fluencelabs/redis
1
0
Fork 0
mirror of https://github.com/fluencelabs/redis synced 2025-03-18 16:40:50 +00:00
Code Issues Projects Releases Wiki Activity

Compare integers in ziplist regardless of encoding

Browse Source 
Because of the introduction of new integer encoding types for ziplists
in the 2.6 tree, the same integer value may have a different encoding in
different versions of the ziplist implementation. This means that the
encoding can NOT be used as a fast path in comparing integers.
This commit is contained in:
Pieter Noordhuis 2012-05-04 17:26:24 -07:00 committed by antirez
parent abf54ee73c
commit bf21941686
1 changed files with 4 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/ziplist.c
View File

@ -773,12 +773,11 @@ unsigned int ziplistCompare(unsigned char *p, unsigned char *sstr, unsigned int
return 0;
}
} else {
/* Try to compare encoded values */
/* Try to compare encoded values. Don't compare encoding because
* different implementations may encoded integers differently. */
if (zipTryEncoding(sstr,slen,&sval,&sencoding)) {
if (entry.encoding == sencoding) {
zval = zipLoadInteger(p+entry.headersize,entry.encoding);
return zval == sval;
}
zval = zipLoadInteger(p+entry.headersize,entry.encoding);
return zval == sval;
}
}
return 0;