initial windows support for ping/pong implementation, to be tested and validated

3 files changed, 59 insertions, 0 deletions

diff --git a/src/ivy.c b/src/ivy.c
index a855094..87717ee 100644
--- a/src/ivy.c
+++ b/src/ivy.c
@@ -27,6 +27,7 @@
 #ifdef WIN32
 #include <Ws2tcpip.h>
 #include <windows.h>
+#include "timer.h"
 #define snprintf _snprintf
 #ifdef __MINGW32__
 // should be removed in when defined in MinGW include of ws2tcpip.h
diff --git a/src/timer.c b/src/timer.c
index 7f9394a..4864321 100644
--- a/src/timer.c
+++ b/src/timer.c
@@ -187,3 +187,49 @@ void TimerScan()
 	}
 	
 }
+
+#ifdef WIN32
+
+#if defined(_MSC_VER) || defined(_MSC_EXTENSIONS)
+  #define DELTA_EPOCH_IN_MICROSECS  11644473600000000Ui64
+#else
+  #define DELTA_EPOCH_IN_MICROSECS  11644473600000000ULL
+#endif
+
+
+int gettimeofday(struct timeval *tv, struct timezone *tz)
+{
+  FILETIME ft;
+  unsigned __int64 tmpres = 0;
+  static int tzflag = 0;
+
+  if (NULL != tv)
+  {
+    GetSystemTimeAsFileTime(&ft);
+
+    tmpres |= ft.dwHighDateTime;
+    tmpres <<= 32;
+    tmpres |= ft.dwLowDateTime;
+
+    tmpres /= 10;  /*convert into microseconds*/
+    /*converting file time to unix epoch*/
+    tmpres -= DELTA_EPOCH_IN_MICROSECS; 
+    tv->tv_sec = (long)(tmpres / 1000000UL);
+    tv->tv_usec = (long)(tmpres % 1000000UL);
+  }
+
+  if (NULL != tz)
+  {
+    if (!tzflag)
+    {
+      _tzset();
+      tzflag++;
+    }
+    tz->tz_minuteswest = _timezone / 60;
+    tz->tz_dsttime = _daylight;
+  }
+
+  return 0;
+}
+
+#endif
diff --git a/src/timer.h b/src/timer.h
index 6e31dd7..accad5b 100644
--- a/src/timer.h
+++ b/src/timer.h
@@ -34,6 +34,18 @@ void TimerModify( TimerId id, long timeout );
 
 void TimerRemove( TimerId id );
 
+
+ //  implemetation of gettimeofday for windows
+#ifdef WIN32
+#include "time.h"
+struct timezone 
+{
+  int  tz_minuteswest; /* minutes W of Greenwich */
+  int  tz_dsttime;     /* type of dst correction */
+};
+int gettimeofday(struct timeval *tv, struct timezone *tz);
+#endif
+
 /* Interface avec select */
 
 struct timeval *TimerGetSmallestTimeout();