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authorTarja Sundqvist <tarja.sundqvist@qt.io>2023-06-09 17:08:47 +0300
committerTarja Sundqvist <tarja.sundqvist@qt.io>2023-06-09 17:08:47 +0300
commit960a980dc885622cb84990c4da75d5060318302d (patch)
treeb02009bb0e08ec4f94f2ef1d4318679700347d9a /src/qml/debugger/qqmldebug.cpp
parent540c4e4a5def8c350a49bb68380b787ae62490c6 (diff)
parentcecf9b52904ab790e1a531698e9c5e33585227f0 (diff)
Merge remote-tracking branch 'origin/tqtc/lts-5.15.11' into tqtc/lts-5.15-opensourcev5.15.11-lts-lgpl
Diffstat (limited to 'src/qml/debugger/qqmldebug.cpp')
-rw-r--r--src/qml/debugger/qqmldebug.cpp13
1 files changed, 11 insertions, 2 deletions
diff --git a/src/qml/debugger/qqmldebug.cpp b/src/qml/debugger/qqmldebug.cpp
index 58b8ea2c4f..0ca56f3a70 100644
--- a/src/qml/debugger/qqmldebug.cpp
+++ b/src/qml/debugger/qqmldebug.cpp
@@ -44,17 +44,26 @@
#include <private/qqmlengine_p.h>
#include <private/qv4compileddata_p.h>
+#include <atomic>
#include <cstdio>
QT_REQUIRE_CONFIG(qml_debug);
QT_BEGIN_NAMESPACE
+#if __cplusplus >= 202002L
+# define Q_ATOMIC_FLAG_INIT {}
+#else
+# define Q_ATOMIC_FLAG_INIT ATOMIC_FLAG_INIT // deprecated in C++20
+#endif
+
+static std::atomic_flag s_printedWarning = Q_ATOMIC_FLAG_INIT;
+
QQmlDebuggingEnabler::QQmlDebuggingEnabler(bool printWarning)
{
- if (!QQmlEnginePrivate::qml_debugging_enabled && printWarning)
+ if (printWarning && !s_printedWarning.test_and_set(std::memory_order_relaxed))
fprintf(stderr, "QML debugging is enabled. Only use this in a safe environment.\n");
- QQmlEnginePrivate::qml_debugging_enabled = true;
+ QQmlEnginePrivate::qml_debugging_enabled.store(true, std::memory_order_relaxed);
}
/*!