source: rtems/cpukit/score/src/heapsizeofuserarea.c @ 3127180

4.104.114.84.95
Last change on this file since 3127180 was 3127180, checked in by Ralf Corsepius <ralf.corsepius@…>, on 03/29/04 at 12:51:43

2004-04-29 Ralf Corsepius <ralf_corsepius@…>

  • score/src/Unlimited.txt, score/src/chain.c, score/src/coremsg.c, score/src/coremsgbroadcast.c, score/src/coremsgclose.c, score/src/coremsgflush.c, score/src/coremsgflushsupp.c, score/src/coremsgseize.c, score/src/coremsgsubmit.c, score/src/coremutex.c, score/src/coremutexflush.c, score/src/coresem.c, score/src/coresemflush.c, score/src/coretod.c, score/src/coretodtickle.c, score/src/coretodtoseconds.c, score/src/coretodvalidate.c, score/src/heap.c, score/src/heapallocate.c, score/src/heapextend.c, score/src/heapfree.c, score/src/heapsizeofuserarea.c, score/src/interr.c, score/src/iterateoverthreads.c, score/src/mpci.c, score/src/object.c, score/src/objectallocate.c, score/src/objectallocatebyindex.c, score/src/objectclearname.c, score/src/objectcomparenameraw.c, score/src/objectcomparenamestring.c, score/src/objectcopynameraw.c, score/src/objectcopynamestring.c, score/src/objectextendinformation.c, score/src/objectfree.c, score/src/objectget.c, score/src/objectgetbyindex.c, score/src/objectgetisr.c, score/src/objectgetnoprotection.c, score/src/objectidtoname.c, score/src/objectinitializeinformation.c, score/src/objectmp.c, score/src/objectnametoid.c, score/src/objectshrinkinformation.c, score/src/thread.c, score/src/threadcreateidle.c, score/src/threadget.c, score/src/threadidlebody.c, score/src/threadinitialize.c, score/src/threadmp.c, score/src/threadq.c, score/src/threadqdequeuepriority.c, score/src/threadqenqueuepriority.c, score/src/threadqfirstpriority.c, score/src/threadqflush.c, score/src/threadreset.c, score/src/threadrestart.c, score/src/threadsettransient.c, score/src/threadstackallocate.c, score/src/threadstart.c, score/src/userext.c, score/src/watchdoginsert.c, score/src/wkspace.c: Convert to using c99 fixed size types.
  • Property mode set to 100644
File size: 1.5 KB
Line 
1/*
2 *  Heap Handler
3 *
4 *  COPYRIGHT (c) 1989-1999.
5 *  On-Line Applications Research Corporation (OAR).
6 *
7 *  The license and distribution terms for this file may be
8 *  found in the file LICENSE in this distribution or at
9 *  http://www.rtems.com/license/LICENSE.
10 *
11 *  $Id$
12 */
13
14
15#include <rtems/system.h>
16#include <rtems/score/sysstate.h>
17#include <rtems/score/heap.h>
18
19/*PAGE
20 *
21 *  _Heap_Size_of_user_area
22 *
23 *  This kernel routine returns the size of the memory area
24 *  given heap block.
25 *
26 *  Input parameters:
27 *    the_heap         - pointer to heap header
28 *    starting_address - starting address of the memory block to free.
29 *    size             - pointer to size of area
30 *
31 *  Output parameters:
32 *    size  - size of area filled in
33 *    TRUE  - if starting_address is valid heap address
34 *    FALSE - if starting_address is invalid heap address
35 */
36
37boolean _Heap_Size_of_user_area(
38  Heap_Control        *the_heap,
39  void                *starting_address,
40  uint32_t            *size
41)
42{
43  Heap_Block        *the_block;
44  Heap_Block        *next_block;
45  uint32_t           the_size;
46
47  the_block = _Heap_User_block_at( starting_address );
48 
49  if ( !_Heap_Is_block_in( the_heap, the_block ) ||
50        _Heap_Is_block_free( the_block ) )
51    return( FALSE );
52
53  the_size   = _Heap_Block_size( the_block );
54  next_block = _Heap_Block_at( the_block, the_size );
55
56  if ( !_Heap_Is_block_in( the_heap, next_block ) ||
57       (the_block->front_flag != next_block->back_flag) )
58    return( FALSE );
59
60  *size = the_size;
61  return( TRUE );
62}
63
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