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= nng_stream_dialer_set(3str)
//
// Copyright 2024 Staysail Systems, Inc. <info@staysail.tech>
// Copyright 2018 Capitar IT Group BV <info@capitar.com>
// Copyright 2019 Devolutions <info@devolutions.net>
//
// 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_stream_dialer_set - set option on byte stream dialer
== SYNOPSIS
[source, c]
----
#include <nng/nng.h>
int nng_stream_dialer_set_bool(nng_stream_dialer *d, const char *opt, bool val);
int nng_stream_dialer_set_int(nng_stream_dialer *d, const char *opt, int val);
int nng_stream_dialer_set_ms(nng_stream_dialer *d, const char *opt, nng_duration val);
int nng_stream_dialer_set_size(nng_stream_dialer *d, const char *opt, size_t val);
int nng_stream_dialer_set_string(nng_stream_dialer *d, const char *opt, const char *val);
int nng_stream_dialer_set_uint64(nng_stream_dialer *d, const char *opt, uint64_t val);
int nng_stream_dialer_set_addr(nng_stream_dialer *d, const char *opt, const nng_sockaddr *val);
----
== DESCRIPTION
The `nng_stream_dialer_set` functions are used to configure options for the
xref:nng_stream.5.adoc[byte stream dialer] _d_.
The actual options that may be configured in this way vary, and are
specified by _opt_.
A number of them are documented in
xref:nng_options.5.adoc[nng_options(5)].
Additionally some transport-specific and protocol-specific options are
documented with the transports and protocols themselves.
=== Forms
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_stream_dialer_set_bool()`::
This function is for options which take a Boolean (`bool`).
`nng_stream_dialer_set_int()`::
This function is for options which take an integer (`int`).
`nng_stream_dialer_set_ms()`::
This function is used to configure time durations (such as timeouts) using
the type
xref:nng_duration.5.adoc[`nng_duration`].
The duration is an integer number of milliseconds.
`nng_stream_dialer_set_size()`::
This function is used to configure a size, typically for buffer sizes,
message maximum sizes, and similar options.
`nng_stream_dialer_set_string()`::
This function is used to pass configure a string.
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_stream_dialer_set_uint64()`::
This function is used to configure a 64-bit unsigned value/
This is typically used for identifiers, network numbers,
and similar options.
`nng_stream_dialer_set_addr()`::
This function is used to configure a
xref:nng_sockaddr.5.adoc[socket address].
The value is copied, and thus the caller may discard the supplied
value immediately after this function returns.
== RETURN VALUES
This function returns 0 on success, and non-zero otherwise.
== ERRORS
[horizontal]
`NNG_ECLOSED`:: The dialer is closed.
`NNG_EINVAL`:: Either _data_ or _size_ are invalid.
`NNG_ENOTSUP`:: The option is not supported.
`NNG_EREADONLY`:: The option may not be modified.
== SEE ALSO
[.text-left]
xref:nng_strerror.3.adoc[nng_strerror(3)],
xref:nng_stream_dialer_get.3str.adoc[nng_stream_dialer_get(3str)],
xref:nng_options.5.adoc[nng_options(5)],
xref:nng_ipc_options.5.adoc[nng_ipc_options(5)],
xref:nng_tcp_options.5.adoc[nng_tcp_options(5)],
xref:nng_tls_options.5.adoc[nng_tls_options(5)],
xref:nng_stream_dialer.5.adoc[nng_stream_dialer(5)]
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