rom/dos/unlockrecord.c

   1 /*
   2     Copyright © 1995-2013, 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         Release a lock made with LockRecord().
  29
  30     INPUTS
  31         fh     - filehandle the lock was made on
  32         offset - starting position of the lock
  33         length - length of the record in bytes
  34
  35     RESULT
  36
  37     NOTES
  38         The length and offset must match the corresponding LockRecord()
  39         call.
  40
  41     EXAMPLE
  42
  43     BUGS
  44
  45     SEE ALSO
  46         LockRecord(), UnLockRecords()
  47
  48     INTERNALS
  49
  50 *****************************************************************************/
  51 {
  52     AROS_LIBFUNC_INIT
  53
  54     LONG status;
  55     struct FileHandle *fileH = BADDR(fh);
  56
  57     if (fh == BNULL)
  58     {
  59         return DOSFALSE;
  60     }
  61
  62     status = dopacket3(DOSBase, NULL, fileH->fh_Type, ACTION_FREE_RECORD, fileH->fh_Arg1, offset, length);
  63
  64     return status;
  65
  66     AROS_LIBFUNC_EXIT
  67 } /* UnLockRecord */