TimJTi commented on code in PR #2178: URL: https://github.com/apache/nuttx-apps/pull/2178#discussion_r1385188953
########## 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, Review Comment: But it has been loaded from a file that has been found. Why do you have to create it (again)? -- 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
