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[idd] common: use CSRWLock throughout the drivers

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Make CSRWLock own the native lock and provide scoped guards for shared,
exclusive, early-unlock, and non-blocking use.

Replace direct SRW lock management throughout the IDD, input driver,
and helper while preserving the existing lock scopes.
This commit is contained in:
Geoffrey McRae
2026-08-11 22:06:31 +10:00
parent 2543366f5f
commit 61a49ebaba
37 changed files with 576 additions and 525 deletions
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24
idd/LGIdd/ipc/CInputPipeServer.cpp
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@@ -95,7 +95,7 @@ void CInputPipeServer::DeInit()
m_stopEvent = nullptr;
}
CSRWExclusiveLock lock(&m_queueLock);
CSRWExclusiveLock lock(m_queueLock);
m_queueHead = 0;
m_queueCount = 0;
m_mouseMode = MouseMode::NONE;
@@ -269,7 +269,7 @@ bool CInputPipeServer::SendMouseRelative(
payload.mouseRelative.deltaY = deltaY;
payload.mouseRelative.wheel = wheel;
CSRWExclusiveLock lock(&m_queueLock);
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;
@@ -316,7 +316,7 @@ bool CInputPipeServer::SendMouseAbsolute(
payload.mouseAbsolute.y = y;
payload.mouseAbsolute.wheel = wheel;
CSRWExclusiveLock lock(&m_queueLock);
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;
@@ -360,7 +360,7 @@ bool CInputPipeServer::SendKeyboard(
payload.keyboard.keys[i] = keys[i];
}
CSRWExclusiveLock lock(&m_queueLock);
CSRWExclusiveLock lock(m_queueLock);
const bool queued = (m_state.load(std::memory_order_relaxed) & 1) &&
QueueLocked(LG_INPUT_PIPE_MESSAGE_KEYBOARD, payload, false);
if (!queued)
@@ -373,7 +373,7 @@ bool CInputPipeServer::Reset()
if (!(m_state.load(std::memory_order_acquire) & 1))
return false;
CSRWExclusiveLock lock(&m_queueLock);
CSRWExclusiveLock lock(m_queueLock);
bool queued = (m_state.load(std::memory_order_relaxed) & 1) != 0;
if (queued)
queued = QueueResetLocked();
@@ -384,7 +384,7 @@ bool CInputPipeServer::Reset()
bool CInputPipeServer::Pop(QueueItem& item)
{
CSRWExclusiveLock lock(&m_queueLock);
CSRWExclusiveLock lock(m_queueLock);
if (!m_queueCount)
return false;
@@ -411,7 +411,7 @@ bool CInputPipeServer::Send(const QueueItem& item)
LARGE_INTEGER start = {};
LARGE_INTEGER end = {};
{
CSRWSharedLock lock(&m_connectionLock);
CSRWSharedLock lock(m_connectionLock);
const uint64_t state = m_state.load(std::memory_order_acquire);
current = (state & 1) && item.state == state;
if (current)
@@ -465,7 +465,7 @@ void CInputPipeServer::LogStatistics()
uint64_t resyncDiscarded;
size_t queueHighWater;
{
CSRWExclusiveLock lock(&m_queueLock);
CSRWExclusiveLock lock(m_queueLock);
enqueued = m_statEnqueued;
relativeCoalesced = m_statRelativeCoalesced;
absoluteCoalesced = m_statAbsoluteCoalesced;
@@ -526,7 +526,7 @@ void CInputPipeServer::LogStatistics()
void CInputPipeServer::Invalidate(uint64_t state, bool requireMatch)
{
CSRWExclusiveLock connectionLock(&m_connectionLock);
CSRWExclusiveLock connectionLock(m_connectionLock);
uint64_t current = m_state.load(std::memory_order_relaxed);
for (;;)
{
@@ -537,7 +537,7 @@ void CInputPipeServer::Invalidate(uint64_t state, bool requireMatch)
break;
}
CSRWExclusiveLock queueLock(&m_queueLock);
CSRWExclusiveLock queueLock(m_queueLock);
m_queueHead = 0;
m_queueCount = 0;
}
@@ -578,8 +578,8 @@ void CInputPipeServer::Thread()
void CInputPipeServer::OnPipeConnected()
{
CSRWExclusiveLock connectionLock(&m_connectionLock);
CSRWExclusiveLock queueLock(&m_queueLock);
CSRWExclusiveLock connectionLock(m_connectionLock);
CSRWExclusiveLock queueLock(m_queueLock);
uint64_t state = m_state.load(std::memory_order_relaxed);
if (state & 1)