Update pre9
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@@ -32,11 +32,13 @@ should then be retried at a later time.
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If BIO_should_retry() is false then the cause is an error condition.
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BIO_should_read() is true if the cause of the condition is that a BIO
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needs to read data.
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BIO_should_read() is true if the cause of the condition is that the BIO
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has insufficient data to return. Check for readability and/or retry the
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last operation.
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BIO_should_write() is true if the cause of the condition is that a BIO
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needs to read data.
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BIO_should_write() is true if the cause of the condition is that the BIO
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has pending data to write. Check for writability and/or retry the
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last operation.
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BIO_should_io_special() is true if some "special" condition, that is a
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reason other than reading or writing is the cause of the condition.
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