| svc_create()
|
| |
The
svc_create()
function
creates server handles for all the transports
belonging to the class
nettype.
The
nettype
argument
defines a class of transports which can be used
for a particular application.
The transports are tried in left to right order in
NETPATH
variable or in top to bottom order in the netconfig database.
If
nettype
is
NULL,
it defaults to
"netpath".
The
svc_create()
function
registers itself with the rpcbind
service (see
rpcbind(8)).
The
dispatch
function
is called when there is a remote procedure call for the given
prognum
and
versnum;
this requires calling
svc_run()
(see
svc_run()
in
rpc_svc_reg(3)).
If
svc_create()
succeeds, it returns the number of server
handles it created,
otherwise it returns 0 and an error message is logged.
|
| svc_destroy()
|
| |
A function macro that destroys the RPC
service handle
xprt.
Destruction usually involves deallocation
of private data structures,
including
xprt
itself.
Use of
xprt
is undefined after calling this routine.
|
| svc_dg_create()
|
| |
This routine creates a connectionless RPC
service handle, and returns a pointer to it.
This routine returns
NULL
if it fails, and an error message is logged.
The
sendsz
and
recvsz
arguments
are arguments used to specify the size of the buffers.
If they are 0, suitable defaults are chosen.
The file descriptor
fildes
should be open and bound.
The server is not registered with
rpcbind(8).
Warning:
since connectionless-based RPC
messages can only hold limited amount of encoded data,
this transport cannot be used for procedures
that take large arguments or return huge results.
|
| svc_fd_create()
|
| |
This routine creates a service on top of an open and bound file descriptor,
and returns the handle to it.
Typically, this descriptor is a connected file descriptor for a
connection-oriented transport.
The
sendsz
and
recvsz
arguments
indicate sizes for the send and receive buffers.
If they are 0, reasonable defaults are chosen.
This routine returns
NULL
if it fails, and an error message is logged.
|
| svc_raw_create()
|
| |
This routine creates an RPC
service handle and returns a pointer to it.
The transport is really a buffer within the process's
address space, so the corresponding RPC
client should live in the same address space;
(see
clnt_raw_create()
in
rpc_clnt_create(3)).
This routine allows simulation of RPC and acquisition of
RPC overheads (such as round trip times),
without any kernel and networking interference.
This routine returns
NULL
if it fails, and an error message is logged.
Note:
svc_run()
should not be called when the raw interface is being used.
|
| svc_tli_create()
|
| |
This routine creates an RPC
server handle, and returns a pointer to it.
The
fildes
argument
is the file descriptor on which the service is listening.
If
fildes
is
RPC_ANYFD,
it opens a file descriptor on the transport specified by
netconf.
If the file descriptor is unbound and
bindaddr
is not
NULL,
fildes
is bound to the address specified by
bindaddr,
otherwise
fildes
is bound to a default address chosen by the transport.
Note: the
t_bind
structure comes from the TLI/XTI SysV interface, which
NetBSD
does not use.
The structure is defined in
<rpc/types.h>
for compatibility as:
struct t_bind {
struct netbuf addr; /* network address, see rpc(3) */
unsigned int qlen; /* queue length (for listen(2)) */
};
In the case where the default address is chosen,
the number of outstanding connect requests is set to 8
for connection-oriented transports.
The user may specify the size of the send and receive buffers
with the arguments
sendsz
and
recvsz;
values of 0 choose suitable defaults.
This routine returns
NULL
if it fails,
and an error message is logged.
The server is not registered with the
rpcbind(8)
service.
|
| svc_tp_create()
|
| |
The
svc_tp_create()
function
creates a server handle for the network
specified by
netconf,
and registers itself with the rpcbind service.
The
dispatch
function
is called when there is a remote procedure call
for the given
prognum
and
versnum;
this requires calling
svc_run().
The
svc_tp_create()
function
returns the service handle if it succeeds,
otherwise a
NULL
is returned and an error message is logged.
|
| svc_vc_create()
|
| |
This routine creates a connection-oriented RPC
service and returns a pointer to it.
This routine returns
NULL
if it fails, and an error message is logged.
The users may specify the size of the send and receive buffers
with the arguments
sendsz
and
recvsz;
values of 0 choose suitable defaults.
The file descriptor
fildes
should be open and bound.
The server is not registered with the
rpcbind(8)
service.
|
|
