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[idd] clipboard: add direct synchronization

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This commit is contained in:
Geoffrey McRae
2026-08-14 06:26:35 +10:00
parent a8d531b797
commit b786167f72
35 changed files with 5956 additions and 79 deletions
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14
idd/LGCommon/CClipboardRing.cpp
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@@ -82,17 +82,21 @@ bool CClipboardRing::EndWrite(ClipboardRing& ring, uint32_t ticket)
return true;
}
const ClipboardRingSlot * CClipboardRing::BeginRead(
ClipboardRing& ring, uint32_t& ticket)
ClipboardRingReadResult CClipboardRing::BeginRead(ClipboardRing& ring,
uint32_t& ticket, const ClipboardRingSlot *& slot)
{
slot = nullptr;
const uint32_t consumed = Atomic::Load(ring.consumed);
const uint32_t pending = Atomic::Load(ring.produced) - consumed;
if (!pending || pending > KVMFR_CLIPBOARD_SLOT_COUNT)
return nullptr;
if (!pending)
return ClipboardRingReadResult::EMPTY;
if (pending > KVMFR_CLIPBOARD_SLOT_COUNT)
return ClipboardRingReadResult::CORRUPT;
Atomic::Fence();
ticket = consumed;
return &ring.slots[consumed % KVMFR_CLIPBOARD_SLOT_COUNT];
slot = &ring.slots[consumed % KVMFR_CLIPBOARD_SLOT_COUNT];
return ClipboardRingReadResult::READY;
}
bool CClipboardRing::EndRead(ClipboardRing& ring, uint32_t ticket)