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52 lines
1.6 KiB
Plaintext
52 lines
1.6 KiB
Plaintext
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=pod
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=head1 NAME
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SSL_CTX_set_read_ahead, SSL_CTX_set_default_read_ahead, SSL_CTX_get_read_ahead,
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SSL_CTX_get_default_read_ahead, SSL_set_read_ahead, SSL_get_read_ahead
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- manage whether to read as many input bytes as possible
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=head1 SYNOPSIS
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#include <openssl/ssl.h>
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int SSL_get_read_ahead(const SSL *s);
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void SSL_set_read_ahead(SSL *s, int yes);
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#define SSL_CTX_get_default_read_ahead(ctx)
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#define SSL_CTX_set_default_read_ahead(ctx,m)
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#define SSL_CTX_get_read_ahead(ctx)
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#define SSL_CTX_set_read_ahead(ctx,m)
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=head1 DESCRIPTION
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SSL_CTX_set_read_ahead() and SSL_set_read_ahead() set whether we should read as
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many input bytes as possible (for non-blocking reads) or not. For example if
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B<x> bytes are currently required by OpenSSL, but B<y> bytes are available from
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the underlying BIO (where B<y> > B<x>), then OpenSSL will read all B<y> bytes
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into its buffer (providing that the buffer is large enough) if reading ahead is
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on, or B<x> bytes otherwise. The parameter B<yes> or B<m> should be 0 to ensure
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reading ahead is off, or non zero otherwise.
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SSL_CTX_set_default_read_ahead is a synonym for SSL_CTX_set_read_ahead, and
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SSL_CTX_get_default_read_ahead is a synonym for SSL_CTX_get_read_ahead.
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SSL_CTX_get_read_ahead() and SSL_get_read_ahead() indicate whether reading
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ahead has been set or not.
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=head1 NOTES
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These functions have no impact when used with DTLS. The return values for
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SSL_CTX_get_read_head() and SSL_get_read_ahead() are undefined for DTLS.
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=head1 RETURN VALUES
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SSL_get_read_ahead and SSL_CTX_get_read_ahead return 0 if reading ahead is off,
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and non zero otherwise.
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=head1 SEE ALSO
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L<ssl(3)|ssl(3)>
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=cut
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