April 1, 1981 r- I Function I Codel comments I I AUTHORIZE I Control Initializes VMCF for a given virtual machine. I I I UNAUTHORIZE SEND SEND/RECV SENDX RECEIVE CANCEL REPLY QUIESCE RESUME , IDENTIFY I I , REJECT I , .. , Once AUTHORIZE is executed, the virtual I , machine can execute other VMCF subfunctions I , and receive messages or requests from other I I I ,Control I , Data
Data
Data
DataControl Data Control Control Control Control users. I Terminates VMCF activity. I I Directs a message or block of data to another
virtual machine.
Directs a message or block of data to another
virtual machine, and requests notification
of a reply.
Directs data to another virtual machine on a
faster but more restrictive protocol than
theSEND subfunction.
fAllows you to accept selective messages or
data sent via aSEND or SEND/RECV subfunction. Cancels a message or data transfer directed
to another user but not yet accepted by that
user.
Allows you to direct data back to the
originator of aSEND/RECV subfunction,
simUlating full duplex communication.
Temporarily rejects furtherSEND, SENDX, SEND/RECV, or IDENTIFY requests from other
users.
Resets the status set by theQUIESCE subfunction and allows execution of
subsequent requests from other users.
Notifies another user that your virtual
machine is available forVMCF communication.
Allows you to reject specificSEND or SEND/RECV requests pending for your virtual
machine.flThe word "Data" in this column indicates a data transfer subfunction
, whereas the word"Control" indicates a VMCF control subfunction. L- Figure 14. Virtual Machine Communication Facility (VMCF) Subfunctions 144 IBM VM/370 System Programmer's Guide
Data
Data
Data
virtual machine.
Directs a message or block of data to another
virtual machine, and requests notification
of a reply.
Directs data to another virtual machine on a
faster but more restrictive protocol than
the
fAllows you to accept selective messages or
data sent via a
to another user but not yet accepted by that
user.
Allows you to direct data back to the
originator of a
simUlating full duplex communication.
Temporarily rejects further
users.
Resets the status set by the
subsequent requests from other users.
Notifies another user that your virtual
machine is available for
Allows you to reject specific
machine.
, whereas the word