PAGE

pub const PAGE = packed struct(ULONG)

File

Code

pub const PAGE = packed struct(ULONG) {
    NOACCESS: bool = false,
    READONLY: bool = false,
    READWRITE: bool = false,
    WRITECOPY: bool = false,

    EXECUTE: bool = false,
    EXECUTE_READ: bool = false,
    EXECUTE_READWRITE: bool = false,
    EXECUTE_WRITECOPY: bool = false,

    GUARD: bool = false,
    NOCACHE: bool = false,
    WRITECOMBINE: bool = false,

    GRAPHICS_NOACCESS: bool = false,
    GRAPHICS_READONLY: bool = false,
    GRAPHICS_READWRITE: bool = false,
    GRAPHICS_EXECUTE: bool = false,
    GRAPHICS_EXECUTE_READ: bool = false,
    GRAPHICS_EXECUTE_READWRITE: bool = false,
    GRAPHICS_COHERENT: bool = false,
    GRAPHICS_NOCACHE: bool = false,

    Reserved19: u12 = 0,

    REVERT_TO_FILE_MAP: bool = false,

    pub fn fromProtection(protection: std.process.MemoryProtection) ?PAGE {
        // TODO https://github.com/ziglang/zig/issues/22214
        return switch (@as(u3, @bitCast(protection))) {
            0b000 => .{ .NOACCESS = true },
            0b001 => .{ .READONLY = true },
            0b010 => null,
            0b011 => .{ .READWRITE = true },
            0b100 => .{ .EXECUTE = true },
            0b101 => .{ .EXECUTE_READ = true },
            0b110 => null,
            0b111 => .{ .EXECUTE_READWRITE = true },
        };
    }
}