Atmosphere-libs/libstratosphere/source/os/impl/os_multiple_wait_holder_base.hpp

82 lines
2.9 KiB
C++

/*
* Copyright (c) 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/>.
*/
#pragma once
#include <stratosphere.hpp>
namespace ams::os::impl {
class MultiWaitObjectList;
class MultiWaitImpl;
class MultiWaitHolderBase {
private:
MultiWaitImpl *m_multi_wait = nullptr;
public:
util::IntrusiveListNode m_multi_wait_node;
util::IntrusiveListNode m_object_list_node;
public:
/* Gets whether the held object is currently signaled. */
virtual TriBool IsSignaled() const = 0;
/* Adds to multi wait's object list, returns is signaled. */
virtual TriBool AddToObjectList() = 0;
/* Removes from the multi wait's object list. */
virtual void RemoveFromObjectList() = 0;
/* Gets whether waitable has a native handle, writes to output if it does. */
virtual bool GetNativeHandle(os::NativeHandle *) const = 0;
/* Gets the amount of time remaining until this wakes up. */
virtual TimeSpan GetAbsoluteTimeToWakeup() const {
return TimeSpan::FromNanoSeconds(std::numeric_limits<s64>::max());
}
/* Interface with multi wait. */
ALWAYS_INLINE void SetMultiWait(MultiWaitImpl *m) {
m_multi_wait = m;
}
ALWAYS_INLINE MultiWaitImpl *GetMultiWait() const {
return m_multi_wait;
}
ALWAYS_INLINE bool IsLinked() const { return m_multi_wait != nullptr; }
ALWAYS_INLINE bool IsNotLinked() const { return m_multi_wait == nullptr; }
};
class MultiWaitHolderOfUserWaitObject : public MultiWaitHolderBase {
public:
/* All user objects have no handle to wait on. */
virtual bool GetNativeHandle(os::NativeHandle *) const override final {
return false;
}
};
class MultiWaitHolderOfNativeWaitObject : public MultiWaitHolderBase {
public:
/* All native objects have native handles, and thus don't have object list semantics. */
virtual TriBool AddToObjectList() override final {
return TriBool::Undefined;
}
virtual void RemoveFromObjectList() override final {
/* ... */
}
};
}