| /// `ReturnVariant` describes what value type the kernel has returned. |
| // ReturnVariant is not an enum so that it can be converted from a u32 for free. |
| // TODO: derive(Debug) is currently only enabled for test builds, which is |
| // necessary so it can be used in assert_eq!. We should develop a lighter-weight |
| // Debug implementation and see if it is small enough to enable on non-Debug |
| // builds. |
| #[cfg_attr(test, derive(Debug))] |
| #[derive(Clone, Copy, PartialEq, Eq)] |
| pub struct ReturnVariant(u32); |
| |
| impl From<u32> for ReturnVariant { |
| fn from(value: u32) -> ReturnVariant { |
| ReturnVariant(value) |
| } |
| } |
| |
| impl From<ReturnVariant> for u32 { |
| fn from(return_variant: ReturnVariant) -> u32 { |
| return_variant.0 |
| } |
| } |
| |
| pub const FAILURE: ReturnVariant = ReturnVariant(0); |
| pub const FAILURE_U32: ReturnVariant = ReturnVariant(1); |
| pub const FAILURE_2_U32: ReturnVariant = ReturnVariant(2); |
| pub const FAILURE_U64: ReturnVariant = ReturnVariant(3); |
| pub const SUCCESS: ReturnVariant = ReturnVariant(128); |
| pub const SUCCESS_U32: ReturnVariant = ReturnVariant(129); |
| pub const SUCCESS_2_U32: ReturnVariant = ReturnVariant(130); |
| pub const SUCCESS_U64: ReturnVariant = ReturnVariant(131); |
| pub const SUCCESS_3_U32: ReturnVariant = ReturnVariant(132); |
| pub const SUCCESS_U32_U64: ReturnVariant = ReturnVariant(133); |
