Move most platform-specific code into overlay directories

[libs/core.git] / source / time / windows / rawtime.cpp

diff --git a/source/time/windows/rawtime.cpp b/source/time/windows/rawtime.cpp
new file mode 100644 (file)
index 0000000..b6276f0
--- /dev/null
+++ b/source/time/windows/rawtime.cpp
@@ -0,0 +1,36 @@
+#include "rawtime.h"
+#include "rawtime_private.h"
+
+namespace {
+
+/// Returns the unixtime epoch as filetime
+Msp::Time::RawTime get_epoch()
+{
+       SYSTEMTIME st;
+       st.wYear = 1970;
+       st.wMonth = 1;
+       st.wDay = 1;
+       st.wHour = 0;
+       st.wMinute = 0;
+       st.wSecond = 0;
+       st.wMilliseconds = 0;
+
+       FILETIME ft;
+       SystemTimeToFileTime(&st, &ft);
+       return (ft.dwLowDateTime+(static_cast<Msp::Time::RawTime>(ft.dwHighDateTime)<<32))/10;
+}
+
+}
+
+namespace Msp {
+namespace Time {
+
+RawTime filetime_to_rawtime(const FILETIME &ft)
+{
+       static RawTime epoch = get_epoch();
+       
+       return (ft.dwLowDateTime+(static_cast<RawTime>(ft.dwHighDateTime)<<32))/10-epoch;
+}
+
+} // namespace Time
+} // namespace Msp