/usr/man/cat.3/SSL_CTX_set_read_ahead.3(/usr/man/cat.3/SSL_CTX_set_read_ahead.3)

SSL_CTX_set_read_ahead(3)    OpenSSL    SSL_CTX_set_read_ahead(3)

NAME

     SSL_CTX_set_read_ahead, SSL_CTX_set_default_read_ahead,
     SSL_CTX_get_read_ahead, SSL_CTX_get_default_read_ahead,
     SSL_set_read_ahead, SSL_get_read_ahead - manage whether to
     read as many input bytes as possible

SYNOPSIS

      #include <openssl/ssl.h>

      int SSL_get_read_ahead(const SSL *s);
      void SSL_set_read_ahead(SSL *s, int yes);

      #define SSL_CTX_get_default_read_ahead(ctx)
      #define SSL_CTX_set_default_read_ahead(ctx,m)
      #define SSL_CTX_get_read_ahead(ctx)
      #define SSL_CTX_set_read_ahead(ctx,m)

DESCRIPTION

     SSL_CTX_set_read_ahead() and SSL_set_read_ahead() set
     whether we should read as many input bytes as possible (for
     non-blocking reads) or not. For example if x bytes are
     currently required by OpenSSL, but y bytes are available
     from the underlying BIO (where y > x), then OpenSSL will
     read all y bytes into its buffer (providing that the buffer
     is large enough) if reading ahead is on, or x bytes
     otherwise. The parameter yes or m should be 0 to ensure
     reading ahead is off, or non zero otherwise.

     SSL_CTX_set_default_read_ahead is a synonym for
     SSL_CTX_set_read_ahead, and SSL_CTX_get_default_read_ahead
     is a synonym for SSL_CTX_get_read_ahead.

     SSL_CTX_get_read_ahead() and SSL_get_read_ahead() indicate
     whether reading ahead has been set or not.

NOTES

     These functions have no impact when used with DTLS. The
     return values for SSL_CTX_get_read_head() and
     SSL_get_read_ahead() are undefined for DTLS.

RETURN VALUES

     SSL_get_read_ahead and SSL_CTX_get_read_ahead return 0 if
     reading ahead is off, and non zero otherwise.

SEE ALSO

     ssl(3)

1.0.2t               Last change: 2019-09-10                    1

See also SSL_CTX_get_default_read_ahead(3)
See also SSL_CTX_get_read_ahead(3)
See also SSL_CTX_set_default_read_ahead(3)
See also SSL_get_read_ahead(3)
See also SSL_set_read_ahead(3)