[#BIO_do_connect_retry]
= BIO_do_connect_retry
:mrdocs:

Drive BIO_do_connect() with retries until connected, failed, or `timeout` elapses.

== Synopsis

Declared in `<openssl/bio.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
BIO_do_connect_retry(
    xref:BIO.adoc[BIO]* bio,
    int timeout,
    int nap_milliseconds);
----

== Return Value

1 when connected, <=0 on failure or expiry (see BIO_should_retry()).

== Parameters

[cols="1,4"]
|===
| Name| Description
| *bio*
| Connect BIO to advance.
| *timeout*
| Overall timeout in seconds; 0 waits forever; <0 tries once without sleeping.
| *nap_milliseconds*
| Sleep between non‐blocking retries (or <=0 for a default nap).
|===


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