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'use strict';
load('jstests/concurrency/fsm_libs/errors.js'); // for IterationEnd
/**
* background_base.js
*
* This is a base background workload that provides two helpful states that can be
* used in any derived workloads. It provides a 'wait' state that just waits a specified
* number of milliseconds and a 'checkForTermination' state that checks to see if the
* foreground workloads have finished. If they have, the state terminates the workload.
*/
var $config = (function() {
var data = {
millisecondsToSleep: 4000,
};
var states = {
wait: function wait(db, collName) {
sleep(this.millisecondsToSleep);
},
checkForTermination: function checkForTermination(db, collName) {
var coll = db.getSiblingDB('config').fsm_background;
var numDocs = coll.find({ terminate: true }).itcount();
if (numDocs >= 1) {
throw new IterationEnd('Background workload was instructed to terminate');
}
}
};
var transitions = {
wait: { checkForTermination: 1 },
checkForTermination: { wait: 1 }
};
var teardown = function teardown(db, collName, cluster) {
db.getSiblingDB('config').fsm_background.drop();
};
return {
threadCount: 1,
iterations: Number.MAX_SAFE_INTEGER,
data: data,
states: states,
startState: 'wait',
teardown: teardown,
transitions: transitions
};
})();
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