chore: deprecate RecordsPopper and serialize channel records during push
Records channel is redundant for DFS/replication because we have single producer/consumer
scenario and both running on the same thread. Unfortunately we need it for RDB snapshotting.
For non-rdb cases we could just pass a io sink to the snapshot producer,
so that it would use it directly instead of StringFile inside FlushChannelRecord.
This would reduce memory usage, eliminate yet another memory copy and generally would make everything simpler.
For that to work, we must serialize the order of FlushChannelRecord, and that's implemented by
this PR. Also fixes#3658.
Signed-off-by: Roman Gershman <roman@dragonflydb.io>
* fix: crash when passing empty arguments
Fix the case where we pass an empty argument, which then is parsed as an
empty string view with null pointer. The null pointer is not handled correctly
by our low level c code, hence switch to using ""sv for that.
* chore: add more list asserts + improve test_hypothesis
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Signed-off-by: Roman Gershman <roman@dragonflydb.io>
1. The offset value can be negative, in that case we should return an empty array.
2. Fix edge cases of inf*0 and -inf + inf, so they will result in 0 and non NaN (similarily to Valkey).
Signed-off-by: Roman Gershman <roman@dragonflydb.io>
For legacy mode:
1. For mutate commands, an empty result should throw an error
2. For read commands, it returns nil if path was not found, but if it was matched
but only with a wrong types, it will throw an error.
For non-legacy mode, objlen should throw an error for non existing key.
Simplified JsonCallbackResult a bit and made sure more fakeredis tests are passing.
Signed-off-by: Roman Gershman <roman@dragonflydb.io>
* fix: xreadgroup replies as a map for RESP3
Moreover, it returns data for all the strings, irrespective whether they have results or not
(unlike with XREAD)
Signed-off-by: Roman Gershman <roman@dragonflydb.io>
* fix: properly handle xpending with 0 results
Also reject ENTRIESREAD instead of silently accepting it.
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Signed-off-by: Roman Gershman <roman@dragonflydb.io>
* fix: JSON.STRAPPEND
JSON.STRAPPEND was completely broken.
First, it accepts exactly 3 arguments, i.e. a single value to append.
Secondly, the value must be a json string, not the regular string. Meaning it must be in double quotes.
So, before we parsed: `JSON.STRAPPEND key $.field bar` and now we parse:
`JSON.STRAPPEND key $.field "bar"`
In addition fixed the behavior of JSON.STRLEN to return "no such key" error in case the
json key does not exist and path is specified.
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Signed-off-by: Roman Gershman <roman@dragonflydb.io>
* chore: improve compatibility of set and ping commands
smismember should return an array of longs and not array of strings.
ping in subscribe mode returns an array for resp2.
Also, fix double rounding for legacy float mode.
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Signed-off-by: Roman Gershman <roman@dragonflydb.io>
1. Fix corner cases around non existing keys
2. Fix matching logic for * glob, as well as '' glob.
3. Improve SORT option parsing.
Signed-off-by: Roman Gershman <roman@dragonflydb.io>
