本文整理汇总了C++中QExplicitlySharedDataPointer::lock方法的典型用法代码示例。如果您正苦于以下问题：C++ QExplicitlySharedDataPointer::lock方法的具体用法？C++ QExplicitlySharedDataPointer::lock怎么用？C++ QExplicitlySharedDataPointer::lock使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QExplicitlySharedDataPointer的用法示例。
在下文中一共展示了QExplicitlySharedDataPointer::lock方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: sync
bool KConfig::sync()
{
Q_D(KConfig);
if (isImmutable() || name().isEmpty()) {
// can't write to an immutable or anonymous file.
return false;
}
if (d->bDirty && d->mBackend) {
const QByteArray utf8Locale(locale().toUtf8());
// Create the containing dir, maybe it wasn't there
d->mBackend->createEnclosing();
// lock the local file
if (d->configState == ReadWrite && !d->lockLocal()) {
qWarning() << "couldn't lock local file";
return false;
}
// Rewrite global/local config only if there is a dirty entry in it.
bool writeGlobals = false;
bool writeLocals = false;
Q_FOREACH (const KEntry &e, d->entryMap) {
if (e.bDirty) {
if (e.bGlobal) {
writeGlobals = true;
} else {
writeLocals = true;
}
if (writeGlobals && writeLocals) {
break;
}
}
}
d->bDirty = false; // will revert to true if a config write fails
if (d->wantGlobals() && writeGlobals) {
QExplicitlySharedDataPointer<KConfigBackend> tmp = KConfigBackend::create(*sGlobalFileName);
if (d->configState == ReadWrite && !tmp->lock()) {
qWarning() << "couldn't lock global file";
//unlock the local config if we're returning early
if (d->mBackend->isLocked()) {
d->mBackend->unlock();
}
d->bDirty = true;
return false;
}
if (!tmp->writeConfig(utf8Locale, d->entryMap, KConfigBackend::WriteGlobal)) {
d->bDirty = true;
}
if (tmp->isLocked()) {
tmp->unlock();
}
}
if (writeLocals) {
if (!d->mBackend->writeConfig(utf8Locale, d->entryMap, KConfigBackend::WriteOptions())) {
d->bDirty = true;
}
}
if (d->mBackend->isLocked()) {
d->mBackend->unlock();
}
}
return !d->bDirty;
}