From b6d455a02bd338e9dc0faa09d4d8177ecd8d569a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20Mr=C3=A1zek?= <peterix@gmail.com>
Date: Sun, 10 Apr 2016 15:53:05 +0200
Subject: NOISSUE reorganize and document libraries

---
 api/logic/RWStorage.h | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 api/logic/RWStorage.h

(limited to 'api/logic/RWStorage.h')

diff --git a/api/logic/RWStorage.h b/api/logic/RWStorage.h
new file mode 100644
index 00000000..b1598ca4
--- /dev/null
+++ b/api/logic/RWStorage.h
@@ -0,0 +1,60 @@
+#pragma once
+template <typename K, typename V>
+class RWStorage
+{
+public:
+	void add(K key, V value)
+	{
+		QWriteLocker l(&lock);
+		cache[key] = value;
+		stale_entries.remove(key);
+	}
+	V get(K key)
+	{
+		QReadLocker l(&lock);
+		if(cache.contains(key))
+		{
+			return cache[key];
+		}
+		else return V();
+	}
+	bool get(K key, V& value)
+	{
+		QReadLocker l(&lock);
+		if(cache.contains(key))
+		{
+			value = cache[key];
+			return true;
+		}
+		else return false;
+	}
+	bool has(K key)
+	{
+		QReadLocker l(&lock);
+		return cache.contains(key);
+	}
+	bool stale(K key)
+	{
+		QReadLocker l(&lock);
+		if(!cache.contains(key))
+			return true;
+		return stale_entries.contains(key);
+	}
+	void setStale(K key)
+	{
+		QReadLocker l(&lock);
+		if(cache.contains(key))
+		{
+			stale_entries.insert(key);
+		}
+	}
+	void clear()
+	{
+		QWriteLocker l(&lock);
+		cache.clear();
+	}
+private:
+	QReadWriteLock lock;
+	QMap<K, V> cache;
+	QSet<K> stale_entries;
+};
\ No newline at end of file
-- 
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