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polkadot-sdk
Commits
b65e336a
Commit
b65e336a
authored
5 years ago
by
Gav Wood
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substrate/primitives/consensus/babe/src/inherents.rs
+35
-35
35 additions, 35 deletions
substrate/primitives/consensus/babe/src/inherents.rs
with
35 additions
and
35 deletions
substrate/primitives/consensus/babe/src/inherents.rs
+
35
−
35
View file @
b65e336a
...
...
@@ -32,59 +32,59 @@ pub const INHERENT_IDENTIFIER: InherentIdentifier = *b"babeslot";
pub
type
InherentType
=
u64
;
/// Auxiliary trait to extract BABE inherent data.
pub
trait
BabeInherentData
{
/// Get BABE inherent data.
fn
babe_inherent_data
(
&
self
)
->
Result
<
InherentType
,
Error
>
;
/// Replace BABE inherent data.
fn
babe_replace_inherent_data
(
&
mut
self
,
new
:
InherentType
);
/// Get BABE inherent data.
fn
babe_inherent_data
(
&
self
)
->
Result
<
InherentType
,
Error
>
;
/// Replace BABE inherent data.
fn
babe_replace_inherent_data
(
&
mut
self
,
new
:
InherentType
);
}
impl
BabeInherentData
for
InherentData
{
fn
babe_inherent_data
(
&
self
)
->
Result
<
InherentType
,
Error
>
{
self
.get_data
(
&
INHERENT_IDENTIFIER
)
.and_then
(|
r
|
r
.ok_or_else
(||
"BABE inherent data not found"
.into
()))
}
fn
babe_inherent_data
(
&
self
)
->
Result
<
InherentType
,
Error
>
{
self
.get_data
(
&
INHERENT_IDENTIFIER
)
.and_then
(|
r
|
r
.ok_or_else
(||
"BABE inherent data not found"
.into
()))
}
fn
babe_replace_inherent_data
(
&
mut
self
,
new
:
InherentType
)
{
self
.replace_data
(
INHERENT_IDENTIFIER
,
&
new
);
}
fn
babe_replace_inherent_data
(
&
mut
self
,
new
:
InherentType
)
{
self
.replace_data
(
INHERENT_IDENTIFIER
,
&
new
);
}
}
/// Provides the slot duration inherent data for BABE.
#[cfg(feature
=
"std"
)]
pub
struct
InherentDataProvider
{
slot_duration
:
u64
,
slot_duration
:
u64
,
}
#[cfg(feature
=
"std"
)]
impl
InherentDataProvider
{
/// Constructs `Self`
pub
fn
new
(
slot_duration
:
u64
)
->
Self
{
Self
{
slot_duration
}
}
/// Constructs `Self`
pub
fn
new
(
slot_duration
:
u64
)
->
Self
{
Self
{
slot_duration
}
}
}
#[cfg(feature
=
"std"
)]
impl
ProvideInherentData
for
InherentDataProvider
{
fn
on_register
(
&
self
,
providers
:
&
InherentDataProviders
)
->
Result
<
(),
Error
>
{
if
!
providers
.has_provider
(
&
sp_timestamp
::
INHERENT_IDENTIFIER
)
{
// Add the timestamp inherent data provider, as we require it.
providers
.register_provider
(
sp_timestamp
::
InherentDataProvider
)
}
else
{
Ok
(())
}
}
fn
on_register
(
&
self
,
providers
:
&
InherentDataProviders
)
->
Result
<
(),
Error
>
{
if
!
providers
.has_provider
(
&
sp_timestamp
::
INHERENT_IDENTIFIER
)
{
// Add the timestamp inherent data provider, as we require it.
providers
.register_provider
(
sp_timestamp
::
InherentDataProvider
)
}
else
{
Ok
(())
}
}
fn
inherent_identifier
(
&
self
)
->
&
'static
InherentIdentifier
{
&
INHERENT_IDENTIFIER
}
fn
inherent_identifier
(
&
self
)
->
&
'static
InherentIdentifier
{
&
INHERENT_IDENTIFIER
}
fn
provide_inherent_data
(
&
self
,
inherent_data
:
&
mut
InherentData
)
->
Result
<
(),
Error
>
{
let
timestamp
=
inherent_data
.timestamp_inherent_data
()
?
;
let
slot_number
=
timestamp
/
self
.slot_duration
;
inherent_data
.put_data
(
INHERENT_IDENTIFIER
,
&
slot_number
)
}
fn
provide_inherent_data
(
&
self
,
inherent_data
:
&
mut
InherentData
)
->
Result
<
(),
Error
>
{
let
timestamp
=
inherent_data
.timestamp_inherent_data
()
?
;
let
slot_number
=
timestamp
/
self
.slot_duration
;
inherent_data
.put_data
(
INHERENT_IDENTIFIER
,
&
slot_number
)
}
fn
error_to_string
(
&
self
,
error
:
&
[
u8
])
->
Option
<
String
>
{
Error
::
decode
(
&
mut
&
error
[
..
])
.map
(|
e
|
e
.into_string
())
.ok
()
}
fn
error_to_string
(
&
self
,
error
:
&
[
u8
])
->
Option
<
String
>
{
Error
::
decode
(
&
mut
&
error
[
..
])
.map
(|
e
|
e
.into_string
())
.ok
()
}
}
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