dcrd/database
Dave Collins ad02d8f300
multi: Go 1.19 doc comment formatting.
This modifies the entire repository to use the new formatting of doc
comments in the upcoming Go 1.19 release.

The primary motivating factors for this are:

- Builds check that files are formatted per gofmt and that will no
  longer be true as of Go 1.19 without these changes
- Separating all the updates into a single commit ensures these
  documentation only formatting changes do not clutter up diffs that
  actually change code

For the most part, the changes are just the automated changes suggested
by the Go 1.19 version of gofmt, but there are also a few cases where
the comments were reworded a bit to play nicely with the new formatting
requirements.

For example, the new version of gofmt reformats and collapses nested
lists where as the existing version does not.  Thus, instances of nested
lists have been changed to either eliminate them or use mixed markers
which produce expect results.
2022-07-30 04:08:58 -05:00
..
cmd/dbtool multi: Introduce database/v3 module. 2021-08-02 08:29:46 -05:00
ffldb multi: Go 1.19 doc comment formatting. 2022-07-30 04:08:58 -05:00
internal/treap multi: Go 1.19 doc comment formatting. 2022-07-30 04:08:58 -05:00
testdata multi: Only use module-scoped data in tests. 2018-08-16 15:08:07 -05:00
doc.go multi: Go 1.19 doc comment formatting. 2022-07-30 04:08:58 -05:00
driver_test.go multi: Introduce database/v3 module. 2021-08-02 08:29:46 -05:00
driver.go multi: update database error types. 2020-12-18 13:40:32 -06:00
error_test.go multi: avoid using subscriber lifecycle in catchup. 2021-10-12 18:52:50 -05:00
error.go multi: integrate index subscriber. 2021-10-12 18:52:50 -05:00
example_test.go multi: Introduce database/v3 module. 2021-08-02 08:29:46 -05:00
go.mod multi: Support module graph prune and lazy load. 2022-03-25 07:20:01 -05:00
go.sum multi: Support module graph prune and lazy load. 2022-03-25 07:20:01 -05:00
interface.go database: Add Flush to DB interface. 2021-05-13 22:43:30 -05:00
log.go database: Remove deprecated DisableLog. 2021-09-10 07:54:27 -05:00
README.md database: Correct README rpcclient link. 2021-09-01 10:18:45 -05:00

database

Build Status ISC License Doc

Package database provides a block and metadata storage database.

Please note that this package is intended to enable dcrd to support different database backends and is not something that a client can directly access as only one entity can have the database open at a time (for most database backends), and that entity will be dcrd.

When a client wants programmatic access to the data provided by dcrd, they'll likely want to use the rpcclient package which makes use of the JSON-RPC API.

However, this package could be extremely useful for any applications requiring Decred block storage capabilities.

The default backend, ffldb, has a strong focus on speed, efficiency, and robustness. It makes use of leveldb for the metadata, flat files for block storage, and strict checksums in key areas to ensure data integrity.

Feature Overview

  • Key/value metadata store
  • Decred block storage
  • Efficient retrieval of block headers and regions (transactions, scripts, etc)
  • Read-only and read-write transactions with both manual and managed modes
  • Nested buckets
  • Iteration support including cursors with seek capability
  • Supports registration of backend databases
  • Comprehensive test coverage

Installation

$ go get github.com/decred/dcrd/database2

Examples

  • Basic Usage Example Demonstrates creating a new database and using a managed read-write transaction to store and retrieve metadata.

  • Block Storage and Retrieval Example Demonstrates creating a new database, using a managed read-write transaction to store a block, and then using a managed read-only transaction to fetch the block.

License

Package database is licensed under the copyfree ISC License.