From f4346534322372edcb92398e3b137cbfa1d741f2 Mon Sep 17 00:00:00 2001
From: Heng Li <lh3@me.com>
Date: Sat, 17 Feb 2018 20:40:31 -0500
Subject: [PATCH] added peakrss(); not used for now

---
 misc.c   | 14 ++++++++++++++
 mmpriv.h |  1 +
 2 files changed, 15 insertions(+)

diff --git a/misc.c b/misc.c
index 2667e2b..acf2f6c 100644
--- a/misc.c
+++ b/misc.c
@@ -86,6 +86,8 @@ double cputime()
 
 	return kernelModeTime + userModeTime;
 }
+
+long peakrss(void) { return 0; }
 #else
 #include <sys/resource.h>
 #include <sys/time.h>
@@ -96,6 +98,18 @@ double cputime(void)
 	getrusage(RUSAGE_SELF, &r);
 	return r.ru_utime.tv_sec + r.ru_stime.tv_sec + 1e-6 * (r.ru_utime.tv_usec + r.ru_stime.tv_usec);
 }
+
+long peakrss(void)
+{
+	struct rusage r;
+	getrusage(RUSAGE_SELF, &r);
+#ifdef __linux__
+	return r.ru_maxrss * 1024;
+#else
+	return r.ru_maxrss;
+#endif
+}
+
 #endif /* WIN32 || _WIN32 */
 
 double realtime(void)
diff --git a/mmpriv.h b/mmpriv.h
index 3279695..176743a 100644
--- a/mmpriv.h
+++ b/mmpriv.h
@@ -48,6 +48,7 @@ typedef struct {
 
 double cputime(void);
 double realtime(void);
+long peakrss(void);
 
 void radix_sort_128x(mm128_t *beg, mm128_t *end);
 void radix_sort_64(uint64_t *beg, uint64_t *end);