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VMS Help DCE, DCE_RPC, Application Routines, rpc_binding_reset *Conan The Librarian |
NAME
rpc_binding_reset - Resets a server binding handle
Used by client or management applications.
SYNOPSIS
#include <dce/rpc.h>
void rpc_binding_reset( rpc_binding_handle_t binding,
unsigned32 *status );
PARAMETERS
Input
binding
Specifies the server binding handle to reset.
Output
status
Returns the status code from this routine. This status code
indicates whether the routine completed successfully or, if
not, why not. The possible status codes and their meanings
are as follows:
rpc_s_ok Success.
rpc_s_invalid_binding
Invalid binding handle.
rpc_s_wrong_kind_of_binding
Wrong kind of binding for operation.
DESCRIPTION
The rpc_binding_reset() routine disassociates a server instance from
the server binding handle specified in the binding parameter. This
routine removes the endpoint portion of the server address in the
binding handle as well as any other server instance information in the
binding handle. The host portion of the server address remains
unchanged. The result is a partially bound server binding handle.
This binding handle can rebind to another server instance on the
previous host when it is later used to make a remote procedure call.
The rpc_intro reference page contains an explanation of partially and
fully bound binding handles.
This routine does not affect any authentication information for the
binding parameter.
Suppose that a client can be serviced by any compatible server
instance on the host specified in the binding handle. Then, the
client can call the rpc_binding_reset() routine before making a
remote procedure call using the binding handle specified in binding.
When the client makes the next remote procedure call using the reset
server binding handle in binding, the client's RPC runtime uses a
well-known endpoint from the client's interface specification, if any.
Otherwise, the client's RPC runtime automatically communicates with
the DCE Host Daemon (dced) on the specified remote host, to obtain the
endpoint of a compatible server from the local endpoint map. If a
compatible server is located, the RPC runtime updates binding with a
new endpoint.
However, if a compatible server is not located, the client's remote
procedure call fails. If the failed call uses a connection protocol
(ncacn), it receives the rpc_s_endpoint_not_found status code. If
the failed call uses a datagram protocol (ncadg), it receives the
rpc_s_comm_failure status code.
If a server application wants to be available to clients making a
remote procedure call on a reset binding handle, it registers all
binding handles by calling rpc_ep_register() or
rpc_ep_register_no_replace(). If, however, the IDL-generated file
contains endpoint address information, then the application does not
have to call either of these two routines.
RETURN VALUES
No value is returned.
RELATED INFORMATION
Functions: rpc_ep_register
rpc_ep_register_no_replace
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