Add OOM score adjust func
Change-Id: Ic82837d98499f41b0701d6eba55ff9c000362b41
石博文 authored 6 years ago
sbwtw committed 6 years ago
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a.loadTranslator();
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a.setAttribute(Qt::AA_EnableHighDpiScaling, true);
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a.setTheme("light");
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#ifdef Q_OS_UNIX
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a.setOOMScoreAdj(500);
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#endif
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if (!a.setSingleInstance("deepin-tool-kit-examples")) {
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qDebug() << "another instance is running!!";
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d->setTheme(theme);
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}
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#ifdef Q_OS_UNIX
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/**
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* @brief DApplication::setOOMScoreAdj set Out-Of-Memory score
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* @param score vaild range is [-1000, 1000]
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*/
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void DApplication::setOOMScoreAdj(const int score)
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{
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if (score > 1000 || score < -1000)
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qWarning() << "OOM score adjustment value out of range: " << score;
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QFile f("/proc/self/oom_score_adj");
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if (!f.open(QIODevice::WriteOnly))
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{
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qWarning() << "OOM score adjust failed, open file error: " << f.errorString();
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return;
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}
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f.write(std::to_string(score).c_str());
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}
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#endif
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/**
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* @brief DApplication::setSingleInstance marks this application to be single instanced.
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QString theme() const;
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void setTheme(const QString &theme);
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#ifdef Q_OS_UNIX
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void setOOMScoreAdj(const int score);
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#endif
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bool setSingleInstance(const QString &key);
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