| ... | ... | @@ -15,6 +15,25 @@ pub const DevicePathProtocol = packed struct { |
| 15 | 15 | .node = [_]u8{ 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b }, |
| 16 | 16 | }; |
| 17 | 17 | |
| 18 | /// Returns the next DevicePathProtocol node in the sequence, if any. |
| 19 | pub fn next(self: *DevicePathProtocol) ?*DevicePathProtocol { |
| 20 | if (self.type == .End and @intToEnum(EndDevicePath.Subtype, self.subtype) == .EndEntire) |
| 21 | return null; |
| 22 | |
| 23 | return @ptrCast(*DevicePathProtocol, @ptrCast([*]u8, self) + self.length); |
| 24 | } |
| 25 | |
| 26 | /// Calculates the total length of the device path structure in bytes, including the end of device path node. |
| 27 | pub fn size(self: *DevicePathProtocol) usize { |
| 28 | var node = self; |
| 29 | |
| 30 | while (node.next()) |next_node| { |
| 31 | node = next_node; |
| 32 | } |
| 33 | |
| 34 | return (@ptrToInt(node) + node.length) - @ptrToInt(self); |
| 35 | } |
| 36 | |
| 18 | 37 | pub fn getDevicePath(self: *const DevicePathProtocol) ?DevicePath { |
| 19 | 38 | return switch (self.type) { |
| 20 | 39 | .Hardware => blk: { |
fifty-six <ybham6@gmail.com> 2022-01-11 01:29:35-05:00
Andrew Kelley <andrew@ziglang.org> 2022-01-11 10:49:40-07:00
lib