32 lines
872 B
JavaScript
32 lines
872 B
JavaScript
'use strict';
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/*
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* yield_fetch.js (extends yield_rooted_or.js)
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*
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* Intersperse queries which use the FETCH stage with updates and deletes of documents they may
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* match.
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*/
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load('jstests/concurrency/fsm_libs/extend_workload.js'); // for extendWorkload
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load('jstests/concurrency/fsm_workloads/yield_rooted_or.js'); // for $config
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var $config = extendWorkload($config, function($config, $super) {
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/*
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* Issue a query that will use the FETCH stage.
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*/
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$config.states.query = function fetch(db, collName) {
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var nMatches = 100;
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var cursor = db[collName].find({ c: { $lt: nMatches } })
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.batchSize(this.batchSize);
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var verifier = function fetchVerifier(doc, prevDoc) {
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return doc.c < nMatches;
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};
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this.advanceCursor(cursor, verifier);
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};
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return $config;
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});
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