ddsf: implement namespace

libraries/libstratosphere/source/os/os_sdk_condition_variable.cpp

@@ -0,0 +1,48 @@
+/*
+ * 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 "impl/os_thread_manager.hpp"
+#include "impl/os_timeout_helper.hpp"
+
+namespace ams::os {
+
+    void SdkConditionVariableType::Wait(SdkMutexType &mutex) {
+        /* Check that we own the mutex. */
+        AMS_ABORT_UNLESS(os::IsSdkMutexLockedByCurrentThread(std::addressof(mutex)));
+
+        /* Wait on the mutex. */
+        GetReference(this->_storage).Wait(GetPointer(mutex._storage));
+    }
+
+    bool SdkConditionVariableType::TimedWait(SdkMutexType &mutex, TimeSpan timeout) {
+        /* Check preconditions. */
+        AMS_ASSERT(timeout.GetNanoSeconds() >= 0);
+        AMS_ABORT_UNLESS(os::IsSdkMutexLockedByCurrentThread(std::addressof(mutex)));
+
+        /* Handle zero timeout by unlocking and re-locking. */
+        if (timeout == TimeSpan(0)) {
+            GetReference(mutex._storage).Leave();
+            GetReference(mutex._storage).Enter();
+            return false;
+        }
+
+        /* Handle timed wait. */
+        impl::TimeoutHelper timeout_helper(timeout);
+        auto status = GetReference(this->_storage).TimedWait(GetPointer(mutex._storage), timeout_helper);
+        return status == ConditionVariableStatus::Success;
+    }
+
+}