OSF DCE Application Development Guide--Core Components

OSF DCE Application Development Guide—Core Components
11.1.3 The RPC Runtime
In addition to one or more RPC stubs, every RPC server and RPC client is linked with a
copy of the RPC runtime. Runtime operations perform tasks such as controlling
communications between clients and servers and finding servers for clients on request.
An interface’s client and server stubs exchange arguments through their local RPC
runtimes. The client runtime transmits remote procedure calls to the server. The server
runtime receives the calls and dispatches each call to the appropriate server stub. The
server runtime sends the call results to the client runtime. The DCE RPC runtime
supports the RPC API used by RPC application code to call runtime routines.
Server application code must also contain server initialization code that calls RPC
runtime routines when the server is starting up and shutting down. Client application
code can also call RPC runtime routines. Server and client application code can also
contain calls to RPC stub-support routines. Stub-support routines allow applications to
manage programming tasks such as allocating and freeing memory.
11.1.4 RPC Application Components That Work Together
Figure 11-3 shows the roles of application code, RPC stubs, and RPC runtimes during a
remote procedure call.
Figure 11-3. Interrelationships During a Remote Procedure Call
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