workbench/libs/camd/waitmidi.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 <proto/exec.h>
  10 #include <proto/camd.h>
  11
  12 #include "camd_intern.h"
  13
  14 #undef WaitMidi
  15
  16 /*****************************************************************************
  17
  18     NAME */
  19
  20         AROS_LH2(BOOL, WaitMidi,
  21
  22 /*  SYNOPSIS */
  23         AROS_LHA(struct MidiNode *, midinode, A0),
  24         AROS_LHA(MidiMsg *, msg, A1),
  25
  26 /*  LOCATION */
  27         struct CamdBase *, CamdBase, 25, Camd)
  28
  29 /*  FUNCTION
  30                 Waits until a new message is received at the node, and
  31                 copy the message to msg.
  32
  33     INPUTS
  34                 msg - Pointer to a midimessage where the message will be copied.
  35
  36     RESULT
  37                 Returns TRUE if a new message arrived or had arrived, FALSE, if there
  38                 was en error on the midinode.
  39
  40     NOTES
  41
  42     EXAMPLE
  43
  44     BUGS
  45
  46     SEE ALSO
  47                 GetMidi()
  48
  49     INTERNALS
  50
  51     HISTORY
  52
  53         2001-01-12 ksvalast first created
  54
  55 *****************************************************************************/
  56 {
  57     AROS_LIBFUNC_INIT
  58
  59         struct MyMidiNode *mymidinode=(struct MyMidiNode *)midinode;
  60         if(mymidinode->error!=0) return FALSE;
  61
  62         Wait(1L<<midinode->mi_ReceiveSigBit);
  63
  64         GetMidi(midinode,msg);
  65
  66         return TRUE;
  67
  68    AROS_LIBFUNC_EXIT
  69 }
  70