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spiffs: Add esp_spiffs_check() function

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esp_spiffs_check() exposes SPIFFS_check() functionality to the user
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Adam Múdry
2021-10-19 16:24:53 +02:00
committed by BOT
parent 59202fe43e
commit 36db6a6681
7 changed files with 74 additions and 2 deletions
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docs/en/api-reference/storage/spiffs.rst
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@@ -17,6 +17,7 @@ Notes
- SPIFFS is able to reliably utilize only around 75% of assigned partition space.
- When the filesystem is running out of space, the garbage collector is trying to find free space by scanning the filesystem multiple times, which can take up to several seconds per write function call, depending on required space. This is caused by the SPIFFS design and the issue has been reported multiple times (e.g. `here <https://github.com/espressif/esp-idf/issues/1737>`_) and in the official `SPIFFS github repository <https://github.com/pellepl/spiffs/issues/>`_. The issue can be partially mitigated by the `SPIFFS configuration <https://github.com/pellepl/spiffs/wiki/Configure-spiffs>`_.
- Deleting a file does not always remove the whole file, which leaves unusable sections throughout the filesystem.
- When ESP32 experiences a power loss during a file system operation it could result in SPIFFS corruption. However the file system still might be recovered via ``esp_spiffs_check`` function. More details in the official SPIFFS `FAQ <https://github.com/pellepl/spiffs/wiki/FAQ>`.
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