Add thread-safe Queue class

* Add m_queue member to Logic class

Change-Id: I31574fccd48cddc8bbb467568cf72c4d80d94803

2 files changed, 62 insertions, 0 deletions

diff --git a/src/include/cchecker/logic.h b/src/include/cchecker/logic.h
index 2f4a60b..3442890 100644
--- a/src/include/cchecker/logic.h
+++ b/src/include/cchecker/logic.h
@@ -29,6 +29,7 @@
 #include <list>
 
 #include <cchecker/app.h>
+#include <cchecker/queue.h>
 
 namespace CCHECKER {
 
@@ -91,6 +92,7 @@ class Logic {
                         void *logic_ptr)
                 );
 
+        Queue m_queue;
         std::list<app_t> m_buffer;
         DB::SqlQuery *m_sqlquery;
         bool m_is_online;
diff --git a/src/include/cchecker/queue.h b/src/include/cchecker/queue.h
new file mode 100644
index 0000000..7100265
--- /dev/null
+++ b/src/include/cchecker/queue.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+/*
+ * @file        queue.h
+ * @author      Janusz Kozerski (j.kozerski@samsung.com)
+ * @version     1.0
+ * @brief       This file is the implementation of thread-safe queue
+ */
+
+#ifndef CCHECKER_QUEUE_H
+#define CCHECKER_QUEUE_H
+
+#include <mutex>
+#include <queue>
+
+#include <cchecker/app.h>
+
+namespace CCHECKER {
+
+struct event_t {
+    enum class event_type_t {
+        APP_INSTALL,
+        APP_UNINSTALL,
+        EVENT_TYPE_UNKNOWN
+    };
+
+    event_type_t event_type;
+    app_t        app;
+
+    event_t();
+    event_t(const app_t &app, event_type_t type);
+};
+
+class Queue {
+    public:
+        void push_event(const event_t &event);
+        bool pop_event(event_t &event);
+        bool empty();
+
+    private:
+        std::mutex          m_mutex;
+        std::queue<event_t> m_event_list;
+};
+
+} // CCHECKER
+
+#endif // CCHECKER_QUEUE_H