os: implement waitable management.

This implements waitable management for Events (and implements Events). It also refactors PM to use new Event/Waitable semantics, and also adds STS_ASSERT as a macro for asserting a boolean expression. The rest of stratosphere has been refactored to use STS_ASSERT whenever possible.
2025-05-31 14:58:22 -04:00 · 2019-09-27 18:04:58 -07:00 · 2019-09-27 18:04:58 -07:00 · 609a302e16
commit 609a302e16
parent e07011be32
108 changed files with 2752 additions and 1223 deletions
--- a/stratosphere/libstratosphere/source/os/os_waitable_manager.cpp
+++ b/stratosphere/libstratosphere/source/os/os_waitable_manager.cpp
@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2018-2019 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_waitable_holder_impl.hpp"
+#include "impl/os_waitable_manager_impl.hpp"
+
+namespace sts::os {
+
+    WaitableManager::WaitableManager() {
+        /* Initialize storage. */
+        new (GetPointer(this->impl_storage)) impl::WaitableManagerImpl();
+    }
+
+    WaitableManager::~WaitableManager() {
+        auto &impl = GetReference(this->impl_storage);
+
+        /* Don't allow destruction of a non-empty waitable holder. */
+        STS_ASSERT(impl.IsEmpty());
+
+        impl.~WaitableManagerImpl();
+    }
+
+
+    /* Wait. */
+    WaitableHolder *WaitableManager::WaitAny() {
+        auto &impl = GetReference(this->impl_storage);
+
+        /* Don't allow waiting on empty list. */
+        STS_ASSERT(!impl.IsEmpty());
+
+        return reinterpret_cast<WaitableHolder *>(impl.WaitAny());
+    }
+
+    WaitableHolder *WaitableManager::TryWaitAny() {
+        auto &impl = GetReference(this->impl_storage);
+
+        /* Don't allow waiting on empty list. */
+        STS_ASSERT(!impl.IsEmpty());
+
+        return reinterpret_cast<WaitableHolder *>(impl.TryWaitAny());
+    }
+
+    WaitableHolder *WaitableManager::TimedWaitAny(u64 timeout) {
+        auto &impl = GetReference(this->impl_storage);
+
+        /* Don't allow waiting on empty list. */
+        STS_ASSERT(!impl.IsEmpty());
+
+        return reinterpret_cast<WaitableHolder *>(impl.TimedWaitAny(timeout));
+    }
+
+    /* Link. */
+    void WaitableManager::LinkWaitableHolder(WaitableHolder *holder) {
+        auto &impl = GetReference(this->impl_storage);
+        auto holder_base = reinterpret_cast<impl::WaitableHolderBase *>(GetPointer(holder->impl_storage));
+
+        /* Don't allow double-linking a holder. */
+        STS_ASSERT(!holder_base->IsLinkedToManager());
+
+        impl.LinkWaitableHolder(*holder_base);
+        holder_base->SetManager(&impl);
+    }
+
+    void WaitableManager::UnlinkAll() {
+        auto &impl = GetReference(this->impl_storage);
+        impl.UnlinkAll();
+    }
+
+    void WaitableManager::MoveAllFrom(WaitableManager *other) {
+        auto &dst_impl = GetReference(this->impl_storage);
+        auto &src_impl = GetReference(other->impl_storage);
+
+        dst_impl.MoveAllFrom(src_impl);
+    }
+
+}