Function _Config_set

src/commands/cmd_config.c:67–146

}

void _Config_set
(
	RedisModuleCtx *ctx,
	RedisModuleString **argv,
	int argc
) {
	//--------------------------------------------------------------------------
	// validate configuration
	//--------------------------------------------------------------------------

	// dryrun configuration, make sure all configurations are valid
	for(int i = 0; i < argc; i += 2) {
		RedisModuleString *key = argv[i];
		RedisModuleString *val = argv[i+1];

		//----------------------------------------------------------------------
		// retrieve and validate config field
		//----------------------------------------------------------------------

		Config_Option_Field config_field;
		const char *config_name = RedisModule_StringPtrLen(key, NULL);
		if(!Config_Contains_field(config_name, &config_field)) {
			RedisModule_ReplyWithError(ctx, "Unknown configuration field");
			return;
		}

		// ensure field is a runtime configuration
		bool configurable_field = false;
		for(int i = 0; i < RUNTIME_CONFIG_COUNT; i++) {
			if(RUNTIME_CONFIGS[i] == config_field) {
				configurable_field = true;
				break;
			}
		}
	
		// field is not allowed to be reconfigured
		if(!configurable_field) {
			RedisModule_ReplyWithError(ctx, "This configuration parameter cannot be set at run-time");
			return;
		}

		// make sure value is valid
		char *error = NULL;
		const char *val_str = RedisModule_StringPtrLen(val, NULL);
		if(!Config_Option_dryrun(config_field, val_str, &error)) {
			if(error != NULL) {
				RedisModule_ReplyWithError(ctx, error);
			} else {
				char *errmsg;
				int rc __attribute__((unused));
				rc = asprintf(&errmsg, "Failed to set config value %s to %s", config_name, val_str);
				RedisModule_ReplyWithError(ctx, errmsg);
				free(errmsg);
			}
			return;
		}
	}