NAME
pvm_getmwid, pvm_setmwid - Get or set wait ID of a message.
SYNOPSIS
C int info = pvm_getmwid( int bufid ) int info = pvm_setmwid( int bufid, int waitid )
Fortran Not Available
bufid Message buffer identifier.
waitid Wait identifier number.
DISCUSSION
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 request.
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: