Diff: util/USPool.hpp

Revision:

14:b205267fa5f6

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/util/USPool.hpp	Tue May 16 08:58:26 2017 +0000
@@ -0,0 +1,53 @@
+#ifndef _ULTRA_SIMPLE_POOL_
+#define _ULTRA_SIMPLE_POOL_
+
+template<typename T> class USPool
+{
+    private: bool pool_usage[];
+    private: T pool[];
+    private: int len;
+   public: USPool(T init, int _size)
+    {
+        pool_usage = new bool[_size];
+        pool = new pool[_size];
+        len = _size;
+        for(int i=0; i<len; ++i)
+        {
+            pool_usage[i] = false;
+            pool[i] = init;
+        }
+    }
+    public: ~USPool()
+    {
+        delete[] pool;
+        pool = NULL;
+        delete[] pool_usage;
+        pool_usage = NULL;
+    }
+    public: T obtain(T unavail)
+    {
+        T ret = unavail;
+        for(int i=0; i<len; ++i)
+        {
+            if(pool_usage[i] == false)
+            {
+                pool_usage[i] = true;
+                ret = pool[i];
+                break;
+            }
+        }
+        return ret;
+    }
+    public: void release(T *released)
+    {
+        for(int i=0; i<len; ++i)
+        {
+            if(pool[i] == released)
+            {
+                pool_usage[i] = false;
+            }
+        }
+    }
+};
+
+#endif //_ULTRA_SIMPLE_POOL_