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FS doesnt seem to work from BLE service - FileOpen, DirOpen etc

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难度
4/5
预计耗时
3-5 天
新手友好度
30/100
Issue 类型
缺陷
描述清晰度
需要澄清
活跃度
停滞
技术栈
cpp
领域
embedded-iot

调研方向

首先将 TestService 代码与内置的 Settings 服务和控制器进行比较,然后检查 BLE 服务中 FS.FileOpen、FS.DirOpen 和 NimbleController 的行为。重现 F:/ 和 / 路径的情况,并将其与 Infinisim 和 watch-face 的行为进行比较;完成的标准是确定该服务为何会收到这些错误或发生崩溃,并记录可正常工作的访问模式。

由索引模型根据 Issue 内容生成。

描述

Im trying to implement a data file in my BLE service loaded by NimbleController, using FS, but have encountered a brick wall.

When using "F:/events.dat", I am constantly getting errors back - either -2 (no entry), or -84 (corrupt).
When using "/events.dat", the device just crashes.

The same things are happening for DirOpen, using "F:/" and "/" paths respectively.

Im trying to follow whats being done in built in services and controllers, like Settings, which seem to work without issue. Also, my code works fine on Infinisim.

This issue does not occur if I transplant my code into an app like a watch face.

Am I doing something wrong here?

debug_log is a function ive defined for logging to the screen, defined much like printf.

void TestService::SaveEventsLog() {
  debug_log("app", "SaveEventsLog");

  lfs_file_t saveFile;

  int file_operation_result = fs.FileOpen(&saveFile, "F:/events.dat", LFS_O_WRONLY | LFS_O_CREAT);
  if (file_operation_result < LFS_ERR_OK) {
    debug_log("app", "saveFile open failed: %d", file_operation_result);

    if (file_operation_result == LFS_ERR_CORRUPT) {
      fs.FileDelete("F:/events.dat");
      debug_log("app", "saveFile corrupt - deleting");
    }
    return;
  }

  debug_log("app", "saveFile opened");

  struct SaveData {
    uint8_t version = 1;
    std::vector<EventLogEntry> data;
  } saveData;

  saveData.data = eventLog;

  file_operation_result = fs.FileWrite(&saveFile, reinterpret_cast<uint8_t*>(&saveData), sizeof(saveData));
  if (file_operation_result < LFS_ERR_OK) {
    debug_log("app", "saveFile write failed: %d", file_operation_result);
  } else {
    debug_log("app", "saveFile saved");
  }

  file_operation_result = fs.FileClose(&saveFile);
  if (file_operation_result < LFS_ERR_OK) {
    debug_log("app", "saveFile close failed: %d", file_operation_result);
  } else {
    debug_log("app", "saveFile closed");
  }
}
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