forked from Imagelibrary/rtems
9b3f187a02
* libcsupport/src/mallocfreespace.c, rtems/Makefile.am, rtems/include/rtems/rtems/region.h, score/Makefile.am, score/include/rtems/score/heap.h, score/src/heapgetinfo.c: Add capability to return information about just the free blocks in a region or heap. Also changed the semantics of free space available to be the largest block of memory that can be allocated. * rtems/src/regiongetfreeinfo.c, score/src/heapgetfreeinfo.c: New files. : score/include/rtems/score/object.h, score/src/objectinitializeinformation.c: Remove warning.
45 lines
883 B
C
45 lines
883 B
C
/*
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* RTEMS Malloc Get Status Information
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*
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*
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* COPYRIGHT (c) 1989-2000.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif
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#define __RTEMS_VIOLATE_KERNEL_VISIBILITY__
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#include <rtems.h>
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#include <rtems/libcsupport.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <assert.h>
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#include <errno.h>
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#include <string.h>
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extern rtems_id RTEMS_Malloc_Heap;
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/*
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* Find amount of free heap remaining
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*/
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size_t malloc_free_space( void )
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{
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region_information_block heap_info;
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if ( !rtems_region_get_free_information( RTEMS_Malloc_Heap, &heap_info ) ) {
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return (size_t) heap_info.Free.largest;
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}
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return (size_t) -1;
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}
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