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ruanhaishen
redis
Commits
2e418274
Commit
2e418274
authored
May 11, 2020
by
WuYunlong
Committed by
antirez
May 22, 2020
Browse files
Handle keys with hash tag when computing hash slot using tcl cluster client.
parent
eb2c8b2c
Changes
1
Show whitespace changes
Inline
Side-by-side
tests/support/cluster.tcl
View file @
2e418274
...
...
@@ -286,8 +286,29 @@ proc ::redis_cluster::crc16 {s} {
# Hash a single key returning the slot it belongs to, Implemented hash
# tags as described in the Redis Cluster specification.
proc ::redis_cluster::hash
{
key
}
{
# TODO: Handle hash slots.
expr
{[
::redis_cluster::crc16 $key
]
& 16383
}
set keylen
[
string length $key
]
set s
{}
set e
{}
for
{
set s 0
}
{
$s
< $keylen
}
{
incr s
}
{
if
{[
string index $key $s
]
eq
"
\{
"
}
break
}
if
{[
expr
{
$s
== $keylen
}]}
{
set res
[
expr
{[
crc16 $key
]
& 16383
}]
return $res
}
for
{
set e
[
expr
{
$s
+1
}]}
{
$e
< $keylen
}
{
incr e
}
{
if
{[
string index $key $e
]
==
"
\}
"
}
break
}
if
{
$e
== $keylen || $e ==
[
expr
{
$s
+1
}]}
{
set res
[
expr
{[
crc16 $key
]
& 16383
}]
return $res
}
set key_sub
[
string range $key
[
expr
{
$s
+1
}]
[
expr
{
$e-1
}]]
return
[
expr
{[
crc16 $key_sub
]
& 16383
}]
}
# Return the slot the specified keys hash to.
...
...
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