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  • Committer: Package Import Robot
  • Author(s): Marc Deslauriers
  • Date: 2012-02-22 22:33:55 UTC
  • mto: (1.2.1) (37.1.1 lucid-security)
  • mto: This revision was merged to the branch mainline in revision 36.
  • Revision ID: package-import@ubuntu.com-20120222223355-ku1tb4r70osci6v2
Tags: upstream-5.1.61
Import upstream version 5.1.61

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storage/innodb_plugin/include/data0data.ic
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}
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/*********************************************************************//**
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Tests if data length and content is equal for two dfields.
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@return TRUE if equal */
 
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Tests if two data fields are equal.
 
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If len==0, tests the data length and content for equality.
 
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If len>0, tests the first len bytes of the content for equality.
 
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@return TRUE if both fields are NULL or if they are equal */
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UNIV_INLINE
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ibool
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dfield_datas_are_binary_equal(
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/*==========================*/
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        const dfield_t* field1, /*!< in: field */
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        const dfield_t* field2) /*!< in: field */
 
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        const dfield_t* field2, /*!< in: field */
 
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        ulint           len)    /*!< in: maximum prefix to compare,
 
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                                or 0 to compare the whole field length */
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{
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        ulint   len;
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        len = field1->len;
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        return(len == field2->len
 
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        ulint   len2 = len;
 
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        if (field1->len == UNIV_SQL_NULL || len == 0 || field1->len < len) {
 
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                len = field1->len;
 
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        }
 
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        if (field2->len == UNIV_SQL_NULL || len2 == 0 || field2->len < len2) {
 
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                len2 = field2->len;
 
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        }
 
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        return(len == len2
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               && (len == UNIV_SQL_NULL
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                   || !memcmp(field1->data, field2->data, len)));
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}