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- /*
- (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
- }
-
-