oxmox
7063e2102e
git-subtree-dir: external/nng git-subtree-split: 29b73962b939a6fbbf6ea8d5d7680bb06d0eeb99
134 lines
4.4 KiB
Text
134 lines
4.4 KiB
Text
= nng_dialer_setopt(3)
|
|
//
|
|
// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech>
|
|
// Copyright 2018 Capitar IT Group BV <info@capitar.com>
|
|
//
|
|
// This document is supplied under the terms of the MIT License, a
|
|
// copy of which should be located in the distribution where this
|
|
// file was obtained (LICENSE.txt). A copy of the license may also be
|
|
// found online at https://opensource.org/licenses/MIT.
|
|
//
|
|
|
|
== NAME
|
|
|
|
nng_dialer_setopt - set dialer option
|
|
|
|
== SYNOPSIS
|
|
|
|
[source, c]
|
|
----
|
|
#include <nng/nng.h>
|
|
|
|
int nng_dialer_setopt(nng_dialer d, const char *opt, const void *val,
|
|
size_t valsz);
|
|
|
|
int nng_dialer_setopt_bool(nng_dialer d, const char *opt, bool bval);
|
|
|
|
int nng_dialer_setopt_int(nng_dialer d, const char *opt, int ival);
|
|
|
|
int nng_dialer_setopt_ms(nng_dialer d, const char *opt, nng_duration dur);
|
|
|
|
int nng_dialer_setopt_ptr(nng_dialer d, const char *opt, void *ptr);
|
|
|
|
int nng_dialer_setopt_size(nng_dialer d, const char *opt, size_t z);
|
|
|
|
int nng_dialer_setopt_string(nng_dialer d, const char *opt, const char *str);
|
|
|
|
int nng_dialer_setopt_uint64(nng_dialer d, const char *opt, uint64_t u64);
|
|
|
|
----
|
|
|
|
== DESCRIPTION
|
|
|
|
IMPORTANT: These functions are deprecated. Please see xref:nng_dialer_set.3.adoc[nng_dialer_set].
|
|
They may not be present if the library was built with `NNG_ELIDE_DEPRECATED`.
|
|
|
|
(((options, dialer)))
|
|
The `nng_dialer_setopt()` functions are used to configure options for
|
|
the xref:nng_dialer.5.adoc[dialer] _d_.
|
|
The actual options that may be configured in this way
|
|
vary, and many are documented in xref:nng_options.5.adoc[nng_options(5)].
|
|
|
|
Additionally some transport-specific options are documented with the
|
|
transports themselves.
|
|
|
|
NOTE: Once a dialer has started, it is generally not possible to change
|
|
its configuration.
|
|
|
|
=== Forms
|
|
|
|
In all of these forms, the option _opt_ is configured on the dialer _d_.
|
|
|
|
The details of the type, size, and semantics of the option will depend
|
|
on the actual option, and will be documented with the option itself.
|
|
|
|
`nng_dialer_setopt()`::
|
|
This function is untyped, and can be used to configure any arbitrary data.
|
|
The _val_ pointer addresses the data to copy, and _valsz_ is the
|
|
size of the objected located at _val_.
|
|
|
|
TIP: It may be easier to use one of the typed forms of this function.
|
|
|
|
`nng_dialer_setopt_bool()`::
|
|
This function is for options which take a Boolean (`bool`).
|
|
The _bval_ is passed to the option.
|
|
|
|
`nng_dialer_setopt_int()`::
|
|
This function is for options which take an integer (`int`).
|
|
The _ival_ is passed to the option.
|
|
|
|
`nng_dialer_setopt_ms()`::
|
|
This function is used to configure time durations (such as timeouts) using
|
|
type xref:nng_duration.5.adoc[`nng_duration`].
|
|
The duration _dur_ is an integer number of milliseconds.
|
|
|
|
`nng_dialer_setopt_ptr()`::
|
|
This function is used to pass a pointer, _ptr_, to structured data.
|
|
The data referenced by _ptr_ is generally managed by other functions.
|
|
For example, TLS configuration objects created with
|
|
(xref:nng_tls_config_alloc.3tls.adoc[`nng_tls_config_alloc()`])
|
|
can be passed this way.
|
|
|
|
NOTE: This form is somewhat special in that the object is generally
|
|
not copied, but instead the *pointer* to the object is copied.
|
|
|
|
`nng_dialer_setopt_size()`::
|
|
This function is used to configure a size, _z_, typically for buffer sizes,
|
|
message maximum sizes, and similar options.
|
|
|
|
`nng_dialer_setopt_string()`::
|
|
This function is used to pass configure a string, _str_.
|
|
Strings passed this way must be legal UTF-8 or ASCII strings, terminated
|
|
with a `NUL` (`\0`) byte.
|
|
(Other constraints may apply as well, see the documentation for each option
|
|
for details.)
|
|
|
|
`nng_dialer_setopt_uint64()`::
|
|
This function is used to configure a 64-bit unsigned value, _u64_.
|
|
This is typically used for options related to identifiers, network numbers,
|
|
and such.
|
|
|
|
== RETURN VALUES
|
|
|
|
These functions return 0 on success, and non-zero otherwise.
|
|
|
|
== ERRORS
|
|
|
|
[horizontal]
|
|
`NNG_EBADTYPE`:: Incorrect type for option.
|
|
`NNG_ECLOSED`:: Parameter _d_ does not refer to an open dialer.
|
|
`NNG_EINVAL`:: The value being passed is invalid.
|
|
`NNG_ENOTSUP`:: The option _opt_ is not supported.
|
|
`NNG_EREADONLY`:: The option _opt_ is read-only.
|
|
`NNG_ESTATE`:: The dialer _d_ is already started.
|
|
|
|
== SEE ALSO
|
|
|
|
[.text-left]
|
|
xref:nng_dialer_create.3.adoc[nng_dialer_create(3)]
|
|
xref:nng_dialer_getopt.3.adoc[nng_dialer_getopt(3)]
|
|
xref:nng_strerror.3.adoc[nng_strerror(3)],
|
|
xref:nng_dialer.5.adoc[nng_dialer(5)],
|
|
xref:nng_duration.5.adoc[nng_duration(5)],
|
|
xref:nng_options.5.adoc[nng_options(5)],
|
|
xref:nng.7.adoc[nng(7)]
|