Lazily initialise the compression buffer
With read pipelining we use multiple SSL3_RECORD structures for reading. There are SSL_MAX_PIPELINES (32) of them defined (typically not all of these would be used). Each one has a 16k compression buffer allocated! This results in a significant amount of memory being consumed which, most of the time, is not needed. This change swaps the allocation of the compression buffer to be lazy so that it is only done immediately before it is actually used. Reviewed-by: Tim Hudson <tjh@openssl.org>
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@@ -251,8 +251,6 @@ int ssl3_change_cipher_state(SSL *s, int which)
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SSL_R_COMPRESSION_LIBRARY_ERROR);
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goto err2;
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}
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if (!RECORD_LAYER_setup_comp_buffer(&s->rlayer))
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goto err;
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}
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#endif
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RECORD_LAYER_reset_read_sequence(&s->rlayer);
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