{"id":14977742,"url":"https://github.com/redis/librdb","last_synced_at":"2025-07-14T00:09:05.565Z","repository":{"id":163303653,"uuid":"637728352","full_name":"redis/librdb","owner":"redis","description":"Redis RDB file parser, with JSON, RESP and RDB-loader extensions","archived":false,"fork":false,"pushed_at":"2025-06-05T08:47:16.000Z","size":724,"stargazers_count":44,"open_issues_count":3,"forks_count":15,"subscribers_count":6,"default_branch":"main","last_synced_at":"2025-07-09T00:25:49.492Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"","language":"C","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/redis.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null}},"created_at":"2023-05-08T09:34:25.000Z","updated_at":"2025-06-27T09:52:45.000Z","dependencies_parsed_at":"2024-01-04T10:26:00.181Z","dependency_job_id":"b06cdec9-90d2-4d19-a352-b31d560dd857","html_url":"https://github.com/redis/librdb","commit_stats":{"total_commits":65,"total_committers":4,"mean_commits":16.25,"dds":"0.46153846153846156","last_synced_commit":"2fdfc0c2bc914d643fe3f86e6715aeb843d8966e"},"previous_names":[],"tags_count":1,"template":false,"template_full_name":null,"purl":"pkg:github/redis/librdb","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/redis%2Flibrdb","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/redis%2Flibrdb/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/redis%2Flibrdb/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/redis%2Flibrdb/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/redis","download_url":"https://codeload.github.com/redis/librdb/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/redis%2Flibrdb/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":265160361,"owners_count":23720345,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-09-24T13:56:14.894Z","updated_at":"2025-07-14T00:09:05.551Z","avatar_url":"https://github.com/redis.png","language":"C","funding_links":[],"categories":[],"sub_categories":[],"readme":"# librdb\n\nThis is C library for parsing RDB files.\n\nThe Parser is implemented in the spirit of SAX parser. It fires off a series of events as\nit reads the RDB file from beginning to end, and callbacks to handlers registered on\nselected types of data.\n\n\nThe primary objective of this project is to offer an efficient and robust C library for\nparsing Redis RDB files. It also provides an extension library for parsing to JSON and RESP\nprotocols.\n\n## Getting Started\nIf you just wish to get a basic understanding of the library's functionality:\n\n    % make example\n\nTo see cool internal state printouts of the parser, set env-var `LIBRDB_DEBUG_DATA` beforehand:\n\n    % LIBRDB_DEBUG_DATA=1 make example\n\nTo build and run tests, you need to have cmocka unit testing and python3 installed:\n\n    % make test\n\nTo install into /usr/local/:\n\n    % make install\n\nTo run CLI extension of this library and let it parse RDB file to json:\n\n    % rdb-cli mixed_data_types.rdb json\n    [{\n      \"my_key\":\"Hello, Redis!\",\n      \"my_set\":[\"member1\",\"member2\"],\n      \"my_zset\":{\"Bob\":\"5\",\"Alice\":\"10\",\"Charlie\":\"15\"},\n      \"my_hash\":{\"field1\":\"value1\",\"field2\":\"field2\"},\n      \"my_list\":[\"item1\",\"item2\", \"item3\"],\n      \"my_stream\":{\n        \"entries\":[\n          { \"id\":\"1695649068107-0\", \"values\":{\"message\":\"Message1\"} },\n          { \"id\":\"1695649068110-0\", \"values\":{\"message\":\"Message2\"} },\n          { \"id\":\"1695893015933-0\", \"values\":{\"field1\":\"value1\", \"field2\":\"value2\", \"field3\":\"value3\"} }\n      ]}\n    }]\n\nTo generate formatted print:\n\n    rdb-cli dump.rdb print --key \"db%d,%k,%v\"\n    db0,key1,value1\n    db0,key2,value2\n    ...\n\nTo generate RESP commands:\n\n    % rdb-cli multiple_lists_strings.rdb resp\n    *2\n    $6\n    SELECT\n    $1\n    ...\n\nTo run against live Redis server and upload RDB file, assuming Redis is installed as well:\n\n    % redis-server --port 6379 \u0026 \n    % rdb-cli multiple_lists_strings.rdb redis -h 127.0.0.1 -p 6379\n    % redis-cli keys \"*\"\n    1) \"string2\"\n    2) \"mylist3\"\n    3) \"mylist2\"\n    4) \"mylist1\"\n    5) \"string1\"\n    6) \"lzf_compressed\"\n\n## Motivation behind this project\nThere is a genuine need by the Redis community for a versatile RDB file parser that can\nexport data, perform data analysis, or merely extract raw data from RDB and RESTORE it\nagainst a live Redis server. However, available parsers have shortcomings in some aspects\nsuch as lack of long-term support, lagging far behind the latest Redis release, and\nusually not being optimized for memory, performance, or high-traffic streaming for\nproduction environments. Additionally, most of them are not written in C, which limits the\nreuse of Redis components and potential to contribute back to Redis repo. To address these\nissues, it is worthwhile to develop a new parser with a modern architecture, that maybe\ncan also challenge the current integrated RDB parser of Redis and even replace it in the\nfuture.\n\n## Main building blocks\nThe RDB library parser composed of 3 main building blocks:\n\n       +--------+     +--------+     +----------+\n       | READER | --\u003e | PARSER | --\u003e | HANDLERS |\n       +--------+     +--------+     +----------+\n\n### Reader\nThe **Reader** gives interface to the parser to access the RDB source. It can be either\nreading from a file, a socket or user defined reader. Possible extensions might be reading \nfrom S3, gz file, or a live redis instance.\n\nThis block is optional. As an alternative, the parser can be fed with prefetched chunks of \ndata.\n\n### Parser\nThe **Parser** is the core engine. It will parse RDB file and trigger registered handlers.\n\nThe parser supports 3 sets of handlers to register, at 3 different levels of the\nparsed data:\n\n#### Level0 - Registration on raw data\nFor example, if a user wants to restore from RDB source, then he doesn't care much about\nthe different data-types, neither the internal RDB data structure, only to get raw data of\nwhatever serialized and replay it against a live Redis server with RESTORE command.\nIn that case registration on Level0 will do the magic.\n\n#### Level1 - Registration on RDB data-structures\nIf required to analyze memory consumption, for example, then there is no escape but to\ninspect \"low-level\" data structures of RDB file. The best way to achieve it, is\nregistration at level1 and pouring the logic to analyze each of the RDB data-structures\ninto corresponding callbacks.\n\n#### Level2 - Registration on Redis data-types\nIf we only care about DB logical data-types, for example in order to export data to\nanother framework, then we better register our callbacks at level2.\n\n### Handlers\nThe **Handlers** represent a set of builtin or user-defined functions that will \nbe called on the parsed data. Currently, librdb supports 2 built-in Handlers that \nconverts to JSON and RESSP and one extension to RESP handlers that in addition \ncan play it against live server.\n\nIt is possible to attach to parser more than one set of handlers at the same level.\nThat is, for a given data at a given level, the parser will call each of the handlers that\nregistered at that level. One reason to do so can be because usually retrieving RDB file\nis the most time-consuming task of the parser, and it can save time by making a single\nparse yet invoke multiple sets of handlers.\n\nMore common reason is that a handlers can be used also as a Filter to decide whether to\npropagate data to the next set of handlers in-line. Such built-in filters can be\nfound at extension library of this project. Note that for any given level, order of\ncalls to handlers will be the opposite to order of their registration to that level.\n\nFurthermore, it is also possible to attach multiple handlers at different levels, which is\ndescribed in the [Advanced](#Advanced) section.\n\n## Usage\nFollowing examples avoid error check to keep it concise. Full example can be found in\n`examples` directory. Note that there are different prefixes for parser functions in the\ncore library vs. extension library (\"RDB\" vs \"RDBX\").\n\n- Converting RDB file to JSON file:\n\n      RdbParser *parser = RDB_createParserRdb(NULL);\n      RDBX_createReaderFile(parser, \"dump.rdb\");\n      RDBX_createHandlersToJson(parser, \"db.json\", NULL);\n      RDB_parse(parser); \n      RDB_deleteParser(parser);\n\n- Parsing RDB file to RESP protocol:\n\n      RdbParser *parser = RDB_createParserRdb(NULL);\n      RDBX_createReaderFile(parser, rdbfile);\n      RdbxToResp *rdbToResp = RDBX_createHandlersToResp(parser, NULL);\n      RDBX_createRespToFileWriter(parser, rdbToResp, \"./rdbDump.resp\");\n      RDB_parse(parser);\n      RDB_deleteParser(parser);\n\n- Parsing RDB file with user callbacks:\n\n      RdbRes myHandleNewKey(RdbParser *parser, void *userData,  RdbBulk key, RdbKeyInfo *info) { \n          printf(\"KEY=%s\\n\", key);\n          return RDB_OK;\n      } \n\n      RdbParser *parser = RDB_createParserRdb(NULL);\n      RDBX_createReaderFile(parser, \"dump.rdb\");\n      RdbHandlersRawCallbacks callbacks = { .handleNewKey = myHandleNewKey };\n      RDB_createHandlersRaw(parser, \u0026callbacks, myUserData, NULL);\n      RDB_parse(parser);\n      RDB_deleteParser(parser);\n\n- Use builtin Handlers (filters) to propagate only specific keys\n\n      RdbParser *parser = RDB_createParserRdb(NULL);\n      RDBX_createReaderFile(parser, \"dump.rdb\");\n      RDBX_createHandlersToJson(parser, \"redis.json\", NULL);\n      RDBX_createHandlersFilterKey(parser, \"id_*\", 0 /*exclude*/);\n      RDB_parse(parser);\n      RDB_deleteParser(parser);\n\n- Parsing in memory data (without reader)\n\n      unsigned char rdbContent[] =  {'R', 'E', 'D', 'I', 'S', .... };\n      RdbParser *parser = RDB_createParserRdb(NULL);\n      RDBX_createHandlersToJson(parser, \"redis.json\", NULL);\n      RDB_parseBuff(parser, rdbContent, sizeof(rdbContent), 1 /*EOF*/);\n      RDB_deleteParser(parser);\n\n\nWhether it is Reader or Handlers, once a new block is created, it is being attached to the\nparser and the parse will take ownership and will release the blocks either during its own\ndestruction, or when newer block replacing old one.\n\n### rdb-cli usage\n\n    Usage: rdb-cli /path/to/dump.rdb [OPTIONS] {print|json|resp|redis} [FORMAT_OPTIONS]\n    OPTIONS:\n            -l, --log-file \u003cPATH\u003e         Path to the log file or stdout (Default: './rdb-cli.log')\n            -i, --ignore-checksum         Ignore RDB file checksum verification\n            -s, --show-progress \u003cMBytes\u003e  Show progress to STDOUT after every \u003cMBytes\u003e processed\n            -k, --key \u003cREGEX\u003e             Include only keys that match REGEX\n            -K  --no-key \u003cREGEX\u003e          Exclude all keys that match REGEX\n            -t, --type \u003cTYPE\u003e             Include only selected TYPE {str|list|set|zset|hash|module|func}\n            -T, --no-type \u003cTYPE\u003e          Exclude TYPE {str|list|set|zset|hash|module|func}\n            -d, --dbnum \u003cDBNUM\u003e           Include only selected db number\n            -D, --no-dbnum \u003cDBNUM\u003e        Exclude DB number\n            -e, --expired                 Include only expired keys\n            -E, --no-expired              Exclude expired keys\n\n    FORMAT_OPTIONS ('print'):\n            -a, --aux-val \u003cFMT\u003e           %f=Auxiliary-Field, %v=Auxiliary-Value (Default: \"\")\n            -k, --key \u003cFMT\u003e               %d=Db %k=Key %v=Value %t=Type %e=Expiry %r=LRU %f=LFU %i=Items\n                                          (Default: \"%d,%k,%v,%t,%e,%i\")\n            -o, --output \u003cFILE\u003e           Specify the output file. If not specified, output to stdout\n    \n    FORMAT_OPTIONS ('json'):\n            -i, --include \u003cEXTRAS\u003e        To include: {aux-val|func|stream-meta}\n            -f, --flatten                 Print flatten json, without DBs Parenthesis\n            -o, --output \u003cFILE\u003e           Specify the output file. If not specified, output to stdout\n    \n    FORMAT_OPTIONS ('redis'):\n            -h, --hostname \u003cHOSTNAME\u003e     Specify the server hostname (default: 127.0.0.1)\n            -p, --port \u003cPORT\u003e             Specify the server port (default: 6379)\n            -l, --pipeline-depth \u003cVALUE\u003e  Number of pending commands before blocking for responses\n            -u, --user \u003cUSER\u003e             Redis username for authentication\n            -P, --password \u003cPWD\u003e          Redis password for authentication\n            -a, --auth N [ARG1 ... ARGN]  An alternative authentication command. Given as vector of arguments\n    \n    FORMAT_OPTIONS ('redis'|'resp'):\n            -r, --support-restore         Use the RESTORE command when possible\n            -d, --del-before-write        Delete each key before writing. Relevant for non-empty db\n            -f, --func-replace-if-exist   Replace function-library if already exists in the same name rather than aborting\n            -t, --target-redis-ver \u003cVER\u003e  Specify the target Redis version. Helps determine which commands can\n                                          be applied. Particularly crucial if support-restore being used\n                                          as RESTORE is closely tied to specific RDB versions. If versions not\n                                          aligned the parser will generate higher-level commands instead.\n            -o, --output \u003cFILE\u003e           Specify the output file (For 'resp' only: if not specified, output to stdout)\n            -1, --single-db               Avoid SELECT command. DBs in RDB will be stored to db 0. Watchout for conflicts\n            -s, --start-cmd-num \u003cNUM\u003e     Start writing redis from command number\n            -e, --enum-commands           Command enumeration and tracing by preceding each generated RESP command\n                                          with debug command of type: `SET _RDB_CLI_CMD_ID_ \u003cCMD-ID\u003e`\n\n\n\u003ca name=\"Advanced\"\u003e\u003c/a\u003e\n## Advanced\n### Customized Reader\nThe built-in readers should be sufficient for most purposes. However, if they do not meet\nyour specific needs, you can use the `RDB_createReaderRdb()` helper function to create a\ncustom reader with its own reader function. The built-in reader file\n([readerFile.c](src/ext/readerFile.c)) can serve as a code reference for this purpose.\n\n### Asynchronous parser\nThe parser has been designed to handle asynchronous situation where it may temporarily\nnot have data to read from the RDB-reader, or not feed yet with more input buffers.\n\nBuilding on what was discussed previously, a reader can be implemented to support\nasynchronous reads by returning `RDB_STATUS_WAIT_MORE_DATA` for read requests. In such a\ncase, it's necessary to provide a mechanism for indicating to the application when the\nasynchronous operation is complete, so the application can call `RDB_parse()` again. The\nasync indication for read completion from the customized reader to the application is\nbeyond the scope of this library. A conceptual invocation of such flow can be:\n\n      myAsyncReader = RDB_createReaderRdb(parser, myAsyncRdFunc, myAsyncRdData, myAsyncRdDeleteFunc);\n      while(RDB_parse(parser) == RDB_STATUS_WAIT_MORE_DATA) {\n         my_reader_completed_await(myAsyncReader); \n      }\n\nAnother way to work asynchronously with the parser is just feeding the parser with chunks\nof streamed buffers by using the `RDB_parseBuff()` function:\n\n      int parseRdbToJson(int file_descriptor, const char *fnameOut)\n      {\n        RdbStatus status;\n        const int BUFF_SIZE = 200000;\n        RdbParser *parser = RDB_createParserRdb(NULL);\n        RDBX_createHandlersToJson(parser, fnameOut, NULL);\n        void *buf = malloc(BUFF_SIZE);\n        do {                        \n            int bytes_read = read(file_descriptor, buf, BUFF_SIZE);\n            if (bytes_read \u003c 0)  break; /* error */\n            status = RDB_parseBuff(parser, buf, bytes_read, bytes_read == 0);\n        } while (status == RDB_STATUS_WAIT_MORE_DATA);\n        RDB_deleteParser(parser);\n        free(buf);\n      } \n\n### Cancel parser execution\nTo cancel parsing in the middle of execution, the trigger should come from the registered\nhandlers, Simply by returning `RDB_ERR_CANCEL_PARSING`. If the parser is using builtin\nhandlers for parsing, and yet, you want that the parser will stop when some condition is\nmet, then it is required to write a dedicated customized handlers, user-defined callbacks,\nto give this indication and register it as well.\n\n### Pause parser and resume\nAt times, the application may need to execute additional tasks during parsing intervals,\nsuch as updating a progress bar or verifying that used memory remains within limit. To \nfacilitate this, the parser can be configured with a pause interval that specifies the \nnumber of bytes to be read from RDB source before pausing. This means that each time the \nparser is invoked, it will continue parsing until it has read a number of bytes equal to \nor greater than the configured interval, at which point it will automatically pause and \nreturn 'RDB_STATUS_PAUSED' in order to allow the application to perform other tasks. Example:\n\n      size_t intervalBytes = 1048576;  \n      RdbParser *parser = RDB_createParserRdb(memAlloc);\n      RDBX_createReaderFile(parser, \"dump.rdb\");\n      RDBX_createHandlersToJson(parser, \"db.json\", NULL);\n      RDB_setPauseInterval(parser, intervalBytes);\n      while (RDB_parse(parser) == RDB_STATUS_PAUSED) {\n          /* do something else in between */\n      } \n      RDB_deleteParser(parser);\n\nNote, if pause interval has elapsed and at the same time the parser need to return\nindication to wait for more data, then the parser will suppress pause indication and\nreturn `RDB_STATUS_WAIT_MORE_DATA` instead.\n\nHowever, there may be cases where it is more appropriate for the callback handlers to\ndetermine when to suspend the parser. In such cases, the callback should call\n`RDB_pauseParser()` to pause the parser. Note that, the parser may still call one or a few\nmore callbacks before actual pausing.\n\nSpecial cautious should be given when using this feature along with `RDB_parseBuff()`.\nSince the parser doesn't owns the buffer it reads from, when the application intends to\ncall again to `RDB_parseBuff()` to resume parsing after pause, it must call with the same\nbuffer that it supplied before the pause and only partially processed. The function\n`RDB_parseBuff()` will verify that the buffer reference is identical as before and continue\nwith the same offset it reached. This also implies that the buffer must remain persistent\nin such a scenario. Whereas it might seem redundant API to pass again the same values on\nresume, yet it highlights the required persistence of the reused buffer.\n\n### Memory optimization\nThe optimization of memory usage is a major focus for the parser, which is also evident in\nits API. The application can optionally choose not only to customize the malloc function\nused internally by the parser, but also the method for allocating data passed to the\ncallbacks. This includes the options:\n1. Using parser internal stack\n2. Using parser internal heap allocation (with refcount support for zero-copy).\n3. Using external allocation\n4. Using external allocation unless data is already prefetched in memory.\n\nThe external allocation options give the opportunity to allocate the data by the parser in\nspecific layout, as the application expects. For more information, lookup for\n`RdbBulkAllocType` at [librdb-api.h](api/librdb-api.h).\n\n### Multiple handlers at different levels\nSome of the more advanced usages might require parsing different data types at different\nlevels of the parser. As each level has its own way to handle the data with distinct set\nof callbacks, it is the duty of the application to configure for each RDB object type at\nwhat level it is needed to get handled by calling `RDB_handleByLevel()`. Otherwise, the\nparser will resolve it by parsing and calling handlers that are registered at lowest level.\n\nAs for the common callbacks to all levels, such as `handleStartRdb` or `handleNewDb`,\nif registered at different levels then all of them will be called, one by one, starting \nfrom handlers that are registered at the lowest level.\n\n## Implementation notes\nThe Redis RDB file format consists of a series of opcodes followed by the actual data that\nis being persisted. Each opcode represents a specific operation that needs to be performed\nwhen encoding or decoding data. The parsing process has been organized into separate\n**parsing-elements** which primarily align with RDB opcodes. Each parsing-element that\ncorrespond to RDB opcode usually carries out the following steps:\n\n1. Reads from RDB file required amount of data to process current state of parsing-element.\n2. If required, calls app's callbacks or store the parsed data for later use.\n3. Updates the state of the next parsing-element to be called.\n\n### Async support\nAs mentioned above, instead of blocking the parser on read command, the reader (and in\nturn the parser) can return to the caller `RDB_STATUS_WAIT_MORE_DATA` and will be ready to\nbe called again to continue parsing once more data become available.\n\nIn such scenario, any incomplete parsing-element will preserve its current state. As for\nany data that has already been read from the RDB reader - it cannot be read again from the\nreader. To address this issue, a unique **bulk-pool** data structure is used to route all\ndata being read from the RDB reader. It stores a reference to the allocations in a queue,\nand enable to **rollback** and replay later once more data becomes available, in an\nattempt to complete the parsing-element state. The **rollback** command basically rewinds\nthe queue of allocation and allows the exact same sequence of allocation requests to be\nprovided to the caller, however, instead of creating new allocations, the allocator\nreturns the next item in the queue. Otherwise, if the parser managed to reach a new\nparsing-element state, then all cached data in the pool will be **flushed**.\n\nThe bulk-pool is also known as parsing-element's **cache**. To learn more about it,\nrefer to the comment at the start of the file [bulkAlloc.h](src/lib/bulkAlloc.h).\n\n### Parsing-Element states\nHaving gained understanding of the importance of bulk-pool rollback and replay for\nasync parsing, it is necessary to address two crucial questions:\n\n1. If we are parsing, say a large list, is it necessary for the parser to rollback all\n   the way to the beginning of current parsing-element?\n2. If the parser has already called app callbacks, will it call them again on rollback?\n\n#### 1. Parsing-element internal states\nIt is essential to break down complex parsing elements with multiple items into internal\niterative states. This ensures that any asynchronous event will cause the parser to\nrollback to its last valid iterative state, rather than all the way back to the beginning\nof the parsing element. For instance, in the case of a list opcode, the corresponding\nparsing element (See function `elementList`) will comprise an entry state that parses\nthe number of elements in the list from the RDB file and an iterative state that parses\neach subsequent node in the list. In case of rollback only the last node will be parsed\nagain rather than parsing the entire list from start.\n\nThe parsing-element cache gets flushed on each parsing-element state transition. This\nprevents the parser from reading outdated buffers from the cache that belong to the\nprevious state in case of a rollback scenario, ensuring that consecutive states are\nclearly differentiated.\n\n#### 2. Defining Safe-state\nRegarding the second question, before making a callback to the application, the parsing\nelement must first ensure that its state reached a **safe state**. That is, there should\nbe no new attempts to read the RDB file until the end of current state that may result in\nrollbacks. Otherwise, on rollback, the parser may end up calling the same application\ncallback more than once.\n\n### Caching and garbage-collector\nAs mentioned above the parsing-element cache will be flushed whenever next parsing-element\nis set or when the parsing-element state is updated. This way we also gain along the way\na cache with garbage collector capabilities at hand that can also serve parsing-element\nfor its own internal allocations, for example, after reading compressed data from RDB\nfile, the parser can allocate a new buffer from cache for decompression operation without\nthe worry to release it at the end or in case of an error.\n\n### State machine parser\nThe parsing-elements in the implementation are partially designed using a state machine\napproach. Each parsing-element calls indirectly the next one, and the main parsing loop\ntriggers the next parsing element through the `parserMainLoop` function. This\napproach not only adds an extra layer of control to the parser along execution steps, but\nalso enables parsing of customized RDB files or even specific parts of the file. This\nfunctionality can be further enhanced as needed.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fredis%2Flibrdb","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fredis%2Flibrdb","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fredis%2Flibrdb/lists"}