QtNetwork: eradicate Q_FOREACH loops [needing qAsConst()]

... by replacing them with C++11 range-for loops.
To avoid detaches of these mutable Qt containers,
wrap the container in qAsConst().

Change-Id: I47c5308a6ad220b4c5495e55a3b0d38547bfa8d9
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>

src/network/access/qnetworkreplyhttpimpl.cpp

@@ -751,7 +751,7 @@ void QNetworkReplyHttpImplPrivate::postRequest(const QNetworkRequest &newHttpReq
         }
     }
 
-    foreach (const QByteArray &header, headers)
+    for (const QByteArray &header : qAsConst(headers))
         httpRequest.setHeaderField(header, newHttpRequest.rawHeader(header));
 
     if (newHttpRequest.attribute(QNetworkRequest::HttpPipeliningAllowedAttribute).toBool())

src/network/access/qnetworkrequest.cpp

@@ -779,7 +779,7 @@ static QByteArray headerValue(QNetworkRequest::KnownHeaders header, const QVaria
 
         QByteArray result;
         bool first = true;
-        foreach (const QNetworkCookie &cookie, cookies) {
+        for (const QNetworkCookie &cookie : qAsConst(cookies)) {
             if (!first)
                 result += "; ";
             first = false;
@@ -795,7 +795,7 @@ static QByteArray headerValue(QNetworkRequest::KnownHeaders header, const QVaria
 
         QByteArray result;
         bool first = true;
-        foreach (const QNetworkCookie &cookie, cookies) {
+        for (const QNetworkCookie &cookie : qAsConst(cookies)) {
             if (!first)
                 result += ", ";
             first = false;

src/network/bearer/qnetworkconfigmanager_p.cpp

@@ -115,15 +115,9 @@ QNetworkConfiguration QNetworkConfigurationManagerPrivate::defaultConfiguration(
     QNetworkConfigurationPrivatePointer defaultConfiguration;
 
     for (QBearerEngine *engine : sessionEngines) {
-        QHash<QString, QNetworkConfigurationPrivatePointer>::Iterator it;
-        QHash<QString, QNetworkConfigurationPrivatePointer>::Iterator end;
-
         QMutexLocker locker(&engine->mutex);
 
-        for (it = engine->snapConfigurations.begin(),
+        for (const auto &ptr : qAsConst(engine->snapConfigurations)) {
-             end = engine->snapConfigurations.end(); it != end; ++it) {
-            QNetworkConfigurationPrivatePointer ptr = it.value();
-
             QMutexLocker configLocker(&ptr->mutex);
 
             if ((ptr->state & QNetworkConfiguration::Active) == QNetworkConfiguration::Active) {
@@ -157,14 +151,10 @@ QNetworkConfiguration QNetworkConfigurationManagerPrivate::defaultConfiguration(
     */
 
     for (QBearerEngine *engine : sessionEngines) {
-        QHash<QString, QNetworkConfigurationPrivatePointer>::Iterator it;
-        QHash<QString, QNetworkConfigurationPrivatePointer>::Iterator end;
 
         QMutexLocker locker(&engine->mutex);
 
-        for (it = engine->accessPointConfigurations.begin(),
+        for (const auto &ptr : qAsConst(engine->accessPointConfigurations)) {
-             end = engine->accessPointConfigurations.end(); it != end; ++it) {
-            QNetworkConfigurationPrivatePointer ptr = it.value();
 
             QMutexLocker configLocker(&ptr->mutex);
             QNetworkConfiguration::BearerType bearerType = ptr->bearerType;
@@ -220,16 +210,11 @@ QList<QNetworkConfiguration> QNetworkConfigurationManagerPrivate::allConfigurati
     QMutexLocker locker(&mutex);
 
     for (QBearerEngine *engine : sessionEngines) {
-        QHash<QString, QNetworkConfigurationPrivatePointer>::Iterator it;
-        QHash<QString, QNetworkConfigurationPrivatePointer>::Iterator end;
 
         QMutexLocker locker(&engine->mutex);
 
         //find all InternetAccessPoints
-        for (it = engine->accessPointConfigurations.begin(),
+        for (const auto &ptr : qAsConst(engine->accessPointConfigurations)) {
-             end = engine->accessPointConfigurations.end(); it != end; ++it) {
-            QNetworkConfigurationPrivatePointer ptr = it.value();
-
             QMutexLocker configLocker(&ptr->mutex);
 
             if ((ptr->state & filter) == filter) {
@@ -240,10 +225,7 @@ QList<QNetworkConfiguration> QNetworkConfigurationManagerPrivate::allConfigurati
         }
 
         //find all service networks
-        for (it = engine->snapConfigurations.begin(),
+        for (const auto &ptr : qAsConst(engine->snapConfigurations)) {
-             end = engine->snapConfigurations.end(); it != end; ++it) {
-            QNetworkConfigurationPrivatePointer ptr = it.value();
-
             QMutexLocker configLocker(&ptr->mutex);
 
             if ((ptr->state & filter) == filter) {
@@ -460,7 +442,7 @@ void QNetworkConfigurationManagerPrivate::performAsyncConfigurationUpdate()
 
     updating = true;
 
-    foreach (QBearerEngine *engine, sessionEngines) {
+    for (QBearerEngine *engine : qAsConst(sessionEngines)) {
         updatingEngines.insert(engine);
         QMetaObject::invokeMethod(engine, "requestUpdate");
     }
@@ -490,7 +472,7 @@ void QNetworkConfigurationManagerPrivate::startPolling()
     if (pollTimer->isActive())
         return;
 
-    foreach (QBearerEngine *engine, sessionEngines) {
+    for (QBearerEngine *engine : qAsConst(sessionEngines)) {
         if (engine->requiresPolling() && (forcedPolling || engine->configurationsInUse())) {
             pollTimer->start();
             break;
@@ -503,7 +485,7 @@ void QNetworkConfigurationManagerPrivate::pollEngines()
 {
     QMutexLocker locker(&mutex);
 
-    foreach (QBearerEngine *engine, sessionEngines) {
+    for (QBearerEngine *engine : qAsConst(sessionEngines)) {
         if (engine->requiresPolling() && (forcedPolling || engine->configurationsInUse())) {
             pollingEngines.insert(engine);
             QMetaObject::invokeMethod(engine, "requestUpdate");

src/network/kernel/qdnslookup_winrt.cpp

@@ -146,7 +146,7 @@ void QDnsLookupRunnable::query(const int requestType, const QByteArray &requestN
         PCWSTR rawString = name.GetRawBuffer(&length);
         addresses.insert(QHostAddress(QString::fromWCharArray(rawString, length)));
     }
-    foreach (const QHostAddress &address, addresses) {
+    for (const QHostAddress &address : qAsConst(addresses)) {
         QDnsHostAddressRecord record;
         record.d->name = aceHostname;
         record.d->value = address;

src/network/kernel/qnetworkinterface.cpp

@@ -634,7 +634,7 @@ QList<QHostAddress> QNetworkInterface::allAddresses()
     const QList<QSharedDataPointer<QNetworkInterfacePrivate> > privs = manager()->allInterfaces();
     QList<QHostAddress> result;
     for (const auto &p : privs) {
-        foreach (const QNetworkAddressEntry &entry, p->addressEntries)
+        for (const QNetworkAddressEntry &entry : qAsConst(p->addressEntries))
             result += entry.ip();
     }
 

src/network/kernel/qnetworkproxy_win.cpp

@@ -392,9 +392,9 @@ public:
     }
 
     void clear() {
-        foreach (HANDLE event, m_watchEvents)
+        for (HANDLE event : qAsConst(m_watchEvents))
             CloseHandle(event);
-        foreach (HKEY key, m_registryHandles)
+        for (HKEY key : qAsConst(m_registryHandles))
             RegCloseKey(key);
 
         m_watchEvents.clear();

src/network/socket/qabstractsocket.cpp

@@ -919,7 +919,7 @@ void QAbstractSocketPrivate::resolveProxy(const QString &hostname, quint16 port)
     }
 
     // return the first that we can use
-    foreach (const QNetworkProxy &p, proxies) {
+    for (const QNetworkProxy &p : qAsConst(proxies)) {
         if (socketType == QAbstractSocket::UdpSocket &&
             (p.capabilities() & QNetworkProxy::UdpTunnelingCapability) == 0)
             continue;

src/network/socket/qtcpserver.cpp

@@ -153,7 +153,7 @@ QNetworkProxy QTcpServerPrivate::resolveProxy(const QHostAddress &address, quint
     }
 
     // return the first that we can use
-    foreach (const QNetworkProxy &p, proxies) {
+    for (const QNetworkProxy &p : qAsConst(proxies)) {
         if (p.capabilities() & QNetworkProxy::ListeningCapability)
             return p;
     }

src/network/ssl/qsslcontext_openssl.cpp

@@ -298,7 +298,7 @@ init_context:
 
         // If we have any intermediate certificates then we need to add them to our chain
         bool first = true;
-        foreach (const QSslCertificate &cert, configuration.d->localCertificateChain) {
+        for (const QSslCertificate &cert : qAsConst(configuration.d->localCertificateChain)) {
             if (first) {
                 first = false;
                 continue;

src/network/ssl/qsslsocket_mac.cpp

@@ -1227,7 +1227,7 @@ bool QSslSocketBackendPrivate::verifyPeerTrust()
     }
 
     // check the whole chain for blacklisting (including root, as we check for subjectInfo and issuer)
-    foreach (const QSslCertificate &cert, configuration.peerCertificateChain) {
+    for (const QSslCertificate &cert : qAsConst(configuration.peerCertificateChain)) {
         if (QSslCertificatePrivate::isBlacklisted(cert) && !canIgnoreVerify) {
             const QSslError error(QSslError::CertificateBlacklisted, cert);
             errors << error;
@@ -1271,7 +1271,7 @@ bool QSslSocketBackendPrivate::verifyPeerTrust()
 
     // verify certificate chain
     QCFType<CFMutableArrayRef> certArray = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
-    foreach (const QSslCertificate &cert, configuration.caCertificates) {
+    for (const QSslCertificate &cert : qAsConst(configuration.caCertificates)) {
         QCFType<CFDataRef> certData = cert.d->derData.toCFData();
         QCFType<SecCertificateRef> certRef = SecCertificateCreateWithData(NULL, certData);
         CFArrayAppendValue(certArray, certRef);

src/network/ssl/qsslsocket_openssl.cpp

@@ -1101,7 +1101,7 @@ bool QSslSocketBackendPrivate::startHandshake()
     QList<QSslError> errors;
 
     // check the whole chain for blacklisting (including root, as we check for subjectInfo and issuer)
-    foreach (const QSslCertificate &cert, configuration.peerCertificateChain) {
+    for (const QSslCertificate &cert : qAsConst(configuration.peerCertificateChain)) {
         if (QSslCertificatePrivate::isBlacklisted(cert)) {
             QSslError error(QSslError::CertificateBlacklisted, cert);
             errors << error;

src/network/ssl/qsslsocket_openssl_symbols.cpp

@@ -558,7 +558,7 @@ static QStringList findAllLibs(QLatin1String filter)
         QStringList entryList = dir.entryList(filters, QDir::Files);
 
         std::sort(entryList.begin(), entryList.end(), LibGreaterThan());
-        foreach (const QString &entry, entryList)
+        for (const QString &entry : qAsConst(entryList))
             found << path + QLatin1Char('/') + entry;
     }
 

src/network/ssl/qsslsocket_winrt.cpp

@@ -615,7 +615,7 @@ HRESULT QSslSocketBackendPrivate::onSslUpgrade(IAsyncAction *action, AsyncStatus
     }
 
     // Peer chain validation
-    foreach (const QSslCertificate &certificate, peerCertificateChain) {
+    for (const QSslCertificate &certificate : qAsConst(peerCertificateChain)) {
         if (!QSslCertificatePrivate::isBlacklisted(certificate))
             continue;
 
@@ -629,7 +629,7 @@ HRESULT QSslSocketBackendPrivate::onSslUpgrade(IAsyncAction *action, AsyncStatus
         setErrorAndEmit(QAbstractSocket::SslHandshakeFailedError, sslErrors.first().errorString());
 
         // Disconnect if there are any non-ignorable errors
-        foreach (const QSslError &error, sslErrors) {
+        for (const QSslError &error : qAsConst(sslErrors)) {
             if (ignoreErrorsList.contains(error))
                 continue;
             q->disconnectFromHost();