 00:00:00 2001
From: Michele Caini <michele.caini@gmail.com>
Date: Thu, 3 Oct 2024 14:22:44 +0200
Subject: [PATCH] utility: resident_set_memory

---
 src/uvw/util.cpp | 6 ++++++
 src/uvw/util.h   | 7 +++++++
 2 files changed, 13 insertions(+)

diff --git a/src/uvw/util.cpp b/src/uvw/util.cpp
index 4e2fff35..6d90b8d2 100644
--- a/src/uvw/util.cpp
+++ b/src/uvw/util.cpp
@@ -313,6 +313,12 @@ UVW_INLINE uint64_t utilities::available_memory() noexcept {
     return uv_get_available_memory();
 }
 
+UVW_INLINE int64_t utilities::resident_set_memory() noexcept {
+    size_t res{};
+    const auto err = uv_resident_set_memory(&res);
+    return (err == 0) ? static_cast<int64_t>(res) : static_cast<int64_t>(err);
+}
+
 UVW_INLINE double utilities::uptime() noexcept {
     double ret;
 
diff --git a/src/uvw/util.h b/src/uvw/util.h
index 0b549e19..0aec1933 100644
--- a/src/uvw/util.h
+++ b/src/uvw/util.h
@@ -610,6 +610,13 @@ struct utilities {
      */
     static uint64_t available_memory() noexcept;
 
+    /**
+     * @brief Gets the resident set size (RSS) for the current process.
+     * @return The resident set size (RSS) for the current process or a negative
+     * value in case of errors.
+     */
+    static int64_t resident_set_memory() noexcept;
+
     /**
      * @brief Gets the current system uptime.
      * @return The current system uptime or 0 in case of errors.