TimJTi commented on code in PR #2178: URL: https://github.com/apache/nuttx-apps/pull/2178#discussion_r1385209409
########## examples/settings/settings_main.c: ########## @@ -0,0 +1,276 @@ +/**************************************************************************** + * apps/examples/settings/settings_main.c + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdio.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <errno.h> +#include <sys/mount.h> + +#include "system/settings.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * settings_main + ****************************************************************************/ + +int main(int argc, FAR char *argv[]) +{ + int ret; + int fd; + enum settings_type_e stype; + char path[50]; + char *teststr = ""; + int testval = 0x5aa5; + char readstr[CONFIG_SETTINGS_VALUE_SIZE]; + enum storage_type_e storage_type = STORAGE_BINARY; + bool flag_present = false; + struct stat sbuf; + + ASSERT(0); + if ((argc < 1) || *argv[1] == 0 || *(argv[1] + 1) == 0) + { + goto print_help; + } + + if (*argv[1] == '-') + { + flag_present = true; + if (*(argv[1] + 1) == 'b') + { + storage_type = STORAGE_BINARY; + } + else if (*(argv[1] + 1) == 't') + { + storage_type = STORAGE_TEXT; + } + else + { + goto print_help; + } + } + + if (flag_present && argc < 2) + { + goto print_help; + } + +#ifdef CONFIG_EXAMPLES_SETTINGS_USE_TMPFS +# ifndef CONFIG_FS_TMPFS +# error TMPFS must be enabled +# endif +# ifndef CONFIG_LIBC_TMPDIR +# error LIBC_TMPDIR must be defined +# endif + if (stat(CONFIG_LIBC_TMPDIR, &sbuf)) + { + ret = nx_mount(NULL, CONFIG_LIBC_TMPDIR, "tmpfs", 0, NULL); + if (ret < 0) + { + printf("ERROR: Failed to mount tmpfs at %s: %d\n", + CONFIG_LIBC_TMPDIR, ret); + goto end; + } + } + + strcpy(path, CONFIG_LIBC_TMPDIR); + strcat(path, "/settings"); +#else + strcpy(path, CONFIG_EXAMPLES_SETTINGS_EXISTING_STORAGE); + if (path == NULL) + { + printf("Settings filepath is empty!"); + goto end; + } + + strcat(path, "/settings"); +#endif + + printf("Example of settings usage: %s. Path: %s\n", + ((storage_type == STORAGE_TEXT) ? "text" : "binary"), path); + printf("-------------------------------------------------------\n"); + + ret = settings_init(); + if (ret < 0) + { + printf("settings init failed: %d", ret); + goto end; + } + + ret = settings_setstorage(path, storage_type); + if (ret == -ENOENT) + { + printf("INFO: no existing binary settings file found. Creating it.\n"); + fd = open(path, O_CREAT); + if (fd < 0) + { + printf("failed to create settings file\n"); + goto end; + } + + close(fd); + } + else if (ret < 0) + { + printf("settings setstorage failed: %d\n", ret); + goto end; + } + else + { + printf("INFO: a settings file was found and loaded\n"); + ret = settings_get("v1", SETTING_STRING, readstr, + CONFIG_SETTINGS_VALUE_SIZE); + if (ret < 0) + { + printf("settings retrieve failed: %d\n", ret); + goto end; + } + + printf("Retrieved settings value (v1) with value:%s\n", + readstr); + } + + printf("Creating an integer settings value (v1) with value:0x%x\n", + testval); + ret = settings_create("v1", SETTING_INT, testval); + if (ret < 0) + { + printf("settings create failed: %d\n", ret); + goto end; + } + + ret = settings_type("v1", &stype); + if (ret < 0) + { + printf("failed to read settings type: %d\n", ret); + goto end; + } + + printf("Retrieved setting type is:%d\n", stype); + + ret = settings_get("v1", SETTING_INT, &testval); + if (ret < 0) + { + printf("settings retrieve failed: %d\n", ret); + goto end; + } + + printf("Retrieved integer settings value (v1) with value:0x%x\n", + testval); + + ret = settings_get("v1", SETTING_BOOL, &testval); + if (ret < 0) + { + printf("Deliberate fail: BOOL type requested not INT. Error:%d\n", + ret); + } + + ret = settings_get("v2", SETTING_INT, &testval); + if (ret < 0) + { + printf("Deliberate fail: non-existent setting requested. Error:%d\n", + ret); + } + + teststr = "I'm a string!"; + printf("Changing an integer settings value (v1) to string:%s\n", + teststr); + ret = settings_create("v1", SETTING_STRING, teststr); + if (ret < 0) + { + printf("settings changed failed: %d\n", ret); + goto end; + } + + ret = settings_get("v1", SETTING_STRING, &readstr, + CONFIG_SETTINGS_VALUE_SIZE); + if (ret < 0) + { + printf("settings retrieve failed: %d\n", ret); + goto end; + } + + printf("Retrieved string settings value (v1) with value:%s\n", + readstr); + + FAR struct in_addr save_ip; + FAR struct in_addr load_ip; + save_ip.s_addr = HTONL(0xc0a86401); + ret = settings_create("IP0", SETTING_IP_ADDR, &save_ip); + if (ret < 0) + { + printf("IP address settings create failed: %d\n", ret); + goto end; + } + + printf("Creating an IP settings value (IP0) with value:0x%08lx\n", + save_ip.s_addr); Review Comment: Yep, got swapped around when I tweaked it I think. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@nuttx.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
