Function: terminateRail(uint256 railId)

This function terminates a rail by setting its end epoch, optionally notifying the validator, removing its rate from the payer’s lockup rate, and updating operator rate usage. It is callable by the operator or a fully settled client.

Inputs

• railId

  • Control: Fully controlled by the caller.

  • Constraints: Rail must be active and not already terminated; caller must be the operator or the rail client is fully settled.

  • Impact: Rail is terminated and will close at the end of the grace period.

Branches and code coverage

Intended branches

• Terminate as client (settled) or operator.

  Test coverage

• Reject unauthorized caller.

  Test coverage

• Notify validator (if set).

  Test coverage

• Reduce lockup rate and operator usage.

  Test coverage