How to add a contract level pause feature?

[dckc]

BLD stakers can disable a contract via a 3 day vote, but what if I want something with lower latency?

this has come up in discussion with @Chris-Hibbert and @ivanlei

[dckc]

Pause / Filter Offers

A feature for filtering (and hence effectively pausing) offers is in production in inter protocol:

The EC has direct control of contract parameters and also retains the ability to pause contract functions as a disaster response.
-- Protocol & Chain Governance - Inter Protocol User & System Docs

The feature was implemented in

• feature: give contracts the ability to pause invitations #5749

It involves using zcf.setOfferFilter() under governance.

The details are spelled out in a test:

agoric-sdk/packages/governance/test/swingsetTests/contractGovernor/test-governor.js

Line 213 in aa75efc

test.serial('offer filter', async t => {

There's also relevant code in dapp-econ-gov and econCommitteeCharter.js

Pause Timer Wakeups

We don't have anything like this in production. It could perhaps be built using continuing invitations (as discussed in #8082) and voluntary compliance:

let okToProcessTimers = true;

const processTimer = () => {
  if (!okToProcessTimers) return;
  ...
}

[dckc]

By way of example:

• Demo of pausing offers in Kread Dapp #8228

The scope of this PR grew to include some other work, but the governance work is in there:

• Add governance in KREAd Kryha/KREAd#3