Summary of Changes
Create a plugin mechanism in the accounts update path so that accounts data can be streamed out to external data stores (be it Kafka or Postgres). The plugin mechanism allows
Data stores of connection strings/credentials to be configured,
Accounts with patterns to be streamed
PostgreSQL implementation of the streaming for different destination stores to be plugged in.
The code comprises 4 major parts:
accountsdb-plugin-intf: defines the plugin interface which concrete plugin should implement.
accountsdb-plugin-manager: manages the load/unload of plugins and provide interfaces which the validator can notify of accounts update to plugins.
accountsdb-plugin-postgres: the concrete plugin implementation for PostgreSQL
The validator integrations: updated streamed right after snapshot restore and after account update from transaction processing or other real updates.
The plugin is optionally loaded on demand by new validator CLI argument -- there is no impact if the plugin is not loaded.
* Inlines MessageProcessor::execute_instruction() in MessageProcessor::process_message().
* Moves MessageProcessor::create_pre_accounts() into ThisInvokeContext::push().
* Move instruction_recorders slice into InvokeContext.
* Makes account_indices optional in InvokeContext::push().
* Separates initial InvokeContext::push() from ThisInvokeContext::new().
* invoke_context.pop() the base invocation frame.
* Zip message.instructions.iter() and program_indices.iter().
* Moves ThisInvokeContext::new() to the beginning of the loop inside MessageProcessor::process_message().
* Hoists ThisInvokeContext::new() out of loop inside MessageProcessor::process_message().
* Removes unnecessary clone() from ThisInvokeContext::new() in MessageProcessor ::process_message().
* Stop ignoring errors from MessageProcessor::create_pre_accounts().
* Moves MessageProcessor::verify_account_references() and MessageProcessor::verify() into InvokeContext::verify().
* Make helper associated fn
* Add feature definition
* Add handling to preserve program-id write lock when upgradeable loader is present; restore bpf upgrade-self test
* Use single feature
* Inlines MessageProcessor::execute_instruction() in MessageProcessor::process_message().
* Moves MessageProcessor::create_pre_accounts() into ThisInvokeContext::push().
* Hoists ThisInvokeContext::new() out of loop inside MessageProcessor::process_message().
* Moves MessageProcessor::verify_account_references() and MessageProcessor::verify() into InvokeContext::verify().
