Address review comments

src/citra_qt/main.cpp

@@ -61,6 +61,7 @@
 #include "common/common_paths.h"
 #include "common/detached_tasks.h"
 #include "common/file_util.h"
+#include "common/literals.h"
 #include "common/logging/backend.h"
 #include "common/logging/filter.h"
 #include "common/logging/log.h"
@@ -214,10 +215,10 @@ GMainWindow::GMainWindow()
     LOG_INFO(Frontend, "Host CPU: {}", cpu_string);
 #endif
     LOG_INFO(Frontend, "Host OS: {}", QSysInfo::prettyProductName().toStdString());
-    LOG_INFO(Frontend, "Host RAM: {:.2f} GB",
-             Common::GetMemInfo().TotalPhysicalMemory / 1024.0f / 1024 / 1024);
-    LOG_INFO(Frontend, "Host Swap: {:.2f} GB",
-             Common::GetMemInfo().TotalSwapMemory / 1024.0f / 1024 / 1024);
+    const auto& mem_info = Common::GetMemInfo();
+    using namespace Common::Literals;
+    LOG_INFO(Frontend, "Host RAM: {:.2f} GiB", mem_info.total_physical_memory / f64{1_GiB});
+    LOG_INFO(Frontend, "Host Swap: {:.2f} GiB", mem_info.total_swap_memory / f64{1_GiB});
     UpdateWindowTitle();
 
     show();

src/common/CMakeLists.txt

@@ -74,6 +74,7 @@ add_library(common STATIC
     file_util.h
     hash.h
     linear_disk_cache.h
+    literals.h
     logging/backend.cpp
     logging/backend.h
     logging/filter.cpp

src/common/literals.h

@@ -0,0 +1,31 @@
+// Copyright 2021 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_types.h"
+
+namespace Common::Literals {
+
+constexpr u64 operator""_KiB(unsigned long long int x) {
+    return 1024ULL * x;
+}
+
+constexpr u64 operator""_MiB(unsigned long long int x) {
+    return 1024_KiB * x;
+}
+
+constexpr u64 operator""_GiB(unsigned long long int x) {
+    return 1024_MiB * x;
+}
+
+constexpr u64 operator""_TiB(unsigned long long int x) {
+    return 1024_GiB * x;
+}
+
+constexpr u64 operator""_PiB(unsigned long long int x) {
+    return 1024_TiB * x;
+}
+
+} // namespace Common::Literals

src/common/memory_detect.cpp

@@ -3,10 +3,9 @@
 // Refer to the license.txt file included.
 
 #ifdef _WIN32
-// clang-format off
 #include <windows.h>
+// Depends on <windows.h> coming first
 #include <sysinfoapi.h>
-// clang-format on
 #else
 #include <sys/types.h>
 #if defined(__APPLE__) || defined(__FreeBSD__)
@@ -23,15 +22,15 @@
 namespace Common {
 
 // Detects the RAM and Swapfile sizes
-static MemoryInfo Detect() {
+const MemoryInfo GetMemInfo() {
     MemoryInfo mem_info{};
 
 #ifdef _WIN32
     MEMORYSTATUSEX memorystatus;
     memorystatus.dwLength = sizeof(memorystatus);
     GlobalMemoryStatusEx(&memorystatus);
-    mem_info.TotalPhysicalMemory = memorystatus.ullTotalPhys;
-    mem_info.TotalSwapMemory = memorystatus.ullTotalPageFile - mem_info.TotalPhysicalMemory;
+    mem_info.total_physical_memory = memorystatus.ullTotalPhys;
+    mem_info.total_swap_memory = memorystatus.ullTotalPageFile - mem_info.total_physical_memory;
 #elif defined(__APPLE__)
     u64 ramsize;
     struct xsw_usage vmusage;
@@ -42,32 +41,27 @@ static MemoryInfo Detect() {
     // sysctlbyname(const char *, void *, size_t *, void *, size_t);
     sysctlbyname("hw.memsize", &ramsize, &sizeof_ramsize, nullptr, 0);
     sysctlbyname("vm.swapusage", &vmusage, &sizeof_vmusage, nullptr, 0);
-    mem_info.TotalPhysicalMemory = ramsize;
-    mem_info.TotalSwapMemory = vmusage.xsu_total;
+    mem_info.total_physical_memory = ramsize;
+    mem_info.total_swap_memory = vmusage.xsu_total;
 #elif defined(__FreeBSD__)
     u_long physmem, swap_total;
     std::size_t sizeof_u_long = sizeof(u_long);
     // sysctlbyname(const char *, void *, size_t *, const void *, size_t);
     sysctlbyname("hw.physmem", &physmem, &sizeof_u_long, nullptr, 0);
     sysctlbyname("vm.swap_total", &swap_total, &sizeof_u_long, nullptr, 0);
-    mem_info.TotalPhysicalMemory = physmem;
-    mem_info.TotalSwapMemory = swap_total;
+    mem_info.total_physical_memory = physmem;
+    mem_info.total_swap_memory = swap_total;
 #elif defined(__linux__)
     struct sysinfo meminfo;
     sysinfo(&meminfo);
-    mem_info.TotalPhysicalMemory = meminfo.totalram;
-    mem_info.TotalSwapMemory = meminfo.totalswap;
+    mem_info.total_physical_memory = meminfo.totalram;
+    mem_info.total_swap_memory = meminfo.totalswap;
 #else
-    mem_info.TotalPhysicalMemory = sysconf(_SC_PHYS_PAGES) * sysconf(_SC_PAGE_SIZE);
-    mem_info.TotalSwapMemory = 0;
+    mem_info.total_physical_memory = sysconf(_SC_PHYS_PAGES) * sysconf(_SC_PAGE_SIZE);
+    mem_info.total_swap_memory = 0;
 #endif
 
     return mem_info;
 }
 
-const MemoryInfo& GetMemInfo() {
-    static MemoryInfo mem_info = Detect();
-    return mem_info;
-}
-
 } // namespace Common

src/common/memory_detect.h

@@ -9,14 +9,14 @@
 namespace Common {
 
 struct MemoryInfo {
-    u64 TotalPhysicalMemory{};
-    u64 TotalSwapMemory{};
+    u64 total_physical_memory{};
+    u64 total_swap_memory{};
 };
 
 /**
  * Gets the memory info of the host system
  * @return Reference to a MemoryInfo struct with the physical and swap memory sizes in bytes
  */
-const MemoryInfo& GetMemInfo();
+[[nodiscard]] const MemoryInfo GetMemInfo();
 
 } // namespace Common