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Amiga Format CD 7
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Amiga Format AFCD07 (Dec 1996, Issue 91).iso
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aros
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exec
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getmsg.c
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C/C++ Source or Header
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1996-09-12
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2KB
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75 lines
/*
(C) 1995-96 AROS - The Amiga Replacement OS
$Id: getmsg.c,v 1.4 1996/08/13 13:56:03 digulla Exp $
$Log: getmsg.c,v $
Revision 1.4 1996/08/13 13:56:03 digulla
Replaced __AROS_LA by __AROS_LHA
Replaced some __AROS_LH*I by __AROS_LH*
Sorted and added includes
Revision 1.3 1996/08/01 17:41:12 digulla
Added standard header for all files
Desc:
Lang: english
*/
#include <exec/execbase.h>
#include <exec/ports.h>
#include <aros/libcall.h>
/*****************************************************************************
NAME */
#include <clib/exec_protos.h>
__AROS_LH1(struct Message *, GetMsg,
/* SYNOPSIS */
__AROS_LHA(struct MsgPort *, port, A0),
/* LOCATION */
struct ExecBase *, SysBase, 62, Exec)
/* FUNCTION
Get a message from a given messageport. This function doesn't wait
and returns NULL if the messageport is empty. Therefore it's
generally a good idea to WaitPort() or Wait() on the given port first.
INPUTS
port - Pointer to messageport
RESULT
Pointer to message removed from the port.
NOTES
EXAMPLE
BUGS
SEE ALSO
WaitPort(), PutMsg()
INTERNALS
HISTORY
******************************************************************************/
{
__AROS_FUNC_INIT
struct Message *msg;
/* Protect the message list. */
Disable();
/* Get first node. */
msg=(struct Message *)RemHead(&port->mp_MsgList);
/* All done. */
Enable();
return msg;
__AROS_FUNC_EXIT
}