init

Telegram/lib_crl/crl/winapi/crl_winapi_time.cpp

@@ -0,0 +1,50 @@
+// This file is part of Desktop App Toolkit,
+// a set of libraries for developing nice desktop applications.
+//
+// For license and copyright information please follow this link:
+// https://github.com/desktop-app/legal/blob/master/LEGAL
+//
+#include <crl/crl_time.h>
+
+#ifdef CRL_USE_WINAPI_TIME
+
+#include <crl/winapi/crl_winapi_windows_h.h>
+
+namespace crl::details {
+namespace {
+
+double Frequency/* = 0.*/;
+double ProfileFrequency/* = 0.*/;
+
+} // namespace
+
+void init() {
+	LARGE_INTEGER value;
+	QueryPerformanceFrequency(&value);
+	Frequency = 1000. / double(value.QuadPart);
+	ProfileFrequency = 1000000. / double(value.QuadPart);
+}
+
+inner_time_type current_value() {
+	LARGE_INTEGER value;
+	QueryPerformanceCounter(&value);
+	return value.QuadPart;
+}
+
+time convert(inner_time_type value) {
+	return time(value * Frequency);
+}
+
+inner_profile_type current_profile_value() {
+	LARGE_INTEGER value;
+	QueryPerformanceCounter(&value);
+	return value.QuadPart;
+}
+
+profile_time convert_profile(inner_profile_type value) {
+	return profile_time(value * ProfileFrequency);
+}
+
+} // namespace crl::details
+
+#endif // CRL_USE_WINAPI_TIME