rom/hyperlayers/unlocklayer.c

   1 /*
   2     Copyright © 1995-2007, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc:
   6     Lang: english
   7 */
   8 #include <aros/libcall.h>
   9 #include <proto/exec.h>
  10
  11 #define DEBUG 0
  12 #include <aros/debug.h>
  13 #undef kprintf
  14
  15 /*****************************************************************************
  16
  17     NAME */
  18 #include <proto/layers.h>
  19 #include "layers_intern.h"
  20
  21         AROS_LH1(void, UnlockLayer,
  22
  23 /*  SYNOPSIS */
  24         AROS_LHA(struct Layer *, layer, A0),
  25
  26 /*  LOCATION */
  27         struct LayersBase *, LayersBase, 17, Layers)
  28
  29 /*  FUNCTION
  30         Unlocks a layer for access by other tasks. A layer has
  31         to be unlocked as many times as it has been locked until
  32         another task can access it.
  33
  34     INPUTS
  35         layer - pointer to layer to be unlocked
  36
  37     RESULT
  38
  39     NOTES
  40
  41     EXAMPLE
  42
  43     BUGS
  44
  45     SEE ALSO
  46
  47     INTERNALS
  48
  49     HISTORY
  50         27-11-96    digulla automatically created from
  51                             layers_lib.fd and clib/layers_protos.h
  52
  53 *****************************************************************************/
  54 {
  55     AROS_LIBFUNC_INIT
  56
  57     D(bug("UnlockLayer(layer @ $%lx)\n", layer));
  58
  59     ReleaseSemaphore(&layer->Lock);
  60
  61     AROS_LIBFUNC_EXIT
  62 } /* UnlockLayer */