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[idd] common: centralize atomic operations

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This commit is contained in:
Geoffrey McRae
2026-08-13 20:18:18 +10:00
parent 5d12ee4bce
commit af309de438
27 changed files with 477 additions and 271 deletions
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43
idd/LGIdd/ipc/CInputPipeServer.cpp
View File

@@ -34,7 +34,7 @@ bool CInputPipeServer::Init()
{
DeInit();
m_state.store(0, std::memory_order_release);
Atomic::Store(m_state, 0, std::memory_order_release);
m_performanceFrequency.QuadPart = 0;
if (!QueryPerformanceFrequency(&m_performanceFrequency))
m_performanceFrequency.QuadPart = 0;
@@ -183,7 +183,7 @@ bool CInputPipeServer::QueueRawLocked(
(m_queueHead + m_queueCount) % QUEUE_LENGTH;
m_queue[index].type = type;
m_queue[index].state =
m_state.load(std::memory_order_relaxed);
Atomic::Load(m_state, std::memory_order_relaxed);
m_queue[index].payload = payload;
m_queue[index].pureMotion = pureMotion;
++m_queueCount;
@@ -236,11 +236,11 @@ void CInputPipeServer::ResyncLocked()
m_statResyncDiscarded += m_queueCount;
m_queueHead = 0;
m_queueCount = 0;
uint64_t state = m_state.load(std::memory_order_relaxed);
uint64_t state = Atomic::Load(m_state, std::memory_order_relaxed);
while (state & 1)
{
if (m_state.compare_exchange_weak(
state, state + 2, std::memory_order_acq_rel))
if (Atomic::CASWeak(
m_state, state, state + 2, std::memory_order_acq_rel))
{
QueueResetLocked();
return;
@@ -260,7 +260,7 @@ bool CInputPipeServer::SendMouseRelative(
deltaY > LG_INPUT_MOUSE_DELTA_MAX ||
wheel < LG_INPUT_MOUSE_WHEEL_MIN_TOTAL ||
wheel > LG_INPUT_MOUSE_WHEEL_MAX ||
!(m_state.load(std::memory_order_acquire) & 1))
!(Atomic::Load(m_state, std::memory_order_acquire) & 1))
return false;
KVMFRInputPayload payload = {};
@@ -272,7 +272,8 @@ bool CInputPipeServer::SendMouseRelative(
CSRWExclusiveLock lock(m_queueLock);
const bool pureMotion = wheel == 0 && buttons == m_relativeButtons;
const bool switching = m_mouseMode == MouseMode::ABSOLUTE_INPUT;
bool queued = (m_state.load(std::memory_order_relaxed) & 1) != 0;
bool queued =
(Atomic::Load(m_state, std::memory_order_relaxed) & 1) != 0;
if (queued && switching && m_absoluteButtons)
{
KVMFRInputPayload neutral = {};
@@ -307,7 +308,7 @@ bool CInputPipeServer::SendMouseAbsolute(
y > LG_INPUT_MOUSE_ABSOLUTE_MAX ||
wheel < LG_INPUT_MOUSE_WHEEL_MIN_TOTAL ||
wheel > LG_INPUT_MOUSE_WHEEL_MAX ||
!(m_state.load(std::memory_order_acquire) & 1))
!(Atomic::Load(m_state, std::memory_order_acquire) & 1))
return false;
KVMFRInputPayload payload = {};
@@ -319,7 +320,8 @@ bool CInputPipeServer::SendMouseAbsolute(
CSRWExclusiveLock lock(m_queueLock);
const bool pureMotion = wheel == 0 && buttons == m_absoluteButtons;
const bool switching = m_mouseMode == MouseMode::RELATIVE_INPUT;
bool queued = (m_state.load(std::memory_order_relaxed) & 1) != 0;
bool queued =
(Atomic::Load(m_state, std::memory_order_relaxed) & 1) != 0;
if (queued && switching && m_relativeButtons)
{
const KVMFRInputPayload neutral = {};
@@ -348,7 +350,7 @@ bool CInputPipeServer::SendKeyboard(
uint8_t modifiers,
const uint8_t * keys)
{
if (!keys || !(m_state.load(std::memory_order_acquire) & 1))
if (!keys || !(Atomic::Load(m_state, std::memory_order_acquire) & 1))
return false;
KVMFRInputPayload payload = {};
@@ -361,7 +363,8 @@ bool CInputPipeServer::SendKeyboard(
}
CSRWExclusiveLock lock(m_queueLock);
const bool queued = (m_state.load(std::memory_order_relaxed) & 1) &&
const bool queued =
(Atomic::Load(m_state, std::memory_order_relaxed) & 1) &&
QueueLocked(LG_INPUT_PIPE_MESSAGE_KEYBOARD, payload, false);
if (!queued)
ResyncLocked();
@@ -370,11 +373,12 @@ bool CInputPipeServer::SendKeyboard(
bool CInputPipeServer::Reset()
{
if (!(m_state.load(std::memory_order_acquire) & 1))
if (!(Atomic::Load(m_state, std::memory_order_acquire) & 1))
return false;
CSRWExclusiveLock lock(m_queueLock);
bool queued = (m_state.load(std::memory_order_relaxed) & 1) != 0;
bool queued =
(Atomic::Load(m_state, std::memory_order_relaxed) & 1) != 0;
if (queued)
queued = QueueResetLocked();
if (!queued)
@@ -412,7 +416,8 @@ bool CInputPipeServer::Send(const QueueItem& item)
LARGE_INTEGER end = {};
{
CSRWSharedLock lock(m_connectionLock);
const uint64_t state = m_state.load(std::memory_order_acquire);
const uint64_t state =
Atomic::Load(m_state, std::memory_order_acquire);
current = (state & 1) && item.state == state;
if (current)
{
@@ -527,13 +532,13 @@ void CInputPipeServer::LogStatistics()
void CInputPipeServer::Invalidate(uint64_t state, bool requireMatch)
{
CSRWExclusiveLock connectionLock(m_connectionLock);
uint64_t current = m_state.load(std::memory_order_relaxed);
uint64_t current = Atomic::Load(m_state, std::memory_order_relaxed);
for (;;)
{
if (!(current & 1) || (requireMatch && state != current))
return;
if (m_state.compare_exchange_weak(
current, current + 1, std::memory_order_acq_rel))
if (Atomic::CASWeak(
m_state, current, current + 1, std::memory_order_acq_rel))
break;
}
@@ -581,7 +586,7 @@ void CInputPipeServer::OnPipeConnected()
CSRWExclusiveLock connectionLock(m_connectionLock);
CSRWExclusiveLock queueLock(m_queueLock);
uint64_t state = m_state.load(std::memory_order_relaxed);
uint64_t state = Atomic::Load(m_state, std::memory_order_relaxed);
if (state & 1)
++state;
++state;
@@ -597,7 +602,7 @@ void CInputPipeServer::OnPipeConnected()
m_queue[index].state = state;
}
if (reset)
m_state.store(state, std::memory_order_release);
Atomic::Store(m_state, state, std::memory_order_release);
if (!reset)
DEBUG_WARN("Failed to queue LGInput endpoint neutralization");

4
idd/LGIdd/ipc/CInputPipeServer.h
View File

@@ -20,12 +20,12 @@
#pragma once
#include "Atomic.h"
#include "CPipeEndpoint.h"
#include "CSRWLock.h"
#include "InputPipeProtocol.h"
#include "input/IInputSink.h"
#include <atomic>
#include <stddef.h>
#include <stdint.h>
@@ -115,7 +115,7 @@ public:
uint64_t GetState() const override
{
return m_state.load(std::memory_order_acquire);
return Atomic::Load(m_state, std::memory_order_acquire);
}
bool SendMouseRelative(