添加项目文件。

2023-02-28 14:50:28 +08:00
commit e20fa428dd
187 changed files with 18135 additions and 0 deletions
--- a/BreakPad/singletone/call_once.h
+++ b/BreakPad/singletone/call_once.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2016 Alexander Makarov
+ *
+ * Source:
+ * https://wiki.qt.io/Qt_thread-safe_singleton
+ *
+ * This file is a part of Breakpad-qt library.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ */
+
+
+#ifndef CALL_ONCE
+#define CALL_ONCE
+
+#include <QtGlobal>
+#include <QAtomicInt>
+#include <QMutex>
+#include <QWaitCondition>
+#include <QThreadStorage>
+#include <QThread>
+
+namespace CallOnce {
+    enum ECallOnce {
+        CO_Request,
+        CO_InProgress,
+        CO_Finished
+    };
+
+    Q_GLOBAL_STATIC(QThreadStorage<QAtomicInt*>, once_flag)
+}
+
+template <class Function>
+inline static void qCallOnce(Function func, QBasicAtomicInt& flag)
+{
+    using namespace CallOnce;
+
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+    int protectFlag = flag.fetchAndStoreAcquire(flag);
+#elif QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+    int protectFlag = flag.fetchAndStoreAcquire(flag.loadRelaxed());
+#else
+    int protectFlag = flag.fetchAndStoreAcquire(flag.load());
+#endif
+
+    if (protectFlag == CO_Finished)
+        return;
+    if (protectFlag == CO_Request && flag.testAndSetRelaxed(protectFlag,
+                                                           CO_InProgress)) {
+        func();
+        flag.fetchAndStoreRelease(CO_Finished);
+    }
+    else {
+        do {
+            QThread::yieldCurrentThread();
+        }
+        while (!flag.testAndSetAcquire(CO_Finished, CO_Finished));
+    }
+}
+
+template <class Function>
+inline static void qCallOncePerThread(Function func)
+{
+    using namespace CallOnce;
+    if (!once_flag()->hasLocalData()) {
+        once_flag()->setLocalData(new QAtomicInt(CO_Request));
+        qCallOnce(func, *once_flag()->localData());
+    }
+}
+
+#endif // CALL_ONCE
+
--- a/BreakPad/singletone/singleton.h
+++ b/BreakPad/singletone/singleton.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2016 Alexander Makarov
+ *
+ * Source:
+ * https://wiki.qt.io/Qt_thread-safe_singleton
+ *
+ * This file is a part of Breakpad-qt library.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ */
+
+#ifndef SINGLETON
+#define SINGLETON
+
+#include <QtGlobal>
+#include <QScopedPointer>
+#include "call_once.h"
+
+template <class T>
+class Singleton
+{
+public:
+    static T& instance()
+    {
+        qCallOnce(init, flag);
+        return *tptr;
+    }
+
+    static void init()
+    {
+        tptr.reset(new T);
+    }
+
+private:
+    Singleton() {}
+    ~Singleton() {}
+    Q_DISABLE_COPY(Singleton)
+
+    static QScopedPointer<T> tptr;
+    static QBasicAtomicInt flag;
+};
+
+template<class T> QScopedPointer<T> Singleton<T>::tptr(0);
+template<class T> QBasicAtomicInt Singleton<T>::flag = Q_BASIC_ATOMIC_INITIALIZER(CallOnce::CO_Request);
+
+#endif // SINGLETON
+