gonzui

    1: /*
    2:  *----------------------------------------------------------------------
    3:  *    T-Kernel 2.0 Software Package
    4:  *
    5:  *    Copyright 2011 by Ken Sakamura.
    6:  *    This software is distributed under the latest version of T-License 2.x.
    7:  *----------------------------------------------------------------------
    8:  *
    9:  *    Released by T-Engine Forum(http://www.t-engine.org/) at 2011/05/17.
   10:  *    Modified by TRON Forum(http://www.tron.org/) at 2015/06/01.
   11:  *
   12:  *----------------------------------------------------------------------
   13:  */
   14: 
   15: /*
   16:  *      @(#)memalloc.h (sys)
   17:  *
   18:  *      Memory allocation library
   19:  */
   20: 
   21: #ifndef __SYS_MEMALLOC_H__
   22: #define __SYS_MEMALLOC_H__
   23: 
   24: #include <basic.h>
   25: #include <tk/typedef.h>
   26: #include <sys/queue.h>
   27: 
   28: #ifdef __cplusplus
   29: extern "C" {
   30: #endif
   31: 
   32: /*
   33:  * Memory allocation control information
   34:  *      In the address, the &areaque position must be aligned in
   35:  *      8 byte units. (The lower three bits must be 0)
   36:  *      The 'nouse' area is used to adjust the address.
   37:  *      It is not possible to write to 'nouse'.
   38:  */
   39: typedef struct MemoryAllocateControlBlock {
   40:         const QUEUE    nouse;             /* Area used for alignment */
   41: 
   42:         /* Area queue connects the various partitioned areas of the
   43:          * allocated page.
   44:          * Addresses are arranged in ascending order within each page,
   45:          * and in no particular order between pages. */
   46:         QUEUE          areaque;
   47:         /* Free queue connects unused areas within the allocated
   48:          * page. Arranged in order of free area size, starting with
   49:          * the smallest. */
   50:         QUEUE          freeque;
   51: 
   52:         UINT           pagesz;          /* Page size (number of bytes) */
   53:         UINT           mematr;          /* Memory attributes */
   54:         INT            testmode; /* Test mode */
   55: 
   56:         /* Memory allocate/release function */
   57:         void* (*getblk)( INT nblk, UINT mematr );
   58:         void  (*relblk)( void *ptr );
   59: } MACB;
   60: 
   61: /*
   62:  * Correction to align the &areaque position with the 8 byte boundary
   63:  */
   64: #define AlignMACB(macb)         ( (MACB*)((UW)macb & ~0x00000007U) )
   65: 
   66: IMPORT ER    _tkm_init( UINT mematr, MACB *macb );  /* for T-Kernel use */
   67: IMPORT ER    _mem_init( UINT mematr, MACB *macb );  /* for extension use */
   68: 
   69: IMPORT void* _mem_malloc( size_t size, MACB *macb );
   70: IMPORT void* _mem_calloc( size_t nmemb, size_t size, MACB *macb );
   71: IMPORT void* _mem_realloc( void *ptr, size_t size, MACB *macb );
   72: IMPORT void  _mem_free( void *ptr, MACB *macb );
   73: IMPORT void  _mem_malloctest( int mode, MACB *macb );
   74: IMPORT BOOL  _mem_malloccheck( void *ptr, MACB *macb );
   75: 
   76: /*
   77:  * Option setting: minimum fragment size
   78:  *      must be size 'sizeof(QUEUE) * 2' or more.
   79:  */
   80: IMPORT size_t _mem_minfragment;
   81: 
   82: #ifdef __cplusplus
   83: }
   84: #endif
   85: #endif /* __SYS_MEMALLOC_H__ */