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40 lines
875 B
C
40 lines
875 B
C
#ifndef SC_DEVICEMSG_H
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#define SC_DEVICEMSG_H
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#include "common.h"
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#include <stdbool.h>
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#include <stdint.h>
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#include <unistd.h>
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#define DEVICE_MSG_MAX_SIZE (1 << 18) // 256k
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// type: 1 byte; length: 4 bytes
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#define DEVICE_MSG_TEXT_MAX_LENGTH (DEVICE_MSG_MAX_SIZE - 5)
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enum sc_device_msg_type {
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DEVICE_MSG_TYPE_CLIPBOARD,
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DEVICE_MSG_TYPE_ACK_CLIPBOARD,
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};
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struct sc_device_msg {
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enum sc_device_msg_type type;
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union {
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struct {
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char *text; // owned, to be freed by free()
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} clipboard;
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struct {
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uint64_t sequence;
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} ack_clipboard;
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};
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};
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// return the number of bytes consumed (0 for no msg available, -1 on error)
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ssize_t
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sc_device_msg_deserialize(const uint8_t *buf, size_t len,
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struct sc_device_msg *msg);
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void
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sc_device_msg_destroy(struct sc_device_msg *msg);
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#endif
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