From e6bf2bcafc41319a22945e98f50906149527ff51 Mon Sep 17 00:00:00 2001
From: Giampaolo Rodola <g.rodola@gmail.com>
Date: Mon, 10 Apr 2023 13:17:26 -0700
Subject: move psutil_virtual_mem() in a new mem.c file

---
 psutil/_psutil_windows.c  | 30 +-----------------------------
 psutil/arch/windows/mem.c | 35 +++++++++++++++++++++++++++++++++++
 psutil/arch/windows/mem.h |  9 +++++++++
 setup.py                  |  1 +
 4 files changed, 46 insertions(+), 29 deletions(-)
 create mode 100644 psutil/arch/windows/mem.c
 create mode 100644 psutil/arch/windows/mem.h

diff --git a/psutil/_psutil_windows.c b/psutil/_psutil_windows.c
index 6e51c449..969c5713 100644
--- a/psutil/_psutil_windows.c
+++ b/psutil/_psutil_windows.c
@@ -33,6 +33,7 @@
 #include "arch/windows/process_handles.h"
 #include "arch/windows/disk.h"
 #include "arch/windows/cpu.h"
+#include "arch/windows/mem.h"
 #include "arch/windows/net.h"
 #include "arch/windows/services.h"
 #include "arch/windows/socks.h"
@@ -603,35 +604,6 @@ psutil_proc_memory_uss(PyObject *self, PyObject *args) {
     return Py_BuildValue("I", wsCounters.NumberOfPrivatePages);
 }
 
-
-/*
- * Return a Python integer indicating the total amount of physical memory
- * in bytes.
- */
-static PyObject *
-psutil_virtual_mem(PyObject *self, PyObject *args) {
-    unsigned long long totalPhys, availPhys, totalSys, availSys, pageSize;
-    PERFORMANCE_INFORMATION perfInfo;
-
-    if (! GetPerformanceInfo(&perfInfo, sizeof(PERFORMANCE_INFORMATION))) {
-        PyErr_SetFromWindowsErr(0);
-        return NULL;
-    }
-    // values are size_t, widen (if needed) to long long
-    pageSize = perfInfo.PageSize;
-    totalPhys = perfInfo.PhysicalTotal * pageSize;
-    availPhys = perfInfo.PhysicalAvailable * pageSize;
-    totalSys = perfInfo.CommitLimit * pageSize;
-    availSys = totalSys - perfInfo.CommitTotal * pageSize;
-    return Py_BuildValue(
-        "(LLLL)",
-        totalPhys,
-        availPhys,
-        totalSys,
-        availSys);
-}
-
-
 /*
  * Return process current working directory as a Python string.
  */
diff --git a/psutil/arch/windows/mem.c b/psutil/arch/windows/mem.c
new file mode 100644
index 00000000..8b678254
--- /dev/null
+++ b/psutil/arch/windows/mem.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2009, Jay Loden, Giampaolo Rodola'. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <Python.h>
+#include <windows.h>
+#include <Psapi.h>
+
+#include "../../_psutil_common.h"
+
+
+PyObject *
+psutil_virtual_mem(PyObject *self, PyObject *args) {
+    unsigned long long totalPhys, availPhys, totalSys, availSys, pageSize;
+    PERFORMANCE_INFORMATION perfInfo;
+
+    if (! GetPerformanceInfo(&perfInfo, sizeof(PERFORMANCE_INFORMATION))) {
+        PyErr_SetFromWindowsErr(0);
+        return NULL;
+    }
+    // values are size_t, widen (if needed) to long long
+    pageSize = perfInfo.PageSize;
+    totalPhys = perfInfo.PhysicalTotal * pageSize;
+    availPhys = perfInfo.PhysicalAvailable * pageSize;
+    totalSys = perfInfo.CommitLimit * pageSize;
+    availSys = totalSys - perfInfo.CommitTotal * pageSize;
+    return Py_BuildValue(
+        "(LLLL)",
+        totalPhys,
+        availPhys,
+        totalSys,
+        availSys);
+}
diff --git a/psutil/arch/windows/mem.h b/psutil/arch/windows/mem.h
new file mode 100644
index 00000000..871cd64e
--- /dev/null
+++ b/psutil/arch/windows/mem.h
@@ -0,0 +1,9 @@
+/*
+ * Copyright (c) 2009, Jay Loden, Giampaolo Rodola'. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <Python.h>
+
+PyObject *psutil_virtual_mem(PyObject* self, PyObject* args);
diff --git a/setup.py b/setup.py
index 4e6f6f17..a4f719b2 100755
--- a/setup.py
+++ b/setup.py
@@ -214,6 +214,7 @@ if WINDOWS:
             'psutil/arch/windows/process_info.c',
             'psutil/arch/windows/process_handles.c',
             'psutil/arch/windows/disk.c',
+            'psutil/arch/windows/mem.c',
             'psutil/arch/windows/net.c',
             'psutil/arch/windows/cpu.c',
             'psutil/arch/windows/security.c',
-- 
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