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Bail early from ScriptEngine::run if stopped

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evaluate() bails anyway, so this will avoid the cost of init().
If run() is invoked from runInThread(), this may avoid a race
where _isRunning is set after it is checked because the check
occured during init().
This commit is contained in:
Zach Pomerantz 2015-11-03 10:36:25 -08:00
parent 27551b8532
commit 6bf9a4518a
1 changed files with 5 additions and 4 deletions
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9
libraries/script-engine/src/ScriptEngine.cpp
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@ -646,13 +646,14 @@ QScriptValue ScriptEngine::evaluate(const QString& sourceCode, const QString& fi
}
void ScriptEngine::run() {
// TODO: can we add a short circuit for _stoppingAllScripts here? What does it mean to not start running if
// we're in the process of stopping?
if (_stoppingAllScripts) {
return; // bail early - avoid setting state in init(), as evaluate() will bail too
}
if (!_isInitialized) {
init();
}
_isRunning = true;
_isFinished = false;
if (_wantSignals) {