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SETMWID(3PVM)			PVM Version 3.4			 SETMWID(3PVM)

NAME
       pvm_getmwid, pvm_setmwid	- Get or set wait ID of	a message.
       [In Version 3.4:	Relaced	by pvm_getminfo	and pvm_setminfo]

SYNOPSIS
       C    int	info = pvm_getmwid( int	bufid )
	    int	info = pvm_setmwid( int	bufid, int waitid )

       Fortran	 Not Available

PARAMETERS
       bufid   Message buffer identifier.

       waitid  Wait identifier number.

DESCRIPTION
       A  wait	identifier is part of a	message	(like the source, destination,
       tag and body).  It is used to match a reply to  the  corresponding  re-
       quest.

       The default wait	ID for a message is zero (none).

       pvm_getmwid  returns the	wait ID	associated with	a message buffer, or a
       negative	error code.

       pvm_setmwid assigns a new wait ID to  a	message	 buffer.   It  returns
       PvmOk unless an error occurs.

EXAMPLES
	    int	src, tag;

	    pvm_recv(-1, -1);
	    /* ... process, compose reply message */
	    pvm_setmwid(pvm_getsbuf(), pvm_getmwid(pvm_getrbuf()));
	    pvm_bufinfo(pvm_getrbuf(), (int *)0, &tag, &src);
	    pvm_send(src, tag);

ERRORS
       The  following  error  conditions  can  be  returned  by	pvm_getmwid or
       pvm_setmwid:

       PvmBadParam
	      Invalid value for	bufid argument.

       PvmNoSuchBuf
	      Message buffer bufid doesn't exist.

SEE ALSO
       pvm_bufinfo(3PVM)

				 18 May, 1994			 SETMWID(3PVM)

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