os: refactor/rewrite entire namespace.

libraries/libstratosphere/source/os/impl/os_timeout_helper.cpp

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2018-2020 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
+ */
+#include <stratosphere.hpp>
+#include "os_timeout_helper.hpp"
+
+namespace ams::os::impl {
+
+    TargetTimeSpan TimeoutHelper::GetTimeLeftOnTarget() const {
+        /* If the absolute tick is zero, we're expired. */
+        if (this->absolute_end_tick.GetInt64Value() == 0) {
+            return 0;
+        }
+
+        /* Check if we've expired. */
+        const Tick cur_tick = impl::GetTickManager().GetTick();
+        if (cur_tick >= this->absolute_end_tick) {
+            return 0;
+        }
+
+        /* Return the converted difference as a timespan. */
+        return TimeoutHelperImpl::ConvertToImplTime(this->absolute_end_tick - cur_tick);
+    }
+
+}