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acbc46e708
Not a full list since not all can easily be tested but hey, better than nothing. See https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/2181 Assisted-by: Claude:claude-claude-opus-4-6 Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/2187>
56 lines
1.2 KiB
Python
56 lines
1.2 KiB
Python
# SPDX-License-Identifier: MIT
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#
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# MIT-SHM extension protocol request builders for byteswap testing.
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import struct
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from dataclasses import dataclass
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# SHM minor opcodes
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ShmQueryVersion = 0
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ShmAttach = 1
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ShmDetach = 2
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ShmPutImage = 3
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ShmGetImage = 4
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ShmCreatePixmap = 5
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ShmAttachFd = 6
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ShmCreateSegment = 7
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@dataclass
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class QueryVersionRequest:
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"""ShmQueryVersion request."""
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opcode: int
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def to_bytes(self, byte_order: str = "<") -> bytes:
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return struct.pack(
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f"{byte_order}BBH",
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self.opcode,
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ShmQueryVersion,
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1,
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)
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@dataclass
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class CreateSegmentRequest:
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"""ShmCreateSegment request.
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Creates a shared memory segment owned by the server.
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Returns a file descriptor and whether the segment is read-only.
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"""
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opcode: int
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shmseg: int
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size: int
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read_only: bool = False
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def to_bytes(self, byte_order: str = "<") -> bytes:
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return struct.pack(
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f"{byte_order}BBH II Bxxx",
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self.opcode,
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ShmCreateSegment,
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4, # 16 bytes = 4 words
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self.shmseg,
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self.size,
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1 if self.read_only else 0,
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)
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