- 17 Oct, 2021 1 commit
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Oran Agra authored
the RedisModule_ReplyWithPush prototype was merged by mistake (no such API yet)
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- 14 Oct, 2021 1 commit
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Shaya Potter authored
Verbatim Stings in RESP3 have a type/extension. The existing redismoule reply function, hard coded it to "txt".
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- 06 Oct, 2021 1 commit
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Andy Pan authored
Implement createPipe() to combine creating pipe and setting flags, also reduce system calls by prioritizing pipe2() over pipe(). Without createPipe(), we have to call pipe() to create a pipe and then call some functions (like anetCloexec() and anetNonBlock()) of anet.c to set flags respectively, which leads to some extra system calls, now we can leverage pipe2() to combine them and make the process of creating pipe more convergent in createPipe(). Co-authored-by:
Viktor Söderqvist <viktor.soderqvist@est.tech> Co-authored-by:
Oran Agra <oran@redislabs.com>
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- 04 Oct, 2021 1 commit
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Oran Agra authored
- fix possible heap corruption in ziplist and listpack resulting by trying to allocate more than the maximum size of 4GB. - prevent ziplist (hash and zset) from reaching size of above 1GB, will be converted to HT encoding, that's not a useful size. - prevent listpack (stream) from reaching size of above 1GB. - XADD will start a new listpack if the new record may cause the previous listpack to grow over 1GB. - XADD will respond with an error if a single stream record is over 1GB - List type (ziplist in quicklist) was truncating strings that were over 4GB, now it'll respond with an error. Co-authored-by:
sundb <sundbcn@gmail.com>
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- 30 Sep, 2021 1 commit
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Hanna Fadida authored
adding an advanced api to enable loading data that was sereialized with a specific encoding version
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- 23 Sep, 2021 2 commits
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Yossi Gottlieb authored
This commit makes it possible to explicitly trim the allocation of a RedisModuleString. Currently, Redis automatically trims strings that have been retained by a module command when it returns. However, this is not thread safe and may result with corruption in threaded modules. Supporting explicit trimming offers a backwards compatible workaround to this problem.
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YaacovHazan authored
This commit introduced a new flag to the RM_Call: 'C' - Check if the command can be executed according to the ACLs associated with it. Also, three new API's added to check if a command, key, or channel can be executed or accessed by a user, according to the ACLs associated with it. - RM_ACLCheckCommandPerm - RM_ACLCheckKeyPerm - RM_ACLCheckChannelPerm The user for these API's is a RedisModuleUser object, that for a Module user returned by the RM_CreateModuleUser API, or for a general ACL user can be retrieved by these two new API's: - RM_GetCurrentUserName - Retrieve the user name of the client connection behind the current context. - RM_GetModuleUserFromUserName - Get a RedisModuleUser from a user name As a result of getting a RedisModuleUser from name, it can now also access the general ACL users (not just ones created by the module). This mean the already existing API RM_SetModuleUserACL(), can be used to change the ACL rules for such users.
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- 15 Sep, 2021 2 commits
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guybe7 authored
The `cmd` argument was completely unused, and all the code that bothered to pass it was unnecessary. This is a prepartion for a future commit that treats subcommands as commands
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guybe7 authored
Fix #7297 The problem: Today, there is no way for a client library or app to know the key name indexes for commands such as ZUNIONSTORE/EVAL and others with "numkeys", since COMMAND INFO returns no useful info for them. For cluster-aware redis clients, this requires to 'patch' the client library code specifically for each of these commands or to resolve each execution of these commands with COMMAND GETKEYS. The solution: Introducing key specs other than the legacy "range" (first,last,step) The 8th element of the command info array, if exists, holds an array of key specs. The array may be empty, which indicates the command doesn't take any key arguments or may contain one or more key-specs, each one may leads to the discovery of 0 or more key arguments. A client library that doesn't support this key-spec feature will keep using the first,last,step and movablekeys flag which will obviously remain unchanged. A client that supports this key-specs feature needs only to look at the key-specs array. If it finds an unrecognized spec, it must resort to using COMMAND GETKEYS if it wishes to get all key name arguments, but if all it needs is one key in order to know which cluster node to use, then maybe another spec (if the command has several) can supply that, and there's no need to use GETKEYS. Each spec is an array of arguments, first one is the spec name, the second is an array of flags, and the third is an array containing details about the spec (specific meaning for each spec type) The initial flags we support are "read" and "write" indicating if the keys that this key-spec finds are used for read or for write. clients should ignore any unfamiliar flags. In order to easily find the positions of keys in a given array of args we introduce keys specs. There are two logical steps of key specs: 1. `start_search`: Given an array of args, indicate where we should start searching for keys 2. `find_keys`: Given the output of start_search and an array of args, indicate all possible indices of keys. ### start_search step specs - `index`: specify an argument index explicitly - `index`: 0 based index (1 means the first command argument) - `keyword`: specify a string to match in `argv`. We should start searching for keys just after the keyword appears. - `keyword`: the string to search for - `start_search`: an index from which to start the keyword search (can be negative, which means to search from the end) Examples: - `SET` has start_search of type `index` with value `1` - `XREAD` has start_search of type `keyword` with value `[“STREAMS”,1]` - `MIGRATE` has start_search of type `keyword` with value `[“KEYS”,-2]` ### find_keys step specs - `range`: specify `[count, step, limit]`. - `lastkey`: index of the last key. relative to the index returned from begin_search. -1 indicating till the last argument, -2 one before the last - `step`: how many args should we skip after finding a key, in order to find the next one - `limit`: if count is -1, we use limit to stop the search by a factor. 0 and 1 mean no limit. 2 means ½ of the remaining args, 3 means ⅓, and so on. - “keynum”: specify `[keynum_index, first_key_index, step]`. - `keynum_index`: is relative to the return of the `start_search` spec. - `first_key_index`: is relative to `keynum_index`. - `step`: how many args should we skip after finding a key, in order to find the next one Examples: - `SET` has `range` of `[0,1,0]` - `MSET` has `range` of `[-1,2,0]` - `XREAD` has `range` of `[-1,1,2]` - `ZUNION` has `start_search` of type `index` with value `1` and `find_keys` of type `keynum` with value `[0,1,1]` - `AI.DAGRUN` has `start_search` of type `keyword` with value `[“LOAD“,1]` and `find_keys` of type `keynum` with value `[0,1,1]` (see https://oss.redislabs.com/redisai/master/commands/#aidagrun) Note: this solution is not perfect as the module writers can come up with anything, but at least we will be able to find the key args of the vast majority of commands. If one of the above specs can’t describe the key positions, the module writer can always fall back to the `getkeys-api` option. Some keys cannot be found easily (`KEYS` in `MIGRATE`: Imagine the argument for `AUTH` is the string “KEYS” - we will start searching in the wrong index). The guarantee is that the specs may be incomplete (`incomplete` will be specified in the spec to denote that) but we never report false information (assuming the command syntax is correct). For `MIGRATE` we start searching from the end - `startfrom=-1` - and if one of the keys is actually called "keys" we will report only a subset of all keys - hence the `incomplete` flag. Some `incomplete` specs can be completely empty (i.e. UNKNOWN begin_search) which should tell the client that COMMAND GETKEYS (or any other way to get the keys) must be used (Example: For `SORT` there is no way to describe the STORE keyword spec, as the word "store" can appear anywhere in the command). We will expose these key specs in the `COMMAND` command so that clients can learn, on startup, where the keys are for all commands instead of holding hardcoded tables or use `COMMAND GETKEYS` in runtime. Comments: 1. Redis doesn't internally use the new specs, they are only used for COMMAND output. 2. In order to support the current COMMAND INFO format (reply array indices 4, 5, 6) we created a synthetic range, called legacy_range, that, if possible, is built according to the new specs. 3. Redis currently uses only getkeys_proc or the legacy_range to get the keys indices (in COMMAND GETKEYS for example). "incomplete" specs: the command we have issues with are MIGRATE, STRALGO, and SORT for MIGRATE, because the token KEYS, if exists, must be the last token, we can search in reverse. it one of the keys is actually the string "keys" will return just a subset of the keys (hence, it's "incomplete") for SORT and STRALGO we can use this heuristic (the keys can be anywhere in the command) and therefore we added a key spec that is both "incomplete" and of "unknown type" if a client encounters an "incomplete" spec it means that it must find a different way (either COMMAND GETKEYS or have its own parser) to retrieve the keys. please note that all commands, apart from the three mentioned above, have "complete" key specs
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- 14 Sep, 2021 1 commit
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Viktor Söderqvist authored
List functions operating on elements by index: * RM_ListGet * RM_ListSet * RM_ListInsert * RM_ListDelete Iteration is done using a simple for loop over indices. The index based functions use an internal iterator as an optimization. This is explained in the docs: ``` * Many of the list functions access elements by index. Since a list is in * essence a doubly-linked list, accessing elements by index is generally an * O(N) operation. However, if elements are accessed sequentially or with * indices close together, the functions are optimized to seek the index from * the previous index, rather than seeking from the ends of the list. * * This enables iteration to be done efficiently using a simple for loop: * * long n = RM_ValueLength(key); * for (long i = 0; i < n; i++) { * RedisModuleString *elem = RedisModule_ListGet(key, i); * // Do stuff... * } ```
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- 09 Sep, 2021 2 commits
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sundb authored
Part two of implementing #8702 (zset), after #8887. ## Description of the feature Replaced all uses of ziplist with listpack in t_zset, and optimized some of the code to optimize performance. ## Rdb format changes New `RDB_TYPE_ZSET_LISTPACK` rdb type. ## Rdb loading improvements: 1) Pre-expansion of dict for validation of duplicate data for listpack and ziplist. 2) Simplifying the release of empty key objects when RDB loading. 3) Unify ziplist and listpack data verify methods for zset and hash, and move code to rdb.c. ## Interface changes 1) New `zset-max-listpack-entries` config is an alias for `zset-max-ziplist-entries` (same with `zset-max-listpack-value`). 2) OBJECT ENCODING will return listpack instead of ziplist. ## Listpack improvements: 1) Add `lpDeleteRange` and `lpDeleteRangeWithEntry` functions to delete a range of entries from listpack. 2) Improve the performance of `lpCompare`, converting from string to integer is faster than converting from integer to string. 3) Replace `snprintf` with `ll2string` to improve performance in converting numbers to strings in `lpGet()`. ## Zset improvements: 1) Improve the performance of `zzlFind` method, use `lpFind` instead of `lpCompare` in a loop. 2) Use `lpDeleteRangeWithEntry` instead of `lpDelete` twice to delete a element of zset. ## Tests 1) Add some unittests for `lpDeleteRange` and `lpDeleteRangeWithEntry` function. 2) Add zset RDB loading test. 3) Add benchmark test for `lpCompare` and `ziplsitCompare`. 4) Add empty listpack zset corrupt dump test.
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Binbin authored
We want to add COUNT option for BLPOP. But we can't do it without breaking compatibility due to the command arguments syntax. So this commit introduce two new commands. Syntax for the new LMPOP command: `LMPOP numkeys [<key> ...] LEFT|RIGHT [COUNT count]` Syntax for the new BLMPOP command: `BLMPOP timeout numkeys [<key> ...] LEFT|RIGHT [COUNT count]` Some background: - LPOP takes one key, and can return multiple elements. - BLPOP takes multiple keys, but returns one element from just one key. - LMPOP can take multiple keys and return multiple elements from just one key. Note that LMPOP/BLMPOP can take multiple keys, it eventually operates on just one key. And it will propagate as LPOP or RPOP with the COUNT option. As a new command, it still return NIL if we can't pop any elements. For the normal response is nested arrays in RESP2 and RESP3, like: ``` LMPOP/BLMPOP 1) keyname 2) 1) element1 2) element2 ``` I.e. unlike BLPOP that returns a key name and one element so it uses a flat array, and LPOP that returns multiple elements with no key name, and again uses a flat array, this one has to return a nested array, and it does for for both RESP2 and RESP3 (like SCAN does) Some discuss can see: #766 #8824
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- 10 Aug, 2021 1 commit
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sundb authored
Part one of implementing #8702 (taking hashes first before other types) ## Description of the feature 1. Change ziplist encoded hash objects to listpack encoding. 2. Convert existing ziplists on RDB loading time. an O(n) operation. ## Rdb format changes 1. Add RDB_TYPE_HASH_LISTPACK rdb type. 2. Bump RDB_VERSION to 10 ## Interface changes 1. New `hash-max-listpack-entries` config is an alias for `hash-max-ziplist-entries` (same with `hash-max-listpack-value`) 2. OBJECT ENCODING will return `listpack` instead of `ziplist` ## Listpack improvements: 1. Support direct insert, replace integer element (rather than convert back and forth from string) 3. Add more listpack capabilities to match the ziplist ones (like `lpFind`, `lpRandomPairs` and such) 4. Optimize element length fetching, avoid multiple calculations 5. Use inline to avoid function call overhead. ## Tests 1. Add a new test to the RDB load time conversion 2. Adding the listpack unit tests. (based on the one in ziplist.c) 3. Add a few "corrupt payload: fuzzer findings" tests, and slightly modify existing ones. Co-authored-by:
Oran Agra <oran@redislabs.com>
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- 05 Aug, 2021 1 commit
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yoav-steinberg authored
Reduce dict struct memory overhead on 64bit dict size goes down from jemalloc's 96 byte bin to its 56 byte bin. summary of changes: - Remove `privdata` from callbacks and dict creation. (this affects many files, see "Interface change" below). - Meld `dictht` struct into the `dict` struct to eliminate struct padding. (this affects just dict.c and defrag.c) - Eliminate the `sizemask` field, can be calculated from size when needed. - Convert the `size` field into `size_exp` (exponent), utilizes one byte instead of 8. Interface change: pass dict pointer to dict type call back functions. This is instead of passing the removed privdata field. In the future if we'd like to have private data in the callbacks we can extract it from the dict type. We can extend dictType to include a custom dict struct allocator and use it to allocate more data at the end of the dict struct. This data can then be used to store private data later acccessed by the callbacks.
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- 04 Aug, 2021 1 commit
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Meir Shpilraien (Spielrein) authored
## Current state 1. Lua has its own parser that handles parsing `reds.call` replies and translates them to Lua objects that can be used by the user Lua code. The parser partially handles resp3 (missing big number, verbatim, attribute, ...) 2. Modules have their own parser that handles parsing `RM_Call` replies and translates them to RedisModuleCallReply objects. The parser does not support resp3. In addition, in the future, we want to add Redis Function (#8693) that will probably support more languages. At some point maintaining so many parsers will stop scaling (bug fixes and protocol changes will need to be applied on all of them). We will probably end up with different parsers that support different parts of the resp protocol (like we already have today with Lua and modules) ## PR Changes This PR attempt to unified the reply parsing of Lua and modules (and in the future Redis Function) by introducing a new parser unit (`resp_parser.c`). The new parser handles parsing the reply and calls different callbacks to allow the users (another unit that uses the parser, i.e, Lua, modules, or Redis Function) to analyze the reply. ### Lua API Additions The code that handles reply parsing on `scripting.c` was removed. Instead, it uses the resp_parser to parse and create a Lua object out of the reply. As mentioned above the Lua parser did not handle parsing big numbers, verbatim, and attribute. The new parser can handle those and so Lua also gets it for free. Those are translated to Lua objects in the following way: 1. Big Number - Lua table `{'big_number':'<str representation for big number>'}` 2. Verbatim - Lua table `{'verbatim_string':{'format':'<verbatim format>', 'string':'<verbatim string value>'}}` 3. Attribute - currently ignored and not expose to the Lua parser, another issue will be open to decide how to expose it. Tests were added to check resp3 reply parsing on Lua ### Modules API Additions The reply parsing code on `module.c` was also removed and the new resp_parser is used instead. In addition, the RedisModuleCallReply was also extracted to a separate unit located on `call_reply.c` (in the future, this unit will also be used by Redis Function). A nice side effect of unified parsing is that modules now also support resp3. Resp3 can be enabled by giving `3` as a parameter to the fmt argument of `RM_Call`. It is also possible to give `0`, which will indicate an auto mode. i.e, Redis will automatically chose the reply protocol base on the current client set on the RedisModuleCtx (this mode will mostly be used when the module want to pass the reply to the client as is). In addition, the following RedisModuleAPI were added to allow analyzing resp3 replies: * New RedisModuleCallReply types: * `REDISMODULE_REPLY_MAP` * `REDISMODULE_REPLY_SET` * `REDISMODULE_REPLY_BOOL` * `REDISMODULE_REPLY_DOUBLE` * `REDISMODULE_REPLY_BIG_NUMBER` * `REDISMODULE_REPLY_VERBATIM_STRING` * `REDISMODULE_REPLY_ATTRIBUTE` * New RedisModuleAPI: * `RedisModule_CallReplyDouble` - getting double value from resp3 double reply * `RedisModule_CallReplyBool` - getting boolean value from resp3 boolean reply * `RedisModule_CallReplyBigNumber` - getting big number value from resp3 big number reply * `RedisModule_CallReplyVerbatim` - getting format and value from resp3 verbatim reply * `RedisModule_CallReplySetElement` - getting element from resp3 set reply * `RedisModule_CallReplyMapElement` - getting key and value from resp3 map reply * `RedisModule_CallReplyAttribute` - getting a reply attribute * `RedisModule_CallReplyAttributeElement` - getting key and value from resp3 attribute reply * New context flags: * `REDISMODULE_CTX_FLAGS_RESP3` - indicate that the client is using resp3 Tests were added to check the new RedisModuleAPI ### Modules API Changes * RM_ReplyWithCallReply might return REDISMODULE_ERR if the given CallReply is in resp3 but the client expects resp2. This is not a breaking change because in order to get a resp3 CallReply one needs to specifically specify `3` as a parameter to the fmt argument of `RM_Call` (as mentioned above). Tests were added to check this change ### More small Additions * Added `debug set-disable-deny-scripts` that allows to turn on and off the commands no-script flag protection. This is used by the Lua resp3 tests so it will be possible to run `debug protocol` and check the resp3 parsing code. Co-authored-by:
Oran Agra <oran@redislabs.com> Co-authored-by:
Yossi Gottlieb <yossigo@gmail.com>
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- 03 Aug, 2021 1 commit
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Ariel Shtul authored
Add new Module APS for RESP3 responses: - RM_ReplyWithMap - RM_ReplyWithSet - RM_ReplyWithAttribute - RM_ReplySetMapLength - RM_ReplySetSetLength - RM_ReplySetAttributeLength - RM_ReplyWithBool Deprecate REDISMODULE_POSTPONED_ARRAY_LEN in favor of a generic REDISMODULE_POSTPONED_LEN Improve documentation Add tests Co-authored-by:
Guy Benoish <guy.benoish@redislabs.com> Co-authored-by:
Oran Agra <oran@redislabs.com>
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- 01 Aug, 2021 1 commit
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Guy Korland authored
Co-authored-by:
Yossi Gottlieb <yossigo@gmail.com>
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- 19 Jul, 2021 1 commit
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Huang Zhw authored
Fix module info genModulesInfoStringRenderModulesList lack separator when there's more than one module in the list. Co-authored-by:
Oran Agra <oran@redislabs.com>
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- 01 Jul, 2021 1 commit
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Yossi Gottlieb authored
Modules that use background threads with thread safe contexts are likely to use RM_BlockClient() without a timeout function, because they do not set up a timeout. Before this commit, `CLIENT UNBLOCK` would result with a crash as the `NULL` timeout callback is called. Beyond just crashing, this is also logically wrong as it may throw the module into an unexpected client state. This commits makes `CLIENT UNBLOCK` on such clients behave the same as any other client that is not in a blocked state and therefore cannot be unblocked.
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- 22 Jun, 2021 2 commits
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Oran Agra authored
- Introduce a new sdssubstr api as a building block for sdsrange. The API of sdsrange is many times hard to work with and also has corner case that cause bugs. sdsrange is easy to work with and also simplifies the implementation of sdsrange. - Revert the fix to RM_StringTruncate and just use sdssubstr instead of sdsrange. - Solve valgrind warnings from the new tests introduced by the previous PR.
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Evan authored
Previously, passing 0 for newlen would not truncate the string at all. This adds handling of this case, freeing the old string and creating a new empty string. Other changes: - Move `src/modules/testmodule.c` to `tests/modules/basics.c` - Introduce that basic test into the test suite - Add tests to cover StringTruncate - Add `test-modules` build target for the main makefile - Extend `distclean` build target to clean modules too
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- 16 Jun, 2021 2 commits
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chenyang8094 authored
Create new module type enhanced callbacks: mem_usage2, free_effort2, unlink2, copy2. These will be given a context point from which the module can obtain the key name and database id. In addition the digest and defrag context can now be used to obtain the key name and database id.
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Uri Shachar authored
* Cleaning up the cluster interface by moving almost all related declarations into cluster.h (no logic change -- just moving declarations/definitions around) This initial effort leaves two items out of scope - the configuration parsing into the server struct and the internals exposed by the clusterNode struct. * Remove unneeded declarations of dictSds* Ideally all the dictSds functionality would move from server.c into a dedicated module so we can avoid the duplication in redis-benchmark/cli * Move crc16 back into server.h, will be moved out once we create a seperate header file for hashing functions
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- 10 Jun, 2021 1 commit
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Binbin authored
This PR adds a spell checker CI action that will fail future PRs if they introduce typos and spelling mistakes. This spell checker is based on blacklist of common spelling mistakes, so it will not catch everything, but at least it is also unlikely to cause false positives. Besides that, the PR also fixes many spelling mistakes and types, not all are a result of the spell checker we use. Here's a summary of other changes: 1. Scanned the entire source code and fixes all sorts of typos and spelling mistakes (including missing or extra spaces). 2. Outdated function / variable / argument names in comments 3. Fix outdated keyspace masks error log when we check `config.notify-keyspace-events` in loadServerConfigFromString. 4. Trim the white space at the end of line in `module.c`. Check: https://github.com/redis/redis/pull/7751 5. Some outdated https link URLs. 6. Fix some outdated comment. Such as: - In README: about the rdb, we used to said create a `thread`, change to `process` - dbRandomKey function coment (about the dictGetRandomKey, change to dictGetFairRandomKey) - notifyKeyspaceEvent fucntion comment (add type arg) - Some others minor fix in comment (Most of them are incorrectly quoted by variable names) 7. Modified the error log so that users can easily distinguish between TCP and TLS in `changeBindAddr`
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- 08 Jun, 2021 1 commit
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guybe7 authored
sometimes you can be very deep in the call stack, without access to argv. once you're there you may want your reply/log to contain the command name.
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- 03 Jun, 2021 1 commit
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Wen Hui authored
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- 01 Jun, 2021 3 commits
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zhaozhao.zz authored
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zhaozhao.zz authored
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zhaozhao.zz authored
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- 18 May, 2021 1 commit
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Eduardo Felipe authored
Add documentation for `firstkey`, `lastkey` and `keystep` parameters of `RedisModule_CreateCommand` (#8883) These parameters of RedisModule_CreateCommand were previously undocumented but they are needed for ACL to check permission on keys and by Redis Cluster to figure our how to route the command. Co-authored-by:
Eduardo Felipe Castegnaro <edufelipe@onsign.tv> Co-authored-by:
Oran Agra <oran@redislabs.com>
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- 03 May, 2021 1 commit
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Uri Shachar authored
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- 02 May, 2021 1 commit
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sundb authored
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- 26 Apr, 2021 1 commit
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sundb authored
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- 25 Apr, 2021 2 commits
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sundb authored
This change does not fix any bugs. 1. ```moduleUnload``` should return ```C_OK``` or ```C_ERR```, not ```REDISMODULE_ERR``` or ```REDISMODULE_OK```. 2. The ```where``` parameter of ```listTypePush``` and ```listTypePop``` should be ```LIST_HEAD``` or ```LIST_TAIL```
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Istemi Ekin Akkus authored
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- 21 Apr, 2021 1 commit
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Uri Shachar authored
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- 19 Apr, 2021 1 commit
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Hanna Fadida authored
Adding a new type mask for key space notification, REDISMODULE_NOTIFY_MODULE, to enable unique notifications from commands on REDISMODULE_KEYTYPE_MODULE type keys (which is currently unsupported). Modules can subscribe to a module key keyspace notification by RM_SubscribeToKeyspaceEvents, and clients by notify-keyspace-events of redis.conf or via the CONFIG SET, with the characters 'd' or 'A' (REDISMODULE_NOTIFY_MODULE type mask is part of the '**A**ll' notation for key space notifications). Refactor: move some pubsub test infra from pubsub.tcl to util.tcl to be re-used by other tests.
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- 13 Apr, 2021 3 commits
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Viktor Söderqvist authored
* Modules API docs: Link API function names to their definitions Occurrences of API functions are linked to their definition. A function index with links to all functions is added on the bottom of the page. Comment blocks in module.c starting with a markdown h2 heading are used as sections. A table of contents is generated from these headings. The functions names are changed from h2 to h3, since they are now rendered as sub-headings within each section. Existing sections in module.c are used with some minor changes. Some documentation text is added or sligtly modified. The markdown renderer will add IDs which may clash with our generated IDs. By prefixing section IDs with "section-" we make them different. Replace double dashes with a unicode long ndash
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Viktor Söderqvist authored
In a code example, using RedisModule_FreeString instead of RedisModule_Free makes it behave correctly regardless of whether automatic memory is used or not.
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