Add getter and setter for qt_qhash_seed

In some cases it's not possible to use QT_HASH_SEED, specially when
we need to set the environment variable from inside the application,
as dynamically loaded libraries or plugins may create static QHash
instances. That would set qt_qhash_seed to a value different from
-1 and skip the env var value.

For those cases, and when we still want to set qt_qhash_seed, we
provide a way to enforce its value.

Auto-tests accessing qt_qhash_seed directly have been updated
accordingly. Usage in qdoc, uic and rcc has been left as is
for the time being.

Change-Id: I3b35b4fa0223c83b1348a6508641905a2a63266f
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>

1 files changed, 1 insertions, 6 deletions

diff --git a/tests/auto/dbus/qdbusxmlparser/tst_qdbusxmlparser.cpp b/tests/auto/dbus/qdbusxmlparser/tst_qdbusxmlparser.cpp
index 4dbe0aae7d..c57292b7db 100644
--- a/tests/auto/dbus/qdbusxmlparser/tst_qdbusxmlparser.cpp
+++ b/tests/auto/dbus/qdbusxmlparser/tst_qdbusxmlparser.cpp
@@ -64,15 +64,10 @@ private slots:
     void properties();
 };
 
-QT_BEGIN_NAMESPACE
-// Avoid QHash randomization so that the order of the XML attributes is stable
-extern Q_CORE_EXPORT QBasicAtomicInt qt_qhash_seed; // from qhash.cpp
-QT_END_NAMESPACE
-
 void tst_QDBusXmlParser::initTestCase()
 {
     // Always initialize the hash seed to 0 to get reliable test results
-    qt_qhash_seed.store(0);
+    qSetGlobalQHashSeed(0);
 }
 
 void tst_QDBusXmlParser::parsing_data()