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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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23
common/include/common/KVMFRClipboard.h
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@@ -31,6 +31,21 @@
#define KVMFR_CLIPBOARD_DATA_BYTES (64U * 1024U)
#define KVMFR_CLIPBOARD_SIZE_UNKNOWN UINT64_MAX
/* Transfer IDs are selected by the side which sends REQUEST. Keeping the
* namespaces disjoint makes a simultaneous transfer in each direction
* unambiguous when CANCEL and DATA cross in flight. */
#define KVMFR_CLIPBOARD_TRANSFER_HELPER (UINT64_C(1) << 63)
static inline int kvmfrClipboardTransferFromHelper(uint64_t transfer)
{
return (transfer & KVMFR_CLIPBOARD_TRANSFER_HELPER) != 0;
}
static inline int kvmfrClipboardTransferFromClient(uint64_t transfer)
{
return transfer != 0 && !kvmfrClipboardTransferFromHelper(transfer);
}
enum
{
KVMFR_CLIPBOARD_FORMAT_NONE = 0,
@@ -120,6 +135,14 @@ typedef struct KVMFRClipboardMessage
}
KVMFRClipboardMessage;
/* Type-specific fields:
* OFFER: token is KVMFRClipboardFormatFlags.
* REQUEST: format and transfer identify the requested representation.
* DATA: size is an optional total hint on BEGIN and authoritative on END;
* offset/length describe this record's borrowed payload.
* CANCEL: token is a KVMFRClipboardCancelReason-compatible reason.
* ACK/GRANT: token identifies the acknowledged or writable slot. */
enum
{
KVMFR_CLIPBOARD_STATUS_AVAILABLE = 1U << 0,