Roy Crihfield
85eed1f359
## Description
Resolves: https://github.com/cosmos/cosmos-sdk/issues/10117
Implements a `CommitKVStore` which separates the concerns of state storage and state commitment according to [ADR-040](eb7d939f86/docs/architecture/adr-040-storage-and-smt-state-commitments.md).
---
### Author Checklist
*All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.*
I have...
- [x] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
- [x] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting))
- [x] provided a link to the relevant issue or specification
- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules) - n/a
- [x] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing)
- [x] added a changelog entry to `CHANGELOG.md`
- [x] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [x] updated the relevant documentation or specification
- [x] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed
### Reviewers Checklist
*All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.*
I have...
- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)
24 lines
553 B
Go
24 lines
553 B
Go
package db
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type readerRWAdapter struct{ DBReader }
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// ReaderAsReadWriter returns a ReadWriter that forwards to a reader and errors if writes are
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// attempted. Can be used to pass a Reader when a ReadWriter is expected
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// but no writes will actually occur.
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func ReaderAsReadWriter(r DBReader) DBReadWriter {
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return readerRWAdapter{r}
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}
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func (readerRWAdapter) Set([]byte, []byte) error {
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return ErrReadOnly
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}
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func (readerRWAdapter) Delete([]byte) error {
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return ErrReadOnly
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}
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func (rw readerRWAdapter) Commit() error {
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rw.Discard()
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return nil
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}
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