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| 2 |
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| 3 | |
| 4 |
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| 5 | use kernel::fmt;
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| 6 | use kernel::prelude::*;
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| 7 |
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| 8 | use crate::defs::*;
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| 9 |
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| 10 | pub(crate) type BinderResult<T = ()> = core::result::Result<T, BinderError>;
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| 11 |
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| 12 | |
| 13 | |
| 14 | pub(crate) struct BinderError {
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| 15 | pub(crate) reply: u32,
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| 16 | pub(crate) source: Option<Error>,
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| 17 | }
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| 18 |
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| 19 | impl BinderError {
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| 20 | pub(crate) fn new_dead() -> Self {
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| 21 | Self {
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| 22 | reply: BR_DEAD_REPLY,
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| 23 | source: None,
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| 24 | }
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| 25 | }
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| 26 |
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| 27 | pub(crate) fn new_frozen() -> Self {
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| 28 | Self {
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| 29 | reply: BR_FROZEN_REPLY,
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| 30 | source: None,
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| 31 | }
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| 32 | }
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| 33 |
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| 34 | pub(crate) fn new_frozen_oneway() -> Self {
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| 35 | Self {
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| 36 | reply: BR_TRANSACTION_PENDING_FROZEN,
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| 37 | source: None,
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| 38 | }
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| 39 | }
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| 40 |
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| 41 | pub(crate) fn is_dead(&self) -> bool {
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| 42 | self.reply == BR_DEAD_REPLY
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| 43 | }
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| 44 | }
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| 45 |
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| 46 | |
| 47 | |
| 48 | impl From<Error> for BinderError {
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| 49 | fn from(source: Error) -> Self {
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| 50 | Self {
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| 51 | reply: BR_FAILED_REPLY,
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| 52 | source: Some(source),
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| 53 | }
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| 54 | }
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| 55 | }
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| 56 |
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| 57 | impl From<kernel::fs::file::BadFdError> for BinderError {
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| 58 | fn from(source: kernel::fs::file::BadFdError) -> Self {
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| 59 | BinderError::from(Error::from(source))
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| 60 | }
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| 61 | }
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| 62 |
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| 63 | impl From<kernel::alloc::AllocError> for BinderError {
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| 64 | fn from(_: kernel::alloc::AllocError) -> Self {
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| 65 | Self {
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| 66 | reply: BR_FAILED_REPLY,
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| 67 | source: Some(ENOMEM),
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| 68 | }
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| 69 | }
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| 70 | }
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| 71 |
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| 72 | impl fmt::Debug for BinderError {
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| 73 | fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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| 74 | match self.reply {
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| 75 | BR_FAILED_REPLY => match self.source.as_ref() {
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| 76 | Some(source) => source.fmt(f),
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| 77 | None => f.pad("BR_FAILED_REPLY"),
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| 78 | },
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| 79 | BR_DEAD_REPLY => f.pad("BR_DEAD_REPLY"),
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| 80 | BR_FROZEN_REPLY => f.pad("BR_FROZEN_REPLY"),
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| 81 | BR_TRANSACTION_PENDING_FROZEN => f.pad("BR_TRANSACTION_PENDING_FROZEN"),
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| 82 | BR_TRANSACTION_COMPLETE => f.pad("BR_TRANSACTION_COMPLETE"),
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| 83 | _ => match self.source.as_ref() {
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| 84 | Some(source) => source.fmt(f),
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| 85 | None => self.reply.fmt(f),
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| 86 | },
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| 87 | }
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| 88 | }
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| 89 | }
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