From a15854bd92db69fcd0b4444fe1b8fe3610a7acf6 Mon Sep 17 00:00:00 2001
From: Martin Lucina <martin@lucina.net>
Date: Mon, 23 Jan 2012 08:53:19 +0100
Subject: Imported Upstream version 2.0.7.dfsg

---
 perf/helpers.cpp | 86 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 perf/helpers.cpp

(limited to 'perf/helpers.cpp')

diff --git a/perf/helpers.cpp b/perf/helpers.cpp
new file mode 100644
index 0000000..94b653f
--- /dev/null
+++ b/perf/helpers.cpp
@@ -0,0 +1,86 @@
+/*
+    Copyright (c) 2007-2010 iMatix Corporation
+
+    This file is part of 0MQ.
+
+    0MQ is free software; you can redistribute it and/or modify it under
+    the terms of the Lesser GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    0MQ is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    Lesser GNU General Public License for more details.
+
+    You should have received a copy of the Lesser GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <assert.h>
+#include <stdlib.h>
+#ifdef _WIN32
+#   include "../src/windows.hpp"
+#else
+#   include <sys/time.h>
+#   include <unistd.h>
+#endif
+#include "../src/stdint.hpp"
+
+#ifdef _WIN32
+
+static uint64_t now ()
+{    
+    //  Get the high resolution counter's accuracy.
+    LARGE_INTEGER ticksPerSecond;
+    QueryPerformanceFrequency (&ticksPerSecond);
+
+    //  What time is it?
+    LARGE_INTEGER tick;
+    QueryPerformanceCounter (&tick);
+
+    //  Convert the tick number into the number of seconds
+    //  since the system was started.
+    double ticks_div = (double) (ticksPerSecond.QuadPart / 1000000);     
+    return (uint64_t) (tick.QuadPart / ticks_div);
+}
+
+void perf_sleep (int seconds_)
+{
+    Sleep (seconds_ * 1000);
+}
+
+#else /* not _WIN32 */
+
+static uint64_t now ()
+{
+    struct timeval tv;
+    int rc;
+
+    rc = gettimeofday (&tv, NULL);
+    assert (rc == 0);
+    return (tv.tv_sec * (uint64_t) 1000000 + tv.tv_usec);
+}
+
+void perf_sleep (int seconds_)
+{
+    sleep (seconds_);
+}
+
+#endif /* _WIN32 */
+
+void *stopwatch_start ()
+{
+    uint64_t *watch = (uint64_t*) malloc (sizeof (uint64_t));
+    assert (watch);
+    *watch = now ();
+    return (void*) watch;
+}
+
+unsigned long stopwatch_stop (void *watch_)
+{
+    uint64_t end = now ();
+    uint64_t start = *(uint64_t*) watch_;
+    free (watch_);
+    return (unsigned long) (end - start);
+}
-- 
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