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abci: codespace (#2557)

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* abci: codespace

* changelog
This commit is contained in:
Ethan Buchman
2018-10-06 09:20:15 -04:00
committed by GitHub
parent 2d726a620b
commit f471fc4963
4 changed files with 343 additions and 177 deletions
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8
docs/spec/abci/abci.md
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@@ -29,10 +29,15 @@ Some methods (`Echo, Info, InitChain, BeginBlock, EndBlock, Commit`),
don't return errors because an error would indicate a critical failure
in the application and there's nothing Tendermint can do. The problem
should be addressed and both Tendermint and the application restarted.
All other methods (`SetOption, Query, CheckTx, DeliverTx`) return an
application-specific response `Code uint32`, where only `0` is reserved
for `OK`.
Finally, `Query`, `CheckTx`, and `DeliverTx` include a `Codespace string`, whose
intended use is to disambiguate `Code` values returned by different domains of the
application. The `Codespace` is a namespace for the `Code`.
## Tags
Some methods (`CheckTx, BeginBlock, DeliverTx, EndBlock`)
@@ -215,6 +220,7 @@ Commit are included in the header of the next block.
Note that this is the height of the block containing the
application's Merkle root hash, which represents the state as it
was after committing the block at Height-1
- `Codespace (string)`: Namespace for the `Code`.
- **Usage**:
- Query for data from the application at current or past height.
- Optionally return Merkle proof.
@@ -257,6 +263,7 @@ Commit are included in the header of the next block.
- `GasUsed (int64)`: Amount of gas consumed by transaction.
- `Tags ([]cmn.KVPair)`: Key-Value tags for filtering and indexing
transactions (eg. by account).
- `Codespace (string)`: Namespace for the `Code`.
- **Usage**:
- Technically optional - not involved in processing blocks.
- Guardian of the mempool: every node runs CheckTx before letting a
@@ -284,6 +291,7 @@ Commit are included in the header of the next block.
- `GasUsed (int64)`: Amount of gas consumed by transaction.
- `Tags ([]cmn.KVPair)`: Key-Value tags for filtering and indexing
transactions (eg. by account).
- `Codespace (string)`: Namespace for the `Code`.
- **Usage**:
- The workhorse of the application - non-optional.
- Execute the transaction in full.