138 lines
4.0 KiB
C
138 lines
4.0 KiB
C
#include "spiffs.h"
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static const char *TAG = "SPIFFS";
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/**
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* @brief 初始化并挂载 SPIFFS 文件系统
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* @param base_path 挂载点路径（如 "/spiffs"）
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* @return esp_err_t ESP_OK 成功，其他失败
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*/
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esp_err_t spiffs_init(const char *base_path)
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{
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ESP_LOGI(TAG, "正在初始化 SPIFFS...");
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esp_vfs_spiffs_conf_t conf = {
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.base_path = base_path,
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.partition_label = NULL, // 使用第一个找到的 SPIFFS 分区
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.max_files = 10, // 最大打开文件数
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.format_if_mount_failed = true // 如果挂载失败则格式化
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};
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// 挂载 SPIFFS 分区
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esp_err_t ret = esp_vfs_spiffs_register(&conf);
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if (ret != ESP_OK)
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{
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if (ret == ESP_FAIL)
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{
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ESP_LOGE(TAG, "挂载 SPIFFS 失败");
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}
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else if (ret == ESP_ERR_NOT_FOUND)
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{
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ESP_LOGE(TAG, "未找到 SPIFFS 分区");
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}
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else
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{
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ESP_LOGE(TAG, "SPIFFS 初始化失败 (%s)", esp_err_to_name(ret));
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}
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return ret;
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}
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ESP_LOGI(TAG, "SPIFFS 挂载成功，挂载点: %s", base_path);
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// 获取分区信息
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size_t total = 0, used = 0;
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ret = esp_spiffs_info(NULL, &total, &used);
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if (ret != ESP_OK)
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{
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ESP_LOGE(TAG, "获取 SPIFFS 分区信息失败 (%s)", esp_err_to_name(ret));
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}
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else
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{
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ESP_LOGI(TAG, "分区大小: 总共 %d KB, 已用 %d KB, 可用 %d KB",
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total / 1024, used / 1024, (total - used) / 1024);
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}
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return ESP_OK;
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}
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/**
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* @brief 列出 SPIFFS 文件（安全版本）
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*/
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void list_spiffs_files_safe(const char *base_path)
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{
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ESP_LOGI(TAG, "Listing files in %s:", base_path);
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DIR *dir = opendir(base_path);
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if (dir == NULL) {
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ESP_LOGE(TAG, "Failed to open directory %s: %s",
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base_path, strerror(errno));
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return;
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}
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struct dirent *entry;
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int count = 0;
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while ((entry = readdir(dir)) != NULL) {
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// 跳过 "." 和 ".."
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if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0) {
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continue;
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}
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// 方法1：使用固定大小缓冲区（512字节足够）
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char full_path[512];
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int ret = snprintf(full_path, sizeof(full_path), "%s/%s", base_path, entry->d_name);
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if (ret < 0) {
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ESP_LOGW(TAG, "Error formatting path for: %s", entry->d_name);
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continue;
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}
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if ((size_t)ret >= sizeof(full_path)) {
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ESP_LOGW(TAG, "Path truncated for: %s", entry->d_name);
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// 继续处理，但路径可能不完整
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}
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// 方法2：使用动态分配（如果文件名可能很长）
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// size_t path_len = strlen(base_path) + 1 + strlen(entry->d_name) + 1;
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// char *full_path = malloc(path_len);
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// if (full_path) {
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// snprintf(full_path, path_len, "%s/%s", base_path, entry->d_name);
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// // ... 使用 full_path
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// free(full_path);
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// }
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struct stat entry_stat;
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if (stat(full_path, &entry_stat) == -1) {
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ESP_LOGW(TAG, " %s - cannot stat: %s",
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entry->d_name, strerror(errno));
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continue;
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}
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if (S_ISDIR(entry_stat.st_mode)) {
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ESP_LOGI(TAG, " [DIR] %-32s", entry->d_name);
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} else {
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const char *unit = "B";
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double size = (double)entry_stat.st_size;
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if (size >= 1024.0 * 1024.0) {
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size /= 1024.0 * 1024.0;
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unit = "MB";
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} else if (size >= 1024.0) {
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size /= 1024.0;
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unit = "KB";
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}
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ESP_LOGI(TAG, " [FILE] %-32s %8.2f %s",
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entry->d_name, size, unit);
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}
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count++;
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}
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closedir(dir);
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if (count == 0) {
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ESP_LOGI(TAG, " No files found");
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} else {
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ESP_LOGI(TAG, "Total: %d items", count);
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}
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} |