mikecarper
e2a1828987
Recover usable ESP32 preferences and channels before permitting replacement; keep identity and ACL persistence transactional and complete. Preserve MQTT commit boundaries, restore OTA identity and policy after deferred allocation, retain radio gain retries, and reject invalid flood limits. Add production-path fault regressions and CI coverage.
38 lines
1.3 KiB
C++
38 lines
1.3 KiB
C++
#pragma once
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#include <stdio.h>
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#if defined(ESP32_PLATFORM)
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#include <errno.h>
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#include <sys/stat.h>
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#endif
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namespace mesh {
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// Unlike ESP32 FS::exists(), this probe does not open the file. A failed read
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// must not turn a previously committed image into an apparently fresh store.
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template <typename Filesystem>
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bool filePresence(Filesystem* fs, const char* path, bool& present) {
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if (fs == nullptr || path == nullptr) return false;
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#if defined(ESP32_PLATFORM)
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char absolute[128];
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const int length = snprintf(absolute, sizeof(absolute), "/spiffs%s", path);
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if (length < 0 || static_cast<size_t>(length) >= sizeof(absolute)) return false;
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struct stat info;
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const int result = ::stat(absolute, &info);
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if (result != 0 && errno != ENOENT) return false;
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present = result == 0;
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#elif defined(NRF52_PLATFORM) || defined(STM32_PLATFORM)
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struct lfs_info info;
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fs->_lockFS();
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const int result = lfs_stat(fs->_getFS(), path, &info);
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fs->_unlockFS();
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if (result != 0 && result != LFS_ERR_NOENT) return false;
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present = result == 0;
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#else
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// Arduino-Pico exposes only boolean metadata status. Its exists() does not
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// open the file, but cannot distinguish absent files from metadata errors.
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present = fs->exists(path);
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#endif
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return true;
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}
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} // namespace mesh
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