Atmosphere-libs/libstratosphere/source/os/impl/os_internal_condition_variable_impl.os.windows.cpp

60 lines
2.3 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/>.
*/
#include <stratosphere.hpp>
#include <stratosphere/windows.hpp>
#include "os_internal_critical_section_impl.os.windows.hpp"
#include "os_timeout_helper.hpp"
#include "os_thread_manager.hpp"
namespace ams::os::impl {
struct WindowsConditionVariable {
CONDITION_VARIABLE cv;
};
void InternalConditionVariableImpl::Initialize() {
::InitializeConditionVariable(std::addressof(util::GetReference(m_windows_cv_storage).cv));
}
void InternalConditionVariableImpl::Finalize() {
/* ... */
}
void InternalConditionVariableImpl::Signal() {
::WakeConditionVariable(std::addressof(util::GetReference(m_windows_cv_storage).cv));
}
void InternalConditionVariableImpl::Broadcast() {
::WakeAllConditionVariable(std::addressof(util::GetReference(m_windows_cv_storage).cv));
}
void InternalConditionVariableImpl::Wait(InternalCriticalSection *cs) {
::SleepConditionVariableCS(std::addressof(util::GetReference(m_windows_cv_storage).cv), std::addressof(util::GetReference(cs->Get()->m_windows_critical_section_storage).cs), INFINITE);
}
ConditionVariableStatus InternalConditionVariableImpl::TimedWait(InternalCriticalSection *cs, const TimeoutHelper &timeout_helper) {
const auto ret = ::SleepConditionVariableCS(std::addressof(util::GetReference(m_windows_cv_storage).cv), std::addressof(util::GetReference(cs->Get()->m_windows_critical_section_storage).cs), timeout_helper.GetTimeLeftOnTarget());
if (ret == 0) {
if (::GetLastError() == ERROR_TIMEOUT) {
return ConditionVariableStatus::TimedOut;
}
}
return ConditionVariableStatus::Success;
}
}