rom/dos/unlockrecord.c

   1 /*
   2     Copyright © 1995-2007, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc:
   6     Lang: English
   7 */
   8
   9 #include "dos_intern.h"
  10 #include <proto/exec.h>
  11
  12 /*****************************************************************************
  13
  14     NAME */
  15 #include <proto/dos.h>
  16
  17         AROS_LH3(BOOL, UnLockRecord,
  18
  19 /*  SYNOPSIS */
  20         AROS_LHA(BPTR , fh, D1),
  21         AROS_LHA(ULONG, offset, D2),
  22         AROS_LHA(ULONG, length, D3),
  23
  24 /*  LOCATION */
  25         struct DosLibrary *, DOSBase, 47, Dos)
  26
  27 /*  FUNCTION
  28
  29     Release a lock made with LockRecord().
  30
  31     INPUTS
  32
  33     fh      --  filehandle the lock was made on
  34     offset  --  starting position of the lock
  35     length  --  length of the record in bytes
  36
  37     RESULT
  38
  39     NOTES
  40
  41     The length and offset must match the corresponding LockRecord()
  42     call.
  43
  44     EXAMPLE
  45
  46     BUGS
  47
  48     SEE ALSO
  49
  50     LockRecord(), UnLockRecords()
  51
  52     INTERNALS
  53
  54 *****************************************************************************/
  55 {
  56     AROS_LIBFUNC_INIT
  57
  58     LONG status;
  59     struct FileHandle *fileH = BADDR(fh);
  60
  61     if (fh == BNULL)
  62     {
  63         return DOSFALSE;
  64     }
  65
  66     status = dopacket3(DOSBase, NULL, fileH->fh_Type, ACTION_FREE_RECORD, fileH->fh_Arg1, offset, length);
  67
  68     return status;
  69
  70     AROS_LIBFUNC_EXIT
  71 } /* UnLockRecord */