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crate::ix!();
#[derive(Default)]
pub struct BlockValidationState {
base: ValidationState<BlockValidationResult>,
}
impl BlockValidationState {
delegate! {
to self.base {
pub fn invalid(&mut self,
result: BlockValidationResult,
reject_reason: Option<&str>,
debug_message: Option<&str>) -> bool;
pub fn error(&mut self, reject_reason: &String) -> bool;
pub fn is_valid(&self) -> bool;
pub fn is_invalid(&self) -> bool;
pub fn is_error(&self) -> bool;
pub fn get_result(&self) -> BlockValidationResult;
pub fn get_reject_reason(&self) -> String;
pub fn get_debug_message(&self) -> String;
pub fn to_string(&self) -> String;
}
}
}
impl Default for BlockValidationResult {
fn default() -> Self {
BlockValidationResult::BLOCK_RESULT_UNSET
}
}
/**
| A "reason" why a block was invalid, suitable
| for determining whether the provider
| of the block should be banned/ignored/disconnected/etc.
|
| These are much more granular than the
| rejection codes, which may be more useful
| for some other use-cases.
|
*/
#[derive(PartialEq,Eq,Clone,Debug)]
pub enum BlockValidationResult {
/**
| initial value. Block has not yet been
| rejected
|
*/
BLOCK_RESULT_UNSET = 0,
/**
| invalid by consensus rules (excluding
| any below reasons)
|
*/
BLOCK_CONSENSUS,
/**
| Invalid by a change to consensus rules
| more recent than SegWit.
|
| Currently unused as there are no such
| consensus rule changes, and any download
| sources realistically need to support
| SegWit in order to provide useful data,
| so differentiating between always-invalid
| and invalid-by-pre-SegWit-soft-fork
| is uninteresting.
|
*/
BLOCK_RECENT_CONSENSUS_CHANGE,
/**
| this block was cached as being invalid
| and we didn't store the reason why
|
*/
BLOCK_CACHED_INVALID,
/**
| invalid proof of work or time too old
|
*/
BLOCK_INVALID_HEADER,
/**
| the block's data didn't match the data
| committed to by the PoW
|
*/
BLOCK_MUTATED,
/**
| We don't have the previous block the
| checked one is built on
|
*/
BLOCK_MISSING_PREV,
/**
| A block this one builds on is invalid
|
*/
BLOCK_INVALID_PREV,
/**
| block timestamp was > 2 hours in the future
| (or our clock is bad)
|
*/
BLOCK_TIME_FUTURE,
/**
| the block failed to meet one of our checkpoints
|
*/
BLOCK_CHECKPOINT,
}