feat: add rss record

include/Cubed/tools/memory_used.hpp

@@ -0,0 +1,26 @@
+#pragma once
+#ifdef _WIN32
+#include <windows.h>
+#include <psapi.h>
+#else
+#include <sys/resource.h>
+#include <unistd.h>
+#include <fstream>
+#endif
+
+inline size_t get_current_rss() {
+#ifdef _WIN32
+    PROCESS_MEMORY_COUNTERS_EX pmc;
+    if (GetProcessMemoryInfo(GetCurrentProcess(), (PROCESS_MEMORY_COUNTERS*)&pmc, sizeof(pmc))) {
+        return pmc.WorkingSetSize;
+    }
+    return 0;
+#else
+    std::ifstream statm("/proc/self/statm");
+    long vsz = 0, rss_pages = 0;
+    statm >> vsz >> rss_pages;
+    statm.close();
+    long page_size = sysconf(_SC_PAGESIZE);
+    return rss_pages * page_size;
+#endif
+}