From 29ac941c1e13d067000fe57a441ff55604d46848 Mon Sep 17 00:00:00 2001
From: Thiago Macieira <thiago.macieira@intel.com>
Date: Thu, 28 Apr 2016 18:48:11 -0700
Subject: Bearer: replace the use of QMutexPool in the Windows plugin

Use a simple Q_GLOBAL_STATIC

Change-Id: Ifea6e497f11a461db432ffff1449b14b63628c12
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
---
 src/plugins/bearer/nativewifi/main.cpp | 59 ++++++++++++++--------------------
 1 file changed, 24 insertions(+), 35 deletions(-)

(limited to 'src/plugins/bearer')

diff --git a/src/plugins/bearer/nativewifi/main.cpp b/src/plugins/bearer/nativewifi/main.cpp
index 48d79d37ee..62245a118b 100644
--- a/src/plugins/bearer/nativewifi/main.cpp
+++ b/src/plugins/bearer/nativewifi/main.cpp
@@ -35,7 +35,6 @@
 #include "platformdefs.h"
 
 #include <QtCore/qmutex.h>
-#include <QtCore/private/qmutexpool_p.h>
 #include <QtCore/qlibrary.h>
 
 #include <QtNetwork/private/qbearerplugin_p.h>
@@ -46,42 +45,32 @@
 
 QT_BEGIN_NAMESPACE
 
-static void resolveLibrary()
+static bool resolveLibraryInternal()
 {
-    static QBasicAtomicInt triedResolve = Q_BASIC_ATOMIC_INITIALIZER(false);
-
-    if (!triedResolve.loadAcquire()) {
-#ifndef QT_NO_THREAD
-        QMutexLocker locker(QMutexPool::globalInstanceGet(&local_WlanOpenHandle));
-#endif
-
-        if (!triedResolve.load()) {
-            QLibrary wlanapiLib(QLatin1String("wlanapi"));
-            local_WlanOpenHandle = (WlanOpenHandleProto)
-                wlanapiLib.resolve("WlanOpenHandle");
-            local_WlanRegisterNotification = (WlanRegisterNotificationProto)
-                wlanapiLib.resolve("WlanRegisterNotification");
-            local_WlanEnumInterfaces = (WlanEnumInterfacesProto)
-                wlanapiLib.resolve("WlanEnumInterfaces");
-            local_WlanGetAvailableNetworkList = (WlanGetAvailableNetworkListProto)
-                wlanapiLib.resolve("WlanGetAvailableNetworkList");
-            local_WlanQueryInterface = (WlanQueryInterfaceProto)
-                wlanapiLib.resolve("WlanQueryInterface");
-            local_WlanConnect = (WlanConnectProto)
-                wlanapiLib.resolve("WlanConnect");
-            local_WlanDisconnect = (WlanDisconnectProto)
-                wlanapiLib.resolve("WlanDisconnect");
-            local_WlanScan = (WlanScanProto)
-                wlanapiLib.resolve("WlanScan");
-            local_WlanFreeMemory = (WlanFreeMemoryProto)
-                wlanapiLib.resolve("WlanFreeMemory");
-            local_WlanCloseHandle = (WlanCloseHandleProto)
-                wlanapiLib.resolve("WlanCloseHandle");
-
-            triedResolve.storeRelease(true);
-        }
-    }
+    QLibrary wlanapiLib(QLatin1String("wlanapi"));
+    local_WlanOpenHandle = (WlanOpenHandleProto)
+                           wlanapiLib.resolve("WlanOpenHandle");
+    local_WlanRegisterNotification = (WlanRegisterNotificationProto)
+                                     wlanapiLib.resolve("WlanRegisterNotification");
+    local_WlanEnumInterfaces = (WlanEnumInterfacesProto)
+                               wlanapiLib.resolve("WlanEnumInterfaces");
+    local_WlanGetAvailableNetworkList = (WlanGetAvailableNetworkListProto)
+                                        wlanapiLib.resolve("WlanGetAvailableNetworkList");
+    local_WlanQueryInterface = (WlanQueryInterfaceProto)
+                               wlanapiLib.resolve("WlanQueryInterface");
+    local_WlanConnect = (WlanConnectProto)
+                        wlanapiLib.resolve("WlanConnect");
+    local_WlanDisconnect = (WlanDisconnectProto)
+                           wlanapiLib.resolve("WlanDisconnect");
+    local_WlanScan = (WlanScanProto)
+                     wlanapiLib.resolve("WlanScan");
+    local_WlanFreeMemory = (WlanFreeMemoryProto)
+                           wlanapiLib.resolve("WlanFreeMemory");
+    local_WlanCloseHandle = (WlanCloseHandleProto)
+                            wlanapiLib.resolve("WlanCloseHandle");
+    return true;
 }
+Q_GLOBAL_STATIC_WITH_ARGS(bool, resolveLibrary, (resolveLibraryInternal()))
 
 class QNativeWifiEnginePlugin : public QBearerEnginePlugin
 {
-- 
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