QNetworkStatusMonitor - make it always enabled on Darwin

Also undo changes in setNetworkAccessible and setConfiguration
since they introduced a change in behavior, which results
in auto-test failing.

Change-Id: I5d74c47338bff8f964ba2e27256902c79303e00f
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>

2 files changed, 5 insertions, 28 deletions

diff --git a/src/network/access/qnetworkaccessmanager.cpp b/src/network/access/qnetworkaccessmanager.cpp
index 8bd630ad9d..d201b9e211 100644
--- a/src/network/access/qnetworkaccessmanager.cpp
+++ b/src/network/access/qnetworkaccessmanager.cpp
@@ -1039,13 +1039,10 @@ QNetworkReply *QNetworkAccessManager::deleteResource(const QNetworkRequest &requ
 void QNetworkAccessManager::setConfiguration(const QNetworkConfiguration &config)
 {
     Q_D(QNetworkAccessManager);
-    if (!d->statusMonitor.isEnabled()) {
-        d->networkConfiguration = config;
-        d->customNetworkConfiguration = true;
-        d->createSession(config);
-    } else {
-        qWarning(lcNetMon, "No network configuration can be set with network status monitor enabled");
-    }
+
+    d->networkConfiguration = config;
+    d->customNetworkConfiguration = true;
+    d->createSession(config);
 }
 
 /*!
@@ -1107,11 +1104,6 @@ void QNetworkAccessManager::setNetworkAccessible(QNetworkAccessManager::NetworkA
 {
     Q_D(QNetworkAccessManager);
 
-    if (d->statusMonitor.isEnabled()) {
-        qWarning(lcNetMon, "Can not manually set network accessibility with the network status monitor enabled");
-        return;
-    }
-
     d->defaultAccessControl = accessible == NotAccessible ? false : true;
 
     if (d->networkAccessible != accessible) {
diff --git a/src/network/kernel/qnetconmonitor_darwin.mm b/src/network/kernel/qnetconmonitor_darwin.mm
index 322c87cb4b..a64cd6e530 100644
--- a/src/network/kernel/qnetconmonitor_darwin.mm
+++ b/src/network/kernel/qnetconmonitor_darwin.mm
@@ -48,7 +48,6 @@
 #include <netinet/in.h>
 
 #include <cstring>
-#include <mutex>
 
 QT_BEGIN_NAMESPACE
 
@@ -309,20 +308,8 @@ public:
     bool isOnlineIpv4 = false;
     QNetworkConnectionMonitor ipv6Probe;
     bool isOnlineIpv6 = false;
-
-    static bool enabled;
-    static void readEnv();
 };
 
-bool QNetworkStatusMonitorPrivate::enabled = false;
-
-void QNetworkStatusMonitorPrivate::readEnv()
-{
-    bool envOk = false;
-    const int env = qEnvironmentVariableIntValue("QT_USE_NETWORK_MONITOR", &envOk);
-    enabled = envOk && env > 0;
-}
-
 QNetworkStatusMonitor::QNetworkStatusMonitor()
     : QObject(*new QNetworkStatusMonitorPrivate)
 {
@@ -400,9 +387,7 @@ bool QNetworkStatusMonitor::isNetworkAccesible()
 
 bool QNetworkStatusMonitor::isEnabled()
 {
-    static std::once_flag envRead = {};
-    std::call_once(envRead, QNetworkStatusMonitorPrivate::readEnv);
-    return QNetworkStatusMonitorPrivate::enabled;
+    return true;
 }
 
 void QNetworkStatusMonitor::reachabilityChanged(bool online)