os: refactor/rewrite entire namespace.

2020-04-08 02:21:35 -07:00
parent 6193283f03
commit 065485b971
181 changed files with 5353 additions and 1929 deletions
--- a/libraries/libstratosphere/source/os/os_condition_variable.cpp
+++ b/libraries/libstratosphere/source/os/os_condition_variable.cpp
@@ -0,0 +1,107 @@
+/*
+ * 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"
+#include "impl/os_mutex_impl.hpp"
+
+namespace ams::os {
+
+    void InitializeConditionVariable(ConditionVariableType *cv) {
+        /* Construct object. */
+        new (GetPointer(cv->_storage)) impl::InternalConditionVariable;
+
+        /* Mark initialized. */
+        cv->state = ConditionVariableType::State_Initialized;
+    }
+
+    void FinalizeConditionVariable(ConditionVariableType *cv) {
+        AMS_ASSERT(cv->state == ConditionVariableType::State_Initialized);
+
+        /* Mark not initialized. */
+        cv->state = ConditionVariableType::State_NotInitialized;
+
+        /* Destroy objects. */
+        GetReference(cv->_storage).~InternalConditionVariable();
+    }
+
+    void SignalConditionVariable(ConditionVariableType *cv) {
+        AMS_ASSERT(cv->state == ConditionVariableType::State_Initialized);
+
+        GetReference(cv->_storage).Signal();
+    }
+
+    void BroadcastConditionVariable(ConditionVariableType *cv) {
+        AMS_ASSERT(cv->state == ConditionVariableType::State_Initialized);
+
+        GetReference(cv->_storage).Broadcast();
+    }
+
+    void WaitConditionVariable(ConditionVariableType *cv, MutexType *m) {
+        AMS_ASSERT(cv->state == ConditionVariableType::State_Initialized);
+
+        AMS_ASSERT(m->state        == MutexType::State_Initialized);
+        AMS_ASSERT(m->owner_thread == impl::GetCurrentThread());
+        AMS_ASSERT(m->nest_count   == 1);
+
+        impl::PopAndCheckLockLevel(m);
+
+        if ((--m->nest_count) == 0) {
+            m->owner_thread = nullptr;
+        }
+
+        GetReference(cv->_storage).Wait(GetPointer(m->_storage));
+
+        impl::PushAndCheckLockLevel(m);
+
+        ++m->nest_count;
+        m->owner_thread = impl::GetCurrentThread();
+    }
+
+    ConditionVariableStatus TimedWaitConditionVariable(ConditionVariableType *cv, MutexType *m, TimeSpan timeout) {
+        AMS_ASSERT(cv->state == ConditionVariableType::State_Initialized);
+
+        AMS_ASSERT(m->state        == MutexType::State_Initialized);
+        AMS_ASSERT(m->owner_thread == impl::GetCurrentThread());
+        AMS_ASSERT(m->nest_count   == 1);
+
+        AMS_ASSERT(timeout.GetNanoSeconds() >= 0);
+
+        impl::PopAndCheckLockLevel(m);
+
+        if ((--m->nest_count) == 0) {
+            m->owner_thread = nullptr;
+        }
+
+        ConditionVariableStatus status;
+        if (timeout == TimeSpan(0)) {
+            GetReference(m->_storage).Leave();
+            GetReference(m->_storage).Enter();
+            status = ConditionVariableStatus::TimedOut;
+        } else {
+            impl::TimeoutHelper timeout_helper(timeout);
+            status = GetReference(cv->_storage).TimedWait(GetPointer(m->_storage), timeout_helper);
+        }
+
+        impl::PushAndCheckLockLevel(m);
+
+        ++m->nest_count;
+        m->owner_thread = impl::GetCurrentThread();
+
+        return status;
+    }
+
+}