[#SSL_alloc_buffers]
= SSL_alloc_buffers
:mrdocs:

Allocate (or keep) the read and write record buffers for an SSL connection.

== Synopsis

Declared in `<openssl/ssl.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
SSL_alloc_buffers(xref:SSL.adoc[SSL]* ssl);
----

== Description

Useful with SSL_MODE_RELEASE_BUFFERS to preallocate after SSL_free_buffers(), or with custom CRYPTO_set_mem_functions() allocators. Automatic reallocation on I/O still occurs if buffers were freed.

== Return Value

1 if the buffers are allocated (or were already allocated), or 0 on allocation failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ssl*
| SSL connection whose buffers should be preallocated (always succeeds for QUIC).
|===


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