diff --git a/src/commands.def b/src/commands.def index cd9f8e2984..f1677b286c 100644 --- a/src/commands.def +++ b/src/commands.def @@ -7397,6 +7397,29 @@ struct COMMAND_ARG MODULE_LOADEX_Args[] = { {MAKE_ARG("args",ARG_TYPE_STRING,-1,"ARGS",NULL,NULL,CMD_ARG_OPTIONAL|CMD_ARG_MULTIPLE,0,NULL)}, }; +/********** MODULE SET_ARGUMENT ********************/ + +#ifndef SKIP_CMD_HISTORY_TABLE +/* MODULE SET_ARGUMENT history */ +#define MODULE_SET_ARGUMENT_History NULL +#endif + +#ifndef SKIP_CMD_TIPS_TABLE +/* MODULE SET_ARGUMENT tips */ +#define MODULE_SET_ARGUMENT_Tips NULL +#endif + +#ifndef SKIP_CMD_KEY_SPECS_TABLE +/* MODULE SET_ARGUMENT key specs */ +#define MODULE_SET_ARGUMENT_Keyspecs NULL +#endif + +/* MODULE SET_ARGUMENT argument table */ +struct COMMAND_ARG MODULE_SET_ARGUMENT_Args[] = { +{MAKE_ARG("name",ARG_TYPE_STRING,-1,NULL,NULL,NULL,CMD_ARG_NONE,0,NULL)}, +{MAKE_ARG("arg",ARG_TYPE_STRING,-1,NULL,NULL,NULL,CMD_ARG_OPTIONAL|CMD_ARG_MULTIPLE,0,NULL)}, +}; + /********** MODULE UNLOAD ********************/ #ifndef SKIP_CMD_HISTORY_TABLE @@ -7425,6 +7448,7 @@ struct COMMAND_STRUCT MODULE_Subcommands[] = { {MAKE_CMD("list","Returns all loaded modules.","O(N) where N is the number of loaded modules.","4.0.0",CMD_DOC_NONE,NULL,NULL,"server",COMMAND_GROUP_SERVER,MODULE_LIST_History,0,MODULE_LIST_Tips,1,moduleCommand,2,CMD_ADMIN|CMD_NOSCRIPT,0,MODULE_LIST_Keyspecs,0,NULL,0)}, {MAKE_CMD("load","Loads a module.","O(1)","4.0.0",CMD_DOC_NONE,NULL,NULL,"server",COMMAND_GROUP_SERVER,MODULE_LOAD_History,0,MODULE_LOAD_Tips,0,moduleCommand,-3,CMD_NO_ASYNC_LOADING|CMD_ADMIN|CMD_NOSCRIPT|CMD_PROTECTED,0,MODULE_LOAD_Keyspecs,0,NULL,2),.args=MODULE_LOAD_Args}, {MAKE_CMD("loadex","Loads a module using extended parameters.","O(1)","7.0.0",CMD_DOC_NONE,NULL,NULL,"server",COMMAND_GROUP_SERVER,MODULE_LOADEX_History,0,MODULE_LOADEX_Tips,0,moduleCommand,-3,CMD_NO_ASYNC_LOADING|CMD_ADMIN|CMD_NOSCRIPT|CMD_PROTECTED,0,MODULE_LOADEX_Keyspecs,0,NULL,3),.args=MODULE_LOADEX_Args}, +{MAKE_CMD("set-argument","Sets module arguments to new values during runtime.","O(1)","8.2.0",CMD_DOC_NONE,NULL,NULL,"server",COMMAND_GROUP_SERVER,MODULE_SET_ARGUMENT_History,0,MODULE_SET_ARGUMENT_Tips,0,moduleCommand,-3,CMD_NO_ASYNC_LOADING|CMD_ADMIN|CMD_NOSCRIPT|CMD_PROTECTED,0,MODULE_SET_ARGUMENT_Keyspecs,0,NULL,2),.args=MODULE_SET_ARGUMENT_Args}, {MAKE_CMD("unload","Unloads a module.","O(1)","4.0.0",CMD_DOC_NONE,NULL,NULL,"server",COMMAND_GROUP_SERVER,MODULE_UNLOAD_History,0,MODULE_UNLOAD_Tips,0,moduleCommand,3,CMD_NO_ASYNC_LOADING|CMD_ADMIN|CMD_NOSCRIPT|CMD_PROTECTED,0,MODULE_UNLOAD_Keyspecs,0,NULL,1),.args=MODULE_UNLOAD_Args}, {0} }; diff --git a/src/commands/module-set-argument.json b/src/commands/module-set-argument.json new file mode 100644 index 0000000000..b60484e878 --- /dev/null +++ b/src/commands/module-set-argument.json @@ -0,0 +1,32 @@ +{ + "SET-ARGUMENT": { + "summary": "Sets module arguments to new values during runtime.", + "complexity": "O(1)", + "group": "server", + "since": "8.2.0", + "arity": -3, + "container": "MODULE", + "function": "moduleCommand", + "command_flags": [ + "NO_ASYNC_LOADING", + "ADMIN", + "NOSCRIPT", + "PROTECTED" + ], + "reply_schema": { + "const": "OK" + }, + "arguments": [ + { + "name": "name", + "type": "string" + }, + { + "name": "arg", + "type": "string", + "optional": true, + "multiple": true + } + ] + } +} diff --git a/src/module.c b/src/module.c index 570affec70..9e73b21982 100644 --- a/src/module.c +++ b/src/module.c @@ -13030,11 +13030,22 @@ int VM_RdbSave(ValkeyModuleCtx *ctx, ValkeyModuleRdbStream *stream, int flags) { return VALKEYMODULE_OK; } + +void updateModuleRunTimeArgument(struct ValkeyModule *module, void **argv, int argc) { + module->loadmod->argv = argc ? zmalloc(sizeof(robj *) * argc) : NULL; + module->loadmod->argc = argc; + for (int i = 0; i < argc; i++) { + module->loadmod->argv[i] = argv[i]; + incrRefCount(module->loadmod->argv[i]); + } +} + /* MODULE command. * * MODULE LIST * MODULE LOAD [args...] * MODULE LOADEX [[CONFIG NAME VALUE] [CONFIG NAME VALUE]] [ARGS ...] + * MODULE SET-ARGUMENT [args...] * MODULE UNLOAD */ void moduleCommand(client *c) { @@ -13048,6 +13059,8 @@ void moduleCommand(client *c) { " Load a module library from , passing to it any optional arguments.", "LOADEX [[CONFIG NAME VALUE] [CONFIG NAME VALUE]] [ARGS ...]", " Load a module library from , while passing it module configurations and optional arguments.", + "SET-ARGUMENT [ ...]", + " Set module arguments to new values during runtime.", "UNLOAD ", " Unload a module.", NULL}; @@ -13094,6 +13107,28 @@ void moduleCommand(client *c) { } } else if (!strcasecmp(subcmd, "list") && c->argc == 2) { addReplyLoadedModules(c); + } else if (!strcasecmp(subcmd, "set-argument") && c->argc >= 3) { + struct ValkeyModule *module = dictFetchValue(modules, c->argv[2]->ptr); + if (module != NULL) { + for (int i = 0; i < module->loadmod->argc; i++) { + decrRefCount(module->loadmod->argv[i]); + } + zfree(module->loadmod->argv); + robj **argv = NULL; + int argc = 0; + + if (c->argc > 3) { + argc = c->argc - 3; + argv = &c->argv[3]; + } + updateModuleRunTimeArgument(module, (void **)argv, argc); + + addReply(c, shared.ok); + } else { + addReplyError(c, "Error set arguments for module: no such module with that name "); + serverLog(LL_WARNING, "Error set arguments for module %s: no such module with that name", + (sds)c->argv[2]->ptr); + } } else { addReplySubcommandSyntaxError(c); return; diff --git a/tests/modules/Makefile b/tests/modules/Makefile index 1690b9b627..82813bb6f7 100644 --- a/tests/modules/Makefile +++ b/tests/modules/Makefile @@ -58,6 +58,7 @@ TEST_MODULES = \ eventloop.so \ moduleconfigs.so \ moduleconfigstwo.so \ + moduleparameter.so \ publish.so \ usercall.so \ postnotifications.so \ diff --git a/tests/modules/moduleparameter.c b/tests/modules/moduleparameter.c new file mode 100644 index 0000000000..30678f037a --- /dev/null +++ b/tests/modules/moduleparameter.c @@ -0,0 +1,24 @@ +#include "valkeymodule.h" +#include +#include +#include +#include + +int GET_HELLO(ValkeyModuleCtx *ctx, ValkeyModuleString **argv, int argc) { + return ValkeyModule_ReplyWithSimpleString(ctx, "This is update module parameter test module"); +} + +int ValkeyModule_OnLoad(ValkeyModuleCtx *ctx, ValkeyModuleString **argv, int argc) { + VALKEYMODULE_NOT_USED(argv); + VALKEYMODULE_NOT_USED(argc); + + if (ValkeyModule_Init(ctx,"myhello",1,VALKEYMODULE_APIVER_1) + == VALKEYMODULE_ERR) return VALKEYMODULE_ERR; + + + if (ValkeyModule_CreateCommand(ctx,"hello.hi", + GET_HELLO,"fast",0,0,0) == VALKEYMODULE_ERR) + return VALKEYMODULE_ERR; + + return VALKEYMODULE_OK; +} diff --git a/tests/unit/moduleapi/moduleconfigs.tcl b/tests/unit/moduleapi/moduleconfigs.tcl index 44f994d2d0..0ea5d94c1f 100644 --- a/tests/unit/moduleapi/moduleconfigs.tcl +++ b/tests/unit/moduleapi/moduleconfigs.tcl @@ -1,5 +1,7 @@ set testmodule [file normalize tests/modules/moduleconfigs.so] set testmoduletwo [file normalize tests/modules/moduleconfigstwo.so] +set testmoduleparameter [file normalize tests/modules/moduleparameter.so] + start_server {tags {"modules"}} { r module load $testmodule @@ -243,5 +245,21 @@ start_server {tags {"modules"}} { assert_equal [r config get moduleconfigs.memory_numeric] "moduleconfigs.memory_numeric 1024" } } + + test {Module Set-Argument command work} { + r module load $testmoduleparameter + + set t [r module list] + set modulename [lmap x [r module list] {dict get $x name}] + assert_not_equal [lsearch $modulename myhello] -1 + string match "" [lmap x [r module list] {dict get $x args}] + r module set-argument myhello 1 2 3 + r config rewrite + restart_server 0 true false + string match "1 2 3" [lmap x [r module list] {dict get $x args}] + } + } + +