1 files changed, 48 insertions, 0 deletions
diff --git a/build/win32/procmem.py b/build/win32/procmem.py
new file mode 100644
index 0000000000..8376d07ea4
--- /dev/null
+++ b/build/win32/procmem.py
@@ -0,0 +1,48 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+import os, sys, ctypes, ctypes.wintypes
+
+class VM_COUNTERS(ctypes.Structure):
+    _fields_ = [("PeakVirtualSize", ctypes.wintypes.ULONG),
+                ("VirtualSize", ctypes.wintypes.ULONG),
+                ("PageFaultCount", ctypes.wintypes.ULONG),
+                ("PeakWorkingSetSize", ctypes.wintypes.ULONG),
+                ("WorkingSetSize", ctypes.wintypes.ULONG),
+                ("QuotaPeakPagedPoolUsage", ctypes.wintypes.ULONG),
+                ("QuotaPagedPoolUsage", ctypes.wintypes.ULONG),
+                ("QuotaPeakNonPagedPoolUsage", ctypes.wintypes.ULONG),
+                ("QuotaNonPagedPoolUsage", ctypes.wintypes.ULONG),
+                ("PagefileUsage", ctypes.wintypes.ULONG),
+                ("PeakPagefileUsage", ctypes.wintypes.ULONG)
+                ]
+
+def get_vmsize(handle):
+    """
+    Return (peak_virtual_size, virtual_size) for the process |handle|.
+    """
+    ProcessVmCounters = 3
+    vmc = VM_COUNTERS()
+    if ctypes.windll.ntdll.NtQueryInformationProcess(int(handle),
+                                                     ProcessVmCounters,
+                                                     ctypes.byref(vmc),
+                                                     ctypes.sizeof(vmc),
+                                                     None) == 0:
+       return (vmc.PeakVirtualSize, vmc.VirtualSize)
+
+    return (-1, -1)
+
+if __name__ == '__main__':
+    PROCESS_QUERY_INFORMATION = 0x0400
+    for pid in sys.argv[1:]:
+        handle = ctypes.windll.kernel32.OpenProcess(PROCESS_QUERY_INFORMATION,
+                                                    0, # no inherit
+                                                    int(pid))
+        if handle:
+            print "Process %s:" % pid
+            vsize, peak_vsize = get_vmsize(handle)
+            print "peak vsize: %d" % peak_vsize
+            ctypes.windll.kernel32.CloseHandle(handle)
+        else:
+            print "Couldn't open process %s" % pid