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Merge pull request #272 from mdboom/package-loading-race-condition 

Fix package loading race condition
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Roman Yurchak 2018-12-10 22:25:06 +01:00 committed by GitHub
parent 7bcb3dacc2 5484bc73c8
commit 1984cc5688
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 2 deletions
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src/pyodide.js
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@ -148,8 +148,14 @@ var languagePluginLoader = new Promise((resolve, reject) => {
messageCallback(`Loading ${packageList}`);
}
window.pyodide._module.monitorRunDependencies = (n) => {
if (n === 0) {
// monitorRunDependencies is called at the beginning and the end of each
// package being loaded. We know we are done when it has been called
// exactly "toLoad * 2" times.
var packageCounter = Object.keys(toLoad).length * 2;
window.pyodide._module.monitorRunDependencies = () => {
packageCounter--;
if (packageCounter === 0) {
for (let package in toLoad) {
window.pyodide.loadedPackages[package] = toLoad[package];
}