Initial, quick and dirty WinCE port with EVC4

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@125 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjlib/src/pj/os_time_win32.c b/pjlib/src/pj/os_time_win32.c
new file mode 100644
index 0000000..f979931
--- /dev/null
+++ b/pjlib/src/pj/os_time_win32.c
@@ -0,0 +1,137 @@
+/* $Id$ */
+/* 
+ * Copyright (C)2003-2006 Benny Prijono <benny@prijono.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+ */
+#include <pj/os.h>
+#include <pj/string.h>
+#include <windows.h>
+
+///////////////////////////////////////////////////////////////////////////////
+
+#define SECS_TO_FT_MULT 10000000
+
+static LARGE_INTEGER base_time;
+
+// Find 1st Jan 1970 as a FILETIME 
+static void get_base_time(void)
+{
+    SYSTEMTIME st;
+    FILETIME ft;
+
+    memset(&st,0,sizeof(st));
+    st.wYear=1970;
+    st.wMonth=1;
+    st.wDay=1;
+    SystemTimeToFileTime(&st, &ft);
+    
+    base_time.LowPart = ft.dwLowDateTime;
+    base_time.HighPart = ft.dwHighDateTime;
+    base_time.QuadPart /= SECS_TO_FT_MULT;
+}
+
+PJ_DEF(pj_status_t) pj_gettimeofday(pj_time_val *tv)
+{
+    SYSTEMTIME st;
+    FILETIME ft;
+    LARGE_INTEGER li;
+
+    if (base_time.QuadPart == 0)
+	get_base_time();
+
+    GetLocalTime(&st);
+    SystemTimeToFileTime(&st, &ft);
+
+    li.LowPart = ft.dwLowDateTime;
+    li.HighPart = ft.dwHighDateTime;
+    li.QuadPart /= SECS_TO_FT_MULT;
+    li.QuadPart -= base_time.QuadPart;
+
+    tv->sec = li.LowPart;
+    tv->msec = st.wMilliseconds;
+
+    return PJ_SUCCESS;
+}
+
+PJ_DEF(pj_status_t) pj_time_decode(const pj_time_val *tv, pj_parsed_time *pt)
+{
+    LARGE_INTEGER li;
+    FILETIME ft;
+    SYSTEMTIME st;
+
+    li.QuadPart = tv->sec;
+    li.QuadPart += base_time.QuadPart;
+    li.QuadPart *= SECS_TO_FT_MULT;
+
+    ft.dwLowDateTime = li.LowPart;
+    ft.dwHighDateTime = li.HighPart;
+    FileTimeToSystemTime(&ft, &st);
+
+    pt->year = st.wYear;
+    pt->mon = st.wMonth-1;
+    pt->day = st.wDay;
+    pt->wday = st.wDayOfWeek;
+
+    pt->hour = st.wHour;
+    pt->min = st.wMinute;
+    pt->sec = st.wSecond;
+    pt->msec = tv->msec;
+
+    return PJ_SUCCESS;
+}
+
+/**
+ * Encode parsed time to time value.
+ */
+PJ_DEF(pj_status_t) pj_time_encode(const pj_parsed_time *pt, pj_time_val *tv)
+{
+    SYSTEMTIME st;
+    FILETIME ft;
+    LARGE_INTEGER li;
+
+    pj_memset(&st, 0, sizeof(st));
+    st.wYear = pt->year;
+    st.wMonth = pt->mon + 1;
+    st.wDay = pt->day;
+    st.wHour = pt->hour;
+    st.wMinute = pt->min;
+    st.wSecond = pt->sec;
+    st.wMilliseconds = pt->msec;
+    
+    SystemTimeToFileTime(&st, &ft);
+
+    li.LowPart = ft.dwLowDateTime;
+    li.HighPart = ft.dwHighDateTime;
+    li.QuadPart /= SECS_TO_FT_MULT;
+    li.QuadPart -= base_time.QuadPart;
+
+    tv->sec = li.LowPart;
+    tv->msec = st.wMilliseconds;
+
+    return PJ_SUCCESS;
+}
+
+/**
+ * Convert local time to GMT.
+ */
+PJ_DEF(pj_status_t) pj_time_local_to_gmt(pj_time_val *tv);
+
+/**
+ * Convert GMT to local time.
+ */
+PJ_DEF(pj_status_t) pj_time_gmt_to_local(pj_time_val *tv);
+
+