/*-----------------------------------------------------------------------------+
 |  Extended Memory Semantics (EMS)                            Version 1.4.0   |
 |  Synthetic Semantics       http://www.synsem.com/       mogill@synsem.com   |
 +-----------------------------------------------------------------------------+
 |  Copyright (c) 2011-2014, Synthetic Semantics LLC.  All rights reserved.    |
 |  Copyright (c) 2015-2016, Jace A Mogill.  All rights reserved.              |
 |                                                                             |
 | Redistribution and use in source and binary forms, with or without          |
 | modification, are permitted provided that the following conditions are met: |
 |    * Redistributions of source code must retain the above copyright         |
 |      notice, this list of conditions and the following disclaimer.          |
 |    * Redistributions in binary form must reproduce the above copyright      |
 |      notice, this list of conditions and the following disclaimer in the    |
 |      documentation and/or other materials provided with the distribution.   |
 |    * Neither the name of the Synthetic Semantics nor the names of its       |
 |      contributors may be used to endorse or promote products derived        |
 |      from this software without specific prior written permission.          |
 |                                                                             |
 |    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS      |
 |    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT        |
 |    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR    |
 |    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SYNTHETIC         |
 |    SEMANTICS LLC BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,   |
 |    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,      |
 |    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR       |
 |    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF   |
 |    LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING     |
 |    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS       |
 |    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.             |
 |                                                                             |
 +-----------------------------------------------------------------------------*/
#ifndef EMS_MEMORY_ALLOCATION_H
#define EMS_MEMORY_ALLOCATION_H
#include <stdlib.h>
#include <stdint.h>

// The block size used by the memory allocator for allocating heap space.
// May be any positive non-zero value
#define EMS_MEM_BLOCKSZ 32


//  Buddy allocator control structure
struct emsMem {
  int32_t level;
  uint8_t tree[1];
};


struct emsMem *emsMem_new(int level);
void           emsMem_delete(struct emsMem *);
size_t         emsMem_alloc(struct emsMem *, size_t bytesRequested);
void           emsMem_free(struct emsMem *, size_t offset);
size_t         emsMem_size(struct emsMem *, size_t offset);
void           emsMem_dump(struct emsMem *);
size_t         emsNextPow2(int64_t x);

#endif