Initial commit from Polytechnique Montreal

1 files changed, 44 insertions, 0 deletions

diff --git a/Ganlib/src/getusage.c b/Ganlib/src/getusage.c
new file mode 100644
index 0000000..c5b484a
--- /dev/null
+++ b/Ganlib/src/getusage.c
@@ -0,0 +1,44 @@
+/*
+   -----------------------------------------------------------------------
+   Copyright (C) 2019 Ecole Polytechnique de Montreal
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   RECOVER USER ALLOCATED MEMORY USED
+
+   -----------------------------------------------------------------------
+ */
+
+#include <stdio.h>
+#ifndef MSDOS
+#include <sys/time.h>
+#include <sys/resource.h>
+
+double getusage()
+{
+   struct rusage r_usage;
+   getrusage(RUSAGE_SELF, &r_usage);
+   double utime=(double) r_usage.ru_maxrss;
+   return utime;
+#else
+#include <windows.h>
+#include <psapi.h>
+
+double getusage()
+{
+    HANDLE h_process = GetCurrentProcess();
+    PROCESS_MEMORY_COUNTERS pmc;
+
+    if(GetProcessMemoryInfo(h_process, &pmc, sizeof(pmc))) {
+        // The *nix equivalent is expressed in KB, but Windows uses bytes
+        SIZE_T mem_kb = pmc.WorkingSetSize / 1024;
+        return (double)mem_kb;
+    } else {
+        return 0.0;
+    }
+}
+#endif
+}