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[idd] transport: arbitrate interaction requests

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This commit is contained in:
Geoffrey McRae
2026-08-13 00:20:38 +10:00
parent 5b09d4f90a
commit fbc4640623
10 changed files with 270 additions and 38 deletions
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50
idd/LGIdd/transport/CTransportManager.cpp
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@@ -34,6 +34,8 @@ class CSourceEvents final : public ITransportEvents
private:
BackendId m_backend;
uint32_t m_epoch;
bool m_interactions;
CInputHub& m_input;
ITransportEvents& m_events;
SourceKey Stamp(const SourceKey& source) const
@@ -46,19 +48,45 @@ private:
public:
CSourceEvents(
BackendId backend, uint32_t epoch, ITransportEvents& events) :
m_backend(backend), m_epoch(epoch), m_events(events) {}
BackendId backend, uint32_t epoch, bool interactions, CInputHub& input,
ITransportEvents& events) :
m_backend(backend), m_epoch(epoch), m_interactions(interactions),
m_input(input), m_events(events) {}
void OnSetCursorPos(
InteractionResult OnSetCursorPos(
const SourceKey& source, int32_t x, int32_t y) override
{
m_events.OnSetCursorPos(Stamp(source), x, y);
if (!m_interactions)
return InteractionResult::UNAVAILABLE;
SourceKey stamped = Stamp(source);
CInputHub::InteractionPermit permit;
const InteractionResult result =
m_input.CheckInteraction(stamped, permit);
if (result != InteractionResult::ACCEPTED)
return result;
const InteractionResult applied =
m_events.OnSetCursorPos(stamped, x, y);
if (applied == InteractionResult::ACCEPTED)
m_input.CommitInteraction(stamped, permit);
return applied;
}
void OnSetResolution(const SourceKey& source,
InteractionResult OnSetResolution(const SourceKey& source,
uint32_t width, uint32_t height) override
{
m_events.OnSetResolution(Stamp(source), width, height);
if (!m_interactions)
return InteractionResult::UNAVAILABLE;
SourceKey stamped = Stamp(source);
CInputHub::InteractionPermit permit;
const InteractionResult result =
m_input.CheckInteraction(stamped, permit);
if (result != InteractionResult::ACCEPTED)
return result;
const InteractionResult applied =
m_events.OnSetResolution(stamped, width, height);
if (applied == InteractionResult::ACCEPTED)
m_input.CommitInteraction(stamped, permit);
return applied;
}
void OnRecoveryRequest(const SourceKey& source,
@@ -518,6 +546,7 @@ void CTransportManager::HandleServiceFailures()
}
m_control.Remove(token.backend, token.epoch);
m_input.RevokeInteraction(token.backend, token.epoch);
if (restart)
{
RemoveServices(entry);
@@ -622,6 +651,7 @@ void CTransportManager::RemoveServices(Entry& entry)
entry.inputAdded = false;
}
m_input.RevokeInteraction(id, epoch);
if (inputAdded)
m_input.Unbind(id, epoch);
if (controlAdded)
@@ -988,8 +1018,14 @@ ITransport::ProcessResult CTransportManager::Process(
if (setup)
SetupEntry(entry, alignment);
bool interactions = false;
{
CSRWSharedLock entryLock(entry.lock);
interactions = entry.controlAdded;
}
DrainRecovery(entry, transport);
CSourceEvents sourceEvents(id, epoch, events);
CSourceEvents sourceEvents(
id, epoch, interactions, m_input, events);
const ProcessResult result = transport->Process(sourceEvents);
DrainRecovery(entry, transport);
HandleProcessResult(entry, result);