From f83677056891e436bf5ba99e79240df2a44528cd Mon Sep 17 00:00:00 2001
From: "Stephen D. Huston" <shuston@apache.org>
Date: Fri, 21 Oct 2011 14:42:12 +0000
Subject: Merged out from trunk

git-svn-id: https://svn.apache.org/repos/asf/qpid/branches/QPID-2519@1187375 13f79535-47bb-0310-9956-ffa450edef68
---
 cpp/src/qpid/sys/windows/Time.cpp | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

(limited to 'cpp/src/qpid/sys/windows/Time.cpp')

diff --git a/cpp/src/qpid/sys/windows/Time.cpp b/cpp/src/qpid/sys/windows/Time.cpp
index 16d09fcdc0..25c50819cd 100644
--- a/cpp/src/qpid/sys/windows/Time.cpp
+++ b/cpp/src/qpid/sys/windows/Time.cpp
@@ -27,6 +27,17 @@
 
 using namespace boost::posix_time;
 
+namespace {
+
+// High-res timing support. This will display times since program start,
+// more or less. Keep track of the start value and the conversion factor to
+// seconds.
+bool timeInitialized = false;
+LARGE_INTEGER start;
+double freq = 1.0;
+
+}
+
 namespace qpid {
 namespace sys {
 
@@ -91,10 +102,35 @@ void outputFormattedNow(std::ostream& o) {
     char time_string[100];
 
     ::time( &rawtime );
+#ifdef _MSC_VER
     ::localtime_s(&timeinfo, &rawtime);
+#else
+    timeinfo = *(::localtime(&rawtime));
+#endif
     ::strftime(time_string, 100,
                "%Y-%m-%d %H:%M:%S",
                &timeinfo);
     o << time_string << " ";
 }
+
+void outputHiresNow(std::ostream& o) {
+    if (!timeInitialized) {
+        start.QuadPart = 0;
+        LARGE_INTEGER iFreq;
+        iFreq.QuadPart = 1;
+        QueryPerformanceCounter(&start);
+        QueryPerformanceFrequency(&iFreq);
+        freq = static_cast<double>(iFreq.QuadPart);
+        timeInitialized = true;
+    }
+    LARGE_INTEGER iNow;
+    iNow.QuadPart = 0;
+    QueryPerformanceCounter(&iNow);
+    iNow.QuadPart -= start.QuadPart;
+    if (iNow.QuadPart < 0)
+        iNow.QuadPart = 0;
+    double now = static_cast<double>(iNow.QuadPart);
+    now /= freq;                 // now is seconds after this
+    o << std::fixed << std::setprecision(8) << std::setw(16) << std::setfill('0') << now << "s ";
+}
 }}
-- 
cgit v1.2.1