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88af96c7a2
Nowdays we do not trigger LUA GC after loading lua script. This means that when a large number of scripts are loaded, such as when functions are propagating from the master to the replica, if the LUA scripts are never touched on the replica, the garbage might remain there indefinitely. Before this PR, we would share a gc_count between scripts and functions. This means that, under certain circumstances, the GC trigger for scripts and functions was not fair. For example, loading a large number of scripts followed by a small number of functions could result in the functions triggering GC. In this PR, we assign a unique `gc_count` to each of them, so the GC triggers between them will no longer affect each other. on the other hand, this PR will to bring regession for script loading commands(`FUNCTION LOAD` and `SCRIPT LOAD`), but they are not hot path, we can ignore it, and it will be replaced https://github.com/redis/redis/pull/13375 in the future. --------- Co-authored-by: Oran Agra <oran@redislabs.com>
67 lines
2.2 KiB
C
67 lines
2.2 KiB
C
/*
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* Copyright (c) 2009-Present, Redis Ltd.
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* All rights reserved.
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*
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* Licensed under your choice of the Redis Source Available License 2.0
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* (RSALv2) or the Server Side Public License v1 (SSPLv1).
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*/
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#ifndef __SCRIPT_LUA_H_
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#define __SCRIPT_LUA_H_
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/*
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* script_lua.c unit provides shared functionality between
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* eval.c and function_lua.c. Functionality provided:
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*
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* * Execute Lua code, assuming that the code is located on
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* the top of the Lua stack. In addition, parsing the execution
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* result and convert it to the resp and reply ot the client.
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*
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* * Run Redis commands from within the Lua code (Including
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* parsing the reply and create a Lua object out of it).
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*
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* * Register Redis API to the Lua interpreter. Only shared
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* API are registered (API that is only relevant on eval.c
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* (like debugging) are registered on eval.c).
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*
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* Uses script.c for interaction back with Redis.
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*/
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#include "server.h"
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#include "script.h"
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#include <lua.h>
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#include <lauxlib.h>
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#include <lualib.h>
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#define REGISTRY_RUN_CTX_NAME "__RUN_CTX__"
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#define REGISTRY_SET_GLOBALS_PROTECTION_NAME "__GLOBAL_PROTECTION__"
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#define REDIS_API_NAME "redis"
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typedef struct errorInfo {
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sds msg;
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sds source;
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sds line;
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int ignore_err_stats_update;
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}errorInfo;
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void luaRegisterRedisAPI(lua_State* lua);
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sds luaGetStringSds(lua_State *lua, int index);
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void luaRegisterGlobalProtectionFunction(lua_State *lua);
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void luaSetErrorMetatable(lua_State *lua);
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void luaSetAllowListProtection(lua_State *lua);
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void luaSetTableProtectionRecursively(lua_State *lua);
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void luaRegisterLogFunction(lua_State* lua);
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void luaRegisterVersion(lua_State* lua);
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void luaPushErrorBuff(lua_State *lua, sds err_buff);
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void luaPushError(lua_State *lua, const char *error);
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int luaError(lua_State *lua);
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void luaSaveOnRegistry(lua_State* lua, const char* name, void* ptr);
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void* luaGetFromRegistry(lua_State* lua, const char* name);
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void luaCallFunction(scriptRunCtx* r_ctx, lua_State *lua, robj** keys, size_t nkeys, robj** args, size_t nargs, int debug_enabled);
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void luaExtractErrorInformation(lua_State *lua, errorInfo *err_info);
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void luaErrorInformationDiscard(errorInfo *err_info);
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unsigned long luaMemory(lua_State *lua);
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void luaGC(lua_State *lua, int *gc_count);
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#endif /* __SCRIPT_LUA_H_ */
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