Diff: utility/mempool.h

Revision:

1:01c2344f98a3

Parent:

0:5350a66d5279

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/utility/mempool.h	Thu Nov 20 21:26:54 2014 +0000
@@ -0,0 +1,65 @@
+/*
+ mempool.h - sleek implementation of a memory pool
+ Copyright (c) 2013 Norbert Truchsess <norbert.truchsess@t-online.de>
+ All rights reserved.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef MEMPOOL_H
+    #define MEMPOOL_H
+
+    #include <inttypes.h>
+
+    #define POOLSTART   0
+    #define NOBLOCK     0
+
+    #include "mempool_conf.h"
+
+//#ifdef MEMBLOCK_MV
+
+//#define memblock_mv_cb(dest,src,size) MEMBLOCK_MV(dest,src,size)
+//#endif
+    #ifdef MEMBLOCK_ALLOC
+        #define memblock_alloc_cb(address, size)    MEMBLOCK_ALLOC(address, size)
+    #endif
+    #ifdef MEMBLOCK_FREE
+        #define memblock_free_cb(address, size) MEMBLOCK_FREE(address, size)
+    #endif
+struct memblock
+{
+    memaddress  begin;
+    memaddress  size;
+    memhandle   nextblock;
+};
+
+class   MemoryPool
+{
+    #ifdef MEMPOOLTEST_H
+    friend class    MemoryPoolTest;
+    #endif
+protected:
+    memaddress      poolsize;
+    struct memblock blocks[NUM_MEMBLOCKS + 1];
+    #ifdef MEMBLOCK_MV
+    virtual void    memblock_mv_cb(memaddress dest, memaddress src, memaddress size) = 0;
+    #endif
+public:
+    MemoryPool(memaddress start, memaddress size);
+    memhandle   allocBlock(memaddress);
+    void        freeBlock(memhandle);
+    void        resizeBlock(memhandle handle, memaddress position);
+    void        resizeBlock(memhandle handle, memaddress position, memaddress size);
+    memaddress  blockSize(memhandle);
+};
+#endif